China’s 6G R&D Enters a New Phase as 6GHz Golden Frequency Band Approved
The Ministry of Industry and Information Technology has officially approved the application from the IMT-2030 (6G) Promotion Group for the use of the 6GHz frequency band in 6G trials. The approved spectrum covers 6425-7125 MHz with a continuous bandwidth of 700 MHz, marking accelerated progress in China’s 6G research and development.
This milestone represents a crucial step forward for communication technologies moving from laboratory research toward commercial deployment. It also sends a clear message that 6G is far more than a simple upgrade of 5G. Instead, it aims to deliver seamless integrated coverage across air, space, land and sea. Under the 3GPP standard framework, satellite communications will be built into the native architecture of 6G, enabling ground and satellite networks to operate as a unified communication system.
As the frequency band enters the phase of pre-commercial verification and large-scale trials, passive RF front-end components have become essential for network deployment. RF isolators/circulators serve as key components in the RF links of base stations and user terminals. They directly affect signal transmit-receive isolation, link transmission loss and overall equipment stability. As core hardware for preventing signal crosstalk and ensuring low latency and high reliability of 6G communications, RF isolators/circulators are also an indispensable foundation for large-scale networking on this frequency band.
With nearly 20 years of experience specializing in the research, development and production of RF isolators and circulators, Kete Microwave perfectly meets the full-scenario demands for 6G trial network construction, macro base station deployment and lightweight terminal development. We have rolled out two types of dedicated circulators: drop-in and microstrip versions. Boasting superior performance of high isolation, low insertion loss, high power handling and compact footprint, our products establish a stable and reliable signal transmission protection system for large-scale 6G networking across all scenarios.
Drop-in Isolator
Part Number: KTDI-702M4
Frequency Range: 6425-7125MHz
Insertion Loss: 0.5dB
Isolation: 20dB
VSWR: 1.25
Forward/Reversed Power: 10W
Temperature Range: -55 ~ +85℃
Microstrip Isolator
Part Number: KTMI-702A5
Frequency Range: 6425-7125MHz
Insertion Loss: 0.5dB
Isolation: 18dB
VSWR: 1.30
Forward/Reversed Power: 10W
Temperature Range: -55 ~ +85℃
The approval of the spectrum for this trial marks that China's 6G industry has officially transitioned from laboratory R&D to large-scale on-site networking and field testing. The independent supply of domestically developed radio frequency components and high-performance devices has become a key driving force for accelerating industrial development.