coming! Chinese manufacturer's first 5G millimeter wave (MMWave) micro filter was born

Recently, Hefei High-tech Zone New Economic Development Fund Investment Enterprise Anhui Yunta Electronic Technology Co., Ltd. Joint China University of Science and Technology Microelectronics College, officially issued its own 5G millimeter wave filter. It is understood that this self-developed 5G millimeter wave filter is the first type of miniaturized filter product for Chinese manufacturers to develop successfully at the 5G mmwave band. The product size is only 2.5 × 2.0 mm, which operates in 33GHz, with bandwidth of up to 2GHz, with inner interpolation is less than 2.7dB, and external suppression exceeds 30 dB. Currently, the micro filter solution works in millimeter wave bands worldwide is almost blank, which is a technology in the world of wireless communications in the core of wireless communication. The 5G band is mainly divided into two categories: SUB-6GHz and millimeter wave (mmwave), where the SUB-6GHz band is the focus of the current stage, and Yunta Technology has officially released its SUB-6GHz in November 2019 (N77, N78). , N79) Filter products of the frequency band, while the millimeter wave band is in its ultra-high transmission rate, large capacity and extremely low delay, will become the core direction of 5 g of the next phase of development. The miniaturization millimeter wave filter products of the cloud tower can not only be widely used in a variety of 5G terminals and base stations, but also provide economic effective filtering solutions for the next generation of 6G low-band broadband satellite Internet, such as the US Spacex "Star" "Starlink" plan, China Aerospace Science and Technology Group "Hongyan Constellation", China Aerospace Science and Technology Group's "Hongyun Project", etc. Yunta Technology has launched a millimeter wave filter product, which represents the domestic technical advantage vendor has been officially laid out in this field. Among the respective components of the RF front end, the filter proportional to about 50% (SAW accounts for 15% of Baw), and the power amplifier accounts for about 30%, and the switch and low noise amplifier account for approximately 20%. The radio front end chip represented by the filter has always been a typical "card neck" technology in China, and the market supply is basically relying on several giants in the United States and Japan. In the stage of 5G terminal products, the filter products of Yunta Technology are expected to break the absolute monopoly of international giants.

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