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Domestic RF manufacturers launch 5G millimeter wave filters, breaking the market gap
[ Instrument R & D of Instrument Network ] On April 10th, recently, Anhui Yunta Electronic Technology Co., Ltd. (hereinafter referred to as "Yunta Technology") and the University of Science and Technology of China University of Science and Technology officially released its self-developed 5G millimeter wave filter Device. This is the first time that a Chinese manufacturer has successfully developed such a miniaturized filter product in the 5G millimeter wave (mmWave) frequency band, with a size of only 2.5 × 2.0mm. This type of filter works at 33GHz, with a bandwidth of up to 2GHz, an in-band insertion loss of less than 2.7dB, and an out-of-band rejection of more than 30dB.
It is reported that Yunta's miniaturized 5G millimeter wave filter products can not only be widely used in various 5G terminals and base stations, but also provide a cost-effective filtering solution for the next generation of 6G low-orbit broadband satellite Internet. Yunta Technology The launch of millimeter wave filter products represents that the domestic technologically superior manufacturers have officially deployed in this field.
It is understood that at present, the global miniature filter solution working in the millimeter wave band is almost blank, and it is a technology that countries in the world need to break through in the core field of wireless communication. Among the RF front-end components, filters account for approximately 50% (SAW accounts for 35% and BAW accounts for 15%), power amplifiers account for approximately 30%, and switches and low noise amplifiers account for approximately 20%. The RF front-end chip represented by the filter has always been a typical "card neck" technology in China. The market supply basically relies on several giant companies in the United States and Japan, mainly occupied by foreign companies such as Broadcom, Skyworks, Qorvo, etc., while China's RF chip Manufacturers are still in their infancy, with limited market say, and their output cannot meet market demand.
Yunta Technology, as one of the few start-up companies in the country with RF filters and RF modules as the product direction, has concentrated on research and development in less than 3 years since its establishment, and has finalized more than ten filter products, which will be launched one after another. Especially in the fields of SPD, LTCC, SAW and BAW, it has a technical reserve, and has become a domestic company with a full range of filter research and development, production and supply capabilities.
The 5G frequency band is mainly divided into two categories: Sub-6GHz and millimeter wave (mmWave). Among them, the Sub-6GHz frequency band is the focus of development at this stage. Yunta Technology has officially released its Sub-6GHz (n77, n78) in November 2019. , N79) band filter products, this Sub-6GHz filter product uses its unique ultra-high performance integrated passive device (SPD) technology, compared with LTCC has more precise process control and consistency, higher Capacitance density and smaller and thinner size. The miniaturized 5G millimeter wave band developed this time with its ultra-high transmission rate, ultra-large capacity and extremely low delay will become the core direction of the next stage of 5G development.
At present, Yunta Technology has successfully launched two types of filter products, Sub-6GHz and millimeter wave. At the stage of explosive growth of 5G terminal products, Yunta Technology's filter products are expected to break the absolute monopoly of international giants.