Tunable band-notched ultra wideband planar monopole antenna

A new tunable band‐notched ultra wideband planar monopole antenna is presented. The proposed antenna consists of a wideband planar monopole antenna, band‐notched resonating stubs, and varactor diodes. To generate the tunable band‐notched characteristic, we applied a short‐circuited quarter‐wavelengt...

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Bibliographic Details
Published in:Microwave and optical technology letters 2009-12, Vol.51 (12), p.2829-2832
Main Authors: Jeong, Won-Seok, Kim, Dong-Zo, Lim, Won-Gyu, Yu, Jong-Won
Format: Article
Language:English
Subjects:
band-notch
planar monopole
tunable antenna
ultra wideband
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Summary:A new tunable band‐notched ultra wideband planar monopole antenna is presented. The proposed antenna consists of a wideband planar monopole antenna, band‐notched resonating stubs, and varactor diodes. To generate the tunable band‐notched characteristic, we applied a short‐circuited quarter‐wavelength stub with a varactor diode to the wideband planar monopole antenna. We show the mechanism for notch characteristic using surface current distribution. This new approach is suitable for designing wideband antenna with narrow band interferer rejection characteristic. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2829–2832, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24744
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.24744