CN104701636B - A kind of miniaturization Uda antenna array for mobile communication - Google Patents

Abstract

The invention provides a kind of miniaturization Uda antenna array for mobile communication, excitation is realized using a series feed structure and is matched, including a driven dipole unit, one reflector parasitic dipoles unit, one director parasitic dipoles unit, one series feed structure, the side of described series feed structure and driven dipole unit, reflector parasitic dipoles unit links together, opposite side and director parasitic dipoles unit link together, beneficial effects of the present invention are that working frequency range can be adjusted, directional diagram directionality in frequency range is good；Anti-jamming effectiveness is good, and performance is stable, and signal volume is big.

Description

A Miniaturized Yagi-Uda Antenna Array for Mobile Communication

technical field

The invention relates to the technical field of wireless communication, in particular to a miniaturized Yagi-Uda antenna array for mobile communication.

Background technique

With the rapid development of mobile communication technology and the sharp increase of mobile communication traffic, the coverage area of mobile communication network is constantly expanding and perfecting. become more and more important.

The traditional Yagi-Uda antenna uses three independent dipole arrays to form a directional high-gain communication, but the size is relatively large.

Contents of the invention

This application proposes a miniaturized Yagi-Uda antenna array for mobile communication. The working frequency band of the Yagi-Uda antenna can be adjusted, and the direction diagram in the frequency band is good; the anti-interference effect is good, the performance is stable, and the signal capacity is large. .

In order to solve the above technical problems, the embodiment of the present application provides a miniaturized Yagi-Uda antenna array for mobile communication, which adopts a series feed structure to realize excitation and matching, including a stimulated dipole unit, a reflector A parasitic dipole unit of a director, a parasitic dipole unit of a director, and a series feed structure, one side of the series feed structure is connected with the excited dipole unit and the parasitic dipole unit of the reflector Together, the other side and the director parasitic dipole unit are connected together.

As a preferred embodiment of this solution, the stimulated dipole unit, the parasitic dipole unit of the reflector, the parasitic dipole unit of the director and the series feed structure are all made of metal, and the shape is "work". glyph.

As a preferred embodiment of this solution, the excited dipole unit, the reflector parasitic dipole unit, the director parasitic dipole unit and the series feed structure are all made of copper material.

As a preferred embodiment of this solution, the excited dipole unit, the reflector parasitic dipole unit, the director parasitic dipole unit and the series feed structure are all made of aluminum material.

As a preferred embodiment of this solution, the excited dipole unit, the parasitic dipole unit of the reflector, and the parasitic dipole unit of the director all adopt terminal loading to realize miniaturization.

As a preferred embodiment of this solution, the distance between the stimulated dipole unit and the reflector parasitic dipole unit and the distance between the stimulated dipole unit and the director parasitic dipole unit can be adjusted.

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

The working frequency band of the Yagi-Uda antenna can be adjusted, and the pattern directionality in the frequency band is good; the anti-interference effect is good, the performance is stable, and the signal capacity is large.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the overall structural diagram of the embodiment of the present application;

Fig. 2 is the graph that the return loss of application embodiment changes with frequency;

Fig. 3 is the far-field E plane pattern of the frequency point 2.4GHz of the embodiment of the present application;

FIG. 4 is a far-field H-plane pattern at a frequency point of 2.4 GHz according to an embodiment of the present application.

In the figure: 1. Director parasitic dipole unit, 2. Series feed structure, 3. Stimulated dipole unit, 4. Reflector parasitic dipole unit.

detailed description

In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

As shown in Figure 1, a kind of miniaturized Yagi-Uda antenna array for mobile communication according to the present invention adopts a series feed structure to realize excitation and matching, including a stimulated dipole unit 3, a reflector device parasitic dipole unit 4, a director parasitic dipole unit 1, a series feed structure 2, one side of the series feed structure 2 is connected with the excited dipole unit 3, the reflector parasitic dipole The pole units 4 are connected together, and the other side and the director parasitic dipole unit 1 are connected together.

Wherein, in this embodiment, the excited dipole unit 3, the parasitic dipole unit 4 of the reflector, the parasitic dipole unit 1 of the director and the series feeding structure 2 are all made of metal, and the shape is uniform. It is in the shape of "工".

Wherein, in this embodiment, the excited dipole unit 3, the reflector parasitic dipole unit 4, the director parasitic dipole unit 1 and the series feed structure 2 are all made of copper or aluminum. become.

Wherein, in this embodiment, the stimulated dipole unit 3 , the reflector parasitic dipole unit 4 , and the director parasitic dipole unit 1 all adopt terminal loading to realize miniaturization.

Wherein, in this embodiment, the distance between the stimulated dipole unit 3 and the reflector parasitic dipole unit 4 and the distance between the stimulated dipole unit 3 and the director parasitic dipole unit 1 are equal to adjustable.

The above-mentioned embodiments of the present application have at least the following advantages: the working frequency band can be adjusted, and the direction diagram in the frequency band has good directionality; the anti-interference effect is good, the performance is stable, and the signal capacity is large.

The advantages of the present invention can be further illustrated by the following simulations:

Simulation content

The circuit parameters and radiation parameters of the above-mentioned Yagi-Uda antenna for mobile communication are simulated and calculated by using simulation software. By observing the return loss of the antenna unit, conclusions can be drawn intuitively. Very good directional radiation can be achieved in the operating frequency band by means of the antenna unit.

Simulation results

Fig. 2 is the circuit parameter information of a Yagi-Uda antenna for mobile communication. Fig. 2 is the curve of the return loss of the feeding port of the Yagi-Uda antenna changing with frequency, and Fig. 3 and Fig. 4 are the radiation parameter information of the Yagi-Uda antenna. Figure 3 and Figure 4 are the far-field patterns of the E-plane and H-plane respectively when the Yagi-Uda antenna works at 2.4GHz. It can be seen from Fig. 3 and Fig. 4 that after using the structure designed by the present invention, a stable and directional pattern can be obtained.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solution of the present invention.

Claims (5)

1. a kind of miniaturization yagi-uda array for mobile communication, it is characterised in that：Using a series feed knot Structure is encouraged and matched to realize, including driven dipole unit, reflector parasitic dipoles unit, a director Parasitic dipoles unit, a series feed structure, side and driven dipole unit, the reflection of described series feed structure Device parasitic dipoles unit links together, opposite side and director parasitic dipoles unit link together；Described is excited Doublet unit, reflector parasitic dipoles unit, director parasitic dipoles unit and series feed structure are metal material Matter, shape is I-shaped.

2. a kind of miniaturization yagi-uda array for mobile communication according to claim 1, its feature exists In：Described driven dipole unit, reflector parasitic dipoles unit, director parasitic dipoles unit and series feed knot Structure is that copper product is made.

3. a kind of miniaturization yagi-uda array for mobile communication according to claim 1, its feature exists In：Described driven dipole unit, reflector parasitic dipoles unit, director parasitic dipoles unit and series feed knot Structure is that aluminum is made.

4. a kind of miniaturization yagi-uda array for mobile communication according to claim 1, its feature exists In described driven dipole unit, reflector parasitic dipoles unit, director parasitic dipoles unit are added using terminal Carry to realize miniaturization.

5. a kind of miniaturization yagi-uda array for mobile communication according to claim 4, its feature exists In described driven dipole unit and the spacing of reflector parasitic dipoles unit and driven dipole unit and director The spacing of parasitic dipoles unit can adjust.