多摩川電子 List of Products and Services

Our first strength at Tamagawa Electronics is our analog high-frequency technology. Unlike digital technology, analog high-frequency technology is difficult to standardize and relies heavily on knowledge and experience. In recent years, due to aging and digitalization, even major electronics manufacturers have seen a decrease in analog engineers. However, we have been passing down our technical know-how accumulated over more than 50 years from veterans to younger staff, and our rich pool of talent is our greatest strength. Our second strength is the fusion of analog and digital technologies. We possess not only analog but also digital (software and control) technologies. For cutting-edge system design, digital technologies using FPGAs and DSPs are essential. We take pride in having many engineers who understand both analog and digital domains. At our company, we can handle everything from analog front-end to signal processing and control, enabling us to provide high-value-added one-stop ODM solutions.

• Circuit board design and manufacturing
• High frequency/microwave parts
• Prototype Services

The "Rack-Mount Optical Converter Supporting 100MHz to 6GHz" is an E/O and O/E converter that converts and transmits analog high-frequency signals into light. By replacing RF coaxial cables with optical fibers, it is possible to easily construct a low-loss transmission path. Up to 8 E/O and O/E modules can be mounted in a 1U size EIA 19-inch rack, allowing for a space-saving multi-channel configuration. 【Applications】 In high-frequency insensitive areas such as buildings, underground shopping streets, and tunnels, as well as between satellite ground stations and antennas, low-cost and low-loss transmission can be achieved by converting IF signals from long-distance coaxial transmission to optical. 【Features】 ■ Covers the mobile 5G (Sub6) band and supports a wide bandwidth from 100MHz to 6GHz ■ Capable of mounting up to 8 E/O and O/E modules in a 1U size EIA 19-inch rack ■ Allows for a space-saving multi-channel configuration ■ Each module can be inserted and removed from the back in a slot-type design ■ Configuration changes such as adding or removing modules can be made as needed *For more details, please refer to the product information or feel free to contact us.

• Converters and Transducers

This product is an SDR module designed to quickly build various RF systems. It is equipped with a high-performance RF-IC at the front end, supporting a wide frequency range and bandwidth. Additionally, it features an FPGA with an integrated ARM (CPU), allowing for high-speed communication processing using hardware logic as well as complex processing using the ARM (CPU). By adopting PCIE, USB 3.0, and Ethernet for the interfaces, it enables reliable high-speed communication with a PC. 【Features】 - Wide frequency range from 70MHz to 6GHz, supporting a broad bandwidth of signal bandwidths from 200kHz to 200MHz. - Equipped with an FPGA that includes an ARM (CPU). - Interfaces include PCIE, USB 3.0, and Ethernet. - Enables reliable high-speed communication with a PC. *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The "mmWave Wireless Module" is a wireless module that can be used in the millimeter wave band, which will be utilized in the fifth generation mobile communication system (5G). By integrating a multi-element antenna, a beamformer with variable antenna directivity, a frequency converter, and an SDR board within the device, it offers a flexible hardware configuration that can accommodate various solutions. Additionally, the configuration within this device can be partially customized, allowing us to cater to customer requests, such as customizations for the frequency converter only. 【Features】 ■ Supported frequency range: 24GHz and above ■ Usable in the millimeter wave band ■ Integration of beamformer, frequency converter, and SDR board within the device ■ Partial customization of the configuration within this device is possible ■ Customization for the frequency converter only can be accommodated according to customer requests *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

We would like to introduce the 'UPA/SPA/SNA/TPA series' that we handle. The "UPA series" is a highly reliable programmable attenuator developed based on the demands for high-speed switching, long lifespan, and miniaturization, in response to recent trends in energy saving and automation. In addition, we offer a lineup that includes the compact and lightweight "SPA series," as well as the "SNA series" and "TPA series." 【Features】 ■ UPA Series - Developed based on the demands for high-speed switching, long lifespan, and miniaturization - Usable in various applications ■ SPA Series - Usable in frequency ranges of DC to 2000MHz (Type A) and DC to 3500MHz (Type B) - Compact and lightweight *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

We would like to introduce our products: the 'URA-M/B, URA-CA/YA, and TRA series'. The "URA-M/B series" is a rotary step-type attenuator that can be used in the frequency range of DC to 3000 MHz. In addition, we offer the rotary step-type "URA-CA series," the case-storage type "TRA-602 series," and the standard attenuator "TRA series." 【Features】 ■ URA-M/B series - Rotary step-type that can be used in the frequency range of DC to 3000 MHz - The M type is compact and lightweight, making it easy to install in narrow spaces compared to conventional products - The B type achieves frequency characteristics that were difficult to realize in the past by using thin-film distributed constant elements *For more details, please refer to the related links or feel free to contact us.

• Other electronic parts

The "UFA-1009 Series" is a DC-pass coaxial fixed attenuator that can be used in the frequency range of 700MHz to 2000MHz. The operating temperature range is -20°C to +65°C. This attenuator can be used outdoors and complies with waterproof rating IPX65. 【Features】 ■ Usable in the frequency range of 700MHz to 2000MHz ■ Usable outdoors ■ Complies with waterproof rating IPX65 *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The OAL-229 is a rack-mounted E/O and O/E converter that can accept analog RF signals in the frequency range of 100MHz to 3600MHz. It can accommodate up to 8 modules of the E/O converter (EOC-173-1) and O/E converter (OEC-1070-1) in a 19-inch/1U rack-mounted unit. It is suitable for systems that require the transmission of signals from multiple antennas. 【Features】 ■ Capable of accepting analog RF signals in the frequency range of 100MHz to 3600MHz ■ Slim design ■ Can support up to 8 channels in a single device for multi-channel signal transmission ■ Ideal for systems that require the transmission of signals from multiple antennas ■ Performance guaranteed temperature range: 0 to +40℃ ■ Operating temperature range: -10 to +50℃ *For more details, please refer to the related links or feel free to contact us.

• converter

The OAL-228 is a wideband optical converter unit that supports analog RF signals in the frequency range of 700MHz to 10GHz. It can accommodate up to 4 units in a 3U size 19-inch rack (EIA standard). Each module is designed to be inserted and removed from the front, allowing for flexible configuration changes such as adding or removing modules. 【Features】 ■ Supports analog RF signals in the frequency range of 700MHz to 10GHz ■ Can accommodate up to 4 units in a 3U size 19-inch rack (EIA standard) ■ Each module is designed for front insertion and removal ■ Configuration can be changed flexibly, including adding or removing modules ■ Performance guaranteed temperature range: +10 to +40℃ ■ Operating guaranteed temperature range: 0 to +50℃ *For more details, please refer to the related links or feel free to contact us.

• converter

The "Semiconductor RF Burn-In Device for Testing" is a power testing device for high-frequency devices (hereafter referred to as FETs). Depending on the application, you can choose between a hot plate (heater) type and a constant temperature bath type. It is equipped with a safety circuit that safely stops the device without damaging the customer's FET. It is compatible with various lineups from major semiconductor manufacturers and can flexibly accommodate special FETs through in-house development. 【Features】 ■ Diverse device configurations ■ Strong against oscillation ■ Capable of stable operation ■ Can conduct burn-in tests at high temperatures ■ Proposes system construction tailored to the number of channels, FET packages, and testing conditions *For more details, please refer to the product information or feel free to contact us.

• Testing Equipment and Devices

The "Semiconductor DC Burn-in Test Device" is a power supply testing device for high-frequency devices (hereinafter referred to as FETs). It performs RF or DC power supply for reliability evaluation and screening during mass production, allowing FETs to be mounted on FET mounting fixtures (hereinafter referred to as fixtures) and enabling burn-in tests under high temperatures. We propose system configurations tailored to the number of channels, FET packages, and testing conditions. 【Features】 ■ Diverse device configurations ■ Strong against oscillation ■ Stable operation possible ■ Applies specified bias voltage to the gate and drain of the FET for power supply ■ Capable of setting arbitrary testing conditions for prototype evaluation, mass production, etc., and conducting reliability tests *For more details, please refer to the product information or feel free to contact us.

• Testing Equipment and Devices

Tamagawa Electronics is engaged in the development of "quasi-millimeter wave and millimeter wave high-frequency products" up to the 50GHz band. In the field of communication, for 5G, new frequency utilization in the SHF band and quasi-millimeter to millimeter wave bands is planned to achieve transmission speeds 100 times faster than conventional methods. These products are essential for the future of high-speed and large-capacity information and communication fields, and we are advancing development with this technical theme in mind. Our company also accommodates customization of various millimeter wave components and millimeter wave modules based on customer requests. 【Millimeter Wave Development Product Lineup (Excerpt)】 ■HPA ■Driver PA ■LNA ■BPF *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts
• Circuit board design and manufacturing

The "OVA-105" is a variable optical attenuator. By combining a step-variable attenuation plate and a continuously variable attenuation plate, it can achieve attenuation of up to 55dB. It is suitable for optical network systems, CATV systems, measurement of optical components, and calibration tools for optical measuring instruments. It supports both wavelengths of 1.31/1.55μm, and to accommodate systems that are susceptible to reflected light, an AngledPC type is also available as an option. 【Features】 ■ Variable optical attenuator ■ Capable of attenuating up to 55dB ■ No power supply required ■ Dial operation for variable optical attenuation ■ Supports both wavelengths of 1.31/1.55μm *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

We would like to introduce our "LTE-Advanced (3.5GHz) compatible components." We offer a lineup of attenuators, button attenuators, terminators, splitters, and directional couplers for mobile base stations that comply with the communication standard "LTE-Advanced." The frequency range covers up to 4GHz, making them suitable for level adjustment of various wireless equipment, terminating unused ports, and for distribution and combination. 【Features】 ■ A lineup of attenuators, button attenuators, terminators, splitters, and directional couplers for mobile base stations ■ Frequency coverage up to 4GHz ■ Usable for level adjustment of various wireless equipment, terminating unused ports, and for distribution and combination *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The "ZT Series" is a 50Ω to 75Ω impedance transformer that can be used over a wide frequency range with low reflection transmission. It comes in three types: a resistive type with a conversion loss of 6dB, a transformer type with very low conversion and insertion losses, and a microstrip line type with high power tolerance. You can choose according to your application. Additionally, we offer various input and output connectors, so please contact our sales department for inquiries. 【Features】 ■ Low reflection transmission of 50Ω to 75Ω usable over a wide frequency range ■ Three types available: resistive, transformer, and microstrip line ■ Usable according to application *For more details, please refer to the product information or feel free to contact us.

• Converters and Transducers

The "High-Frequency Low-Pass Filter" is a filter that allows the lower frequency band to pass while cutting off the upper frequency band. It removes spurious components from wireless devices and can be used for measurement and device implementation. The applicable frequency range is from 30 to 8000 MHz, making it suitable for various applications. We can also provide custom filters tailored to your specifications, so please contact our sales office for inquiries. 【Features】 ■ Allows the lower frequency band to pass while cutting off the upper frequency band ■ Removes spurious components from wireless devices ■ Usable for measurement and device implementation ■ Applicable frequency range from 30 to 8000 MHz available ■ Custom filters can also be provided according to your specifications *For more details, please refer to the product information or feel free to contact us.

• filter

The "SNS Series" is a pin diode switch used for switching high-frequency signals in the UHF to SHF range. With MIC technology, it is even smaller and lighter than conventional products. Low loss and high isolation can be achieved up to high-frequency ranges. 【Features】 ■ Pin diode switch used for switching high-frequency signals in the UHF to SHF range ■ Designed to be easy to handle, compact, and lightweight ■ Low loss and high isolation can be achieved up to high-frequency ranges *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

We would like to introduce the 'UPD-3000, 4001, 4000-NW/UDC/SDC' that we handle. The "UPD-3000 series" is a compact and lightweight coaxial 3dB coupler with SMA connectors. Due to its high isolation, it is suitable for the synthesis and distribution of high-frequency signals. In addition, we also offer the low-loss "UPD-4001 series," which has reduced insertion loss compared to conventional models, the "UPD-4000-NW series," which allows for high-power distribution and synthesis, and the "UDC/SDC series," which features a stripline structure with octave bandwidth. 【Features】 ■UPD-3000 series - Compact and lightweight coaxial 3dB coupler with SMA connectors - Six types available for frequencies of 400MHz, 800MHz, 1500MHz, 2000MHz, 5000MHz, and 7000MHz - Outputs have a 90-degree phase difference - Suitable for the synthesis and distribution of high-frequency signals due to high isolation *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

We would like to introduce our "UDT/VDR/UDR/SDR series" products. The "UDT series" is a transformer-type splitter with low distribution loss. It can be used in the frequency range of 40 to 900 MHz. The "VDR, UDR, and SDR series" are resistive splitters. They can be used in the frequency ranges of DC to 250 MHz (VDR type), DC to 800 MHz (UDR type), and DC to 3000 MHz (SDR type). We offer splitters ranging from 2 to 4 outputs. 【Features】 ■ UDT Series - Transformer-type splitter with low distribution loss - Usable in the frequency range of 40 to 900 MHz ■ VDR, UDR, SDR Series - Resistive splitters - Splitters available from 2 to 4 outputs *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

We would like to introduce the "CT/UT/ST series" handled by our registration. The "CT series" can be used in the frequency range of DC to 1100MHz with a permissible power of 1 to 500W, while the "UT series" can be used in the frequency range of DC to 3000MHz (UT01 can be used from DC to 4000MHz) with a permissible power of 1 to 150W. Additionally, the "ST series" can be used in the frequency range of DC to 18GHz. 【Features】 ■ CT Series: Usable in the frequency range of DC to 1100MHz with a permissible power of 1 to 500W ■ UT Series: Usable in the frequency range of DC to 3000MHz with a permissible power of 1 to 150W ■ ST Series: Usable in the frequency range of DC to 18GHz *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The "UBA・SBA Series" is a push-button type variable attenuator. The "UBA-C/CP Series" and "UBA-D Series" are designed to be compact and lightweight, and they use newly developed gold contacts, which provide excellent environmental resistance against corrosion and other factors. The "SBA Series" is also designed to be compact and lightweight like the "UBA Series," and by expanding the frequency range, it can be widely used for applications such as WiMAX and LTE-Advance. 【Features of UBA-C/CP Series and UBA-D Series】 ■ Frequency Range: DC to 2000MHz (UBA-C/CP type), DC to 2700MHz (UBA-D type) ■ Designed to be compact and lightweight ■ Uses newly developed gold contacts ■ Excellent environmental resistance against corrosion and other factors *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The "CFA/UFA/SFA series" is a coaxial fixed attenuator designed and manufactured for general electronic equipment's universal and standard applications. We offer a lineup including the "CFA series" with a frequency range of DC to 1GHz, the "UFA series" from DC to 3GHz, and the "SFA series" from DC to 18GHz. A variety of standard products are available, allowing you to choose according to your intended use. 【Features】 ■ Designed and manufactured for general electronic equipment's universal and standard applications ■ A variety of standard products available ■ You can choose according to your intended use *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The "Local Integrated 12GHz Band Downconverter" is a super compact downconverter that converts X-band frequencies to IF band. By incorporating a high-performance oscillator, it achieves ultra-low phase noise. It also has a built-in small filter, resulting in low spurious emissions. Additionally, it is possible to manufacture a module that integrates filters for LO removal, ATT for level adjustment, and ATT for temperature compensation. We can also accommodate other frequencies, so please contact us for details. 【Features】 ■ Local integrated type that converts X-band frequencies to IF band ■ Achieves ultra-low phase noise by incorporating a high-performance oscillator ■ Low spurious emissions due to the built-in small filter *For more details, please refer to the product information or feel free to contact us.

• converter

The TSG-332 is a synthesizer developed as a LOCAL signal source for broadcasting microwave wireless communication devices. It has a proven track record of being adopted as a local signal source for various devices with low phase noise. Regarding other frequencies, it can accommodate any frequency from 100MHz to 15GHz, so please contact us for details. 【Features】 ■ Developed as a LOCAL signal source for broadcasting microwave wireless communication devices ■ Proven track record of being adopted as a local signal source for various devices with low phase noise ■ Capable of accommodating any frequency from 100MHz to 15GHz ■ Performance guaranteed temperature range: -10 to +55℃ ■ Operating temperature range: -20 to +65℃ *For more details, please refer to the product information or feel free to contact us.

• Ultrasonic Oscillator

This product is an SDR module designed for the rapid construction of various RF systems. It is equipped with a high-performance RF-IC at the front end, supporting a wide frequency range and bandwidth, and includes an FPGA with an integrated ARM (CPU) that allows for a wide range of capabilities, from high-speed communication processing using hard logic to complex processing using the ARM (CPU). By adopting PCIE, USB 3.0, and Ethernet for the interface, it enables reliable high-speed communication with a PC. 【Features】 ■ Wide frequency range from 70MHz to 6GHz, supporting a wide bandwidth of signal bandwidths from 200kHz to 200MHz ■ Equipped with an FPGA with an integrated ARM (CPU) ■ Interfaces include PCIE, USB 3.0, and Ethernet ■ Enables reliable high-speed communication with a PC *For more details, please refer to the product information or feel free to contact us.

• Other electronic parts

The TCV-280 series is capable of incorporating circuits that include high-frequency front ends that cannot be implemented in standard FMC packages. It is suitable for applications that analyze various high-frequency signal data while reducing the impact of digital noise. The bandwidth supports up to 200MHz at fs=1G, and custom solutions tailored to customer specifications, such as filters, are available. Additionally, standard analysis software (TamaScope) is also provided.

• converter

The RF signal transmitted through light is converted from optical to electrical at the transmitter and outputted. The optical/electrical conversion section employs a high-output type photodiode, capable of outputting over -10 dBm. The transmitter is electrically insulated and can be used as a signal source for antenna evaluation, making it ideal for EMC measurements, antenna measurements, and floating measurements.

• EMC Testing

This device can accommodate up to 8 modules of E/O converters (EOC-173-1) and O/E converters (OEC-1070-1) in a 19-inch/1U rack-mounted body, allowing for input of analog RF signals in the frequency range of 100MHz to 3600MHz. Its slim design makes it ideal for systems that require the transmission of multiple antenna signals, as it can support up to 8 channels in a single device for multi-channel signal transmission.

• converter

This device is a broadband optical converter unit that supports an analog RF signal frequency range of 700 MHz to 10 GHz. It can accommodate up to 4 units in a 3U size of a 19-inch rack (EIA standard). Each module is designed to be inserted and removed from the front in a slot format, allowing for flexible configuration changes such as adding or removing modules.

• converter

The EOC-1003/OEC-1073 optical isolator converter is an optical isolation link. The analog RF frequency range covers from 1kHz to 75MHz, and the input and output are isolated through high isolation optical fiber transmission. Environmental noise resistance is improved by optical fiber transmission, which reduces the impact of external noise compared to coaxial cables. Regarding floating measurements, it is possible to perform floating measurements by connecting a battery.

• converter

The wavelength-multiplexed optical converters OAL-146JB/OAL-147JB can share signals over a single-mode fiber. They are equipped with a WDM coupler. The input and output cover an analog RF signal bandwidth of 70 to 200 MHz, allowing them to be connected to the transmitting and receiving ends of wireless devices for long-distance transmission as optical repeaters. They can be used as optical RoF for indoor base station wireless relay equipment.

• converter

The outdoor EOC-154, equipped with waterproof functionality IP65, allows for easy optical transmission setup when constructing outdoor audio communication networks for public broadcasting and other applications. (Note) The O/E converter (OEC-1050) is not waterproof.

• converter

RF input frequency range: It covers a wide band from 10 to 3000 MHz and has excellent C/N characteristics. To stabilize the optical output, it uses a laser diode with an integrated Peltier cooler, making it compact and lightweight. By using an optional AC adapter, it can be powered by AC 100V.

• converter

The high-frequency amplifier (TAM series) is an amplifier that spans low noise amplification to medium output power amplification at specific frequencies within the frequency range of 100 MHz to 15 GHz. It can be used as an evaluation amplifier for mobile communications and SHF microwave communications, as well as a transmission and reception amplifier in communication equipment.

• Amplifier

This is a local integrated ultra-compact downconverter that converts X-band frequencies to IF band. By incorporating a high-performance oscillator, it achieves ultra-low phase noise. It has a built-in compact filter, resulting in low spurious emissions. Additionally, it is possible to manufacture integrated modules for LO removal filters, level adjustment ATT, temperature compensation ATT, and more. We can also accommodate other frequencies, so please contact us for details.

• converter

The high-frequency amplifier (TAM series) is an amplifier that spans low noise amplification to medium output power amplification at specific frequencies within the frequency range of 100 MHz to 15 GHz. It can be used as an evaluation amplifier for mobile communications and SHF microwave communications, as well as a transmission and reception amplifier in communication equipment.

• Amplifier

This column introduces multifunctional modules (RF front ends). In beamforming technology used in 5G communications and active phased array technology used in various radar systems, multiple antenna elements are arranged to perform electronic beam scanning through phase control, necessitating the need for multi-system integrated transmit and receive active modules. Tamagawa Electronics has developed multifunctional frequency conversion modules by leveraging the high-frequency technology and digital technology cultivated over many years, providing products tailored to various needs. [Contents] ■ Introduction ■ Components that make up the RF front end ■ Support for multi-system integration modules ■ Conclusion *Detailed content of the column can be viewed through the related links. For more information, please feel free to contact us.

• Other electronic parts

This column introduces the development of millimeter-wave and terahertz technology. In recent years, the acceleration and increase in capacity of communications have progressed. Meanwhile, the ITU-R and the Radio Law have allocated the use of radio waves up to 275 GHz. However, due to the depletion of frequencies, research and development related to communications has been initiated in national projects and research institutions such as universities in Japan and Europe for the use of frequencies beyond this range. We encourage you to read it. [Contents] ■ Introduction ■ Millimeter-wave technology ■ A brief introduction to our products ■ Conclusion *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Communications

The high-frequency technology and optical transmission technology cultivated over many years by Tamagawa Electronics Co., Ltd. are applied to the high-frequency circuits of the linear accelerators in large synchrotron radiation facilities. Electron accelerators accelerate electrons and positrons to speeds close to the speed of light, achieving high-energy states. When electrons or positrons are bent by a magnetic field, the electromagnetic waves emitted in the direction of their travel are referred to as synchrotron radiation. In this column, we introduce the representative main performance of accelerators, high-frequency technology, and the LLRF (Low-Level Radio Frequency) equipment for synchrotron radiation. We encourage you to read it. [Contents] ■ Introduction ■ Accelerators and High-Frequency Technology ■ High-Frequency Precision Unmatched by Radios ■ Conclusion *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Other electronic parts

This column introduces a DC-pass type attenuator for LPWA that can be installed outdoors and features a DC-pass circuit. The DC input current can handle up to 0.5A, and the DC input voltage can support up to 15Vdc. The frequency range is compatible from 700MHz to 2000MHz, allowing for a wide range of applications. Additionally, it complies with waterproof rating IPX65, meaning it will not be damaged even when directly exposed to water jets from various directions. Please take a moment to read it. 【Contents】 ■ Product Overview ■ Applications ■ Electrical Characteristics Data ■ Installation Image *Detailed content of the column can be viewed through the related links. For more information, please feel free to contact us.

• Other electronic parts

Tamagawa Electronics has developed analog optical transmission devices since the second-generation mobile PDC era as a countermeasure against insensitivity, responding to customer needs. In this column, we introduce the analog RoF technology cultivated by our company over many years. RoF stands for Radio over Fiber, which refers to optical fiber wireless. We convert [electricity to light] using an E/O converter, transmit it via optical fiber, and then convert [light to electricity] using an O/E converter to demodulate the electrical signal. We invite you to read on. [Contents] ■ Introduction ■ Advantages of Analog Optical Transmission ■ High-Reliability Optical Transmission Devices ■ EOC-144/OEC-1041 Counterpart Performance ■ Future Plans *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Communications

Our company takes pride in being one of the leading expert firms in microwave technology in Japan, but on the other hand, we have recently begun to focus on digital technology in line with the trends of the times. In this column, we introduce a simple example of our efforts in "software-based digital circuit development (high-level synthesis)" aimed at improving productivity and maintainability in the development of digital devices, as well as addressing labor shortages. We invite you to read it. [Contents (partial)] ■ Introduction ■ Simple Digital PLL ■ Software Development Environment and Implementation Targets ■ Specifications and System Diagram ■ Simple Loop Design *For more detailed content of the column, please refer to the related links. For further inquiries, feel free to contact us.

• Software (middle, driver, security, etc.)
• Other embedded systems (software and hardware)

This column introduces single-chip wideband synthesizers. Starting with the "VCO-integrated microwave wideband synthesizer simple block," it explains various applications of wideband synthesizers, such as "simple spectrum analyzers" and "direct conversion circuits," with diagrams. In recent years, wideband synthesizers that cover up to the submillimeter wave band have been released by semiconductor manufacturers, allowing for smaller board mounting areas and simpler implementations. We encourage you to read it. [Contents] ■ Application examples ■ Phase noise *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Other electronic parts

This column introduces tunable filters. A tunable filter is a type of filter that can change its frequency characteristics, as the name suggests. In communication systems, it becomes necessary when the frequency band of the radio waves used is broad, and conventional fixed-frequency filters cannot accommodate it. Our company has developed and commercialized numerous tunable filters. In this article, we will introduce a newly developed filter and its technology. Please take a moment to read it. [Contents] ■ Introduction ■ Design of Tunable Filters ■ Developed Tunable Filters *For more details on the column, please refer to the related links. Feel free to contact us for more information.

• filter
• Other filters

In this column, we introduce SDR, which we are also developing at our company. SDR stands for Software Defined Radio, which translates to software radio. In simple terms, it is a radio device that can change its functions through software. We provide detailed explanations on topics such as "What is SDR?", "What is the structure of SDR?", and "What types of SDR are there?" We encourage you to read it. 【Contents】 ■ Introduction ■ What is SDR? ■ What is the structure of SDR? ■ What types of SDR are there? ■ A brief product introduction *For more details on the column, you can view it through the related links. Please feel free to contact us for more information.

• Communications