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Regular circular and compact semicircular patch antennas with a T‐probe feeding
Author(s) -
Guo Y. X.,
Luk K. M.,
Lee K. F.
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.1360
Subject(s) - passband , bandwidth (computing) , wideband , microstrip antenna , patch antenna , acoustics , physics , electrical impedance , microwave , optics , materials science , electrical engineering , antenna (radio) , engineering , telecommunications , band pass filter
Wideband T‐probe proximity‐fed regular circular and compact semicircular patch antennas are proposed in this paper. For the regular circular patch antenna, using a foam layer of thickness ∼0.13λ 0 as a supported substrate, an impedance bandwidth of 35% and a gain of over 8.0 dBi have been obtained. For the compact semicircular patch antenna, an impedance bandwidth of 56% and a gain of over 5.4 dBi are achieved with the same substrate thickness. The far‐field patterns are stable across the passband. Experimental and computed results based on the finite‐difference time‐domain method are provided. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 68–71, 2001.