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http://dx.doi.org/10.5515/KJKIEES.2011.22.11.1111

A 60 GHz Bidirectional Active Phase Shifter with 130 nm CMOS Common Gate Amplifier  

Hyun, Ju-Young (Department of Mobile Solution Engineering, Korea University)
Lee, Kook-Joo (Department of Mobile Solution Engineering, Korea University)
Publication Information
Abstract
In this paper, a 60 GHz bidirectional active phase shifter with 130 nm CMOS is presented by replacing CMOS passive switchs in switched-line type phase shifter with Common Gate Amplifier(bidirectional amplifier). Bidirectional active phase shifter is composed of bidirectional amplifier blocks and passive delay line network blocks. The suitable topology of bidirectional amplifier block is CGA(Common Gate Amplifier) topology and matching circuits of input and output are symmetrical due to design same characteristic of it's forward and reverse way. The direction(forward and reverse way) and amplitude of amplification can be controlled by only one bias voltage($V_{DS}$) using combination bias circuit. And passive delay line network blocks are composed of microstrip line. An 1-bit phase shifter is fabricated by Dongbu HiTek 1P8M 130-nm CMOS technology and simulation results present -3 dB average insertion loss and respectively 90 degree and 180 degree phase shift at 60 GHz.
Keywords
Bidirectional Amplifier; Active Phase Shifter; 130 nm CMOS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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