1. 數位電視與廣播天線設計期末報告 題目 : 廣播與電視天線接收器 學號 :M98S0207 姓名 : 李季衡

2. 摘要 專利介紹 參考文獻

3. 摘要 A slim television broadcast receiver employing antennas in which a waveguide is formed by a metallic plate and a copper foil on a printed circuit board. An insulating magnetic element is loaded so as to block one of a pair of aperture planes of the waveguide, and the aperture area is enlarged by beveling the other aperture plane. Tuning elements are provided on opposed sides with respect to the center part of the other aperture, which antennas are placed on opposed side ends of the slim television broadcast receiver, thereby performing electronic tuning and phase synthesis diversity reception. 出處 :United States Patent N0:US7,034,766B2

4. FIG. 1 is a diagram illustrating a digital television broadcast receiving antenna according to a first embodiment of the present invention 出處 :United States Patent N0:US7,034,766B2

5. In FIG. 1, a digital television broadcast receiving antenna 100 includes a waveguide 104 that is formed by a metallic plate 101 and a copper foil 103 on a printed circuit board 102. A main aperture plane 107 is provided at the front of the waveguide 104, and a rear aperture plane 105 is provided at the back of the waveguide 104 出處 :United States Patent N0:US7,034,766B2

6. As shown in FIG. 2, an insulating magnetic element 106 is loaded in the waveguide 104, to block the rear aperture 105 which is selected from the main aperture 107 and the rear aperture 105 出處 :United States Patent N0:US7,034,766B2

7. . In FIG. 2, reference numeral 116 denotes an arrow indicating a direction that is parallel to the surface of the printed circuit board, and numeral 117 denotes an arrow indicating a direction that is perpendicular to the surface of the printed circuit board. 出處 :United States Patent N0:US7,034,766B2

8. FIG. 3 is a diagram illustrating magnetic currents and electric fields which are generated in the digital television broadcast receiving antenna according to the first embodiment. 出處 :United States Patent N0:US7,034,766B2

9. FIG. is a diagram illustrating a digital television broadcast receiver according to a second embodiment of the present invention 出處 :United States Patent N0:US7,034,766B2

10. The present invention is useful in realizing a slim digital television broadcast receiver which enables to provide digital television broadcasting in a free position indoors, without the need of an external antenna or an indoor antenna jutting outside, which is connected via a cable, and an external device for receiving broadcast waves and relaying or retransmitting the waves to the receiver, at low cost. 出處 :United States Patent N0:US7,034,766B2

11. 參考文獻 專利號碼 :7,034,766 發明人 : Kirino; Hideki (Ayauta-gun, JP), Ninomiya; Kunio (Niihama, JP) 專利時間 : September 1, 2004 專利名稱 : Broadcast receiving antenna and television broadcast receiver