A planar parabola-feed frequency multiplier

Moonil Kim, Victor M. Lubecke, Suzanne C. Martin, R. Peter Smith, Peter H. Siegel

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A novel quasi-optical all-planar frequency doubler that could provide an alternative approach to conventional waveguide circuits for millimeter- and submillimeter-wave signal generation is presented. The multiplier uses a quad-bridge diode configuration for inherent isolation between the input and output signals. Two pairs of double-slot antennas with orthogonal polarizations directly couple input and output signals to the diodes, without the need for hybrid couplers required in typical balanced circuits. The integrated quad-bridge-diode/slot-antenna circuit is mounted on a dielectric-filled parabola for coupling to quasi-optical propagation systems. Measurement results for an X to K-band doubler show frequency conversion loss of 6.8 dB at the output frequency of 20.3 GHz.

Original languageEnglish
Pages (from-to)60-62
Number of pages3
JournalIEEE Microwave and Guided Wave Letters
Issue number3
Publication statusPublished - 1997 Mar


  • Dielectric-filled parabola
  • Diode frequency multiplier
  • Slot antenna

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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