JP2008167036A - アンテナ装置及び無線通信装置 - Google Patents
アンテナ装置及び無線通信装置 Download PDFInfo
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- JP2008167036A JP2008167036A JP2006352858A JP2006352858A JP2008167036A JP 2008167036 A JP2008167036 A JP 2008167036A JP 2006352858 A JP2006352858 A JP 2006352858A JP 2006352858 A JP2006352858 A JP 2006352858A JP 2008167036 A JP2008167036 A JP 2008167036A
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- metal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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Abstract
【解決手段】第1及び第2のワイヤは、半導体チップから離れることに応じて、第1及び第2のワイヤ間の距離が広がるように形成される。これにより、第1及び第2のワイヤに流れる電流が互いに打ち消しあうのを防ぎ、さらに金属部を半導体チップからできるだけ離して配置することができる。また、金属部は、第1及び第2のワイヤの直径よりも広い一定の幅を有する帯状の形状とすることで、ワイヤと金属部とでマウントずれが生じても接続する範囲が広いために確実に接続することができる。
【選択図】図1
Description
誘電体基板と、
前記誘電体基板上に配置された半導体チップと、
前記半導体チップの少なくとも1辺と略平行となるよう前記誘電体基板上に形成された金属部と、
前記半導体チップ上に形成された第1及び第2の給電線と、
前記金属部と前記第1の給電線とを接続する第1のワイヤ、及び前記金属部と前記第2の給電線とを接続する第2のワイヤとを備え、
前記第1及び第2のワイヤと前記第1及び第2の給電線との接続部の間の距離L1と、前記第1及び第2のワイヤと前記金属部との接続部の間の距離L2が、L1<L2であり、
前記金属部は、
前記第1及び第2のワイヤの直径よりも広い一定の幅を有する帯状の形状である
ことを特徴とする。
誘電体基板と、
前記誘電体基板上に配置された半導体チップと、
前記誘電体基板上に形成された第1及び第2の金属部と、
前記半導体チップ上に形成された第1及び第2の給電線と、
前記金属部と前記第1の給電線とを接続する第1のワイヤ、及び前記金属部と前記第2の給電線とを接続する第2のワイヤとを備え、
前記第1及び第2のワイヤと前記第1及び第2の給電線との接続部の間の距離L1と、前記第1及び第2のワイヤと前記金属部との接続部の間の距離L2が、L1<L2であり、
前記金属部は、
前記第1及び第2のワイヤとの各接続部を含むようにそれぞれ形成され、かつ前記第1及び第2のワイヤの断面積よりも面積が大きくなるようにそれぞれ形成された第1及び第2の金属部分と、
前記第1及び第2の金属部分より狭い幅を有し、前記第1及び第2の金属部分から前記半導体チップに対して略垂直方向に伸びるように形成された上で、前記第1及び第2の金属部分を電気的に接続するように形成された第3の金属部分と
を備える。
図1は、本発明の第1の実施の形態に係るアンテナ装置1の概略構成を示す図である。図1のアンテナ装置1は、誘電体基板10と、誘電体基板10上に配置された半導体チップ20と、誘電体基板10上に設けた金属部30と、半導体チップ20上の差動給電線40(第1の給電線40−1及び第2の給電線40−2)と、金属部30上の2箇所と差動給電線40のそれぞれとを接続したワイヤ80(第1のワイヤ80−1及び第2のワイヤ80−2)とで構成さる。
図3は、本発明の第2の実施の形態に係るアンテナ装置100の概略構成を示す図である。本実施の形態に係るアンテナ装置100は、金属部110の形状をのぞき、図1に示すアンテナ装置1と同様の構成及び動作であるため、同一符号を付し説明を省略する。
図5に本実施の形態の変形例1に係るアンテナ装置120を示す。図5に示すアンテナ装置120は、2つのワイヤ140を非対称すなわち左右のワイヤ140の長さを異なる長さにしたものである。
図6は、本実施の形態の変形例2に係るアンテナ装置150を示す図である。図6に示すアンテナ装置は、図3に示すアンテナ装置のワイヤ80の本数、接続部60の数を2倍にしたものである。1対の給電線である差動給電線40それぞれに2本ずつワイヤ80の端が接続され、金属部110の両端に近く、金属部110中心よりも面積が広くなっている部分それぞれに2本ずつワイヤ80の他端が接続されている。
図7は、本実施の形態の変形例3に係るアンテナ装置160を示す図である。図7に示すアンテナ装置160は、金属部170が矩形の半導体チップ20の3つの辺に沿って配置されたものである。
図8は、本発明の第3の実施の形態に係るアンテナ装置200の概略構成を示す図である。図8に示すアンテナ装置200は、誘電体基板10上に配置された無給電金属素子210を備える点をのぞき、図3に示すアンテナ装置100と同じ構成であるため、同一符号を付し説明を省略する。
図9は、本発明の第4の実施の形態に係るアンテナ装置220の概略構成を示す図である。図9に示すアンテナ装置220は、誘電体基板10上に配置された無給電金属素子230を備える点をのぞき、図3に示すアンテナ装置100と同じ構成であるため、同一符号を付し説明を省略する。
図12は、第5の実施の形態に係るアンテナ装置240の概略構成を示す図である。第5の実施の形態に係るアンテナ装置240は、無給電金属素子250の開放端が金属部110の方向へ折り曲げられている点をのぞき、図9のアンテナ装置220の構成および動作と同じであるため、同一符号を付し説明を省略する。
図16は、第6の実施の形態に係るアンテナ装置270の概略構成を示す図である。第6の実施の形態に係るアンテナ装置270は、図12のアンテナ装置240の差動給電線40の先に差動回路280を配置、接続し、モールド材290で封止して誘電体基板10の下に半田ボール300を設けることで、モジュール化されている。それ以外の構成および動作は、図12のアンテナ装置240と同じであるため、同一符号を付し説明を省略する。
次に、図17及び図18を用いて、本発明の第7の実施の形態に係るアンテナ装置の応用例を説明する。
10 誘電体基板
20 半導体チップ
30、110 金属部
40 差動給電線
80 ワイヤ
210、230、250 無給電金属素子
Claims (8)
- 誘電体基板と、
前記誘電体基板上に配置された半導体チップと、
前記半導体チップの少なくとも1辺と略平行となるよう前記誘電体基板上に形成された金属部と、
前記半導体チップ上に形成された第1及び第2の給電線と、
前記金属部と前記第1の給電線とを接続する第1のワイヤ、及び前記金属部と前記第2の給電線とを接続する第2のワイヤとを備え、
前記第1及び第2のワイヤと前記第1及び第2の給電線との接続部の間の距離L1と、前記第1及び第2のワイヤと前記金属部との接続部の間の距離L2が、L1<L2であり、
前記金属部は、
前記第1及び第2のワイヤの直径よりも広い一定の幅を有する帯状の形状である
ことを特徴とするアンテナ装置。 - 誘電体基板と、
前記誘電体基板上に配置された半導体チップと、
前記誘電体基板上に形成された第1及び第2の金属部と、
前記半導体チップ上に形成された第1及び第2の給電線と、
前記金属部と前記第1の給電線とを接続する第1のワイヤ、及び前記金属部と前記第2の給電線とを接続する第2のワイヤとを備え、
前記第1及び第2のワイヤと前記第1及び第2の給電線との接続部の間の距離L1と、前記第1及び第2のワイヤと前記金属部との接続部の間の距離L2が、L1<L2であり、
前記金属部は、
前記第1及び第2のワイヤとの各接続部を含むようにそれぞれ形成され、かつ前記第1及び第2のワイヤの断面積よりも面積が大きくなるようにそれぞれ形成された第1及び第2の金属部分と、
前記第1及び第2の金属部分より狭い幅を有し、前記第1及び第2の金属部分から前記半導体チップに対して略垂直方向に伸びるように形成された上で、前記第1及び第2の金属部分を電気的に接続するように形成された第3の金属部分と
を備えることを特徴とするアンテナ装置。 - 前記誘電体基板上であって、前記金属部を基準として、前記半導体チップが形成された側とは反対側に配置された無給電金属素子
をさらに備えることを特徴とする請求項1又は2に記載のアンテナ装置。 - 前記誘電体基板上であって、前記金属部と前記半導体チップの間に配置された無給電金属素子
をさらに備えることを特徴とする請求項1乃至3に記載のアンテナ装置。 - 前記無給電金属素子の開放端は、前記金属部が配置されている方向へ折り曲げられた
ことを特徴とする請求項3又は4に記載のアンテナ装置。 - 前記第1のワイヤと第1の給電線との接続部から前記第2のワイヤと前記第2の給電線との接続部までの前記第1及び第2のワイヤと前記金属部を含む経路長が、動作周波数の略一波長であることを特徴とする請求項1乃至請求項5に記載のアンテナ装置。
- 前記半導体チップ上に形成され、かつ前記差動給電線に接続された差動回路と、
前記誘電体基板及び前記半導体チップ上に形成されたモールド材と、
前記誘電体基板の下方に形成された半田ボールと
をさらに備えることを特徴とする請求項1乃至6に記載のアンテナ装置。 - 請求項1乃至7に記載のアンテナ装置を介してデータ通信を行うことを特徴とする無線通信装置。
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