Effect of Conical Cup on Microstrip Antennas

Byungsun PARK  Jae-Hyeuk JANG  Masato TANAKA  Young-Sik KIM  

IEICE TRANSACTIONS on Communications   Vol.E87-B   No.11   pp.3392-3393
Publication Date: 2004/11/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
conical cup microstrip antenna,  cup microstrip antenna,  

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In this letter, a circular microstrip patch antenna with a conical cup is proposed. The results of a simulation and experiment show that the conical cup has a beneficial effect on the antenna's gain and principal plane beamwidths. The maximum gain of this antenna was 12.6 dBi, which is about 3 dB higher than one with a cylindrical cup. The 3-dB beamwidths of the E-and H-planes were 34and 44, respectively.