Design of a ×4 subharmonic sub-millimeter wave diode mixer, based on an analytic expression for small-signal conversion admittance parameters

Rasmus Schandorph Michaelsen, Tom Keinicke Johansen, Viktor Krozer

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Abstract

Instead of using frequency multipliers before a fundamental mixer, subharmonic mixers can be used. In order to develop novel subharmonic mixer architectures it is necessary to know the exact signal phase at the nonlinear element. The purpose of this paper is to generalize the description of the small-signal admittance in a Schottky-diode mixer where the phase can be set arbitrarily. It is shown that only for the case of a fundamental frequency mixer this admittance becomes a purely real valued conductance. To test the theory a ×4 subharmonic sub-millimeter wave mixer is designed and simulated. With an RF frequency of 640 GHz, this design achieves a conversion gain of −13.5 dB with a LO-power of only −2.5 dBm.
Original languageEnglish
Title of host publication2013 Microwave & Optoelectronics Conference (IMOC)
Number of pages4
PublisherIEEE
Publication date2013
ISBN (Print)978-1-4799-1397-8
DOIs
Publication statusPublished - 2013
EventInternational Microwave and Optoelectronics Conference - Pontifícia Universidade Católica do Rio de Janeiro , Rio de Janeiro, Brazil
Duration: 4 Aug 20137 Aug 2013
http://www.imoc2013.org

Conference

ConferenceInternational Microwave and Optoelectronics Conference
LocationPontifícia Universidade Católica do Rio de Janeiro
CountryBrazil
CityRio de Janeiro
Period04/08/201307/08/2013
Internet address

Keywords

  • Fields, Waves and Electromagnetics
  • Photonics and Electrooptics

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