A Wideband True-Time-Delay Phase Shifter with 100% Fractional Bandwidth Using 28 nm CMOS

Minjae Jung, Hong Jib Yoon, Byung Wook Min

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A fully integrated passive true-time-delay (TTD) phase shifter is presented for a wideband phased array antenna using 28-nm CMOS technology. By using a delay-compensation technique, a linear phase characteristic is achieved within a wide frequency range over 8-24 GHz. A combined bridged-tee network (BTN) delay cell is proposed to accomplish the delay compensation with the most significant bit (MSB) at 29.6 ps and the least significant bit (LSB) at 7.4 ps, which are 45° and 180° at 16 GHz, respectively. The measured insertion loss is in the range of 7.8-12 dB with an RMS gain error less than 1.4 dB from 8 GHz to 24 GHz. In addition, the measured RMS TTD phase and delay errors are less than 1.6 ps and 1.5°, respectively, within 8-24 GHz. The chip size of the proposed TTD phase shifter is 0.48 mm2.

Original languageEnglish
Title of host publicationRFIC 2020 - 2020 IEEE Radio Frequency Integrated Circuits Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages59-62
Number of pages4
ISBN (Electronic)9781728168098
DOIs
Publication statusPublished - 2020 Aug
Event2020 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2020 - Virtual, Los Angeles, United States
Duration: 2020 Aug 42020 Aug 6

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
Volume2020-August
ISSN (Print)1529-2517

Conference

Conference2020 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2020
CountryUnited States
CityVirtual, Los Angeles
Period20/8/420/8/6

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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