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A Wideband Bow-Tie Monopole Antenna with Improved Band Rejection Characteristics  

Moon, Soo-Deok (College of Information Technology, Kangwon National University)
Choi, Kyoung (College of Information Technology, Kangwon National University)
Hwang, Hee-Yong (College of Information Technology, Kangwon National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.12, 2006 , pp. 1199-1205 More about this Journal
Abstract
This paper proposes a wideband monopole antenna with improved band rejection characteristics by inserting two band notch slots with half wavelength in radiator. The designed antenna is composed of bow-tie patch fed electromagnetically with parasitic ground patch of a semicircular shape. We obtained band rejection filter-like characteristics by controlling coupling amounts between two horizontal resonance slots. Using this technique, we achieved the broad rejection bandwidth and improved skirt characteristics compared with only one notch slot. The measured bandwidth is from 2.7 GHz to 6.9 GHz for VSWR below 2.0 except the limited band of $4.96{\sim}5.51GHz$. This antenna shows a similar radiation pattern of the ideal monopole and the radiation gain reduction is more than $5{\sim}10dB$ on the x-z plane at rejection frequency.
Keywords
Wideband Monopole; Two Half Wavelength Resonance Slots; Improved Band Rejection Characteristics; Coupling Factor;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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