White Paper Release: AsiaSat’s 5G Interference Rejection Bandpass Filter

AsiaSat has released a new White Paper detailing their new product – bandpass filter to be installed on C-band receiving antennas to reject interfering signals from adjacent 5G base stations, its features and performance in the field tests.

Since early 2019, the ground mobile network operators (MNO) have initiated the testing and mass deployment of 5G cellular base stations in China and many other countries around the world.

The spectrum used by 5G macro cells however overlaps with the extended C-band (3.4-3.7 GHz) which has long been used for the satellite communication services. In some countries, the 5G spectrum even partially or entirely overlaps with the standard C-band (3.7-4.2 GHz) which is also used for Fixed Satellite Service (FSS). AsiaSat has a significant C-band user base over the Asia-Pacific region, and these users may suffer from the widespread deployment of the ground 5G systems in the coming years. In response to the potential interferences from 5G deployment and to better service our customers, AsiaSat, with its 30 years of experience in satellite user requirement, has collaborated with experienced vendors and launched new models of microwave bandpass filters (BPF) to mitigate the impact from 5G. The BPF can be installed on C-band receiving antennas to reject interfering signals from the adjacent 5G base stations. This paper describes the features of the BPF and its performance in the field tests.


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