Low-profile high-gain polarization self-adaption high-definition television receiver and application thereof

A television receiver, high gain technology, applied in the field of low profile high gain polarization adaptive high definition television receivers, can solve the problems of difficulty, low profile, low thickness, etc., and achieve high efficiency.

Inactive Publication Date: 2014-01-29
SHANDONG GUOWEI SATELLITE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above-mentioned technical limitations, the existing antennas can only do a single polarization for the signal electromagnetic wave, and the adaptability is poor
The antenna of the pres

Method used

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  • Low-profile high-gain polarization self-adaption high-definition television receiver and application thereof
  • Low-profile high-gain polarization self-adaption high-definition television receiver and application thereof
  • Low-profile high-gain polarization self-adaption high-definition television receiver and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1-6 shown.

[0028] A low-profile high-gain polarization adaptive high-definition television receiver, including a radiation layer, a resonant cavity layer, an upper feed layer, a coupling layer and a lower feed layer; a radiator is arranged on the radiation layer; the Both the upper feed layer and the lower feed layer feed power to the radiation layer through the coupling layer: when the upper feed layer and the lower feed layer are separately fed, the radiation layer is respectively excited to generate vertically polarized waves and Horizontally polarized wave; if the upper feed layer and the lower feed layer are simultaneously fed, then by controlling the amplitude and phase of the upper feed layer and the lower feed layer waves, to excite left-handed circularly polarized waves, right-handed circularly polarized waves, either spin polarized or elliptically polarized waves.

Embodiment 2

[0030] A working method of a low-profile high-gain polarization adaptive high-definition television receiver as described in Embodiment 1, when the amplitudes of the waves of the upper-layer feed layer and the lower-layer feed layer are controlled to be equal, the upper-layer feed layer excites in the radiation layer If the electromagnetic field phase of the lower feeding layer is behind the phase of the electromagnetic field excited in the radiation layer by π / 2, a left-handed circularly polarized wave will be generated; on the contrary, the phase of the electromagnetic field excited by the lower feeding layer in the radiation layer will lag behind that of the upper feeding layer. The phase π / 2 of the electromagnetic field excited by the layer in the radiation layer produces right-handed circularly polarized waves; similarly, elliptical polarized waves are generated by controlling the amplitude and phase of the upper and lower feed layers.

[0031] For any polarization form of...

Embodiment 3

[0033] An application of a low-profile high-gain polarization adaptive high-definition television receiver as described in Embodiment 1 in receiving television signals:

[0034] According to the reciprocity principle of the antenna, the low-profile high-gain polarization adaptive high-definition television receiver is used as a TV signal receiving antenna to adaptively receive vertically polarized waves, horizontally polarized waves, left-handed circularly polarized waves, and right-handed circularly polarized waves. Polarized waves, elliptically polarized waves.

[0035] A radiator is arranged on the radiation layer, and the radiator is a square horn antenna.

[0036] Each cavity in the cavity layer excites four square horn antennas, all at maximum bias.

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PUM

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Abstract

The invention relates to a low-profile high-gain polarization self-adaption high-definition television receiver which comprises a radiation layer, a resonant cavity layer, an upper feed layer, a coupling layer and a lower feed layer. A radiator is arranged on the radiation layer and both the upper feed layer and the lower feed layer conduct feed on the radiation layer through the coupling layer. When the upper feed layer and the lower feed layer conducts feed independently, vertically polarized waves and horizontally polarized waves are excited out respectively by the radiation layer. When the upper feed layer and the lower feed layer conduct feed synchronously, left-handed circularly polarized waves and right-handed polarized waves or elliptically polarized waves are excited out through control over the amplitude and the phase of waves of the upper feed layer and the lower feed layer. According to the low-profile high-gain polarization self-adaption high-definition television receiver, two layers of feed networks are adopted so that horizontally polarized waves and vertically polarized waves can be excited out independently, and the purposes that gain of an antenna is guaranteed and meanwhile polarization self-adaption of the antenna is realized are achieved; a square radiation horn is the guarantee of high gain of the antenna and high efficiency of the antenna.

Description

technical field [0001] The invention relates to a low-profile high-gain polarization adaptive high-definition television receiver and its application, belonging to the technical field of communication panel antennas. Background technique [0002] Most of the existing high-definition TV receivers are fixed-polarized antennas, and their cavity-backed slot antennas can only receive signals of a certain fixed polarization mode: such as horizontally polarized electromagnetic waves, vertically polarized electromagnetic waves, left circularly polarized electromagnetic waves or right Circularly polarized electromagnetic waves. Due to the above-mentioned technical limitations, existing antennas can only perform a single polarization on signal electromagnetic waves, and their adaptability is poor. The antenna of the present invention is a planar antenna with low thickness and low profile. However, most of our common high-definition television receivers are parabolic antennas, and it ...

Claims

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Application Information

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IPC IPC(8): H01Q15/24H01Q13/02H01Q21/00H01Q1/50
Inventor 杨睿唐文成杨猛
Owner SHANDONG GUOWEI SATELLITE COMM
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