We have prepared "presentation materials" that propose detailed OTA testing methods. Please feel free to download the presentation materials, catalogs, etc.
Various wireless devices, such as 5G, are shifting from traditional coaxial cable connection testing methods to OTA (Over The Air) testing. - Space-saving OTA testing - OTA testing on the manufacturing line - Testing various frequencies in a single shielded box, such as 700MHz, 3.7GHz, 4.5GHz, and 28GHz - Conducting "interoperability testing" with multiple vendors - Performing handover testing - Conducting carrier aggregation testing - Performing MIMO testing with 4x4 or more Antenna couplers and their application products (compact OTA testing environments) are solving these challenges.
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basic information
The "near-field measurement" antenna coupler is a near-distance transmission and reception device developed by Morita Tech, which has obtained international patents. - It can be installed in close proximity to the object being measured (wireless terminal). - It features a flat frequency characteristic (S21/S11) across a wide bandwidth. - The antenna coupler can be installed near the device. - OTA testing can be conducted within a small shielded box, eliminating the need for large facilities like a large anechoic chamber using horn antennas or pyramid-shaped wave absorbers. - The "OTA testing environment" using the antenna coupler has also obtained international patents. - In 5G, it can operate LTE, Sub6GHz, and millimeter wave (28GHz) in a single OTA environment (shielded box). - MU-MIMO (Multi-User MIMO) testing can also be conducted in a single OTA environment. - Interconnectivity tests and other evaluations can be performed in a compact environment (for telecommunications carriers).
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Applications/Examples of results
International patent "Measuring Nearby" antenna coupler applied products A "compact OTA testing environment" using the antenna coupler has also been patented. For telecommunications carriers and local 5G operators: - Interconnectivity testing - Maximum throughput - MIMO - Handover - Carrier aggregation For equipment manufacturers: - Manual/automatic testing environment (shielded box) for manufacturing lines - Combination with measurement instrument switching box For software development manufacturers: - Tuning - Software modifications - Desktop OTA testing environment It is utilized in various scenarios.
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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.