1243513 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種室内UHF天線裝置，尤指一種供數 位電視使用的室内UHF天線裝置，具有容易調整不同接收 角度而適合接收不同方向極化波的無線訊號。 【先前技術】 請參看第六圖所示，其所顯示者係為一種常見應用在 接收數位電視的數位天線（5 );其係具有一底座（5 1 ) 以及一個由該底座（5 1 )所支撐的桿體（5 3 )(天線）； 該數位天線的使用方式，係將其底座係供連接至電視纜線 的接地端’而桿體則連接至該纜線的訊號輸入端。 由圖中可知，此一數位天線概以垂直於水平面的方向 接收無線訊號，而目前數位電視發射台概包含有水平極化 波、垂直極化波等型式，故若要正常的接收到不同發射台 的無線訶號，則需要調整天線的接收角度，以此一天線的 結構來說，可接收較清晰的垂直極化波訊號，若是要接收 較為清楚的水平極化波訊號時，則使用者必須要將整座的 天線予以橫放。惟，此類的天線體積通常是相當的龐大， 而且並無設計有任何方便使用者調整角度的結構，因此並 不適合使用者隨意調整天線的角度。 【發明内容】 本發明是有關於一種用以接收數位電視發射台所發出 無線訊號的天線，其具有扁形化的結構，不但容易置放且 可供使用者方使依照不同發射台所發射水平極化波或是垂 1243513 直極化波調整其接收角度。 欲達上述目的所使用的主要技術手段係令該天線裝置 包含有： 電路板，係主要包含有訊號濾波器、放大器、輸出 訊膽器等電路，以及一供同軸電瘦連接的連接器； 主桿开y天線，係以水平方向銲接於該電路板上，並 與其上的訊號饋送端連接，而與電路板平行；及 一辅助桿形天線，係以水平方向銲接於該電路板上， 並連接其上的接地端，且與主桿形天線保持一特定波長距 離，其係料電路板電路處理主桿形天線接收訊號時的參 考訊號，藉以避免受週遭障礙物接收到反射或折射的無線 訊號，造成重覆接收相同無線訊號所導致接收訊號不清晰 之情事； 上述天線裝置由於電路板與主桿形天線及輔助桿形天 線係以平行方向結合，故整體天線裝置得以扁形化，不論 就擺設空間或是調整接收角度來說，都具有相當高的調整 彈性。 又，本發明次一目的係提供一種易調整接收角度的天 線裝置’即上述電路板、主桿形天線及輔助桿形天線因為 扁形化的設計，故可裝設於一類似相框的盒體内，該盒體 後端樞設有一可旋轉的支腳，調整該支腳可令整個盒體呈 九十度的角度轉動，如此，設置於盒體内的主桿形天線及 輔助才干形天線將可猎由盒體擺设的角度，而切換接收水平 極化波或垂直極化波。 1243513 為使在本技術領域具有通常知識者瞭解本發明之目 的、、特徵及功效，茲藉由下述具體實施例，並配合所附之 圖式，·詳加說明如后。 【實施方式】 本發明係設計一種結構扁形化且用以接收數位電視發 射台的天線裝置（10)，首先請參閱第一圖及第四圖所 不，係為本發明一較佳實施例，其包含有·· “電路板（1 1)，係主要包含有一數位電視訊號處 里電路（圖中未示）及一供同軸電纜連接的連接器（1 〇 )； 主才干形天線（1 2 )，係銲接於該電路板（1 〇 ) 上’且連接其上的訊號饋送端（圖中未示），並且與電路 板（11)平行；及 一輔助桿形天線（i 3 )，係銲接於該電路板（3 〇 ) 上且連接其上的接地端（圖中未示），並與主桿形天線 (1 2 )平行且保持一特定波長距離，其係作為數位電視 訊號處理電路處理主桿形天線（i 2 )接收訊號時的參考 汛號，藉以避免受週遭障礙物接收到反射或折射的無線訊 號，造成重覆接收相同無線訊號，導致接收訊號不清晰。 請配合參閱第二圖及第三圖所示，係為上述電路板上 所設數位電視訊號處理電路（3 〇 )的一較佳實施例，由 於本發明天線裝置（1 Q )係用以接收數位電視訊號，因 此，對於必需處理雜訊訊號，以得到真正的數位訊號，保 持電視吼號的清晰度，是以，本發明的數位電視訊號處理 1243513 電路（3 Ο )係包含有： 一訊號濾波器（3 1 )，其訊號饋送端係連接至主桿 形天線（1 2 )，用以擷取特定頻段的無線訊號，可接收 5 0 Μ Η Z〜8 7 0 Μ Η Z頻段的無線訊號； 一高抗雜訊放大器（3 2 )，係連接至該訊號濾波器 (3 1 )的輸出端，以將無線訊號中的雜訊予以濾除後再 行放大後輸出； 一渡波暨電源供應電路（3 3 )，係設於該高抗雜訊 放大器（3 2 )的輸出端上，以對放大後的無線訊號再次 濾、波，以擷取UHF頻段（ 470〜870ΜΗΖ)的數位電視訊號， 而其輸出端則連接至該電路板（1 〇 )的連接器（1 1 〇 )， 由於連接器（1 1 〇 )透過同軸纜線（4 〇 )與電視機（4 1 )連接後’會獲得一直流電源，加上該濾波暨電源供應 電路（3 3 )主要由電感及電容組成，因此，當其輸出端 連接至該連接器（1 1 0 )時，直流電源會循著電感線路 而供應給高抗雜訊放大器（因為電感在直流電源下呈短路 狀態）；及 電源穩壓電路（3 4 )’其輸入端係連接一直流電 源，將該輸入直流電源透過一穩壓器（ϋ2 )後予以輸出給 該高抗雜訊放大器（3 2 )。 仍請繼續參閱第一圖所示，為使上述天線裝置（丄〇 ) 更方便使用者調整角度天線接收角度，本發明可將該天線 裝置（10)容置於一盒體（20)内，該盒體（2〇) 係包含有： !243513 一底座（21) ’其斷面呈一u字形，其中凹陷底面 (2 1 1 )設置有複數向上的支座（2 1 5 )，以支撐該 主桿形天線（1 2 )及輔助桿形天線（χ 3 )，而電路板 (1 1 )則同樣容置於該底座（2丄）内；又，該底座（2 1 )四側邊上端面的内緣位置形成有一階梯（2丄3 )， 再於階梯（2 1 3 )上形成有複數結合槽（2丄7 ); 一盍體（2 3 )，其底面相對該底座（2 1 )側邊階 腳（2213)娜槽向下延伸有形成有結合 ，令其置於該底座（2 1 )的階梯r 2 ] s ) 位置時’與該結合槽（2 1 7 )卡合定位；及 卜罩（25)，係再蓋合於該蓋體（23)上，盆 :面在覆罩至該外蓋（2 3 )後，是和該底座（2丄）的 一面平齊。 本發明天線裝置（i 〇 )與盒體 =天線(U)及輔助桿形天線(13)係由各 =)(=，以固設在盒座(2。）内。爾後，(： 應的結合槽二t腳（2 31)則是分別地插入其所對 該底座（2、17)之内，以將該蓋體（23)結合在 該蓋體（2 3 °之後’再將該外罩（2 5)罩覆在 作將該外罩（上’並利用諸如是螺絲、螺桿等固定元 (^)固設在該蓋體（23)之上，使其與 一 V Z丄）穩固地結合在一起。 在與:五圖A、6所示，天線裝置(1Q) 〇 )…合後，在該底座（；L丄）的底面處樞 1243513 設有一支腳（2 1 9 )，藉由該支腳（2 1 g )的旋轉動 作’令盒體呈水平或垂直的置放角度，當呈現水平擺放角 度時，即可接收垂直極化波（Sv)的無線訊號，反之，則 可接收水平極化波（sH)的無線訊號，如此，容置於盒體 (2 0 )内的天線裝置（i 〇 )即可調整接收水平極化波 或疋垂直極化波的發射台訊號。 由上述說明可知，本發明藉由主桿形天線及輔助桿形 天線與電路板的水平連接’令整體天線裝置予以扁形化， 不佔空間，而且能容輕易地調整天線裝置的接收角度，以 配合不同發射台所發出的水平極化波或是垂直極化波的無 線數位電視訊號，本發明亦可接收圓形極化波，惟並接數 訊號強度相較於接收水平或垂直極化波為弱7〇%)。 又’本創作可配合扁形盒體的設計，提供使用者方便調整 天線裝置的置放角度。 【圖式簡單說明】 第一圖：係本發明-較佳實施例的立體分解圖。 ::圖：係本發明數位電視訊號處理電路的方塊圖。 弟二圖·係第二圖的詳細電路圖。 二係：發明配合一同軸電境的立體外觀圖； 圖。圖A、B:係本發明呈不同擺放角度的動作示意 第六圖：係一種既有天線的立體圖。 【主要元件符號說明】 (1 0)天線裝置 (11)電路板 1243513 (1 1 Ο )連接器 （1 2 )主桿形天線 (1 3 )輔助桿形天線（2 0 )盒體 (2 1 )底座 (2 1 1 )底面 (213)階梯 (215)支座 (217)結合槽 (219)支腳 (2 3 )蓋體 (2 5 )外罩 (2 3 1 )結合腳 (3 0 )數位電視訊號處理電路 (3 1 )訊號濾波器 （3 2 )高抗雜訊放大器 (3 3 )濾波暨電源供應電路 (3 4 )電源穩壓電路（4 0 )同軸電纜線 (4 1 )電視機 (5 0 )數位天線 (5 1 )底座 (5 3 )桿體1243513 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to an indoor UHF antenna device, especially an indoor UHF antenna device for digital television, which has the advantages of being easy to adjust different receiving angles and suitable for receiving polarized waves in different directions. Wireless signal. [Prior art] Please refer to the sixth figure, which shows a digital antenna (5) commonly used in receiving digital television; it has a base (5 1) and a base (5 1). Supported mast body (5 3) (antenna); The digital antenna is used in a way that its base is connected to the ground end of a television cable 'and the mast body is connected to the signal input end of the cable. As can be seen from the figure, this digital antenna receives wireless signals in a direction perpendicular to the horizontal plane. At present, digital TV transmitters include horizontally polarized waves and vertically polarized waves. Therefore, if different transmissions are to be received normally, The wireless signal of the station needs to adjust the receiving angle of the antenna. According to the structure of this antenna, it can receive clearer vertically polarized wave signals. If it is necessary to receive clearer horizontally polarized wave signals, the user The entire antenna must be placed horizontally. However, such antennas are usually quite bulky, and they are not designed with any structure that is convenient for the user to adjust the angle, so it is not suitable for the user to adjust the angle of the antenna at will. [Summary of the Invention] The present invention relates to an antenna for receiving wireless signals from a digital television transmitting station. The antenna has a flattened structure, which is not only easy to place but also allows users to use horizontally polarized waves transmitted by different transmitting stations. Or vertical 1243513 straight polarized wave to adjust its receiving angle. The main technical means to achieve the above purpose is to make the antenna device include: a circuit board, which mainly includes circuits such as signal filters, amplifiers, output amplifiers, and a connector for coaxial electrical thin connection; The rod-opened y antenna is soldered to the circuit board in a horizontal direction and connected to the signal feeding end thereon, and is parallel to the circuit board; and an auxiliary rod antenna is soldered to the circuit board in a horizontal direction, and It is connected to the ground terminal and maintains a specific wavelength distance from the main rod antenna. Its circuit board circuit processes the reference signal when the main rod antenna receives the signal, so as to avoid being reflected or refracted by the surrounding obstacles. Signal, causing repeated reception of the same wireless signal, resulting in unclear reception; the above-mentioned antenna device is connected in parallel with the main rod antenna and the auxiliary rod antenna, so the overall antenna device is flattened, regardless of In terms of setting space or adjusting the receiving angle, both have a very high adjustment flexibility. In addition, a secondary object of the present invention is to provide an antenna device that is easy to adjust the receiving angle. The rear end of the box body is pivotally provided with a rotatable foot. Adjusting the foot can rotate the entire box body at an angle of 90 degrees. In this way, the main rod antenna and the auxiliary talent antenna provided in the box body will be rotated. You can hunt for the angle set by the box body, and switch to receive horizontally polarized or vertically polarized waves. 1243513 In order to enable those having ordinary knowledge in the technical field to understand the objectives, features, and functions of the present invention, the following specific embodiments are used in conjunction with the accompanying drawings to explain in detail later. [Embodiment] The present invention is to design an antenna device (10) with a flat structure and used to receive a digital television transmitting station. First, please refer to the first and fourth figures, which is a preferred embodiment of the present invention. It contains "..." circuit board (1 1), which mainly contains a digital TV signal circuit (not shown) and a connector (10) for coaxial cable connection; a main-capacity antenna (1 2 ), Which is soldered on the circuit board (10) and connected to the signal feeding end (not shown), and is parallel to the circuit board (11); and an auxiliary rod antenna (i 3), A ground terminal (not shown) soldered on the circuit board (30) and connected to it, parallel to the main rod antenna (1 2) and maintaining a specific wavelength distance, which is used as a digital television signal processing circuit Handle the reference flood number when the main rod antenna (i 2) receives the signal, in order to avoid receiving the reflected or refracted wireless signal from the surrounding obstacles, causing the same wireless signal to be received repeatedly, resulting in unclear reception signals. Second and third pictures Is a preferred embodiment of the digital television signal processing circuit (30) provided on the above circuit board. Since the antenna device (1Q) of the present invention is used to receive digital television signals, it is necessary to process noise signals. In order to obtain a real digital signal and maintain the clarity of the television roar, the digital television signal processing 1243513 circuit (3 0) of the present invention includes: a signal filter (3 1) whose signal feeding end system Connected to the main rod antenna (1 2) to capture wireless signals in a specific frequency band, which can receive wireless signals in the 50 MHz Η Z ~ 8 7 0 Μ Η Z frequency band; a high-noise noise amplifier (3 2) Is connected to the output end of the signal filter (3 1) to filter out the noise in the wireless signal and then amplified and output; a wave and power supply circuit (3 3) is installed in the high The output of the anti-noise amplifier (3 2) is used to filter and wave the amplified wireless signal again to capture digital TV signals in the UHF band (470 ~ 870MHz), and its output is connected to the circuit board (1 〇) connector (1 1 〇) Because the connector (1 0) is connected to the television (4 1) through the coaxial cable (4 0), the DC power will be obtained. In addition, the filtering and power supply circuit (3 3) is mainly composed of inductors and capacitors. Composition, so when its output is connected to this connector (110), DC power will be supplied to the high noise immunity amplifier along the inductive line (because the inductor is short-circuited under DC power); and the power supply is stable The voltage input circuit (3 4) 'has an input terminal connected to a DC power supply, and passes the input DC power through a voltage regulator (ϋ2) and outputs it to the high-impedance noise amplifier (3 2). Still please refer to the first As shown in the figure, in order to make the above antenna device (丄 〇) more convenient for the user to adjust the angle antenna receiving angle, the present invention can accommodate the antenna device (10) in a box body (20), the box body (20) ) The system includes:! 243513 A base (21) 'The cross-section is U-shaped, and the recessed bottom surface (2 1 1) is provided with a plurality of upwardly-supporting supports (2 1 5) to support the main rod antenna ( 1 2) and auxiliary rod antenna (χ 3), while the circuit board (1 1) is the same It is accommodated in the base (2 丄); in addition, a step (2 丄 3) is formed on the inner edges of the upper end faces of the four sides of the base (2 1), and a plurality of combinations are formed on the step (2 1 3) A groove (2 丄 7); a carcass (2 3), the bottom surface of which is opposite to the side of the base (2 1); ) 'S step r 2] s) when it is in position, it engages with the combining groove (2 1 7); and the cover (25) is closed on the cover (23), and the basin is covered with the cover After reaching the outer cover (2 3), it is flush with the side of the base (2 丄). The antenna device (i) and the box body = antenna (U) and the auxiliary rod antenna (13) of the present invention are fixed in the box base (2.) by each =) (=. Then, (: should be The two t feet (2 31) of the coupling groove are respectively inserted into the base (2, 17) to which the cover body (23) is combined with the cover body (after 2 3 °), and then the outer cover (2 5) Covering the cover (upper ') and using a fixing element (^) such as a screw or a screw to fix the cover (23) on the cover (23) so that it is firmly combined with a VZ 丄Together with: as shown in Figures A and 6, the antenna device (1Q) ○) ..., a foot (2 1 9) is provided at the bottom of the base (; L 丄) at 1243513, by which The rotation action of the feet (2 1 g) makes the box body be placed horizontally or vertically. When it is displayed horizontally, it can receive the wireless signal of vertical polarized wave (Sv), otherwise it can receive the wireless signal. A horizontally polarized wave (sH) wireless signal. In this way, the antenna device (i 〇) housed in the box body (20) can adjust the signal of the transmitting station that receives the horizontally polarized wave or the vertically polarized wave. The above description It is known that the present invention uses the horizontal connection of the main rod antenna and the auxiliary rod antenna to the circuit board to flatten the overall antenna device, occupying no space, and can easily adjust the receiving angle of the antenna device to match different transmissions. The present invention can also receive a circularly polarized wave of a horizontal digitally or vertically polarized wireless digital television signal, but the strength of the parallel signal is weaker than that of receiving a horizontally or vertically polarized wave. %). Also, this creation can be matched with the design of the flat box to provide the user with the convenience of adjusting the placement angle of the antenna device. [Brief description of the drawings] The first figure is an exploded perspective view of the preferred embodiment of the present invention. :: Figure: is a block diagram of the digital television signal processing circuit of the present invention. Figure 2 is a detailed circuit diagram of the second figure. Series 2: The three-dimensional appearance of the invention with a coaxial electrical environment; Figures. Figures A and B: The sixth diagram of the present invention showing the action of different placement angles is a perspective view of an existing antenna. [Description of Symbols of Main Components] (1 0) Antenna Device (11) Circuit Board 1243513 (1 1 Ο) Connector (1 2 ) Rod antenna (1 3) Auxiliary rod antenna (2 0) Box body (2 1) Base (2 1 1) Bottom surface (213) Step (215) Support (217) Combining groove (219) Feet (2 3 ) Cover (2 5) Cover (2 3 1) Combining feet (3 0) Digital TV signal processing circuit (3 1) Signal filter (3 2) High anti-noise amplifier (3 3) Filtering and power supply circuit ( 3 4) Power supply voltage stabilization circuit (40) Coaxial cable (4 1) TV (50) Digital antenna (5 1) Base (5 3) rod body