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A conical‐pattern annular‐ring microstrip antenna with a photonic bandgap ground plane
Author(s) -
Lin ShunYun,
Wong KinLu
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1251
Subject(s) - ground plane , patch antenna , microstrip antenna , optics , radiation pattern , materials science , optoelectronics , antenna (radio) , physics , engineering , electrical engineering
A probe‐fed annular‐ring microstrip antenna with a photonic bandgap (PBG) ground plane operating in the higher order mode of TM 21 for conical‐pattern radiation is experimentally demonstrated. The antenna studied is printed on a thin FR4 substrate (relative permittivity 4.4) and, owing to the PBG ground plane used, significant improvements in the antenna performances are observed. The obtained impedance bandwidth is doubled, and the antenna gain is enhanced by about 7 dBi. Details of the experimental results are presented and discussed. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 159–161, 2001.