Logo image
Back
Low Insertion Loss and High Isolation Gap Waveguide Diplexer for Ka-Band Satellite Communication Links
Conference proceeding

Low Insertion Loss and High Isolation Gap Waveguide Diplexer for Ka-Band Satellite Communication Links

Rixiong Huang, Yongle Wu, Juqing Ran, Liangbo Wu, Fanyi Meng and Weimin Wang
International Conference on Microwave and Millimeter Wave Technology proceedings, Vol.1(2024), pp.1-3
16/05/2024
DOI: https://doi.org/10.1109/ICMMT61774.2024.10671786

Abstract

Chebyshev approximation Chebyshev filter coupling matrix (CM) Couplings diplexer Filters Gap waveguide gap waveguide (GW) Insertion loss Ka-band Loss measurement satellite communication links Transmission line matrix methods
A gap waveguide (GW) diplexer is proposed with low insertion loss (IL) and high isolation for Ka-band satellite communication links. Firstly, seventh-order Chebyshev filters for the lower and upper bands are designed based on the coupling matrix (CM) and then combined with the designed T-junction for optimization. To validate the idea, a prototype of the proposed diplexer is manufactured and measured. The measured return loss (RL) and IL are better than 13.3 dB/0.76 dB in the lower passband (34 GHz-35 GHz) and 12.1 dB/0.83 dB in the upper passband (36 GHz-37 GHz), and the achieved isolation between the two output channels is better than 60 dB.

Metrics

1 Record Views

Details

Logo image