A scalable 6-to-18 GHz concurrent dual-band quad-beam phased-array receiver in CMOS

Sanggeun Jeon, Yu Jiu Wang, Hua Wang, Florian Bohn, Arun Natarajan, Aydin Babakhani, Ali Hajimiri

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)


This paper reports a 6-to-18 GHz integrated phased- array receiver implemented in 130-nm CMOS. The receiver is easily scalable to build a very large-scale phased-array system. It concurrently forms four independent beams at two different frequencies from 6 to 18 GHz. The nominal conversion gain of the receiver ranges from 16 to 24 dB over the entire band while the worst-case cross-band and cross-polarization rejections are achieved 48 dB and 63 dB, respectively. Phase shifting is performed in the LO path by a digital phase rotator with the worst-case RMS phase error and amplitude variation of 0.5̂ and 0.4 dB, respectively, over the entire band. A four-element phased-array receiver system is implemented based on four receiver chips. The measured array patterns agree well with the theoretical ones with a peak-to-null ratio of over 21.5 dB.

Original languageEnglish
Article number4684652
Pages (from-to)2660-2673
Number of pages14
JournalIEEE Journal of Solid-State Circuits
Issue number12
Publication statusPublished - 2008 Dec


  • CMOS
  • Concurrent
  • Large-scale phased arrays
  • Multi-band
  • Multi-beam
  • Phased arrays
  • Scalable
  • Tritave

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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