JP2008124878A - Base for antenna - Google Patents

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Publication number
JP2008124878A
JP2008124878A JP2006307820A JP2006307820A JP2008124878A JP 2008124878 A JP2008124878 A JP 2008124878A JP 2006307820 A JP2006307820 A JP 2006307820A JP 2006307820 A JP2006307820 A JP 2006307820A JP 2008124878 A JP2008124878 A JP 2008124878A
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Japan
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antenna
main body
plate
body plate
radio waves
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JP2006307820A
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JP4915216B2 (en
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Rikiya Ishikawa
力也 石川
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Sony Corp
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Sony Corp
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Publication of JP2008124878A publication Critical patent/JP2008124878A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a base for antenna capable of improving a gain of a plate-like antenna, and advantageous in ensuring the strength of received signal. <P>SOLUTION: A base 10 for antenna comprises a base mount 12, a body plate 14, a reflecting plate 16, and an antenna support 18 for supporting a plate-like antenna 22 receiving radio waves for television broadcast at a separated position in front of the body plate 14. The reflecting plate 16 is formed with conductive material reflecting radio waves and attached on a rear surface 1404 of the body plate 14. The reflecting plate 16 reflects radio waves to be received by the antenna 22, towards the antenna 22. When the antenna 22 is supported by the antenna support 18, the antenna support 18 places the antenna 22 at a position where a relation ΔL≈λ/4 is satisfied. The distance between the reflecting plate 16 and the antenna 22 is set to ΔL, and a wavelength of radio waves to be received is set to λ. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はアンテナ装着用置き台に関する。   The present invention relates to an antenna mounting base.

テレビジョン装置に接続されて使用される板状のアンテナが提案されている（特許文献１乃至３参照）。
これら板状のアンテナは、専用の支持具を用いて支柱に取り付けられ、あるいは、スタンドを用いて載置面に載置されている。
特開平８−７８９２３ 特開平９−１６２６１３ 特開平１１−１２７００７ A plate-like antenna used by being connected to a television apparatus has been proposed (see Patent Documents 1 to 3).
These plate-like antennas are attached to the support column using a dedicated support, or are mounted on a mounting surface using a stand.
JP-A-8-78923 JP-A-9-162613 JP-A-11-127007

ところで、このような支持具やスタンドを用いて板状のアンテナを設置する際、電波を効率よく受信するために、板状のアンテナを室内の窓際に置いたり、あるいは、板状のアンテナの向きを電波の進行方向に向けるなどの工夫が必要となる。
しかしながら、到達する電波の強度が低い場合には、そのような工夫をしても板状のアンテナが電波を受信することで得られる受信信号の強度を確保するにも限界があった。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、板状のアンテナの利得を向上することができ受信信号の強度を確保する上で有利なアンテナ装着用置き台を提供することにある。 By the way, when installing a plate-like antenna using such a support or stand, in order to efficiently receive radio waves, the plate-like antenna is placed near the indoor window or the direction of the plate-like antenna It is necessary to devise such as directing in the traveling direction of radio waves.
However, when the intensity of the reaching radio wave is low, there is a limit in securing the intensity of the received signal obtained by the plate-like antenna receiving the radio wave even with such a device.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide an antenna mounting base that can improve the gain of a plate-like antenna and is advantageous in securing the strength of a received signal. Is to provide.

上述の目的を達成するため、本発明のアンテナ装着用台は、被載置面に載置される基台と、前記基台から立設され電波が通過する非導電材料で形成された本体板部と、前記本体板部に設けられ電波を反射する材料で形成された反射板と、前記本体板部に設けられ前記本体板部の前方に離れた箇所でテレビジョン放送用の電波を受信する板状アンテナを支持するアンテナ支持部とを備えることを特徴とする。   In order to achieve the above-described object, an antenna mounting base according to the present invention includes a base placed on a placement surface, and a main body plate formed of a non-conductive material that is erected from the base and through which radio waves pass. And a reflector plate formed of a material that reflects radio waves provided on the main body plate portion, and receives radio waves for television broadcasting at a location provided on the main body plate portion and away from the front of the main body plate portion. And an antenna support portion for supporting the plate antenna.

本発明によれば、板状アンテナをアンテナ支持部に支持させた状態で、板状アンテナの後方に位置する反射板によって反射された電波が板状アンテナに導かれるので、電波を効率よく板状アンテナに導くことができる。   According to the present invention, since the radio wave reflected by the reflector located behind the plate antenna is guided to the plate antenna in a state where the plate antenna is supported by the antenna support portion, the radio wave is efficiently plate-shaped. Can lead to antenna.

（第１の実施の形態）
次に、本発明の第１の実施の形態について図面を参照して説明する。
図１は第１の実施の形態のアンテナ装着用置き台１０にアンテナ２２が装着された状態を示す側面図、図２（Ａ）はアンテナ支持部１８を除いたアンテナ装着用置き台１０の正面図、（Ｂ）は同平面図、（Ｃ）は同側面図である。
アンテナ装着用置き台１０は、図１、図２に示すように、基台１２と、本体板部１４と、反射板１６と、板状のアンテナ（板状アンテナ）２２を支持するアンテナ支持部１８とを備えている。 (First embodiment)
Next, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing a state where the antenna 22 is mounted on the antenna mounting base 10 of the first embodiment, and FIG. 2A is a front view of the antenna mounting base 10 excluding the antenna support 18. FIG. 4B is a plan view of the same, and FIG.
As shown in FIGS. 1 and 2, the antenna mounting base 10 includes an antenna support portion that supports a base 12, a main body plate portion 14, a reflection plate 16, and a plate-like antenna (plate-like antenna) 22. 18.

基台１２は、図１、図２（Ａ）、（Ｂ）、（Ｃ）に示すように、被載置面に載置される平板部１２Ａで構成され、本体板部１４は、平板部１２Ａからブラケット１２Ｂを介して立設されている。
本体板部１４は合成樹脂などの電波が通過する非導電材料で形成され、前面１４０２と、前面１４０２の反対側に位置する後面１４０４とを有している。
なお、本実施の形態では、平板部１２Ａおよびブラケット１２Ｂも合成樹脂などの電波が通過する非導電材料で形成されている。
本体板部１４の前面１４０２の左右両側に、本体板部１４と一体にレール２６が設けられている。
レール２６は、本体板部１４の前面１４０２の両外側の箇所で上下に延在している。
レール２６の下端にはストッパ１２０２が設けられている。 As shown in FIGS. 1, 2 </ b> A, 2 </ b> B, and 2 </ b> C, the base 12 includes a flat plate portion 12 </ b> A that is placed on the placement surface, and the main body plate portion 14 is a flat plate portion. It is erected from 12A via a bracket 12B.
The main body plate portion 14 is formed of a non-conductive material such as synthetic resin through which radio waves pass, and has a front surface 1402 and a rear surface 1404 located on the opposite side of the front surface 1402.
In the present embodiment, the flat plate portion 12A and the bracket 12B are also formed of a nonconductive material such as synthetic resin through which radio waves pass.
Rails 26 are provided integrally with the main body plate portion 14 on both the left and right sides of the front surface 1402 of the main body plate portion 14.
The rail 26 extends up and down at locations on both outer sides of the front surface 1402 of the main body plate portion 14.
A stopper 1202 is provided at the lower end of the rail 26.

反射板１６は、図１、図２（Ｃ）に示すように、金属などの電波を反射する導電材料で形成され、本体板部１４の後面１４０４に取着されている。
本実施の形態では、反射板１６は、本体板部１４の後面１４０４の全面を覆うように設けられている。なお、反射板１６は本体板部１４の内部に取着されていてもよい。
反射板１６はアンテナ２２で受信しようとする電波をアンテナ２２に向けて反射するものである。
なお、電波を反射する材料としては、金属以外の導電材料など従来公知のさまざまな材料が採用可能である。
また、第１の実施の形態では、反射板１６の面積は後述するアンテナ２２の面積（放射面の面積）の１／２以上２／３以下となっている。 As shown in FIGS. 1 and 2C, the reflecting plate 16 is formed of a conductive material that reflects radio waves such as metal, and is attached to the rear surface 1404 of the main body plate portion 14.
In the present embodiment, the reflecting plate 16 is provided so as to cover the entire rear surface 1404 of the main body plate portion 14. In addition, the reflecting plate 16 may be attached to the inside of the main body plate portion 14.
The reflector 16 reflects the radio wave to be received by the antenna 22 toward the antenna 22.
In addition, as a material that reflects radio waves, various conventionally known materials such as conductive materials other than metals can be employed.
In the first embodiment, the area of the reflector 16 is not less than 1/2 and not more than 2/3 of the area of the antenna 22 (area of the radiation surface) described later.

アンテナ支持部１８は、本体板部１４の前方に離れた箇所でテレビジョン放送用の電波を受信するアンテナ２２を支持するもので、図１に示すように、本体板部１４の前面１４０２に上方から上下に移動可能に結合されたスライド部材２８と、本体板部１４の前面１４０２に対するスライド部材２８の下限位置を規制し下限位置でスライド部材２８を係止する係止部と、スライド部材２８とアンテナ２２とを連結する連結部とを含んで構成されている。   The antenna support portion 18 supports an antenna 22 that receives radio waves for television broadcasting at a location far in front of the main body plate portion 14. As shown in FIG. 1, the antenna support portion 18 is located above the front surface 1402 of the main body plate portion 14. A slide member 28 that is movably coupled to the front surface 1402 of the main body plate portion 14, a locking portion that restricts the lower limit position of the slide member 28 relative to the front surface 1402 of the main body plate portion 14 and locks the slide member 28 at the lower limit position, A connecting portion that connects the antenna 22 is included.

図３（Ａ）はスライド部材２８の平面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は（Ａ）のＣ矢視図である。
スライド部材２８は、レール２６に上下にスライド可能に結合されている。
スライド部材２８は、図３（Ａ）、（Ｂ）に示すように、矩形板状を呈している。
スライド部材２８は、前面２８０２と、前面２８０２の反対側に位置する後面２８０４とを有している。
後面２８０４の左右両側には、左右のレール２６に係合するレール溝２８０６がそれぞれ設けられ、レール溝２８０６がレール２６に係合することで、スライド部材２８がレール２６に対して前後方向に移動不能で上下方向にスライド可能に結合される。
スライド部材２８は、本体板部１４に結合された状態で、スライド部材２８の下縁がストッパ１２０２に当接することでそれ以上下方への移動がなされない下限位置が決定されている。したがって、本実施の形態では、ストッパ１２０２が前記係合部を構成している。
スライド部材２８の上部寄りの箇所には上下左右に間隔を置いて保持部材３０を取り付けるための４つのねじ挿通孔２８１２が貫通形成されている。
なお、本実施の形態では、スライド部材２８は合成樹脂などの電波が通過する非導電材料で形成されている。 3A is a plan view of the slide member 28, FIG. 3B is a view as viewed from the arrow B in FIG. 3A, and FIG. 3C is a view as viewed from the arrow C in FIG.
The slide member 28 is coupled to the rail 26 so as to be slidable up and down.
As shown in FIGS. 3A and 3B, the slide member 28 has a rectangular plate shape.
The slide member 28 has a front surface 2802 and a rear surface 2804 located on the opposite side of the front surface 2802.
Rail grooves 2806 that engage with the left and right rails 26 are respectively provided on the left and right sides of the rear surface 2804, and the slide member 28 moves in the front-rear direction relative to the rail 26 by engaging the rail grooves 2806 with the rail 26. It is impossible to slide up and down.
The lower limit position at which the slide member 28 is not further moved downward is determined by the lower edge of the slide member 28 coming into contact with the stopper 1202 while being coupled to the main body plate portion 14. Therefore, in this embodiment, the stopper 1202 constitutes the engaging portion.
Four screw insertion holes 2812 for attaching the holding member 30 to the upper part of the slide member 28 at intervals in the vertical and horizontal directions are formed through.
In the present embodiment, the slide member 28 is formed of a non-conductive material such as a synthetic resin through which radio waves pass.

図４は保持部材３０の側面図、図５（Ａ）は保持部材３０の本体３０Ａの側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は（Ａ）のＣ矢視図、図６（Ａ）は保持部材３０の押さえ部材３０Ｂの側面図、（Ｂ）は（Ａ）のＢ矢視図である。
本実施の形態では、アンテナ支持部１８は前記連結部を含んで構成され、前記連結部は保持部材３０を含んで構成されている。
保持部材３０は、図１に示すように、スライド部材２８に取着されている。
保持部材３０は、図４に示すように、本体３０Ａと、本体３０Ａにねじを介して取着される押さえ部材３０Ｂとを有し、本体３０Ａと押さえ部材３０Ｂとの合わせ面にわたって球面状の球面軸受け３０Ｃが形成されている。
押さえ部材３０Ｂは、図６に示すように、球面で形成され球面軸受け３０Ｃの一部を構成する凹部３００２と、凹部３００２の周囲に設けられた４つのねじ挿通孔３００４とを有している。
本体３０Ａは、図５に示すように、球面で形成され凹部３００２と協働して球面軸受け３０Ｃを構成する凹部３０１０と、凹部３０１０の周囲に設けられ押さえ部材３０Ｂの４つのねじ挿通孔３００４を挿通した非導電材料からなるねじが螺合される４つの雌ねじ３０１２と、スライド部材２８の４つのねじ挿通孔２８１２を挿通されたねじが螺合される４つの雌ねじ３０１４とを有している。
保持部材３０は、図３、図５に示すように、スライド部材２８のねじ挿通孔２８１２に挿通された非導電材料からなる４つのねじがそれぞれ４つの雌ねじ３０１４に螺合することでスライド部材２８の上部に取着される。
なお、本実施の形態では、保持部材３０と前記ねじは合成樹脂などの電波が通過する非導電材料で形成されている。 4A is a side view of the holding member 30, FIG. 5A is a side view of the main body 30A of the holding member 30, FIG. 4B is a view taken along the arrow B in FIG. 6A is a side view of the pressing member 30B of the holding member 30, and FIG. 6B is a view taken in the direction of arrow B in FIG.
In the present embodiment, the antenna support portion 18 includes the connecting portion, and the connecting portion includes the holding member 30.
As shown in FIG. 1, the holding member 30 is attached to the slide member 28.
As shown in FIG. 4, the holding member 30 has a main body 30A and a pressing member 30B attached to the main body 30A via a screw, and a spherical spherical surface over the mating surface of the main body 30A and the pressing member 30B. A bearing 30C is formed.
As shown in FIG. 6, the pressing member 30 </ b> B has a concave portion 3002 that is a spherical surface and constitutes a part of the spherical bearing 30 </ b> C, and four screw insertion holes 3004 provided around the concave portion 3002.
As shown in FIG. 5, the main body 30A includes a concave portion 3010 that is formed of a spherical surface and forms a spherical bearing 30C in cooperation with the concave portion 3002, and four screw insertion holes 3004 of the pressing member 30B that are provided around the concave portion 3010. There are four female screws 3012 into which screws inserted from the inserted non-conductive material are screwed, and four female screws 3014 into which screws inserted through the four screw insertion holes 2812 of the slide member 28 are screwed.
As shown in FIGS. 3 and 5, the holding member 30 is configured such that four screws made of a non-conductive material inserted into the screw insertion holes 2812 of the slide member 28 are screwed into the four female screws 3014 respectively. Attach to the top of the.
In the present embodiment, the holding member 30 and the screw are formed of a nonconductive material such as a synthetic resin through which radio waves pass.

図７（Ａ）はアンテナ支持板３４の平面図、（Ｂ）は（Ａ）のＢ矢視図である。
図１に示すように、本実施の形態では、アンテナ２２はアンテナ支持板３４に支持され、アンテナ支持板３４は、連結部材３２を介して保持部材３０に結合されている。すなわち、本実施の形態では、アンテナ２２は、アンテナ支持板３４および連結部材３２を介してアンテナ支持部１８に支持されている。
アンテナ支持板３４は、図７に示すように、アンテナ２２と同一の輪郭形状の矩形板状を呈し、アンテナ２２が取着される前面３４０２と、前面３４０２と反対側に位置する後面３４０４とを有している。
アンテナ支持板３４の４隅近傍の箇所には、ねじ挿通孔３４０６が貫通形成されている。
後面３４０４の中央には連結部材３２が設けられている。
連結部材３２は、球状部３２０２と、球状部３２０２を後面３４０４に接続する軸部３２０４とを有している。
球状部３２０２は、球面軸受け３０Ｃに支持されて球面軸受け３０Ｃにより球面軸受け３０Ｃの中心に対して何れの方向にも傾動調節可能かつ回転可能に保持されるように形成されている。すなわち、ユーザーがアンテナ２２を傾動させ回転させた際に、アンテナ２２がユーザーの所望の方向に傾動、回転でき、かつ、球状部３２０２と球面軸受け３０Ｃとの間の摩擦力によりその傾動、回転状態が保持されるように形成されている。
なお、本実施の形態では、連結部材３２およびアンテナ支持板３４は合成樹脂などの電波が通過する非導電材料で形成されている。 FIG. 7A is a plan view of the antenna support plate 34, and FIG. 7B is a view taken along the arrow B in FIG.
As shown in FIG. 1, in this embodiment, the antenna 22 is supported by an antenna support plate 34, and the antenna support plate 34 is coupled to a holding member 30 via a connecting member 32. That is, in the present embodiment, the antenna 22 is supported by the antenna support portion 18 via the antenna support plate 34 and the connecting member 32.
As shown in FIG. 7, the antenna support plate 34 has a rectangular plate shape having the same contour shape as the antenna 22, and includes a front surface 3402 to which the antenna 22 is attached, and a rear surface 3404 located on the opposite side of the front surface 3402. Have.
Screw insertion holes 3406 are formed in the vicinity of the four corners of the antenna support plate 34 so as to penetrate therethrough.
A connecting member 32 is provided at the center of the rear surface 3404.
The connecting member 32 includes a spherical portion 3202 and a shaft portion 3204 that connects the spherical portion 3202 to the rear surface 3404.
The spherical portion 3202 is supported by the spherical bearing 30C and is formed so as to be tiltable and rotatable in any direction with respect to the center of the spherical bearing 30C by the spherical bearing 30C. That is, when the user tilts and rotates the antenna 22, the antenna 22 can be tilted and rotated in the user's desired direction, and the tilting and rotating state is caused by the frictional force between the spherical portion 3202 and the spherical bearing 30C. Is formed to be held.
In the present embodiment, the connecting member 32 and the antenna support plate 34 are made of a non-conductive material such as synthetic resin through which radio waves pass.

図８（Ａ）はアンテナ２２の平面図、（Ｂ）は（Ａ）のＢ矢視図である。
アンテナ２２は、図１に示すように、アンテナ支持板３４に取着されている。
アンテナ２２は、テレビジョン放送の電波を受信するものであり板状を呈している。
本実施の形態では、アンテナ２２は長方形の板状を呈している。
アンテナ２２は、例えば、プリント基板と、該プリント基板に形成された帯状の導電パターンとを有し、導電パターンは、受信すべき電波の帯域、例えば、地上デジタル放送の電波であれば、ＵＨＦの帯域の電波を受信するのに適した大きさと形状で形成されている。
また、前記プリント基板などが薄い場合には、該プリント基板に樹脂板などを貼り合わせて補強してもよい。
アンテナ２２は、図１に示すように、ケーブル２３Ａおよびこのケーブル２３Ａに接続されたコネクタ２３Ｂを介してテレビジョン装置のアンテナ受信用コネクタに接続され、アンテナ２２で電波が受信されることによりアンテナ２２から出力される受信信号がテレビジョン装置のチューナー回路に供給される。これにより、テレビジョン装置の表示装置にテレビジョン放送の放送画面が表示され、また、テレビジョン装置のスピーカーからテレビジョン放送の音声が出力される。
アンテナ２２は、図８に示すように、前面２２０２（放射面）と、前面２２０２の反対側に位置しアンテナ支持板３４の前面３４０２に重ねあわされる後面２２０４とを有している。本実施の形態では、前面２２０２（放射面）は平面上を延在している。
アンテナ２２の後面２２０４の四隅近傍には、アンテナ２２をアンテナ支持板３４に取り付ける雌ねじ２２０６が形成されている。
アンテナ２２は、アンテナ支持板３４の４つのねじ挿通孔３４０６を挿通したねじが雌ねじ２２０６に螺合することでアンテナ支持板３４に取り付けられている。 FIG. 8A is a plan view of the antenna 22, and FIG. 8B is a view taken along the arrow B in FIG.
The antenna 22 is attached to an antenna support plate 34 as shown in FIG.
The antenna 22 receives television broadcast radio waves and has a plate shape.
In the present embodiment, the antenna 22 has a rectangular plate shape.
The antenna 22 has, for example, a printed circuit board and a band-shaped conductive pattern formed on the printed circuit board. If the conductive pattern is a radio wave band to be received, for example, a terrestrial digital broadcast radio wave, It is formed in a size and shape suitable for receiving radio waves in the band.
When the printed board is thin, a resin plate or the like may be bonded to the printed board for reinforcement.
As shown in FIG. 1, the antenna 22 is connected to an antenna receiving connector of a television apparatus via a cable 23A and a connector 23B connected to the cable 23A. The reception signal output from is supplied to the tuner circuit of the television apparatus. As a result, a television broadcast screen is displayed on the display device of the television device, and audio of the television broadcast is output from the speaker of the television device.
As shown in FIG. 8, the antenna 22 has a front surface 2202 (radiating surface) and a rear surface 2204 that is located on the opposite side of the front surface 2202 and overlaps the front surface 3402 of the antenna support plate 34. In the present embodiment, the front surface 2202 (radiation surface) extends on a plane.
Female screws 2206 for attaching the antenna 22 to the antenna support plate 34 are formed in the vicinity of the four corners of the rear surface 2204 of the antenna 22.
The antenna 22 is attached to the antenna support plate 34 by the screws inserted through the four screw insertion holes 3406 of the antenna support plate 34 being screwed into the female screws 2206.

そして、本実施の形態では、アンテナ支持部１８は、図１に示すように、該アンテナ支持部１８によってアンテナ２２を支持した状態で、反射板１６とアンテナ２２との間の間隔をΔＬとし、受信しようとする電波の波長をλとした場合に、アンテナ２２をΔＬ≒λ／４の関係を満たす箇所に位置させるように構成されている。   In the present embodiment, as shown in FIG. 1, the antenna support unit 18 supports the antenna 22 by the antenna support unit 18, and the interval between the reflector 16 and the antenna 22 is ΔL. When the wavelength of the radio wave to be received is λ, the antenna 22 is configured to be positioned at a location that satisfies the relationship ΔL≈λ / 4.

以上説明したように、本実施の形態によれば、アンテナ装着用置き台１０を用いてアンテナ２２を支持するので、アンテナ２２によってテレビジョン放送の電波を効率よく受信するために、アンテナ２２をアンテナ装着用置き台１０とともに室内の窓際に設置したり、あるいは、アンテナ２２の向きを電波の進行方向に向けることが容易にできることは無論のこと、アンテナ２２の後方に配置された反射板１６によって反射された電波がアンテナ２２に反射して導かれ、これによりアンテナ２２の利得の向上が図られるので、アンテナ２２によって得られる受信信号の強度を確保する上で有利となり、テレビジョン放送の放送画面をより鮮明に鑑賞する上で有利となる。
また本実施の形態では、反射板１６とアンテナ２２との間に形成される間隔ΔＬが、受信しようとする電波の波長λの約４分の１となるため、反射板１６で反射された電波をより効率よくアンテナ２２に反射して導くことができるので、アンテナ２２の利得の向上をさらに図ることができ、アンテナ２２によって得られる受信信号の強度を確保する上でより一層有利となり、テレビジョン放送の放送画面をより鮮明に鑑賞する上でより一層有利となる。 As described above, according to the present embodiment, the antenna 22 is supported by using the antenna mounting base 10, so that the antenna 22 is used as an antenna in order to efficiently receive radio waves of television broadcasting. Of course, it is possible to easily place the antenna 22 with the mounting base 10 near the window of the room, or to direct the direction of the antenna 22 in the traveling direction of the radio wave, and it is reflected by the reflector 16 disposed behind the antenna 22. The reflected radio wave is reflected and guided to the antenna 22, thereby improving the gain of the antenna 22, which is advantageous in securing the strength of the received signal obtained by the antenna 22, and can be used for a television broadcast screen. It is advantageous for viewing more clearly.
In the present embodiment, the distance ΔL formed between the reflecting plate 16 and the antenna 22 is about a quarter of the wavelength λ of the radio wave to be received. Therefore, the gain of the antenna 22 can be further improved, which is more advantageous in securing the strength of the received signal obtained by the antenna 22, and the television This is even more advantageous in clearly viewing the broadcast screen of the broadcast.

また、本実施の形態では、連結部材３２の球状部３２０２が保持部材３０の球面状の凹部３００２、３０１０で挟持されているため、アンテナ支持部１８によって支持されているアンテナ２２を任意の方向に傾動させてアンテナ２２の前面２２０２（放射面）を電波の進行方向に向けることができるため、電波を効率よくアンテナ２２に導くことができ、アンテナ２２の利得を向上させる上で有利となり、テレビジョン放送の放送画面をより鮮明に鑑賞する上で有利となる。
また、連結部材３２の球状部３２０２が保持部材３０の球面軸受け３０Ｃに回転可能に支持されているため、アンテナ２２を、球状部３２０２の中心を通り、かつ、アンテナ２２が指向する方向（アンテナ２２の前面２２０２（放射面）と直交する方向）に延在する軸線回りに回転させることができる。
そのため、テレビジョン放送の電波が水平偏波で送信される場合と、垂直偏波で送信される場合とに応じて、アンテナ２２の姿勢を軸線回りに９０度回転させることで、電波を効率よくアンテナ２２に導くことができ、アンテナ２２の利得を向上させる上で有利となり、テレビジョン放送の放送画面をより鮮明に鑑賞する上で有利となる。 In the present embodiment, since the spherical portion 3202 of the connecting member 32 is sandwiched between the spherical concave portions 3002 and 3010 of the holding member 30, the antenna 22 supported by the antenna support portion 18 can be moved in an arbitrary direction. Since the front surface 2202 (radiation surface) of the antenna 22 can be tilted to be directed in the traveling direction of the radio wave, the radio wave can be efficiently guided to the antenna 22, which is advantageous in improving the gain of the antenna 22, and television. This is advantageous for more clearly viewing the broadcast screen of the broadcast.
Further, since the spherical portion 3202 of the connecting member 32 is rotatably supported by the spherical bearing 30C of the holding member 30, the antenna 22 passes through the center of the spherical portion 3202 and the direction in which the antenna 22 is directed (antenna 22 Can be rotated around an axis extending in a direction perpendicular to the front surface 2202 (radiation surface) of the lens.
Therefore, the radio wave can be efficiently transmitted by rotating the attitude of the antenna 22 by 90 degrees around the axis depending on whether the radio wave of the television broadcast is transmitted with horizontal polarization or when transmitted with vertical polarization. This can be guided to the antenna 22, which is advantageous in improving the gain of the antenna 22, and advantageous in clearly viewing the broadcast screen of the television broadcast.

なお、本実施の形態では、アンテナ２２が矩形板状である場合について説明したが、アンテナ２２の形状は例えば円板状であってもよく、従来公知のさまざまな形状が採用可能である。
また、本実施の形態では、アンテナ２２の前面２２０２（放射面）が平面上を延在している場合について説明したが、アンテナ２２の前面２２０２（放射面）は曲率が大きな円筒面、球面あるいは湾曲面を呈していてもよい。言い換えると、本発明において「板状」アンテナの「板状」とは、平面、曲面を含むものである。
しかしながら、本実施の形態のようにアンテナ２２の前面２２０２（放射面）が平面上を延在していると、電波の進行方向から見た前面２２０２（放射面）の投影面積を大きく確保でき、アンテナ２２の利得を向上させる上で有利となる。 Although the case where the antenna 22 has a rectangular plate shape has been described in the present embodiment, the shape of the antenna 22 may be, for example, a disk shape, and various conventionally known shapes can be employed.
In this embodiment, the case where the front surface 2202 (radiation surface) of the antenna 22 extends on a plane has been described. However, the front surface 2202 (radiation surface) of the antenna 22 has a large curvature, a spherical surface, or a spherical surface. It may have a curved surface. In other words, the “plate” of the “plate” antenna in the present invention includes a plane and a curved surface.
However, when the front surface 2202 (radiation surface) of the antenna 22 extends on a plane as in the present embodiment, a large projected area of the front surface 2202 (radiation surface) viewed from the traveling direction of the radio wave can be secured, This is advantageous in improving the gain of the antenna 22.

（第２の実施の形態）
次に第２の実施の形態について説明する。
図９は第２の実施の形態のアンテナ装着用置き台１０にアンテナ２２が装着された状態を示す側面図、図１０（Ａ）はアンテナ支持部１８を除いたアンテナ装着用置き台１０の正面図、（Ｂ）は同平面図、（Ｃ）は同側面図である。
第２の実施の形態が第１の実施の形態と異なるのは本体板部１４と反射板１６の大きさであり、その他の構成は第１の実施の形態と同様であるため、第１の実施の形態と同様な箇所には図面に同一の符号を付してその説明を省略する。
第２の実施の形態では、図９、図１０に示すように、反射板１６の面積はアンテナ２２の面積（放射面）の４／５以上１以下である。また、本体板部１４も反射板１６の大きさに対応した大きさで形成されている。
第２の実施の形態によれば、第１の実施の形態と同様の作用効果が奏されることは無論のこと、反射板１６の面積が第１の実施の形態における反射板１６の面積よりも大きく確保されているので、反射板１６によってより多くの電波を反射してアンテナ２２に導くことができ、アンテナ２２の利得を向上させる上でより有利となる。 (Second Embodiment)
Next, a second embodiment will be described.
FIG. 9 is a side view showing a state where the antenna 22 is mounted on the antenna mounting base 10 of the second embodiment, and FIG. 10A is a front view of the antenna mounting base 10 excluding the antenna support 18. FIG. 4B is a plan view of the same, and FIG.
The second embodiment is different from the first embodiment in the size of the main body plate portion 14 and the reflecting plate 16, and the other configurations are the same as those in the first embodiment. The same portions as those in the embodiment are denoted by the same reference numerals in the drawings, and the description thereof is omitted.
In the second embodiment, as shown in FIGS. 9 and 10, the area of the reflector 16 is 4/5 or more and 1 or less of the area (radiation surface) of the antenna 22. The main body plate portion 14 is also formed in a size corresponding to the size of the reflecting plate 16.
According to the second embodiment, it is needless to say that the same effect as that of the first embodiment is achieved, and the area of the reflector 16 is larger than the area of the reflector 16 in the first embodiment. Therefore, a larger amount of radio waves can be reflected by the reflecting plate 16 and guided to the antenna 22, which is more advantageous for improving the gain of the antenna 22.

次に、アンテナ２２の利得について第１、第２の実施の形態と比較例とを比較して説明する。
図１１はアンテナ２２の利得をシミュレーションによって求めた結果を示す特性図である。図１１において横軸は電波の周波数ｆ（ＭＨｚ）を示し、縦軸は利得Ｇ（ｄＢｉ）を示す。なお、反射板１６とアンテナ２２との間隔ΔＬは電波の波長λの１／４としている。
符号Ｇ０は比較例として反射板１６を用いずアンテナ２２単体の利得を示し、符号Ｇ１は第１の実施の形態のアンテナ装着用置き台１０を用いてアンテナ２２を支持した場合の利得を示し、符号Ｇ２は第２の実施の形態のアンテナ装着用置き台１０を用いてアンテナ２２を支持した場合の利得を示している。
このように、反射板１６を使用しない場合の利得に比較して反射板１６を設けた場合の利得が大きく、また、反射板１６の面積が大きいほど利得を確保する上で有利であり、テレビジョン放送の放送画面をより鮮明に鑑賞する上で有利となる。 Next, the gain of the antenna 22 will be described by comparing the first and second embodiments with a comparative example.
FIG. 11 is a characteristic diagram showing the result of obtaining the gain of the antenna 22 by simulation. In FIG. 11, the horizontal axis indicates the frequency f (MHz) of the radio wave, and the vertical axis indicates the gain G (dBi). The interval ΔL between the reflector 16 and the antenna 22 is set to ¼ of the wavelength λ of the radio wave.
Reference G0 represents the gain of the antenna 22 alone without using the reflector 16 as a comparative example, and G1 represents the gain when the antenna 22 is supported using the antenna mounting base 10 of the first embodiment. Reference symbol G2 represents a gain when the antenna 22 is supported by using the antenna mounting base 10 of the second embodiment.
Thus, the gain when the reflector 16 is provided is larger than the gain when the reflector 16 is not used, and the larger the area of the reflector 16 is, the more advantageous it is to secure the gain. This is advantageous for more clearly viewing the broadcast screen of John Broadcasting.

第１の実施の形態のアンテナ装着用置き台１０にアンテナ２２が装着された状態を示す側面図である。It is a side view which shows the state by which the antenna 22 was mounted | worn with the antenna mounting base 10 of 1st Embodiment. （Ａ）はアンテナ支持部１８を除いたアンテナ装着用置き台１０の正面図、（Ｂ）はアンテナ装着用置き台１０の平面図、（Ｃ）はアンテナ装着用置き台１０の側面図である。(A) is a front view of the antenna mounting base 10 excluding the antenna support 18, (B) is a plan view of the antenna mounting base 10, and (C) is a side view of the antenna mounting base 10. . （Ａ）はスライド部材２８の平面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は（Ａ）のＣ矢視図である。(A) is a top view of the slide member 28, (B) is a B arrow view of (A), (C) is a C arrow view of (A). 保持部材３０の側面図である。4 is a side view of the holding member 30. FIG. （Ａ）は保持部材３０の本体３０Ａの側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は（Ａ）のＣ矢視図である。(A) is a side view of the main body 30A of the holding member 30, (B) is a view as seen from the arrow B in (A), and (C) is a view as seen from the arrow C in (A). （Ａ）は保持部材３０の押さえ部材３０Ｂの側面図、（Ｂ）は（Ａ）のＢ矢視図である。(A) is a side view of the pressing member 30B of the holding member 30, and (B) is a view taken in the direction of arrow B in (A). （Ａ）はアンテナ支持板３４の平面図、（Ｂ）は（Ａ）のＢ矢視図である。(A) is a top view of the antenna support plate 34, (B) is a B arrow view of (A). （Ａ）はアンテナ２２の平面図、（Ｂ）は（Ａ）のＢ矢視図である。(A) is a top view of the antenna 22, (B) is a B arrow view of (A). 第２の実施の形態のアンテナ装着用置き台１０にアンテナ２２が装着された状態を示す側面図である。It is a side view which shows the state in which the antenna 22 was mounted | worn with the antenna mounting base 10 of 2nd Embodiment. （Ａ）はアンテナ支持部１８を除いたアンテナ装着用置き台１０の正面図、（Ｂ）はアンテナ装着用置き台１０の平面図、（Ｃ）はアンテナ装着用置き台１０の側面図である。(A) is a front view of the antenna mounting base 10 excluding the antenna support 18, (B) is a plan view of the antenna mounting base 10, and (C) is a side view of the antenna mounting base 10. . アンテナ２２の利得をシミュレーションによって求めた結果を示す特性図である。It is a characteristic view which shows the result of having calculated | required the gain of the antenna 22 by simulation.

符号の説明Explanation of symbols

１０……アンテナ装着用置き台、１２……基台、１４……本体板部、１６……反射板、１８……アンテナ支持部。   DESCRIPTION OF SYMBOLS 10 ... Antenna mounting stand, 12 ... Base, 14 ... Main plate, 16 ... Reflector, 18 ... Antenna support.

Claims (4)

被載置面に載置される基台と、
前記基台から立設され電波が通過する非導電材料で形成された本体板部と、
前記本体板部に設けられ電波を反射する材料で形成された反射板と、
前記本体板部に設けられ前記本体板部の前方に離れた箇所でテレビジョン放送用の電波を受信する板状アンテナを支持するアンテナ支持部と、
を備えることを特徴とするアンテナ装着用置き台。 A base mounted on the mounting surface;
A main body plate portion standing from the base and formed of a nonconductive material through which radio waves pass;
A reflector formed of a material that is provided in the main body plate portion and reflects radio waves;
An antenna support that supports a plate antenna that is provided in the main body plate portion and receives a radio wave for television broadcasting at a position away from the front of the main body plate portion;
A stand for mounting an antenna, comprising: 前記反射板は前記本体板部の内部または後面に取着され、
前記アンテナ支持部は、前記反射板と前記板状アンテナとの間の間隔をΔＬとし、受信しようとする電波の波長をλとした場合に、前記板状アンテナをΔＬ≒λ／４の関係を満たす箇所に位置させる、
ことを特徴とする請求項１記載のアンテナ装着用置き台。 The reflector is attached to the inside or the rear surface of the main body plate part,
The antenna support unit has a relationship of ΔL≈λ / 4 when ΔL is an interval between the reflector and the plate antenna and λ is a wavelength of a radio wave to be received. To be located at the filling point,
The antenna mounting stand according to claim 1. 前記アンテナ支持部は、前記本体板部の前面と前記板状アンテナとを連結する連結部とを含んで構成され、
前記連結部は球面軸受を有し、
前記アンテナ支持部は、前記連結部により前記球面軸受の中心を中心として前記板状アンテナを傾動可能にかつ旋回可能に支持する、
ことを特徴とする請求項１記載のアンテナ装着用置き台。 The antenna support portion includes a connecting portion that connects the front surface of the main body plate portion and the plate antenna,
The connecting portion has a spherical bearing;
The antenna support portion supports the plate antenna so as to be tiltable and turnable around the center of the spherical bearing by the connecting portion.
The antenna mounting stand according to claim 1. 前記アンテナ支持部は、前記本体板部の前面に上下に移動可能に結合されたスライド部材と、前記本体板部の前面に対する前記スライド部材の下限位置を規制し前記下限位置で前記スライド部材を係止する係止部と、前記スライド部材と前記板状アンテナとを連結する連結部とを含んで構成されている、
ことを特徴とする請求項１記載のアンテナ装着用置き台。 The antenna support portion is configured to be coupled to the front surface of the main body plate portion so as to be movable up and down, and to restrict the lower limit position of the slide member with respect to the front surface of the main body plate portion and to engage the slide member at the lower limit position. It is configured to include a locking portion that stops, and a connecting portion that connects the slide member and the plate antenna.
The antenna mounting stand according to claim 1.
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Publication number Priority date Publication date Assignee Title
JP2010130344A (en) * 2008-11-27 2010-06-10 Dx Antenna Co Ltd Antenna stand
WO2011005429A1 (en) * 2009-06-23 2011-01-13 Sony Corporation Steering mirror for tv receiving high frequency wireless video
US8264548B2 (en) 2009-06-23 2012-09-11 Sony Corporation Steering mirror for TV receiving high frequency wireless video

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