Low RMS phase error 28 GHz 5‐bit switch type phase shifter for 5G applications | Zendy

Tsai J.H. | Zendy; Lin F.M. | Zendy; Xiao H. | Zendy

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Low RMS phase error 28 GHz 5‐bit switch type phase shifter for 5G applications

Author(s) -

Tsai J.H.,

Lin F.M.,

Xiao H.

Publication year - 2018

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2018.6383

Subject(s) - phase shift module , phase (matter) , bit (key) , electronic engineering , 4 bit , bit error rate , phase control , computer science , electrical engineering , physics , telecommunications , engineering , cmos , computer network , decoding methods , quantum mechanics

A 28 GHz 5‐bit switch‐type phase shifter (STPS) using 0.18 μm CMOS technology is presented for 5G mobile communication applications. Utilising a process variation insensitive transmission line‐based bridged T‐type topology for 11.25°, 22.5°, 45°, 90° 1‐bit phase shifters and high‐pass/low‐pass network switched‐path‐type topology for 180° 1‐bit phase shifter, the 5‐bit STPS achieves ultra‐low root mean square (RMS) phase error of 1.7° and low RMS amplitude error of 0.59 dB at 28 GHz with intrinsic digital phase‐control mechanism. The measured insertion loss of all 32 states is 15 ± 1.5 dB at 28 GHz with zero dc consumption.

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