A 100-Element Planar Schottky Diode Grid Mixer

Jonathan B. Hacker, Robert M. Weikle, Moonil Kim, Michael P. De Lisio, David B. Rutledge

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


In this work we present a Schottky diode grid mixer suitable for mixing or detecting quasi-optical signals. The mixer is a planar bow-tie grid structure periodically loaded with diodes. A simple transmission line model is used to predict the reflection coefficient of the grid to a normally incident plane wave. The grid mixer power handling and dynamic range scales as the number of devices in the grid. A 10 GHz 100-element grid mixer has shown an improvement in dynamic range of 16.3 to 19.8 dB over an equivalent single-diode mixer. The conversion loss and noise figure of the grid are equal to that of a conventional mixer. The quasi-optical coupling of the input signals makes the grid mixer suitable for millimeter-wave and submillimeter-wave applications by eliminating waveguide sidewall losses and machining difficulties. The planar property of the grid potentially allows thousands of devices to be integrated monolithically.

Original languageEnglish
Pages (from-to)557-562
Number of pages6
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number3
Publication statusPublished - 1992 Mar

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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