Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 11, Issue -, Pages 682-685Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2012.2204718
Keywords
Band-notch function; half-wavelength slot; tapered slot antenna (TSA); ultrawideband (UWB) antenna
Funding
- Korea Communications Commission (KCC), Korea [11911-01207]
- Korea Communications Agency (KCA) [11-911-01-207] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2010-0024647] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A novel tapered slot antenna (TSA) with a band-notched function for ultrawideband (UWB) radios is proposed in this letter. By inserting an Archimedean spiral-shaped slot into a microstrip open-circuit circular stub of microstrip-slotline transition, a UWB operation with a notched frequency band can be obtained. Measured data for the optimized case show the bandwidth for the VSWR < 2 to be 8.8 GHz (from 2.4 to 11.2 GHz) with a notched band frequency from 4.6 to 6.2 GHz. By inserting the resonance slot on the nonradiating part of the antenna, the proposed antenna is capable of avoiding the spatial-dependent bandstop characteristics. Also, the designed antenna has a small size of 50 x 50 mm(2), which is a size reduction of 40% with respect to previous similar antennas.
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