CN215184534U

CN215184534U - L-band high-gain omnidirectional antenna

Info

Publication number: CN215184534U
Application number: CN202121444927.6U
Authority: CN
Inventors: 郑晓; 王晓亮; 王玖珍
Original assignee: Hebei Vste Technology Co ltd
Current assignee: Hebei Vste Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-14
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to the field of communication technology, more specifically is a L wave band high gain omnidirectional antenna. The antenna comprises an antenna cover, an active excitation array arranged in the antenna cover and a combiner arranged at the end part of the antenna cover; the active excitation arrays are arranged in pairs to form array groups; an array plug block is arranged between the two active excitation arrays in each array group, and the two active excitation arrays in each array group are connected through a connecting sheet; the active excitation arrays of the adjacent array groups are connected through connecting sheets; the outermost active excitation array is connected with the combiner. The whole design drawing shows that the structure is simple, so that the installation is fast, and the round antenna cover is added, so that the antenna is convenient to carry, not easy to damage and long in service life. The L-band high-gain omnidirectional antenna is designed in a mosaic mode, the design can ensure that the antenna has high gain, and the out-of-roundness performance is superior to that of the same type of antenna.

Description

L-band high-gain omnidirectional antenna

Technical Field

The utility model relates to the field of communication technology, more specifically is a L wave band high gain omnidirectional antenna.

Background

The omnidirectional antenna in the existing market products has generally lower gain, even the gain of the existing omnidirectional antenna is required to be more than or equal to 0dBi, and the out-of-roundness of the antenna is poor. Out-of-roundness refers to the deviation of its maximum or minimum level value from the mean value in the horizontal plane pattern. The design is to improve the performance of antenna gain and out-of-roundness by forming an array.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a through constituting the L wave band high gain omnidirectional antenna of the performance that the array improves antenna gain and out of roundness.

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

the L-band high-gain omnidirectional antenna is characterized by comprising an antenna cover, an active excitation array arranged in the antenna cover and a combiner arranged at the end part of the antenna cover; the active excitation arrays are arranged in pairs to form array groups; an array plug block is arranged between the two active excitation arrays in each array group, and the two active excitation arrays in each array group are connected through a connecting sheet; the active excitation arrays of the adjacent array groups are connected through connecting sheets; the outermost active excitation array is connected with the combiner.

Preferably, the high-gain omnidirectional antenna comprises 3 array subgroups.

Preferably, a radio frequency connector is arranged on the outer side of the combiner at one end of the antenna cover.

Preferably, the antenna cover is a hollow cylindrical structure, one section of the antenna cover is provided with a sealing plate, and the other end of the antenna cover is open; one combiner is arranged inside the closing plate of the antenna cover, and the other combiner is arranged at the opening part of the antenna cover.

Preferably, the radio frequency connector is arranged outside the combiner at one end of the open part.

Preferably, the open end of the antenna cover is provided with a mounting fixing plate.

The beneficial effect of this application:

the whole design drawing shows that the structure is simple, so that the installation is fast, and the round antenna cover is added, so that the antenna is convenient to carry, not easy to damage and long in service life. The L-band high-gain omnidirectional antenna is designed in a mosaic mode, the design can ensure that the antenna has high gain, and the out-of-roundness performance is superior to that of the same type of antenna.

Drawings

Fig. 1 is a schematic structural diagram of the present application.

Fig. 2 is a schematic elevation view of a half-section structure in the longitudinal direction of the present application.

Fig. 3 is a schematic plan view of a half-section structure in the length direction of the present application.

Fig. 4 is a schematic diagram of the structure of the antenna-less cover of the present application.

Fig. 5 shows the test pattern (polarization mode: vertical) of the present application.

Fig. 6 is a test pattern (polarization mode: horizontal) of the present application.

Wherein:

combiner 1

Connecting sheet 2

Active excitation array 3

Array plug block 4

Antenna cover 5

Closing plate 6

The fixing plate 7 is installed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

With the combination of the attached drawings, the invention combines three groups of active excitation arrays into an array, the gain of a single antenna is generally limited, and the gain can be improved by combining the array, thereby meeting the requirement of omnidirectional high gain designed by the invention. The L-band high-gain omnidirectional antenna mainly comprises an array formed by three groups of active excitation units, a combiner, an active excitation array sub-plug block, a connecting sheet and an antenna housing.

The L-band high-gain omnidirectional antenna comprises an antenna cover, an active excitation array arranged in the antenna cover and a combiner arranged at the end part of the antenna cover; the active excitation arrays are arranged in pairs to form array groups; an array plug block is arranged between the two active excitation arrays in each array group, and the two active excitation arrays in each array group are connected through a connecting sheet; the active excitation arrays of the adjacent array groups are connected through connecting sheets; the outermost active excitation array is connected with the combiner.

Preferably, the high-gain omnidirectional antenna comprises 3 array subgroups.

The antenna cover is of a hollow cylindrical structure, a sealing plate is arranged at one section of the antenna cover, and the other end of the antenna cover is open; one combiner is arranged inside the closing plate of the antenna cover, and the other combiner is arranged at the opening part of the antenna cover. The radio frequency joint is arranged on the outer side of the combiner at one end of the open part. And the open end of the antenna cover is provided with a mounting fixing plate.

On the basis of the technical requirement G of being more than or equal to 6dBi, the calculation formula of the wavelength lambda is 300/f, the calculated wavelength is 162.2mm, the active excitation array is a symmetrical half-wave array, the calculated wavelength is divided by 2 to be 81mm, the size of the single excitation array is 81mm, the active excitation array is fixed on an array plug block, the length of a feed line of the active excitation array is 47CM long, a feed method is used for carrying out short circuit by using a lambda/4 feed method for 40.5mm, the impedance of the feed line reaches 50 ohms, a core and a shielding layer at one end of the feed line are respectively connected to one excitation array, an SMA connector is welded at the other end of the feed line, a second group of active excitation arrays are installed at the position with the interval of 60mm (0.27 lambda) by using the same method, and then a third group of excitation arrays are installed at the interval of 60mm of the second group of excitation arrays. And the three groups of active excitation arrays and the combiner are fixed on the connecting piece, further, SMA joints of the three groups of active excitation arrays are respectively connected to three groups of branches of the combiner, and then the three groups of active excitation arrays are combined into one path to be connected to a radio frequency joint (such as an integral design drawing). Because the gain of each group of active excitation arrays is 2.15dBi, the gain of the array formed by the three groups of active excitation arrays can meet the requirement that the gain is more than or equal to 6dBi, and the out-of-roundness is less than or equal to 2, wherein the out-of-roundness refers to the deviation between the maximum value or the minimum value level value and the average value in a horizontal plane directional diagram, and refers to the performance of the omnidirectional antenna for receiving signals at 360 degrees. Then connect the circular antenna cover, play the sealed rain-proof and portable's effect.

As an implementation case, the operating frequency range: 1350MHz-1850 MHz; antenna gain: not less than 6 dBi; out-of-roundness of the antenna: less than or equal to 2; voltage standing wave ratio: less than or equal to 1.5.

The test is respectively carried out according to the vertical direction and the horizontal direction of the polarization mode, and the test result is shown in the figure. As can be seen from the L-band high-gain omnidirectional antenna vertical directional diagram, the antenna gain is equal to or larger than 6 dBi. According to the horizontal directional diagram of the L-band high-gain omnidirectional antenna, the out-of-roundness of the antenna is less than or equal to 2.

In this application, thereby can see out the structure from the global design drawing and make the installation swift than simple, because of including circular antenna cover makes the antenna portable, not fragile long service life. The L-band high-gain omnidirectional antenna is designed in a mosaic mode, the design can ensure that the antenna has high gain, and the out-of-roundness performance is superior to that of the same type of antenna.

It will be apparent to those skilled in the art that while the embodiments of the present invention have been shown and described, there are no difficulties in implementing the functions and features described above, and it is to be understood that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

An L-band high-gain omnidirectional antenna, characterized by comprising

The antenna comprises an antenna cover, an active excitation array arranged in the antenna cover and a combiner arranged at the end part of the antenna cover;

the active excitation arrays are arranged in pairs to form array groups; an array plug block is arranged between the two active excitation arrays in each array group, and the two active excitation arrays in each array group are connected through a connecting sheet; the active excitation arrays of the adjacent array groups are connected through connecting sheets; the outermost active excitation array is connected with the combiner.
2. The L-band high-gain omni directional antenna according to claim 1, wherein the high-gain omni directional antenna comprises 3 array sub-sets.
3. The L-band high-gain omni directional antenna according to claim 1, wherein a radio frequency connector is disposed outside the combiner at one end of the antenna cover.
4. The L-band high-gain omnidirectional antenna according to claim 1, wherein the antenna cover is a hollow cylindrical structure, one section of which is provided with a sealing plate and the other end of which is open; one combiner is arranged inside the closing plate of the antenna cover, and the other combiner is arranged at the opening part of the antenna cover.
5. The L-band high-gain omnidirectional antenna according to claim 4, wherein the radio frequency connector is disposed outside the open-end combiner.
6. The L-band high-gain omnidirectional antenna according to claim 4, wherein the open end of the antenna cover is provided with a mounting fixture.