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Conference Paper A Ka-Band 4-Channel CMOS Beamforming Front-End IC with Built-in Linearizer for Data Relay Satellite System
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Authors
Seong-Mo Moon, Junhan Lim, Wonseob Lee, Euijin Oh, Dongpil Chang, Jinseok Park
Issue Date
2023-10
Citation
International Conference on Information and Communication Technology Convergence (ICTC) 2023, pp.1620-1621
Publisher
IEEE
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/ICTC58733.2023.10393390
Abstract
A Ka-band 4-channel CMOS beamforming front-end IC for data relay satellite system is introduced. A differential 4-way power combiner and differential SPDT switches are used to reduce parasitic ground inductance effect. Also, an active phase shifter with variable gain function is integrated, which reduces both chip size and DC power of the 4-channel beamforming IC. A built-in PA linearizer is integrated, which improves linearity of the PA. The PA has OP1dB of 19.5 dBm, peak PAE of 34%, and AM-PM distortion of less than 1 degree at 27 GHz.
KSP Keywords
AM-PM, Built-in, Dc power, Front-End, Inductance effect, Ka-Band, Power combiner, Relay satellite system, SPDT Switch, active phase shifter, data relay satellite