Full-band double-layer trapezoidal digital television transmitting antenna

A digital TV transmission, full-band technology, applied to antenna arrays, antennas, and resonant antennas that are powered independently, can solve problems such as high VSWR, narrow frequency band, and low gain, and achieve low VSWR and withstand Powerful, easy-to-debug effects

Pending Publication Date: 2020-01-14
DALIAN MARITIME UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shortcomings of general digital TV transmitting antennas such as narrow frequency band, low gain, high voltage standing wave ratio, and inflexible formation increase the production cost of the antenna and limit the universal applicability of the antenna.

Method used

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  • Full-band double-layer trapezoidal digital television transmitting antenna
  • Full-band double-layer trapezoidal digital television transmitting antenna
  • Full-band double-layer trapezoidal digital television transmitting antenna

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Specifically, the technical indicators that the present invention can realize are as follows:

[0034] Frequency range: 470MHz~860MHz;

[0035] Working bandwidth: 470MHz~860MHz;

[0036] Polarization method: horizontal polarization;

[0037] VSWR: ≤1.13:1;

[0038] Input power: ≤1.0Kw;

[0039] Antenna gain: ≥13.0dBi;

[0040] Front t...

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PUM

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Abstract

The invention discloses a full-band double-layer trapezoidal digital television transmitting antenna, which includes an antenna unit, a connector, and a reflection plate. The connector supplies powerto the antenna unit. The connector and the antenna unit are fixed to the reflection plate. The antenna unit includes two groups of double-layer trapezoidal dipole units, adjustable insulating screws,a first feeding metal strip, a second feeding metal strip, a stepped linear impedance converter, a balun structure and a support structure. The stepped linear impedance converter includes a vertical linear impedance converter, a horizontal stepped impedance converter, and a compensating complex impedance connector which are connected successively. The full-band double-layer trapezoidal digital television transmitting antenna can cover the full frequency band of a digital television, can withstand large power, has a low voltage standing wave ratio, low cost, and high gain, and is easy to debug.

Description

technical field [0001] The invention relates to a digital TV transmitting antenna, in particular to a full-band double-layer trapezoidal digital TV transmitting antenna. Background technique [0002] Terrestrial digital television broadcasting, as a basic means and an important way to provide broadcasting and television public services, has been regarded by developed countries as a "strategic technology" of great significance to the information development of human society. Compared with traditional analog TV, digital TV has the advantages of high signal transmission quality, high utilization rate of spectrum resources, and high utilization rate of equipment, and can provide people with more interactive TV services. Among them, the transmitting antenna, as an important part of the digital radio and television system, plays a decisive role in the propagation ability of radio and television signals. A high-quality antenna can broaden the signal coverage and improve the qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/12H01Q1/36H01Q1/50H01Q9/16H01Q19/10H01Q21/00H01Q21/08
CPCH01Q19/104H01Q1/50H01Q9/16H01Q1/12H01Q1/36H01Q21/0006H01Q21/08
Inventor 房少军于海晶尚玉洪李英杰
Owner DALIAN MARITIME UNIVERSITY
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