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| 講演名 | 2009-07-09 13:50 Design of On-glass Antennas for FM Diversity Systems Seungbeom Ahn・Youngchul Kay（Hongik Univ.）・Junghoon Oh（Hyundai Kia Motos）・Ikmo Park（Ajou Univ.）・○Hosung Choo（Hongik Univ.）  AP2009-66 |
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| 抄録 | （和） | The monopole type antennas such as the conventional /4 monopole, tuned monopole, roof-mounted micro-antenna and shark fin antenna have been widely used for FM radio reception in various types of vehicles. These antennas, however, suffer from lack of durability and undesirable appearance. To solve these problems on-glass antennas have been used in various vehicles. But these on-glass antennas generally exhibit relatively low signal reception performance due to their poor impedance matching and low antenna gain especially in urban environment where multi-path fading exists. Recently, to improve the receiving performance, some luxury vehicles employ diversity on-glass antenna systems that incorporate two separated antennas in the rear window. In this paper, we report on the channel capacity and diversity gain of the on-glass rear window antennas. Using the radiation pattern of each antenna and the transfer matrix, the correlation coefficient and channel capacity are obtained. Then we observe the variation of the channel capacity by examining three basic design structures that consist of two separated bent striplines. The results show that the distance between the feed positions are the major factor that affects on the channel capacity. In addition the polarization of the two antennas gets more important when the distance between the feeds is greater than a certain threshold value. |
| （英） | The monopole type antennas such as the conventional /4 monopole, tuned monopole, roof-mounted micro-antenna and shark fin antenna have been widely used for FM radio reception in various types of vehicles. These antennas, however, suffer from lack of durability and undesirable appearance. To solve these problems on-glass antennas have been used in various vehicles. But these on-glass antennas generally exhibit relatively low signal reception performance due to their poor impedance matching and low antenna gain especially in urban environment where multi-path fading exists. Recently, to improve the receiving performance, some luxury vehicles employ diversity on-glass antenna systems that incorporate two separated antennas in the rear window. In this paper, we report on the channel capacity and diversity gain of the on-glass rear window antennas. Using the radiation pattern of each antenna and the transfer matrix, the correlation coefficient and channel capacity are obtained. Then we observe the variation of the channel capacity by examining three basic design structures that consist of two separated bent striplines. The results show that the distance between the feed positions are the major factor that affects on the channel capacity. In addition the polarization of the two antennas gets more important when the distance between the feeds is greater than a certain threshold value. |
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| キーワード | （和） | On-glass antennas / Diversity antennas / Channel capacity / / / / / |
| （英） | On-glass antennas / Diversity antennas / Channel capacity / / / / / | |
| 文献情報 | 信学技報, vol. 109, no. 117, AP2009-66, pp. 127-130, 2009年7月. | |
| 資料番号 | AP2009-66 | |
| 発行日 | 2009-07-01 (AP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | AP2009-66 |
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| 研究会情報 | |
| 研究会 | AP SAT |
| 開催期間 | 2009-07-08 - 2009-07-10 |
| 開催地（和） | 小樽市民会館 |
| 開催地（英） | Otaru city, Hokkaido |
| テーマ（和） | 衛星,移動通信におけるアンテナ・伝搬技術,一般 |
| テーマ（英） | AP |
| 講演論文情報の詳細 | |
| 申込み研究会 | AP |
| 会議コード | 2009-07-AP-SAT |
| 本文の言語 | 英語 |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Design of On-glass Antennas for FM Diversity Systems |
| サブタイトル（英） | |
| キーワード(1)（和/英） | On-glass antennas / On-glass antennas |
| キーワード(2)（和/英） | Diversity antennas / Diversity antennas |
| キーワード(3)（和/英） | Channel capacity / Channel capacity |
| キーワード(4)（和/英） | / |
| キーワード(5)（和/英） | / |
| キーワード(6)（和/英） | / |
| キーワード(7)（和/英） | / |
| キーワード(8)（和/英） | / |
| 第1著者 氏名（和/英/ヨミ） | Seungbeom Ahn / Seungbeom Ahn / |
| 第1著者 所属（和/英） | Hongik University (略称： Hongik Univ.) Hongik University (略称： Hongik Univ.) |
| 第2著者 氏名（和/英/ヨミ） | Youngchul Kay / Youngchul Kay / |
| 第2著者 所属（和/英） | Hongik University (略称： Hongik Univ.) Hongik University (略称： Hongik Univ.) |
| 第3著者 氏名（和/英/ヨミ） | Junghoon Oh / Junghoon Oh / |
| 第3著者 所属（和/英） | Hyundai Kia Motos (略称： Hyundai Kia Motos) Hyundai Kia Motos (略称： Hyundai Kia Motos) |
| 第4著者 氏名（和/英/ヨミ） | Ikmo Park / Ikmo Park / |
| 第4著者 所属（和/英） | Ajou University (略称： Ajou Univ.) Ajou University (略称： Ajou Univ.) |
| 第5著者 氏名（和/英/ヨミ） | Hosung Choo / Hosung Choo / |
| 第5著者 所属（和/英） | Hongik University (略称： Hongik Univ.) Hongik University (略称： Hongik Univ.) |
| 講演者 | 第5著者 |
| 発表日時 | 2009-07-09 13:50:00 |
| 発表時間 | 25分 |
| 申込先研究会 | AP |
| 資料番号 | AP2009-66 |
| 巻番号（vol） | vol.109 |
| 号番号（no） | no.117 |
| ページ範囲 | pp.127-130 |
| ページ数 | 4 |
| 発行日 | 2009-07-01 (AP) |
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