High grain wide frequency band omni-directional antenna

Abstract

The invention provides a high grain wide frequency band omni-directional antenna, comprising two orthogonal radiation units, a load radiation unit, a direct current path, a grounding plate and a feeding structure. The radiation unit of the antenna partially uses vertical patches to constitute an orthogonal structure, and the load radiation unit thereon effectively advances the radiation direction diagram on the azimuth plane, the direct current short circuit probe and load feeding technique, thereby not only expanding the bandwidth of the antenna but also reducing the size of the antenna. The invention has higher radiation efficiency and higher grain, thereby advancing the communication quality and improving the communication environment, adding the work bandwidth of the antenna, improving the impedance bandwidth of the antenna, having low cost and being convenient for mass production.

Description

technical field [0001] The invention relates to a broadband omnidirectional antenna for transmitting and receiving radio signals in all communication networks in the field of communication and mobile communication. Background technique [0002] As radio communication equipment and electronic information equipment are developing toward multi-functionality, miniaturization, ultra-wideband and friendly coordination with the surrounding environment, this makes broadband and miniaturization one of the hot research topics at home and abroad. It involves the broadband impedance matching technology of the antenna, the loading technology of the antenna, the vertical patch technology, the reactance compensation technology of the antenna, the optimized design of the small antenna shape and other advanced technologies and processes. At the same time, solve some shortcomings of existing antennas: (1) At present, the gain of the antenna is required to be relatively high, for example, a ga...

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Problems solved by technology

At the same time, solve some shortcomings of the existing antenna: (1) At present, the gain of the antenna is required to be relatively high, for example, a gain of 5-6dBi is required, and most of the existing antennas are dipole antennas and monopole antennas, and the directional diagrams are equal up and down , so a part of the electric wave is consumed, so the gain is relatively low

The current antennas cannot meet the current communication needs, especially the dual-band broadband high-gain antennas cannot meet the requirements

(4) Most of the current cell coverage and beautification antennas use monopole antennas and dipole antennas, and it is difficult to control the frequency band. At the same time, in order to make full use of existing resources and adapt to the needs of different environments, the antenna design is required to be flexible. Can meet the needs of different occasions

Moreover, the products developed are all directional antenna products. Although there are a few broadband omnidirectional antenna products, they are complex in structure, cumbersome in design, poor in versatility, high in processing cost, and have certain defects in performance, so they are not suitable for promotion. Cell coverage has caused certain difficulties, so the development of multi-band, miniaturized, simple structure, flexible design, and low-cost broadband omnidirectional antenna is the top priority of today's research

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