A Modified Transmission Line Antenna with a Spiral Parasitic Element for Circular Polarization
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- KUMON Yasunori
- Faculty of Engineering Fukuoka University
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- TSUKIJI Takehiko
- Faculty of Engineering Fukuoka University
Bibliographic Information
- Other Title
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- うず巻き素子付き円偏波変形伝送線路アンテナ(学生若手発表および一般)
- うず巻き素子付き円偏波変形伝送線路アンテナ
- ウズマキ ソシ ツキ エン ヘンパ ヘンケイ デンソウ センロ アンテナ
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Abstract
Small size antennas with the circular polarization are required for ITS antenna of mobile communication. We developed a circularly polarized modified transmission line antenna(MTLA) using closed-spaced parasitic spiral element for a mobile communication. The properties of this antenna regarding to the axial ratio ,gain and radiation pattern are analyzed by means of the moment method. Various type of spiral element length are analyzed. As the results, we obtain that the axial ratio(≦3) is 20% and the gain is about 6dB. Moreover, it is concluded that the MTLA with a spiral element provides wide-band and dual-mode(vertical, circular polarization) mobile communication antenna.
Journal
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- ITE Technical Report
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ITE Technical Report 26.11 (0), 37-42, 2002
The Institute of Image Information and Television Engineers
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Details 詳細情報について
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- CRID
- 1390001204526677888
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- NII Article ID
- 110003671223
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- NII Book ID
- AN1059086X
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- ISSN
- 24241970
- 13426893
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- NDL BIB ID
- 6120512
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed