CN207690996U - A Multi-band Multi-polarization Microstrip Patch Antenna - Google Patents

Abstract

The utility model discloses a multiband multi-polarization microstrip patch antenna, which comprises a microstrip transmission line, a coupling feed part, an intermediate medium substrate and a metal floor, when in operation, the microstrip transmission line feeds the first microstrip patch antenna, the second microstrip patch antenna and a resonator through the coupling feed part, because the first closed gap and the third closed gap are asymmetrically arranged, different gaps feed simultaneously when the coupling feed part feeds, the function of multiband transmission is realized, the universality that communication equipment can work in a plurality of systems can be satisfied, the working frequency band of the microstrip patch antenna can cover more frequency bands, because the polarization directions of the resonator, the first microstrip patch antenna and the second microstrip patch antenna are different, the multi-polarization of the microstrip patch antenna is realized, and the radiation characteristic of the microstrip patch antenna is enhanced, the radiation coverage range of wireless transmission is enlarged, and the frequency of the microstrip patch antenna can be adjusted through the resonator.

Description

A Multi-band Multi-polarization Microstrip Patch Antenna

technical field

The utility model relates to a patch antenna, in particular to a multi-band and multi-polarized microstrip patch antenna.

Background technique

The microstrip antenna is on a thin dielectric substrate, one side is attached with a thin metal layer as a ground plane, and the other side is made of a metal patch of a certain shape by photolithography and etching, and the patch is fed by a microstrip line or a coaxial probe composed of antennas. There are two types of microstrip antennas: one is a patch shape that is a slender strip, and the other is a microstrip vibrator antenna. The other is that when the patch is an area unit, it is a microstrip antenna. If the ground plate is carved with a slit, and when the microstrip line is printed on the other side of the dielectric substrate, the slit is fed, and the microstrip slot antenna is formed.

The existing microstrip patch antennas cannot adapt well to different working frequency bands, which makes the versatility of the microstrip patch antennas not strong, and the existing microstrip patch antennas have a narrow radiation range. To expand the radiation range of the antenna The volume is generally large, and the frequency of the existing microstrip patch antenna is not adjustable.

Contents of the invention

The purpose of this utility model is to provide a multi-band and multi-polarized microstrip patch antenna to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A multi-band and multi-polarized microstrip patch antenna, including a microstrip transmission line, a coupling feeding part, an intermediate dielectric substrate and a metal floor, the bottom of the intermediate dielectric substrate is provided with a metal floor, and the center of the top lower side of the intermediate dielectric substrate is provided with a A microstrip transmission line, a coupling feeder part is vertically connected above the microstrip transmission line, a first closed gap is arranged on the left side of the coupling feeder part, a second closed gap is arranged above the coupling feeder part, and a second closed gap is arranged on the right side of the coupling feeder part. Three closed gaps; the first microstrip patch antenna, the resonator and the second microstrip patch antenna are arranged on the left and right sides and the top of the coupling feed part, and the resonator is located at the first microstrip patch antenna and the second microstrip patch antenna. Between the patch antennas; the resonator is provided with a number of metal columns inside, and the metal columns are connected with the metal floor.

As a further solution of the present invention: the first closed slit and the third closed slit are arranged asymmetrically.

As a further solution of the present invention: the resonator, the first microstrip patch antenna and the second microstrip patch antenna are all arranged corresponding to the first closed slot, the second closed slot and the third closed slot.

As a further solution of the present invention: the intermediate dielectric substrate is made of glass fiber epoxy resin material and the dielectric constant of the intermediate dielectric substrate is 4.4.

As a further solution of the present invention: the order of the resonator is the same as the number of metal pillars.

As a further solution of the utility model: the polarization directions of the resonator and the first microstrip patch antenna and the second microstrip patch antenna are different, and the first microstrip patch antenna and the second microstrip patch antenna The polarization direction of the resonator is parallel to the intermediate dielectric substrate, and the polarization direction of the resonator is perpendicular to the intermediate dielectric substrate.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model is simple and reasonable in structural design, convenient and quick to use, and has high practicability. When working, the microstrip transmission line is in harmony with the first microstrip patch antenna and the second microstrip patch antenna through the coupling feeding part. Oscillator coupling feed, because the first closed slot and the third closed slot are asymmetrically arranged, while the coupling feed part feeds power, different slots also feed power at the same time, realizing the function of multi-band transmission, which can meet the needs of communication equipment The versatility of being able to work in multiple systems enables the working frequency band of the microstrip patch antenna to cover more frequency bands, because the polarization direction of the resonator is different from that of the first microstrip patch antenna and the second microstrip patch antenna , the polarization directions of the first microstrip patch antenna and the second microstrip patch antenna are parallel to the intermediate dielectric substrate, and the polarization direction of the resonator is perpendicular to the intermediate dielectric substrate, realizing the multi-polarization of the microstrip patch antenna, The radiation characteristics of the microstrip patch antenna are enhanced, the radiation coverage of wireless transmission is expanded, and the frequency of the microstrip patch antenna can be adjusted through the resonator.

Description of drawings

FIG. 1 is a schematic structural diagram of a multi-band multi-polarization microstrip patch antenna.

Fig. 2 is a rear view of a multi-band multi-polarization microstrip patch antenna.

In the figure: 1-Microstrip transmission line, 2-Coupling feed part, 3-First microstrip patch antenna, 4-Second microstrip patch antenna, 5-Resonator, 6-Metal pillar, 7-First Closed gap, 8-second closed gap, 9-third closed gap, 10-intermediate substrate, 11-metal floor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to FIGS. 1-2. In an embodiment of the present invention, a multi-band multi-polarization microstrip patch antenna includes a microstrip transmission line 1, a coupling feeding part 2, an intermediate dielectric substrate 10 and a metal floor 11. The bottom of the intermediate dielectric substrate 10 is provided with a metal floor 11, the center of the lower side of the top of the intermediate dielectric substrate 10 is provided with a microstrip transmission line 2, the upper part of the microstrip transmission line 2 is vertically connected to a coupling feeding part 2, and the left side of the coupling feeding part 2 is provided with a second A closed gap 7, a second closed gap 8 is provided above the coupling feed part 2, a third closed gap 9 is provided on the right side of the coupling feed part 2; Microstrip patch antenna 3, resonator 5 and the second microstrip patch antenna 4, resonator 5 is positioned between the first microstrip patch antenna 3 and the second microstrip patch antenna 4; Described resonator 5 interior Several metal columns 6 are provided, and the metal columns 6 are connected with the metal floor 11 .

The first closed slit 7 and the third closed slit 9 are arranged asymmetrically.

The resonator 5 , the first microstrip patch antenna 3 and the second microstrip patch antenna 4 are all arranged corresponding to the first closed slot 7 , the second closed slot 8 and the third closed slot 9 .

The intermediate dielectric substrate 10 is made of glass fiber epoxy resin material and the dielectric constant of the intermediate dielectric substrate 10 is 4.4.

The order of the resonators 5 is the same as the number of metal pillars 6 .

The resonator 5 is different from the polarization direction of the first microstrip patch antenna 3 and the second microstrip patch antenna 4, and the polarization direction of the first microstrip patch antenna 3 and the second microstrip patch antenna 4 Parallel to the intermediate dielectric substrate 10 , the polarization direction of the resonator 5 is perpendicular to the intermediate dielectric substrate 10 .

The working principle of the utility model is:

The utility model relates to a multi-band and multi-polarization microstrip patch antenna. When working, the microstrip transmission line 1 is in harmony with the first microstrip patch antenna 3 and the second microstrip patch antenna 4 through the coupling feeding part 2. The vibrator 5 is coupled and fed. Since the first closed slot 7 and the third closed slot 9 are asymmetrically arranged, while the coupling feeding part 2 feeds power, different slots are also fed at the same time, realizing the function of multi-band transmission. Because resonator 5 is different from the polarization directions of the first microstrip patch antenna 3 and the second microstrip patch antenna 4, the polarization directions of the first microstrip patch antenna 3 and the second microstrip patch antenna 4 are parallel With respect to the intermediate dielectric substrate 10, the polarization direction of the resonator 5 is perpendicular to the intermediate dielectric substrate 10, realizing multi-polarization of the microstrip patch antenna.

The utility model is simple and reasonable in structural design, convenient and quick to use, and has high practicability. When working, the microstrip transmission line is in harmony with the first microstrip patch antenna and the second microstrip patch antenna through the coupling feeding part. Oscillator coupling feed, because the first closed slot and the third closed slot are asymmetrically set, while the coupling feeding part feeds power, different slots also feed power at the same time, realizing the function of multi-band transmission, which can meet the needs of communication equipment The versatility of being able to work in multiple systems enables the working frequency band of the microstrip patch antenna to cover more frequency bands, because the polarization direction of the resonator is different from that of the first microstrip patch antenna and the second microstrip patch antenna , the polarization directions of the first microstrip patch antenna and the second microstrip patch antenna are parallel to the intermediate dielectric substrate, and the polarization direction of the resonator is perpendicular to the intermediate dielectric substrate, realizing the multi-polarization of the microstrip patch antenna, The radiation characteristic of the microstrip patch antenna is enhanced, the radiation coverage of wireless transmission is expanded, and the frequency of the microstrip patch antenna can be adjusted through the resonator.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. a kind of multi-band multi-polarization microstrip patch antenna, comprises microstrip transmission line (1), coupling feeding part (2), intermediate medium substrate (10) and metal floor (11), it is characterized in that, described A metal floor (11) is arranged at the bottom of the intermediate dielectric substrate (10), a microstrip transmission line (1) is arranged at the center of the lower side of the top of the intermediate dielectric substrate (10), and a coupling feeding part (2) is vertically connected above the microstrip transmission line (1). ), the left side of the coupling feed part (2) is provided with a first closed gap (7), the upper part of the coupling feed part (2) is provided with a second closed gap (8), and the right side of the coupling feed part (2) is provided with The third closed gap (9); the first microstrip patch antenna (3), the resonator (5) and the second microstrip patch antenna (4) are arranged on the left and right sides and the top of the coupling feeding part (2) ), the resonator (5) is located between the first microstrip patch antenna (3) and the second microstrip patch antenna (4); the resonator (5) is internally provided with some metal columns (6), and the metal The columns (6) are connected to the metal floor (11). 2. A multi-band multi-polarization microstrip patch antenna according to claim 1, characterized in that the first closed slot (7) and the third closed slot (9) are arranged asymmetrically. 3. a kind of multi-band multi-polarized microstrip patch antenna according to claim 1, is characterized in that, described resonator (5), the first microstrip patch antenna (3) and the second microstrip patch antenna The chip antennas (4) are arranged corresponding to the first closed slot (7), the second closed slot (8) and the third closed slot (9). 4. A kind of multi-band multi-polarization microstrip patch antenna according to claim 1, is characterized in that, described intermediate substrate (10) is the dielectric material of glass fiber epoxy resin material and intermediate dielectric substrate (10). The electric constant is 4.4. 5. A multi-band multi-polarization microstrip patch antenna according to claim 1, characterized in that the order of the resonator (5) is the same as the number of metal posts (6). 6. A kind of multi-band multi-polarization microstrip patch antenna according to claim 1, is characterized in that, described resonator (5) and the first microstrip patch antenna (3) and the second microstrip patch The polarization directions of the patch antenna (4) are different, the polarization directions of the first microstrip patch antenna (3) and the second microstrip patch antenna (4) are parallel to the intermediate dielectric substrate (10), and the resonator (5) The polarization direction of is perpendicular to the intermediate dielectric substrate (10).