Compact CPW-fed ultra-wide band antenna with dual band notched characteristics

Y. S. Li; X. D. Yang; C. Y. Liu; T. Jiang

doi:10.1587/elex.7.1597

LETTER

Compact CPW-fed ultra-wide band antenna with dual band notched characteristics

Y. S. Li, X. D. Yang, C. Y. Liu, T. Jiang

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Keywords: fork-like antenna, ultra-wideband (UWB), band notched antenna

JOURNAL FREE ACCESS

2010 Volume 7 Issue 20 Pages 1597-1601

DOI https://doi.org/10.1587/elex.7.1597

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Abstract

A CPW-fed ultra-wideband antenna with dual band-notch characteristics is realized experimentally and numerically. Two notched frequency bands are obtained by utilizing a tuning stub between the fork-like radiation element and a rectangle slot in the CPW ground plane. The two notched bands can be controlled by adjusting the length of the tuning stub and the length of the rectangle slot. Experimental and numerical antenna shows that the proposed antenna, with compact size of 21×28mm², has an impedance bandwidth ranging from 3.1GHz to 10.6GHz for voltage standing-wave ratio less than 2, expect two notch band frequency 5GHz-6GHz for WLAN and 7.7GHz-8.5GHz for X-band for satellite and military applications.

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