WIDEBAND DUAL-LAYER PATCH ANTENNA FED BY A MODIFIED L-STRIP

Authors

  • Zhongbao Wang
  • Shaojun Fang
  • Shiqiang F

DOI:

https://doi.org/10.1590/S2179-10742010000200003

Keywords:

good impedance matching, cross-polarization suppression, wideband, modified L-strip, dual-layer patch antenna

Abstract

A wideband patch antenna is proposed. By using the dual-layer patch configuration and modified L-strip feed technique, the impedance bandwidth of the patch antenna for VSWR<1.2 is broadened to 22% with respect to 900 MHz, which is superior to the other available patch antennas. In addition, by means of the modified L-shaped strip, the high cross polarization levels of the proposed antenna are suppressed effectively. Simulation results are compared with the measurements, and a good agreement is obtained. The measurements show that the antenna has a low cross-polarization level (<-20dB) and an acceptable gain level (~9dBi) across the operating bandwidth. At last, a parametric study and a design guideline of the proposed antenna are also presented to facilitate the design and optimization processes for engineers.

References

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Published

2010-08-01

How to Cite

Zhongbao Wang, Shaojun Fang, & Shiqiang F. (2010). WIDEBAND DUAL-LAYER PATCH ANTENNA FED BY A MODIFIED L-STRIP. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 9(2), 89-99. https://doi.org/10.1590/S2179-10742010000200003

Issue

Section

Regular Papers