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Design of a Dual-Band Chip Antenna Using a Gap-Fed Branch

Hyengcheul CHOI, Hyeongdong KIM

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Summary :

Dual-band chip antennas usually have a narrow bandwidth in the first resonance frequency band due to an inter-coupling capacitance. In order to analyze the effect of the inter-coupling capacitance, an equivalent circuit of an antenna with a branch radiator is considered in this paper. Based on the equivalent circuit model, it is found that the inter-coupling capacitance reduces impedance bandwidth. This paper proposes a gap feeding method to alleviate the effect of the inter-coupling capacitance and explains it using an equivalent circuit.

Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.8 pp.2759-2761
Publication Date
2009/08/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E92.B.2759
Type of Manuscript
LETTER
Category
Antennas and Propagation

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