Grid Oscillators

Zorana B. Popovic, Moonil Kim, David B. Rutledge

Research output: Contribution to journalArticle

17 Citations (Scopus)


Loading a two-dimensional grid with active devices offers a means of combining the power of solid-state oscillators in the microwave and millimeter-wave range. The grid structure allows a large number of negative resistance devices to be combined. This approach is attractive because the active devices do not require an external locking signal, and the combining is done in free space. In addition, the loaded grid is a planar structure amenable to monolithic integration. Measurements on a 25-MESFET grid at 9.7 GHz show power-combining and frequency-locking without an external locking signal, with an ERP of 37 W. Experimental far-field patterns agree with theoretical results obtained using reciprocity.

Original languageEnglish
Pages (from-to)647-654
Number of pages8
JournalInternational Journal of Infrared and Millimeter Waves
Issue number7
Publication statusPublished - 1988 Jul 1
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

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    Popovic, Z. B., Kim, M., & Rutledge, D. B. (1988). Grid Oscillators. International Journal of Infrared and Millimeter Waves, 9(7), 647-654.