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Dual-Band Circle Microstrip Patch Antenna with Parasitic Patch  

Noh Seung-Jin (Dept. of Electronic Computer and Communication Eng., Cheongju University)
Shin Heai-Young (Dept. of Electronic Computer and Communication Eng., Cheongju University)
Kim Young-Sang (Dept. of Electronic Computer and Communication Eng., Cheongju University)
Kim Nam-Soo (Dept. of Electronic Computer and Communication Eng., Cheongju University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.7, 2006 , pp. 665-672 More about this Journal
Abstract
In this paper, we propose and fabricate the dual-band microstrip patch antenna with parasitic patch for S-DMB(Satellite-Digital Multimedia Broadcasting) and ITS (Intelligent Transport System) services. The measured - 10 dB bandwidth and the minimum return loss is 300 MHz and - 27 dB for S-DMB, 600 MHz and -17 dB for ITS, respectively. It is noticed that the measured and simulated results are agreed well. The S-DMB antenna has conical beam pattern in the vertical plane and has omni-directional beam pattern in the horizontal plane. The conical beam pattern has the maximum gain about 4.2 dBi when ${\theta}$ is $45^{\circ}$ at the center frequency of 2.6 GHz. The ITS antenna has directional beam pattern in the vertical plane that has maximum gain about 6.4 dBi when ${\theta}$ is $0^{\circ}$ at the center frequency of 5.8 GHz.
Keywords
DMB Antenna; Parasitic Patch; Ring-Shape; Circle Antenna;
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