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Slot‐coupled compact broadband circular microstrip antenna with chip‐resistor and chip‐capacitor loadings
Author(s) -
Lu JuiHan,
Tang ChiaLuan,
Wong KinLu
Publication year - 1998
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/(sici)1098-2760(19980805)18:5<345::aid-mop11>3.0.co;2-1
Subject(s) - microstrip antenna , resistor , patch antenna , broadband , microstrip , chip , capacitor , electrical engineering , folded inverted conformal antenna , bandwidth (computing) , antenna (radio) , materials science , optoelectronics , engineering , coaxial antenna , electronic engineering , telecommunications , voltage
The characteristics of a slot‐coupled circular microstrip antenna with chip‐resistor and chip‐capacitor loadings are studied. With a chip‐resistor loading, a significant decrease in the resonant frequency of the microstrip antenna is achieved, which can result in a large antenna size reduction, and the operating bandwidth is also seen to be significantly enhanced. It is also found that, when a chip capacitor is further loaded on the chip‐resistor‐loaded patch, a more significant decrease in the resonant frequency of the microstrip antenna can be obtained, with the broadband characteristic very slightly affected. Typical antenna designs and experimental results are presented and discussed. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 18: 345–349, 1998.