A new CMOS all-pass phase shifter for phased array systems

Ali Mohammadi, Ahmad Ayatollahi, Adib Abrishamifar

Research output: Contribution to journalArticlepeer-review

4 Citations (SciVal)


A new tunable all-pass phase shifter architecture based on current mirror, with low complexity and power consumption is proposed in 0.18um CMOS, after a brief introduction on phase shifter applications. In the new current-mode approach the cut-off frequency of transistor is the operational limit of the proposed phase-shifter architecture and power consumption for this design is 80 microwatts. Simulations are carried out in HSpice and cover a frequency range from 1MHz to about 50GHz.

Original languageEnglish
Pages (from-to)504-510
Number of pages7
JournalIEICE Electronics Express
Issue number8
Publication statusPublished - 25 Apr 2009


  • All-Pass
  • CMOS
  • Phase shifter

ASJC Scopus subject areas

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


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