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Dual-polarized television receiving antenna

An antenna and vertical polarization technology, which is applied in the field of TV terrestrial signal receiving antennas, can solve the problems that the radiation unit waterproof antenna is difficult to prevent wind, can only receive vertically polarized electromagnetic waves, and can only receive horizontally polarized waves.

Inactive Publication Date: 2011-06-29
广东侨华科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the Yagi antenna has its own shortcomings: it cannot recognize horizontally polarized waves and vertically polarized waves at the same time, and can only receive horizontally polarized electromagnetic waves or only vertically polarized electromagnetic waves
It also increases the difficulty of antenna production. The antennas produced must have the functions of vertical installation and horizontal installation. It is difficult to waterproof the radiation unit and windproof the antenna.

Method used

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  • Dual-polarized television receiving antenna
  • Dual-polarized television receiving antenna
  • Dual-polarized television receiving antenna

Examples

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:

[0014] The designed antenna is a TV signal receiving antenna working in the UHF frequency band. The antenna is composed of a support unit (1-3), a radiation unit (1-4), a director (1-2), and a reflection unit (1-1). Wherein the radiation unit (1-4), the director (1-2), and the reflection unit (1-1) are all assembled on the support unit (1-3). The radiator (2-1) is a circular conductor. The radiator (2-1) includes a ring conductor (2-1-1), which is an open ring with a diameter of 80mm and capable of receiving horizontally polarized and vertically polarized waves. The balun is placed in the plastic casing (2-1-5), and the ring conductor radiator (2-1-1) can be matched with the coaxial cable by using the balun, and the radiator and the coaxial cable are connected through an F-head connector. The ring conductor (2-1-1) (electromagnetic converter)...

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Abstract

The invention belongs to the technical field of television ground signal receiving antennas, and discloses an antenna receiving and emitting radio signals in a certain frequency band. The antenna comprises an electromagnetic wave radiating element (1-4), a reflection screen (1-1) and at least one director (1-2), wherein the electromagnetic wave radiating element of the antenna can receive level polarized waves and vertical polarized waves in a certain frequency bands; and the director is an electric conductor working in a specific frequency band and the plane in which the electric conductor is located and the maximal gain direction of the antenna are perpendicular to each other.

Description

technical field [0001] The invention belongs to the technical field of TV terrestrial signal receiving antennas. Background technique [0002] Usually, an antenna includes three basic units: a radiation element, a reflector, and one or more directors, which are used to change the radiation field to make the directionality stronger. For the currently commonly used radio signals, they can be divided into circularly polarized signals and linearly polarized signals according to their polarization characteristics. Usually, the director and radiating element of an antenna determine which polarization direction the antenna emits and receives electromagnetic waves. Yagi Uda antennas can be used to transmit and receive linearly polarized waves. Vibrator) and a linear guide (usually a metal rod) for receiving linearly polarized waves, and a reflector. Generally, the Yagi antenna has its own disadvantages: it cannot recognize horizontally polarized waves and vertically polarized wave...

Claims

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Application Information

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IPC IPC(8): H01Q21/24H01Q19/10
Inventor 杨瑞雄温木奇何果
Owner 广东侨华科技有限公司
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