JP5250764B2 - レンズアンテナ - Google Patents
レンズアンテナ Download PDFInfo
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- JP5250764B2 JP5250764B2 JP2008229307A JP2008229307A JP5250764B2 JP 5250764 B2 JP5250764 B2 JP 5250764B2 JP 2008229307 A JP2008229307 A JP 2008229307A JP 2008229307 A JP2008229307 A JP 2008229307A JP 5250764 B2 JP5250764 B2 JP 5250764B2
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- lens
- antireflection
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- lens antenna
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Description
2 レンズ本体
20 レンズ層
22 レンズ層の金属薄片
3A、3B 反射防止体
30 反射防止層
32 反射防止層の金属薄片
Ce レンズ中心軸
f 電波周波数
fo 焦点距離
Φ 位相シフト量
r レンズ本体と反射防止体のレンズ中心軸からの距離
R レンズ本体と反射防止体の半径
tA 反射防止体の厚み
tL レンズ本体の厚み
εA 反射防止体の比誘電率
εL レンズ本体の比誘電率
ρ 金属薄片の半径
Claims (4)
- 電波を透過する平板状のレンズ本体と、
電波の反射損失を低減するようにレンズ本体のレンズ中心軸方向の少なくとも片側に設けられており、レンズ中心軸から周縁までの距離がレンズ本体と略同一の平板状の反射防止体と、を備えてなり、
前記レンズ本体と前記反射防止体はともに、基板上に小さな金属薄片が多数設けられた層から構成されており、金属薄片の寸法がレンズ中心軸から直交方向の距離に応じて異ならせてあり、
前記金属薄片の寸法は、
金属薄片の寸法と比誘電率との関係と、
反射防止体と空気との境における反射防止体側のインピーダンス及び反射防止体とレンズ本体との境におけるレンズ本体側のインピーダンスを少なくとも用いて、前記反射防止体と空気との境における反射係数がゼロ又は定数値となるように導かれた反射防止体の比誘電率とレンズ本体の比誘電率との関係と、
電波がレンズアンテナを透過したときの位相シフト量と反射防止体の比誘電率及びレンズ本体の比誘電率との関係と、
焦点から放射された電波がレンズアンテナを透過したときに平面波になるように導かれた位相シフト量とレンズ中心軸から直交方向の距離との関係と、
を用いて導かれたものであることを特徴とするレンズアンテナ。 - 請求項1に記載のレンズアンテナにおいて、
前記反射防止体はレンズ本体の両側に設けられていることを特徴とするレンズアンテナ。 - 請求項1又は2に記載のレンズアンテナにおいて、
前記レンズ本体と前記反射防止体の金属薄片は、フォトエッチングにより形成されていることを特徴とするレンズアンテナ。 - 請求項1乃至3のいずれかに記載のレンズアンテナにおいて、
前記反射防止体の厚みを前記レンズ本体の厚みよりも大きくしたことを特徴とするレンズアンテナ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2008229307A JP5250764B2 (ja) | 2008-09-08 | 2008-09-08 | レンズアンテナ |
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JP2008229307A JP5250764B2 (ja) | 2008-09-08 | 2008-09-08 | レンズアンテナ |
Publications (2)
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JP2010063051A JP2010063051A (ja) | 2010-03-18 |
JP5250764B2 true JP5250764B2 (ja) | 2013-07-31 |
Family
ID=42189327
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Application Number | Title | Priority Date | Filing Date |
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JP2008229307A Active JP5250764B2 (ja) | 2008-09-08 | 2008-09-08 | レンズアンテナ |
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JP (1) | JP5250764B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8553509B2 (en) | 2011-05-31 | 2013-10-08 | Funai Electric Co., Ltd. | Optical disc apparatus |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8565609B2 (en) | 2010-12-15 | 2013-10-22 | Raytheon Company | Distribution system for optical reference |
WO2013013467A1 (zh) * | 2011-07-26 | 2013-01-31 | 深圳光启高等理工研究院 | 前馈式雷达天线 |
WO2013013463A1 (zh) * | 2011-07-26 | 2013-01-31 | 深圳光启高等理工研究院 | 前馈式微波天线 |
WO2013013454A1 (zh) * | 2011-07-26 | 2013-01-31 | 深圳光启高等理工研究院 | 后馈式***天线及其***接收*** |
WO2013013469A1 (zh) * | 2011-07-26 | 2013-01-31 | 深圳光启高等理工研究院 | 前馈式雷达天线 |
US9515388B2 (en) | 2012-10-17 | 2016-12-06 | Samsung Electronics Co., Ltd. | Controlled lens antenna apparatus and system |
KR101926986B1 (ko) * | 2017-06-30 | 2018-12-07 | 한국과학기술원 | 렌즈를 포함하는 안테나 장치 및 렌즈 안테나를 이용한 통신 방법 |
CN109216933B (zh) * | 2018-09-13 | 2023-12-15 | 西华师范大学 | 轴向压缩二维平面透镜天线 |
CN111697349B (zh) * | 2020-07-16 | 2021-01-26 | 电子科技大学 | 一种基于准保角变换光学的全金属多波束透镜天线 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62258505A (ja) * | 1985-11-15 | 1987-11-11 | Nozomi Hasebe | 電波レンズ |
JPS62117204A (ja) * | 1985-11-15 | 1987-05-28 | 長谷部 望 | 人工誘電体 |
JPH05191136A (ja) * | 1992-01-14 | 1993-07-30 | Arimura Giken Kk | 平面型位相補償レンズアンテナ |
JP3607886B2 (ja) * | 2001-10-26 | 2005-01-05 | 郁雄 粟井 | 人工誘電体及びこれを用いた共振器 |
KR101105960B1 (ko) * | 2004-12-08 | 2012-01-18 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 강유전성 렌즈 |
US7304617B2 (en) * | 2005-04-05 | 2007-12-04 | Raytheon Company | Millimeter-wave transreflector and system for generating a collimated coherent wavefront |
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- 2008-09-08 JP JP2008229307A patent/JP5250764B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8553509B2 (en) | 2011-05-31 | 2013-10-08 | Funai Electric Co., Ltd. | Optical disc apparatus |
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JP2010063051A (ja) | 2010-03-18 |
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