A Planar UWB Antenna with Switchable Single/Double Band-Rejection Characteristics

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Date
2016-09
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Mark
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Společnost pro radioelektronické inženýrství
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Abstract
In this Paper, a reconfigurable antenna with capability to operate in the ultrawideband (UWB) mode from 2.85 to 14.4 GHz with switchable notch bands of 3.25–4.26 GHz, 5.1–5.9 GHz or 7.1-7.8 GHz, is presented. The proposed antenna has a simple configuration and compact size of 17 × 14 mm2. To make the band-notches, three methods (methods of slot antenna, parasitic patches and backplane structure) are used. To achieve the reconfigurability, three PIN diode are placed on the proposed antenna. A PIN diode is inserted over the L-shaped parasitic element and the rectangular patch, another one is placed between the two parasitic elements on the ground plane, and other across the square ring-shaped slot, respectively. Antenna performance can be changed by adjusting the status of the PIN diodes that make the band-notches in applications bands (WLAN, WiMAX/C-band and X-band). Good group delay and monopole-like radiation pattern characteristics are achieved in the frequency band of interest. The antenna performance both by simulation and by experiment indicates that it is suitable and a good candidate for UWB applications.
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Citation
Radioengineering. 2016 vol. 25, č. 3, s. 429-435. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2016/16_03_0429_0435.pdf
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Peer-reviewed
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en
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Creative Commons Attribution 3.0 Unported License
http://creativecommons.org/licenses/by/3.0/
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