40-GHz high-linearity single-voltage-supply pHEMT gilbert sub-harmonic upconverter using leveled-LO topology

Chin-Chun Meng*, Jen Yi Su, Hung Ju Wei, Po Yi Wu, Guo Wei Huang

*Corresponding author for this work

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

2 Scopus citations

Abstract

This paper reports a 40 GHz sub-harmonic Gilbert upconverter with a leveled-LO configuration using 0.15-μm AlGaAs/InGaAs pseudomorphic high electron mobility transistor (PHEMT) technology. The sub-harmonic structure is employed because the LO frequency is only half of the RF frequency. A two-stage RC-CR polyphase filter forms a 20-GHz quadrature generation for the LO port of the upconverter while an LC current combiner at the RF output port performs the balance-to-unbalance transformation and conversion gain enhancement. A self-biases current source is used to achieve single voltage supply. The demonstrated pHEMT sub-harmonic Gilbert upconverter has a conversion gain of -1 dB, an output return loss of -16.5 dB at 40 GHz, LO-to-RF isolation of 47 dB, and 2LO-to-RF isolation of 41 dB. OP1dB and OIP3 are -20 dBm and -5 dBm, respectively. The current consumption is 12.9 mA at a 4 V supply voltage.

Original languageEnglish
Title of host publication2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies, IMWS 2011
Pages21-24
Number of pages4
DOIs
StatePublished - 29 Nov 2011
Event2011 IEEE MTT-S International Microwave Workshop on Millimeter Wave Integration Technologies, IMWS 2011, Collocated with the 2011 IEEE RFID - Technologies and Applications Conference, RFID-TA 2011 - Sitges, Spain
Duration: 15 Sep 201116 Sep 2011

Publication series

Name2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies, IMWS 2011

Conference

Conference2011 IEEE MTT-S International Microwave Workshop on Millimeter Wave Integration Technologies, IMWS 2011, Collocated with the 2011 IEEE RFID - Technologies and Applications Conference, RFID-TA 2011
CountrySpain
CitySitges
Period15/09/1116/09/11

Keywords

  • Gilbert Mixer
  • LC Current Combiner
  • Leveled-LO
  • pHEMT
  • Polyphase Filter
  • Single-Voltage Supply
  • Sub-harmonic Mixer
  • Up converter

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