Radiation Properties of Multi-Band Equilateral Triangular Microstrip Antennas with Folded Slots(Planar Antennas,<Special Section>Emerging Microwave Techniques)
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概要
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This paper presents novel multi-band equilateral triangular microstrip antennas (ET-MSAs) fed by an L-shaped feeding probe. Two types of the ET-MSA are proposed in this paper; they are ET-MSA with closed folded slots and open folded slots with an embedded bridge. The antenna prototypes presented in this paper assume four folded slots in which a metal strip is inserted to realize a good multi-band performance. In addition, the open folded slots, in which the metal strip inside the folded slot is connected to the ET-MSA by the embedded metal bridge, leads to miniaturize the antenna. The proposed antennas are printed on the top layer of a PTFE substrate while the L-probe is printed on the bottom one. The L-shaped probe is utilized due to its tremendous performance in providing a wideband impedance matching. Five resonant frequencies of the ET-MSAs with closed folded slots and with open folded slots are predicted by the electromagnetic simulator (IE3D) based on the method of moment, respectively. Some parametric studies have been also investigated to meet an appropriate multi-band performance. A broadside radiation pattern and gain of 3.0-7.0dBi have been confirmed by the measurement for the entire observed frequencies. Measured results agree well with the prediction. Thus, these antenna systems are demonstrated to be useful models for a multi-band planar antenna.
- 2006-12-01
著者
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Kimura Yuichi
Dept. Of Electrical And Electronic Systems Saitama University
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Kimura Yuichi
Saitama Univ. Saitama‐shi Jpn
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CHAYONO Ridho
Saitama University
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HANEISHI Misao
Saitama University
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Chayono Ridho
Dept. Of Electrical And Electronic Systems Saitama University
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Kimura Y
Department Of Electrical And Electronic Systems Saitama University
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Kimura Yuichi
Saitama Univ. Saitama Jpn
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Haneishi Misao
Saitama Univ. Saitama Jpn
関連論文
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- 書評 Backhouse, R. and P. Fontaine, eds. : The History of the Social Sciences since 1945