An improved broadband E patch microstrip antenna for wireless communications
Article first published online: 1 NOV 2007
Copyright 2007 by the American Geophysical Union.
Volume 42, Issue 6, December 2007
How to Cite
2007), An improved broadband E patch microstrip antenna for wireless communications, Radio Sci., 42, RS6001, doi:10.1029/2007RS003643., , , , and (
- Issue published online: 1 NOV 2007
- Article first published online: 1 NOV 2007
- Manuscript Accepted: 3 AUG 2007
- Manuscript Revised: 1 JUL 2007
- Manuscript Received: 13 FEB 2007
- microstrip antenna;
- bandwidth enhancement;
- E patch;
- wireless communications
 A broadband probe-fed microstrip antenna with E-shaped patch on a single-layer air substrate is investigated. Bandwidth enhancement of the antenna is achieved by inserting two parallel slots into its radiating patch. The effects of the antenna parameters are analyzed, and their optimal values for broadband operation are obtained. The design parameters are formulated as a function of the center frequency, and the empirical equations are validated by simulation. A 51.5% enhanced E patch antenna for modern wireless communications (Personal Communications Service, Digital Cellular System, Universal Mobile Telecommunications System, Wireless Local Area Network 802.11 b/g, and Bluetooth) is designed, simulated, fabricated, and measured. A comparison between simulated and measured results is presented, and it showed satisfactory agreement. Moreover, the effect of incorporating more parallel slots into the radiating patch is investigated. The antenna is designed and simulated for different scenarios (four slots, six slots, and eight slots), where a bandwidth of 57% is achieved in the eight-slot design.