Low-profile resonant cavity antenna based on an in-phase metamaterial surface

Yuehe Ge*, Karu P. Esselle

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A partially reflective metamaterial surface is designed to have in-phase reflection property for the purpose of reducing the height of resonant cavity antennas. Since the reflection phase of the in-phase is close to 0° at the operating band, the cavity height, that is, the distance between the metamaterial surface and the PEC ground, can be reduced from half wavelength to about a quarter wavelength, without using an artificial magnetic conductor as the ground. An example antenna is designed, fabricated, and measured to demonstrate the concept.

Original languageEnglish
Pages (from-to)731-733
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number3
Publication statusPublished - Mar 2009

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