Compact Planar Microstrip-Fed Printed Antenna with Double Band-Filtering for UWB Application
Keywords:
Anchor-shaped strip, inverted Uring structure, UWB applicationsAbstract
In this paper, a new design of dual bandnotch printed monopole antenna for UWB applications is proposed. The antenna consists of a circular disc radiating patch with a protruded anchor-shaped strip, a feed line with an inverted Uring slot and a ground plane structure, which provides a wide usable fractional bandwidth of more than 125% (2.69-12.53 GHz) with dual bandstop performance around of 3.3-4.2 GHz and 5-6 GHz. In the proposed structure, by using a protruded anchor-shaped strip in the radiating patch, a single frequency band-stop performance can be achieved. Also, in order to create the second notched frequency, an inverted U-ring slot was cut at the feed line. Simulated and measured results obtained for this antenna show that the proposed monopole antenna offers two notched bands, covering all the 5.2/5.8 GHz WLAN, 3.5/5.5 GHz WiMAX and 4-GHz C-band range. The proposed antenna has a small dimension of 12×18×1.6 mm3 .
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References
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