Miniaturization of a Wide-Band Planar Spiral Antenna by Adding Vias

Li Deng; Shu Fang Li

doi:10.4028/www.scientific.net/AMR.459.79

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 459Miniaturization of a Wide-Band Planar Spiral...

Miniaturization of a Wide-Band Planar Spiral Antenna by Adding Vias

Abstract:

A simple technique to reduce the lateral size of the wide-band planar spiral antenna is presented. It is implemented by dividing the conventional spiral patch into a different number of segments and placing them on different sides of the microwave substrate with vias as the connections. Two rectangle spiral shaped planar spiral antennas were fabricated and measured to demonstrate the capability of lowering the initial resonant frequency by adding connecting vias. According to results, the initial resonant frequency of the proposed antenna has been shifted from 2.4GHz to 1.6GHz; in other words, the antenna size can be reduced to 56%, approximately

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Periodical:

Advanced Materials Research (Volume 459)

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79-81

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.459.79

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Online since:

January 2012

Authors:

Li Deng, Shu Fang Li

Keywords:

Miniaturization, Spiral Antennas, Vias

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