Wideband microstrip patch antenna with U-shaped parasitic elements

Sang Hyuk Wi; Yong Shik Lee; Jong Gwan Yook

doi:10.1109/TAP.2007.893427

Wideband microstrip patch antenna with U-shaped parasitic elements

Sang Hyuk Wi, Yong Shik Lee, Jong Gwan Yook

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

187 Citations (Scopus)

Abstract

A wideband U-shaped parasitic patch antenna is proposed. Two parasitic elements are incorporated into the radiating edges of a rectangular patch whose length and width are λ_g/2 and λ_g/4, respectively, in order to achieve wide bandwidth with relatively small size. Coupling between the main patch and U-shaped parasitic patches is realized by either horizontal or vertical gaps. These gaps are found to be the main factors of the wideband impedance matching. The proposed antenna is designed and fabricated on a small size ground plane (25 mm × 30 mm) for application of compact transceivers. The fabricated antenna on a FR4 substrate shows an impedance bandwidth of 27.3% (1.5 GHz) at 5.5 GHz center frequency. The measured radiation patterns are similar to those of a conventional patch antenna with slightly higher gains of 6.4 dB and 5.2 dB at each resonant frequency.

Original language	English
Pages (from-to)	1196-1199
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	55
Issue number	4
DOIs	https://doi.org/10.1109/TAP.2007.893427
Publication status	Published - 2007 Apr

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1109/TAP.2007.893427

Cite this

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title = "Wideband microstrip patch antenna with U-shaped parasitic elements",

abstract = "A wideband U-shaped parasitic patch antenna is proposed. Two parasitic elements are incorporated into the radiating edges of a rectangular patch whose length and width are λg/2 and λg/4, respectively, in order to achieve wide bandwidth with relatively small size. Coupling between the main patch and U-shaped parasitic patches is realized by either horizontal or vertical gaps. These gaps are found to be the main factors of the wideband impedance matching. The proposed antenna is designed and fabricated on a small size ground plane (25 mm × 30 mm) for application of compact transceivers. The fabricated antenna on a FR4 substrate shows an impedance bandwidth of 27.3% (1.5 GHz) at 5.5 GHz center frequency. The measured radiation patterns are similar to those of a conventional patch antenna with slightly higher gains of 6.4 dB and 5.2 dB at each resonant frequency.",

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Wideband microstrip patch antenna with U-shaped parasitic elements

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