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http://dx.doi.org/10.5515/KJKIEES.2009.20.4.351

Design of a Dual-mode Annular Ring Antenna with a Coupling Feed  

Kim, Jae-Hee (Department of Electronic and Electrical Engineering, POSTECH)
Woo, Dae-Woong (Department of Electronic and Electrical Engineering, POSTECH)
Park, Wee-Sang (Department of Electronic and Electrical Engineering, POSTECH)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.20, no.4, 2009 , pp. 351-356 More about this Journal
Abstract
A dual-mode annular ring antenna for both global positioning system(GPS) and satellite digital multimedia broad-casting(DMB) is designed. The proposed antenna consists of a coupling feed line and four slots on the annular ring patch. The gap between the feed line and the annular ring patch is used for an input impedance matching, and the slot length is used for adjusting the resonant frequency of the $TM_{21}$ mode at the DMB frequency. The antenna was fabricated and measured. The experimental results show that the antenna resonants at the GPS and DMB frequencies with suitable bandwidths, and had a broadside radiation pattern at the GPS band and a conical beam radiation pattern at the DMB band.
Keywords
Annular Ring Antenna; Dual-Band; Slot; Gap Coupling;
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  • Reference
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