Application of 'Close Measurement' Antenna Coupler: Proposal for 4x4 MIMO FR1+FR2 NR-DC&CC in a Desktop Compact OTA Testing Environment.
Morita Tech's 'Desktop-sized Compact OTA Testing Environment for Close Measurement' The terminal side features a desktop-sized compact OTA testing environment capable of testing: - FR1 + FR2 NR-DC (dual connectivity) - FR1 + FR2 NR-CA (carrier aggregation) On the FR1 side, it can accommodate either 4x4 MIMO FA-706S or 8x8 MIMO FR-906S. On the FR2 side, it can support V/H MIMO FA-629S (28GHz), FA-643S (43GHz), 4x4 MIMO FR-729S (28GHz), FA-743S (43GHz), or multiple linear polarized FA-597S (56-75GHz). For simplified testing, FR1 V/H MIMO + FR2 V/H MIMO can be handled with one FA-862S unit. These components are integrated into a compact shielded box FS-1905 for OTA testing. Feel free to download the PDF or contact us for inquiries. Please check below for more details.
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basic information
The appeal lies in the easy setup that allows for maximum throughput. It eliminates the need for antenna alignment using lasers and the complex installation of antennas in large RF shielded enclosures.
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Detailed information
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"Nearby Measurement" Antenna Coupler A device for transmitting and receiving in close proximity (compact antenna). A product range that covers frequencies from 600MHz to 70GHz. The small antenna couplers with 1, 2, 4, and 8 ports are essential devices for conducting MIMO tests within a compact shielded box. This is an internationally patented product.
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"Measuring nearby" to maximize the performance of the antenna coupler, the "shield box" that fully demonstrates the capabilities of the antenna coupler (although a radio wave absorber is also used, there is almost no influence from the box walls on the measurements). (This product has obtained an international patent as a compact OTA testing environment using an antenna coupler.) - Interconnectivity testing - Beamforming testing (FR2 millimeter wave) - Testing with MU-MIMO, SU-MIMO, and polarized MIMO, etc.
Line up（5）
| Model number | overview |
|---|---|
| FA Antenna Coupler Series | Antenna Coupler Series ・Frequency: 600MHz-70GHz, over 20 models ・Ports: 1, 2, 4, 8 ports, supports polarization MIMO, etc. |
| FS Shield Box Series | FS Shield Box Series ・Size: From A4 size to base station storage size, over 20 types ・Function: Shielded window "Hand-in Shield Box", over 5 types ・RF Ports: Various up to 100GHz ・Interfaces (USB3.0, LAN, power, conduit (for optical fiber), etc.) ・EUT fixtures Custom design for everything from sizes to antenna coupler holding fixtures and interfaces. |
| FC RF Cable Series | FC RF Cable Series ・Low price ・Ultra-thin, flexible RF cables for inside shield boxes ・Various connectors such as SMA, 2.92mm, 1.0mm ・4 coaxial connectors for MIMO testing (bulk connection connector: development product) |
| FPC Level Detector Series | ・FPC-2000 Sub6GHz-28GHz band MAX9ch level detector ・FPC-3000 Sub6GHz-43.5GHz band MAX9ch level detector ・FPC-3370 500MHz-70GHz 3ch level detector |
| FSV Bidirectional Frequency Converter Series | FSV Bidirectional Frequency Converter Series Converters that enable the use of 28GHz band 5G in existing LTE labs. Down-converts 28GHz from terminals/base stations to 3GHz, transmits over 10m, and converts back to 28GHz on the opposite side. Used for handover tests with LTE base stations. ・FSV2000 3GHz-28GHz band bidirectional frequency converter ・FSV3000 3GHz-39GHz band bidirectional frequency converter |
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![[5G] 28GHz band V/H polarization compatible antenna coupler 'FA-729S' for polarization MIMO support in FR2 OTA testing.](https://image.mono.ipros.com/public/catalog/image/01/001/477354/IPROS39036866530415405546.jpeg?w=120&h=170)
Company information
Morita Tech has been an innovation company since its founding, utilizing four solution capabilities: "5G," "EMC," "Shielding," and "High Frequency," to continuously realize products and technologies that solve challenges in various industrial businesses. In recent years, we have developed a "Compact OTA (Over The Air) Testing Environment" equipped with a short-range transmission and reception device called "Antenna Coupler," which has received great acclaim from telecommunications carriers and local 5G operators, and has been widely adopted in their "labs." In local 5G, it is used as a desktop OTA testing environment and interoperability testing system for the development and verification of base stations and terminals utilizing open source. Additionally, our product lineup includes various solutions as applied products for EMC visualization solutions aimed at achieving carbon neutrality (decarbonized society), such as "visualization of secondary batteries, visualization of partial discharge, and visualization of transient noise." We have four core departments and technologies in-house: "Mechanical and Structural Design," "Electrical Design," "Software Development," and "Manufacturing and QA," and we are fully committed to meeting our customers' expectations and demands while building long-term mutual trust relationships with them.