Single-feed square-ring patch antenna with dual-frequency operation

Shing H. Chen, Jeen-Sheen Row, C. Y D Sim

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


The paper presents the design of a dual-frequency patch antenna with different radiation patterns. The antenna structure is composed of a square-ring patch and two shorting walls. Two resonant modes, patch-loaded monopole mode and normal patch mode, can be simultaneously excited in the antenna structure by a coupling strip inide the square-ring patch. Therefore, the antenna can radiate monopole-like and broadside patterns at two operating frequencies, respectively. Several prototypes of the proposed dual-frequency patch antenna with the frequency ratios ranging from 1.18 to 1.73 are constructed, and the obtained experimental results are also shown.

Original languageEnglish
Pages (from-to)991-994
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number4
Publication statusPublished - 2007 Apr 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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