A 28 GHz Digital-Controlled 4-bit Vector Modulator Based Phase Shifter Design

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Samenvatting

This paper presents a 4-bit digital-controlled active phase shifter implemented in a 0.25μm SiGe:C BiCMOS process for the fifth-generation (5G) communication. It is designed to cover 27.5 GHz to 28.35 GHz spectrum and to achieve balance among power gain, phase accuracy, power consumption and size. The input signal is first divided into two paths by a transformer-based quadrature generator and then weighted summed by a Gilbert typed variable gain amplifier (VGA). Based on the simulation, the proposed phase shifter achieves average 5.4 dB power gain with 17.5mW power consumption, while obtaining less than 1.5 dB rms gain error from 27 to 28.5 GHz. Both input and output reflection coefficients are lower than -10 dB in the whole designed frequency range.

Originele taal-2Engels
Titel2020 IEEE MTT-S International Wireless Symposium, IWS 2020 - Proceedings
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's3
ISBN van elektronische versie9781728167039
DOI's
StatusGepubliceerd - 1 mrt 2021
Evenement2020 IEEE MTT-S International Wireless Symposium, IWS 2020 - Virtual, Shanghai, China
Duur: 20 sep 202023 sep 2020

Congres

Congres2020 IEEE MTT-S International Wireless Symposium, IWS 2020
Land/RegioChina
StadVirtual, Shanghai
Periode20/09/2023/09/20

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