A CPW-fed rectangular ring monopole antenna for WLAN applications

Sangjin Jo, Hyunjin Choi, Beomsoo Shin, Sangyeol Oh, Jaehoon Lee

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


We present a simple coplanar waveguide- (CPW-) fed rectangular ring monopole antenna designed for dual-band wireless local area network (WLAN) applications. The antenna is based on a simple structure composed of a CPW feed line and a rectangular ring. Dual-band WLAN operation can be achieved by controlling the distance between the rectangular ring and the ground plane of the CPW feed line, as well as the horizontal vertical lengths of the rectangular ring. Simulated and measured data show that the antenna has a compact size of 21.4 × 59.4 mm2, an impedance bandwidths of 2.21-2.70 GHz and 5.04-6.03 GHz, and a reflection coefficient of less than -10 dB. The antenna also exhibits an almost omnidirectional radiation pattern. This simple compact antenna with favorable frequency characteristics therefore is attractive for applications in dual-band WLAN.

Original languageEnglish
Article number951968
JournalInternational Journal of Antennas and Propagation
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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