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Design of Microstrip Patch Array Antenna for ISM Band  

이현진 (동강대학 디지탈정보과)
임영석 (전남대학교 공대 전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.8, 2004 , pp. 119-124 More about this Journal
Abstract
In this paper, we are designed and fabricated circular polarization microstrip patch antenna of 5［GH］z bandwidth for the wireless LAN and the ISM. We are proposed new structure that removed the section which intersected at a right angle and were composed to four separated slots. The antenna of proposed structure could solve parasitic elements from intersected in a right angle and weak coupling efficiency from asymmetry between feed line and a slot. The proposed cross slots antenna is easily impedance matching and increased impedance bandwidth. Also this is increased efficiency and a bandwidth of antenna and reduce back lobe of radiation pattern. We designed 2${\times}$2 array antenna of 5［GHz］ band. It took impedance bandwidth 280［MHz］(VSWR < 1.5) and gam 12.5［dBi］
Keywords
array antenna; circular polarization;
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