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A 6-Bit CMOS phase shifter for S - Band

Meghdadi, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/TMTT.2010.2086310
  3. Abstract:
  4. 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
  5. Keywords:
  6. Impedance matching ; Phase shifter ; Phase-array system ; Rms phase error ; 1dB compression point ; Array systems ; Bidirectional amplifiers ; CMOS switch ; CMOS technology ; High-precision ; Impedance matchings ; Network topology ; On chips ; Operation bandwidth ; Passive phase ; Phase error ; Receive mode ; Return loss ; Transmit-mode ; Amplifiers (electronic) ; CMOS integrated circuits ; Electric network topology ; Frequency bands ; Impedance matching (electric) ; Phase shifters ; Semiconductor switches ; Switching circuits ; Phase shift
  7. Source: IEEE Transactions on Microwave Theory and Techniques ; Volume 58, Issue 12 PART 1 , 2010 , Pages 3519-3526 ; 00189480 (ISSN)
  8. URL: http://ieeexplore.ieee.org/document/5635374