Metallic Cavity Excitation for Desired z-Component Electric Field

Chen Firestein, Reuven Shavit

Research output: Contribution to journalArticlepeer-review


The field patterns in a metallic cavity can be described by eigen modes. These electric field modes are obtained by solving the wave equation with perfect electric conductor (PEC) boundary conditions. In this letter, the authors introduce the relation between the electric field coefficients of a desired excitation function and the cavity modes coefficients, which means that for a given field pattern, we find the amplitude of the excitation modes that yield the best approximation of the desired excitation function in the cavity. This relation is done using the excitation matrix. By minimizing the error function, the optimal frequency of operation can be found and so the amplitudes of the excitations. The proposed analysis has been validated using high frequency structure simulator (HFSS) commercial software simulation.

Original languageEnglish
Article number9286870
Pages (from-to)233-236
Number of pages4
JournalIEEE Microwave and Wireless Components Letters
Issue number3
StatePublished - 1 Mar 2021


  • Cavity resonators
  • microwave ovens
  • wireless power transmission

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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