Digital television antenna
A technology for digital TV antennas and antennas, applied to antennas, loop antennas, antenna supports/mounting devices, etc., can solve the problems of increased manufacturing costs, production yield control, large space occupation, and easy bending and deformation. The effect of shortening the apparent length
Inactive Publication Date: 2007-06-13
GOLDEN BRIDGE ELECTECH INC
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Problems solved by technology
[0003] The existing digital TV antenna is usually formed by a metal wire. Due to the needs of the antenna to receive the signal wavelength, its length must reach a certain length, so its length is long, it takes up a lot of space, and it is easy to bend and deform.
On the other hand, because the existing digital TV antenna is made of a single metal wire, it is not easy to adjust its impedance value in antenna design to achieve the best matching value for receiving TV signals, although additional components such as capacitors and inductors are added to adjust The impedance value of the antenna, but because additional components are added, the position of these components such as capacitors and inductors must be considered, thus increasing manufacturing costs and production yield control issues
Method used
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[0016] Please refer to FIG. 1 , the digital TV antenna 10 of the present invention includes a substrate 1 , which can be a printed circuit board, on which a metal transmission line is plated with a printed circuit to form an antenna area 2 . In this embodiment, the antenna is designed for digital TV signals with a frequency of 533MHz to 599MHz. The aforementioned substrate 1 can be made of FR4 glass fiber double-sided material, which is not only cheap but also easy to obtain. It is very convenient to make the circuit.
[0017] As shown in FIG. 1 , the antenna area 2 plated on one side of the substrate 1 is formed on the substrate 1 by a printed circuit of metal material, and the metal material can be copper or other metals with good conductivity. The antenna area 2 includes a rectangular strip-shaped starting area 21 extending forward from the center of the end of the substrate 1 . Extending forward from the starting area 21 , a rectangular frame-shaped capacitor area 22 is f...
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The digital TV antenna includes antenna region, and grounding region formed on base plate through plated circuit form by using principle of transmission line design. The antenna region includes inductance area with inductance value, and capacitance area with capacitance value. Moreover, antenna region and grounding region forms a capacitance area of having capacitance value. Thus, impedance value of entire antenna obtains optimal match to digital TV signal received.
Description
【Technical field】 [0001] The invention relates to a digital TV antenna, especially a digital TV antenna arranged on a substrate in the form of a printed circuit. 【Background technique】 [0002] Nowadays, with the development of digital electronic technology, its application fields are also expanding, such as in-vehicle systems and traditional household appliances. In particular, digital TV is more and more accepted by consumers because of its advantages such as high definition. [0003] The existing digital TV antenna is usually formed by a metal wire. Due to the needs of the antenna to receive the signal wavelength, its length must reach a certain length. On the other hand, because the existing digital TV antenna is made of a single metal wire, it is not easy to adjust its impedance value in antenna design to achieve the best matching value for receiving TV signals, although additional components such as capacitors and inductors are added to adjust The impedance value of ...
Claims
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Login to View More IPC IPC(8): H01Q1/38H01Q7/00H01Q13/00H01Q1/42H01Q1/12
Inventor 季向容
Owner GOLDEN BRIDGE ELECTECH INC