A 30 GHz single-chip PLL MMIC using 0.5μm enhanced/depletion-mode GaAs pHEMT

Fan Hsiu Huang*, Cheng Kuo Lin, Yu Chi Wang, Yi Jen Chan

*Corresponding author for this work

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

2 Scopus citations

Abstract

A phase-locked loop (PLL) MMIC based on a ring-type injection-locked frequency divider (RILFD) and a cascode-type voltage-controlled oscillator (VCO) has been manufactured by using 0.5 μm enhanced/depletion mode (E/D) GaAs pHEMTs for Ka-band communications. In this circuit, the 15 GHz cascode oscillator including the 2nd harmonic cascode buffer amplifier was designed to generate a 30 GHz output signal. To synchronize the oscillation signal with the input reference signal, the wide locking-range divided-by-four RILFD using injection-locked technique and the cascode mixer to be a phase detector were used with a reference signal of 3.75 GHz. With a RC low-pass filter and a dc amplifier based on the E/D-mode inverter circuit, the loop gain and the output phase noise can be further improved. The measured result of the locking range is about 400 MHz near 30 GHz and the output phase noise is about -116 dBc/Hz at 1 MHz offset under a 2 V dc supply with 80 mW power consumption.

Original languageEnglish
Title of host publication29th Annual IEEE Compound Semiconductor Integrated Circuit Symposium 2007 IEEE CSIC Symposium
Subtitle of host publication"Tastes of the Northwest" - Technical Digest 2007
Pages158-161
Number of pages4
DOIs
StatePublished - 2007
Externally publishedYes
Event29th Annual IEEE Compound Semiconductor Integrated Circuit Symposium 2007 IEEE CSIC Symposium: "Tastes of the Northwest" - Portland, OR, United States
Duration: 14 10 200717 10 2007

Publication series

NameTechnical Digest - IEEE Compound Semiconductor Integrated Circuit Symposium, CSIC
ISSN (Print)1550-8781

Conference

Conference29th Annual IEEE Compound Semiconductor Integrated Circuit Symposium 2007 IEEE CSIC Symposium: "Tastes of the Northwest"
Country/TerritoryUnited States
CityPortland, OR
Period14/10/0717/10/07

Keywords

  • Cascode circuit topology
  • Enhanced/depletion mode GaAs pHEMTs
  • Phase-locked loop

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