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Broadband dual‐frequency coplanar probe‐fed patch antenna for GSM/DCS/PCS base stations
Author(s) -
Chang FaShian,
Wong KinLu
Publication year - 2002
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.10325
Subject(s) - standing wave ratio , broadband , center frequency , electrical engineering , ground plane , gsm , coplanar waveguide , patch antenna , microwave , multi band device , bandwidth (computing) , microstrip antenna , frequency band , engineering , antenna (radio) , physics , telecommunications , band pass filter
This article presents a novel air‐substrate patch antenna backed by a U‐shaped ground plane and excited by a coplanar probe feed for broadband dual‐frequency operation. The obtained impedance bandwidth (1:1.5 VSWR) of the antenna's lower band reaches 388 MHz (or nearly about 50% referenced to the center frequency at 787 MHz) and covers the GSM band (880–960 MHz); the upper band has a bandwidth as large as 575 MHz (or about 30% referenced to the center frequency at 1950 MHz) and covers both the DCS band (1710–1880 MHz) and the PCS band (1850–1990 MHz). Good broadside radiation characteristics for the proposed antenna have also been observed. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 370–372, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10325