Decade bandwidth resistive FET singly balanced MIC mixer

Chi-Yang Chang*, Chu Chen Yang, Dow Chih Niu

*Corresponding author for this work

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

A novel decade bandwidth resistive FET singly balanced MIC mixer using a broadband CPW to CPS balun is developed. The mixer uses two NEC71000 MESFETs and realized with uniplanar lines. At 17 dBm LO power and 1 GHz IF, the mixer shows a conversion loss of 5.7 to 11 dB for 2 to 20 GHz RF and 10 to 15 dB for 20 to 27 GHz RF. The IF bandwidth is from 10 MHz to 7 GHz. The signal orthogonality between RF and IF makes the IF signal may overlap the RF signal. The mixer shows an output P1dB of 11.5 dBm (corresponding to input P1dB of 18.5 dBm) at 8 GHz RF, 1 GHz IF and 16.5 dBm LO power. The input IP3 is 24 to 37 dBm corresponding to 2.5 to 20 GHz RF and 1 GHz IF. The mixer is fabricated on a 15 mil thick Al2O3 MIC substrate.

Original languageEnglish
Pages (from-to)311-314
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
Volume1
DOIs
StatePublished - 1 Dec 1999
EventProceedings of the 1999 IEEE MTT-S International Microwave Symposium Digest 'The Magic Touch of Microwaves' - Anaheim, CA, USA
Duration: 13 Jun 199919 Jun 1999

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