220-320 GHz Harmonic Mixer for a Full Band Sweep Vector Network Analyzer

Abstract

This paper presents the design and characterization of a fixed tuned 220 - 320 GHz harmonic mixer employing commercial Schottky beam lead diodes in an antiparallel configuration. A diplexer provides distinct ports and matching for the subharmonic LO (26-40GHz) and the IF (20 MHz). The conversion loss was measured using a Gunn + tripler or quadrupler source calibrated with an absolute bolometer. We have built a 220 - 320 GHz full band sweep Vector Network Analyzer (VNA) using two WR3 waveguide couplers and three identical harmonic mixers (transmitter, reference, and receiver) pumped by two synthesizers (13-20GHz) followed by active doublers. The available dynamic range is 60 dBc/Hz over most of the band.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 2000
Accession Number
ADP011752

Entities

People

  • Bernard Lazareff
  • Francois Mattiocco
  • Matthew Carter

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • 5G Wireless Networks
  • Analyzers
  • Beam Leads
  • Circuits
  • Connectors
  • Conversion
  • Diodes
  • Dynamic Range
  • Frequency
  • Impedance
  • Millimeter Waves
  • Networks
  • Oscillators
  • Spectrum Analyzers
  • Transmitters
  • Waveguide Couplers
  • Waveguides

Fields of Study

  • Physics

Readers

  • Electronics Engineering