A 6-Bit CMOS phase shifter for S - Band

Masoud Meghdadi, Mehrdad Azizi, Mehdi Kiani, Ali Medi, Mojtaba Atarodi

Research output: Contribution to journalArticlepeer-review

70 Scopus citations


A 6-bit passive phase shifter for 2.5- to 3.2-GHz frequency band has been designed and implemented in a standard 0.18- μm CMOS technology. A new switched-network topology has been proposed for implementing the 5.625 ° phase shift step. The insertion loss of the circuit is compensated with an on-chip bidirectional amplifier. The measured return losses of the circuit are better than 8 dB with output 1-dB compression point of +9.5 dBm in the transmit mode and noise figure of 7.1 dB in the receive mode. The fabricated phase shifter demonstrates an average rms phase error of less than 2° over the entire operation bandwidth, which makes it suitable for high-precision applications.

Original languageEnglish (US)
Article number5635374
Pages (from-to)3519-3526
Number of pages8
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number12 PART 1
StatePublished - Dec 2010

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'A 6-Bit CMOS phase shifter for S - Band'. Together they form a unique fingerprint.

Cite this