Television antenna, television antenna system and method for receiving television signals
A TV signal and TV antenna technology, which is applied to TV system components, color TV components, antennas, etc., can solve problems such as reducing impedance, unbalanced, and unsatisfactory TV pictures
Active Publication Date: 2015-09-02
GENERAL WIRELESS IP HLDG
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The 4:1 balun 108 unbalances and reduces this impedance so that the output signal 110 is unbalanced and has an impedance of approximately 75 ohms
Because of the inherent signal loss in the television antenna system 100, the television picture produced by the UHF signal is usually not completely satisfactory
[0005] Although existing equipment, such as those described above, are generally adequate for their intended purpose, they are not completely satisfactory in all respects
Method used
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[0024] For the purposes of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe. However, it should be understood that no limitation of the scope of the present disclosure is intended. Any alterations and further improvements in the described apparatus, apparatus, methods, and any additional applications of the principles of the disclosure as described herein are contemplated as would normally occur to a person skilled in the art to which the disclosure pertains . In particular, it is fully contemplated that features, components and / or steps described with respect to one embodiment may be combined with features, components and / or steps described with respect to other embodiments of the present disclosure.
[0025] As mentioned above, conventional antenna systems typically include a 4:1 balun to match the input impedance of the loop antenna to th...
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The invention relates to a high-efficiency loop antenna system and a method. The antenna comprises a conductive ring and a conductive band, wherein the conductive ring is provided with a first top surface part and a first edge part which is cut off by a gap defining a feeding point; the conductive band is provided with a second top surface; the conductive ring is positioned in the plane which is defined by the second top surface; the conductive band is provided with a second edge part which extends between the far ends opposite to the first and second top surfaces; the second edge part is away from the first edge part; the second edge part extends along the first edge part in a basically constant distance between the second edge part and the first edge part; and the conductive band is insulated with the conductive ring, and is structurally constructed and positioned relative to the conductive ring to adjust input impedance of the conductive ring.
Description
technical field [0001] The present disclosure relates to television antennas and television antenna systems for receiving television signals and methods for receiving television signals. Background technique [0002] Traditional indoor TV antennas usually include two types of antennas, a loop antenna for UHF reception and a telescopic antenna for VHF reception. Typically, in this setup, the UHF loop antenna is paired with a 4:1 balun to match the input impedance of the antenna to that of the amplifier and to convert the balanced antenna output to an unbalanced amplifier input. Furthermore, although UHF loop antennas generally amplify the received signals by some amount, television receivers will not receive these amplified signals because the balun attenuates them to some extent. For example, if the gain of the UHF antenna is about 2dBi and the signal loss due to the balun is about 2dB, then the net signal gain is zero. Furthermore, television signals received by UHF and V...
Claims
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IPC IPC(8): H01Q7/00H01Q1/36H04N5/44
Inventor 林万隆
Owner GENERAL WIRELESS IP HLDG