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Journal of the Korean Institute of Electromagnetic and Science 2003;3(1):23-28.
Modified Slot-Loaded Multi-Band Microstrip Patch Antenna
Man-Shik Cho1, Il-Kwon Kim1, Han-Back Cho2, Jong-Gwan Yook1, Han-Kyu Park1
1Dept. of Electrical and Electronic Eng, Yonsei University
2RF Research Center, Radix, INC
In this paper, a triple-band planar antenna is proposed for the application to miniaturized automobile safety devices operating at X band(10.5 ㎓), K band(24.15 ㎓), and Ka band(34.3 ㎓). The frequency ratio between the resonant frequencies of this antenna can be adjusted from 1.99 to 2.23 for both X band and K band by varying its slit length. Parasitic elements are added on the modified slot loaded antenna to obtain the third resonance. From numerical as well as experimental results, it has been confirmed that this type of antenna is appropriate for planar multi-band antenna systems.
Key words: Triple-Band, Frequency Ratio, Slit, Parasitic Elements, Modified Slot Loaded Antenna
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