A 27-42-GHz Low Phase Error 5-Bit Passive Phase Shifter in 65-nm CMOS Technology

A 27-42-GHz 5-bit passive switching phase shifter is presented using 65-nm CMOS technology for the fifth generation (5G) applications. In the 180° phase shift bit, a reflection-type-based biphase modulator topology is developed to achieve good phase shifting performance over a wide bandwidth. The me...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 30; no. 9; pp. 1 - 4
Main Authors Tsai, Jeng-Han, Tung, Yi-Lun, Lin, Yu-Hui
Format Journal Article
LanguageEnglish
Published IEEE 01.09.2020
Subjects
CMOS
Ka-band
Measurement uncertainty
millimeter-wave (mm-wave)
Phase measurement
phase shifter
Phase shifters
phased-array
Resistors
Switches
Switching circuits
Topology
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Summary:A 27-42-GHz 5-bit passive switching phase shifter is presented using 65-nm CMOS technology for the fifth generation (5G) applications. In the 180° phase shift bit, a reflection-type-based biphase modulator topology is developed to achieve good phase shifting performance over a wide bandwidth. The measured insertion loss (IL) of all 32 states is 12.4 ± 1.2 dB at 39 GHz and 11.4 ± 2.3 dB at 28 GHz with zero dc power. The phase shifter demonstrates an ultralow root mean square (rms) phase error of 0.7° and a low rms amplitude error of 0.8 dB at 37 GHz with an inherent digital phase-control mechanism. The rms phase error is less than 3.8° and the rms amplitude error is less than 2.1 dB from 27 to 42 GHz.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2020.3012459