JP4402105B2 - 平衡型広帯域アンテナ - Google Patents
平衡型広帯域アンテナ Download PDFInfo
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- JP4402105B2 JP4402105B2 JP2006345547A JP2006345547A JP4402105B2 JP 4402105 B2 JP4402105 B2 JP 4402105B2 JP 2006345547 A JP2006345547 A JP 2006345547A JP 2006345547 A JP2006345547 A JP 2006345547A JP 4402105 B2 JP4402105 B2 JP 4402105B2
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- conductor pattern
- broadband antenna
- dielectric substrate
- balanced
- antenna
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(1)バランを用いた平衡型アンテナの整合状態の改善
(2)指向性が周波数特性を持たないアンテナの実現
接地素子の形状を変えることで、入力インピーダンスのReal成分とImaginary成分の周波数変化による変動を抑え、高周波帯でもReal成分を50Ω、Imaginary成分を0Ωに近い値に安定した状態を保ち、整合状態が安定する。また、所定の周波数帯で理想的なダイポールの指向性となり、指向性が周波数特性を持たないアンテナが実現される。
(1)誘電体基板:放射素子と接地素子の導体パターンを形成し、バランを搭載する。
(2)放射素子:誘電体基板の表面に対称な導体パターンで構成する。
(3)バラン:放射素子と給電線路間で平衡−不平衡変換を行う。
(4)接地素子:誘電体基板の裏面に形成されアンテナのグランド板となる突出部を具えた長方形の導体パターンで構成される。突出部の形状は対称、非対称など種々の形状を採用することができる。
11,12、81、82:放射素子
14、84:バラン
16、86:接地素子
17:突出部
Claims (3)
- 誘電体基板の表面に対称な導体パターンで形成される放射素子、その裏面に導体パターンで形成される接地素子を具え、放射素子はバランを介して外部回路と接続される平衡型広帯域アンテナにおいて、
接地素子は前記放射素子を横切る長方形の導体パターンであり、その長方形の導体パターンの長手方向の端部またはその近傍から長手方向に対して直角の方向に突出する導体パターンを具えた
ことを特徴とする平衡型広帯域アンテナ。 - 上記突出する導体パターンが対称に形成された請求項1記載の平衡型広帯域アンテナ。
- 上記突出する導体パターンが非対称に形成された請求項1記載の平衡型広帯域アンテナ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006345547A JP4402105B2 (ja) | 2006-12-22 | 2006-12-22 | 平衡型広帯域アンテナ |
Applications Claiming Priority (1)
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JP2006345547A JP4402105B2 (ja) | 2006-12-22 | 2006-12-22 | 平衡型広帯域アンテナ |
Publications (2)
Publication Number | Publication Date |
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JP2008160366A JP2008160366A (ja) | 2008-07-10 |
JP4402105B2 true JP4402105B2 (ja) | 2010-01-20 |
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JP2006345547A Expired - Fee Related JP4402105B2 (ja) | 2006-12-22 | 2006-12-22 | 平衡型広帯域アンテナ |
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JP (1) | JP4402105B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101081978B1 (ko) * | 2009-11-24 | 2011-11-09 | 포항공과대학교 산학협력단 | 마이크로스트립 위상 반전기 |
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2006
- 2006-12-22 JP JP2006345547A patent/JP4402105B2/ja not_active Expired - Fee Related
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JP2008160366A (ja) | 2008-07-10 |
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