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All-dielectric cavity filter for 5G communication
All-dielectric filters help 5G communications, Internet of Things, and driverless driving. They are small in size and high in power.
Type
Equipment
Tags
Resource utilization
Information & systems
Internet of things
5G communication base station
Design and manufacturing of microwave dielectric ceramics
Driverless system
Highly reliable aerospace communications
Solution maturity
Mass promotion / Mass production
Cooperation methods
Face-to-face consultation
Applicable industry
Information transmission, software and information technology services
Applications
Communication
Key innovations
The all-dielectric cavity filter is only 1/5 of the traditional volume and its power capacity is increased by nearly 10 times. It is the only solution for 5G communication. Its disruptive design and excellent performance demonstrate strong technological innovation.
Potential economic benefits
As a unique solution for 5G communications, this product has huge market potential, with an estimated annual domestic market size of approximately 5 billion yuan. It has small size, high power capacity, obvious technical advantages, and can achieve significant economic benefits. Small batches have been supplied and letters of intent have been signed, with broad prospects for commercialization.
Potential climate benefits
Small size reduces material consumption, low loss improves energy efficiency, and significantly reduces operating power consumption of 5G base stations and other equipment. High reliability extends life, empowers the Internet of Things, and indirectly reduces emissions.
Solution supplier
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Shanghai Institute of Silicate, Chinese Academy of Sciences
Shanghai Institute of Silicate, Chinese Academy of Sciences
The Shanghai Institute of Silicate, Chinese Academy of Sciences, focuses on the research of advanced inorganic materials and supports high-tech industries and major national needs.
Shanghai，China
Solution details

Application areas:

5G communication base stations, Internet of Things, unmanned systems, high-reliability aerospace communications and other products

Technical characteristics:

The all-dielectric cavity filter designed and manufactured with microwave dielectric ceramics is 1/5 of that of traditional metal filters, and its power capacity can be increased nearly 10 times, making it the only solution for 5G communication technology. It is estimated that the annual domestic market size will be about 5 billion yuan, which has extremely huge market potential

Performance indicators:

Material performance indicators: three series of dielectric constants K15, K20, and K30, dielectric loss tgδ ≤ 1.0×10-4 (@4GHz), temperature stability τf≤±5ppm/℃ (-40℃~80℃).

2.6 Device specifications: center frequency (MHz)2515±50, average loss (dB)≤1.5, in-band fluctuation (dB)≤1.2;

3.5 Device specifications: center frequency (MHz)3400±50, average loss (dB)≤0.9, in-band fluctuation (dB)≤1.0.

Current status:

A pilot production line for materials and devices has been built in Jiading Park, with an annual output of 100,000 pieces and has been supplied in small batches. At present, we have signed letters of intent with Shanghai Zhongke Sanhuan and Puyu Electronics in Fuding City, Fujian Province, laying a foundation for further cooperation.

Last updated
02:59:01, Nov 05, 2025
Information contributed by
Green Technology Bank

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