Chip Resistor and Negative Capacitor Loaded Rectangular Broad Band Microstrip Antennas

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Tarih

2007

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Yayıncı

Beykent Üniversitesi

Erişim Hakkı

Özet

Various communication systems require single radiating element operating in wide band. In this paper, a novel active integrated single microstrip antenna is proposed and its radiation pattern and gain performance is optimized with analysis. The reactive loading is provided by a negative capacitor section embedded within the patch. The active negative capacitor is made of a field-effect transistor that exhibits negative resistance as well as capacitance. It can, therefore, compensate the loss of an inductor. A microstrip patch operating at 10.5 GHz having 12.2% bandwidth has been utilized as a reference antenna. With the proposed antenna design, the antenna radiation pattern can be as large as about 1.5 times that of an antenna without reactive loading. In addition, it has been shown that active compensation significantly improves the matching level.

Açıklama

Anahtar Kelimeler

Matchineg level, active matching, negative active capacitance

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Sayı

Künye

Journal of Science and Technology 1 (1), 2007, 1-16

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