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.
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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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