A 60-GHz 2×2 phased-array transmitter using injection-locked oscillator in 0.18 μm CMOS technology

Fan Hsiu Huang, Chin Cheng Chen, Hong Yeh Chang, Yue Ming Hsin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


A 2×2 phased-array transmitter designed for V-band communications has been implemented by using CMOS 0.18 m process. The circuit is based on a 30-GHz injection-locked oscillator (ILO) without using power amplifier. Combing a frequency doubler (FD) with the differential signal injection can generate a 60-GHz signal and perform a 360° phase shift with a harmonic suppression of 15 dBc. The power consumption of each channel in the transmitter is 65 mW from a 1.8 V supply. The measured output signal exhibits a self-oscillation frequency ranging from about 63.7 GHz to 65.9 GHz with an output power of -11 dBm. The transmitter demonstrates the maximum locking range up to 350 MHz under a fundamental injection. Due to the injection locking technique used in the circuit, the phase noise can be improved to -116 dBc/Hz at 1-MHz offset.

Original languageEnglish
Title of host publication2010 Asia-Pacific Microwave Conference Proceedings, APMC 2010
Number of pages4
StatePublished - 2010
Event2010 Asia-Pacific Microwave Conference, APMC 2010 - Yokohama, Japan
Duration: 7 Dec 201010 Dec 2010

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


Conference2010 Asia-Pacific Microwave Conference, APMC 2010


  • CMOS
  • injection-locked oscillator
  • millimeter-wave
  • phased-array


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