A 3.5 GHz low insertion loss variation CMOS phase shifter

Jeng-Han Tsai, Yu Hui Lin, Chuan Chi Hung

Research output: Contribution to journalArticle

Abstract

A 3.5 GHz low insertion loss variation phase shifter has been designed and fabricated on standard 0.18-μm CMOS process. To achieve over 360° continuously phase tuning range, the phase shifter consists of a switch type phase shifter (STPS) and a reflection type phase shifter (RTPS). The phase-invertible variable attenuator (PIVA) topology which can provide two states with 180° phase-shift while maintaining low amplitude imbalance is adopted. The RTPS provides over 189° continuously phase tuning. The experimental results show that the 3.5 GHz phase shifter demonstrates over 360° continuously phase tuning range with low insertion loss variation of 1 dB at 3.5 GHz. The maximum insertion loss is 13.5 dB at 3.5 GHz and the dc consumption is zero. The chip size is 1.08 mm × 0.82 mm.

Original languageEnglish
Pages (from-to)863-866
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume61
Issue number4
DOIs
Publication statusPublished - 2019 Apr 1

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Phase shifters
Insertion losses
insertion loss
CMOS
tuning
attenuators
Tuning
phase shift
topology
switches
chips
Phase shift
Switches
Topology

Keywords

  • C-band
  • CMOS
  • phase shifter
  • phase-invertible variable attenuator (PIVA)
  • reflection type phase shifter (RTPS)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

A 3.5 GHz low insertion loss variation CMOS phase shifter. / Tsai, Jeng-Han; Lin, Yu Hui; Hung, Chuan Chi.

In: Microwave and Optical Technology Letters, Vol. 61, No. 4, 01.04.2019, p. 863-866.

Research output: Contribution to journalArticle

Tsai, Jeng-Han ; Lin, Yu Hui ; Hung, Chuan Chi. / A 3.5 GHz low insertion loss variation CMOS phase shifter. In: Microwave and Optical Technology Letters. 2019 ; Vol. 61, No. 4. pp. 863-866.
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