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Slot-coupled compact broadband circular microstrip antenna with chip-resistor and chip-capacitor loadings

✍ Scribed by Jui-Han Lu; Chia-Luan Tang; Kin-Lu Wong

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 221 KB
Volume: 18
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(19980805)18:5<345::aid-mop11>3.0.co;2-1

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✦ Synopsis

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 achie¨ed, 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 ¨ery slightly affected. Typical antenna designs and experimental results are presented and discussed.

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