アンテナ技研 List of Products and Services

We would like to introduce a case where we developed an "antenna for an asteroid exploration rover." As background, there was a request for the development of an antenna to be used for communication between the "asteroid exploration rover" and the Hayabusa2 spacecraft. As a solution, we selected substrate materials that meet environmental conditions and aimed to minimize thickness, height, and weight to reduce the impact of vibration during launch, while also enabling placement in the gaps between solar panels. [Development Overview (Partial)] ■ Challenges - Shape and material that meet the specific conditions of the rover - Resistance to space environment ■ Achievements - Coverage of -5 dBi or more in frequency characteristics and polarization at ±90 degrees or more *For more details, please refer to the related links or feel free to contact us.

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We would like to introduce a case where we developed an "ultra-small satellite-mounted antenna." We received a request to develop an ultra-small antenna for use in a 6U-sized CubeSat, with the background of wanting to further miniaturize the X-band antenna developed for the small satellites "Hodoyoshi" and "Procyon" to be mounted on a 6U-sized ultra-small satellite. As a solution, for the X-band antenna, we innovated the shape and structure of the antenna itself to control directivity and gain, while for the Ka-band antenna, we incorporated material selection and structural innovations to balance strength and electrical performance. [Development Overview (Partial)] ■ Challenges - Directivity tailored to communication forms - Miniaturization and weight reduction ■ Achievements - The X-band antenna achieved a weight of less than 15g, and the Ka-band antenna achieved a weight of less than 35g - The gain of the Ka-band antenna exceeded the target, reaching 16.3dBi *For more details, please refer to the related links or feel free to contact us.

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We would like to introduce a case where we developed a "Portable ARC." As background, radars mounted on satellites and aircraft require adjustments using ARC, and since satellites and aircraft do not remain in a fixed location, there was a demand for a portable ARC that allows for easy movement and high flexibility in radar adjustments. As a solution, we enabled transportation by dividing the system into antenna, electronic equipment, control, and digital receiver components, making it possible to transport with a small truck. [Development Overview (Partial)] ■Challenges - Transportable by a small truck - Easy assembly and disassembly by a few people ■Results - The number of people required for assembly and disassembly of the device is 4, with an assembly time of about 60 minutes and a disassembly time of about 40 minutes. *For more details, please refer to the related links or feel free to contact us.

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We would like to introduce a case where we developed a "multi-band antenna." In the frequency range of 300 MHz to 6 GHz, we aimed to divide it into 5 bands as needed, achieving vertical polarization with omnidirectionality in the horizontal plane and a VSWR of less than 3.5 for each band. As a solution, we used a shortened dipole antenna element for the low-frequency band and a biconical antenna element for the high-frequency band, creating a central-fed hybrid configuration that allows for a single shared input terminal. [Development Overview (Partial)] ■ Challenges - Shared with a single input terminal - Wideband element ■ Results - The antenna, with a cover, achieved a diameter of φ60mm × 300mm and a weight of less than 1 kg. *For more details, please refer to the related links or feel free to contact us.

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We would like to introduce a case where we developed a "small satellite-mounted antenna." We were consulted on the development of a small, lightweight medium-gain antenna and a low-elevation directional antenna for use in the X-band. The medium-gain antenna, which is used for high-speed data communication, requires high gain and wideband characteristics. As a solution, the medium-gain antenna was designed as a 4-element patch array to achieve miniaturization and lightweight. The low-elevation antenna was structured as a helical antenna to suppress zenith gain and shape the beam to peak in the 30° elevation direction. [Development Overview (Partial)] ■ Consultation Details - Development of a small, lightweight medium-gain antenna and a low-elevation directional antenna ■ Challenges - Durability against vibration, shock, temperature, and radiation - Miniaturization and lightweight design *For more details, please refer to the related links or feel free to contact us.

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