Micromachined microstrip patch antenna with controlled mutual coupling and surface waves

Jong Gwan Yook, Linda P.B. Katehi

Research output: Contribution to journalArticle

68 Citations (Scopus)


In this paper, silicon micromachining has been used to demonstrate the possibility of building high performance microwave and millimeter-wave antennas. To suppress higher order substrate modes and increase the bandwidth of a patch antenna, silicon substrate has been used and material has been selectively removed under the patch area. In addition, the effect of etched grooves around a patch element has been studied for performance improvements. It has been shown that micromachined substrate structure can effectively suppress unwanted surface wave modes resulting in improved radiation efficiency. Moreover, effective dielectric constant curves for the shielded micromachined substrates are provided for accurate design of patch antennas. We have demonstrated that mutual coupling between the radiating patch elements due to surface waves can be controlled using various micromachined substrate configurations.

Original languageEnglish
Pages (from-to)1282-1289
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number9
Publication statusPublished - 2001 Sep 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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