CN214068896U

CN214068896U - Antenna with a shield

Info

Publication number: CN214068896U
Application number: CN202120365332.5U
Authority: CN
Inventors: 顾菜军; 徐亚瑜
Original assignee: Nanjing Saigew Microwave Science & Technology Co ltd
Current assignee: Nanjing Saigew Microwave Science & Technology Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-08-27
Anticipated expiration: 2031-02-09

Abstract

The utility model provides an antenna, include antenna element and hold antenna element's first casing, antenna element is including being in first planar first irradiator, second irradiator and being in the planar third irradiator of second, first irradiator is snakelike line, the second irradiator with the one end of first irradiator links to each other, the third irradiator with the second irradiator links to each other. The antenna of the utility model has small size, convenient use and easy concealment; the gain in all directions is large, and the propagation distance is long; the return loss is small, and the transmitting efficiency is high; the bandwidth is large, and the applicability is wide.

Description

Antenna with a shield

Technical Field

The utility model relates to a wireless communication technology field, concretely relates to antenna.

Background

With the continuous development of modern society and science and technology, communication technology is also rapidly advanced. In a wireless communication system, the means for transmitting and receiving radio waves is called an antenna, and a modulated signal generated by a transmitter is transmitted to a transmitting antenna via a feeder line, converted into electromagnetic wave energy in space by the antenna, and after reaching a receiver, the specific electromagnetic wave energy from space is also converted back into the modulated signal by the antenna. The antenna is in military communication, and civil communication application is very wide: mobile internet, internet of things, radar, satellite remote sensing, and the like.

The current antenna mainly has the following defects:

1) the size is large: most meter wave antennas are large in size after the gain and the propagation distance are guaranteed, movement is not facilitated, certain height needs to be built for use, and therefore the concealment and the portability needed by military use can be affected.

2) The propagation distance is short: the transmission distance of most of the existing antennas can be greatly shortened under the conditions of ensuring small volume and using without being elevated.

3) The return loss is large: most antennas are not matched with actual equipment, use environments and the like, so that return loss is large, and the transmission efficiency of the antennas is affected.

4) And (3) narrow bandwidth: it is difficult for some antennas to meet the bandwidth required for operation.

5) Directionality: some antennas have good gain and propagation distance only in a specific direction, and the gain and propagation distance are reduced in all directions.

SUMMERY OF THE UTILITY MODEL

The utility model provides an antenna for solving the technical problems, which has smaller size, convenient use and easy concealment; the gain in all directions is large, and the propagation distance is long; the return loss is small, and the transmitting efficiency is high; the bandwidth is large, and the applicability is wide.

The utility model adopts the technical scheme as follows:

the utility model provides an antenna, includes antenna element and holds antenna element's first casing, antenna element is including being in first planar first radiator, second radiator and being in the planar third radiator of second, first radiator is snakelike line, the second radiator with the one end of first radiator links to each other, the third radiator with the second radiator links to each other.

The antenna unit further comprises a fourth radiator located on the first plane, and the fourth radiator is connected with the other end of the first radiator.

The antenna unit comprises a first substrate and a second substrate perpendicular to the first substrate, the first radiator, the second radiator and the fourth radiator are arranged on the first substrate, and the third radiator is arranged on the second substrate.

The first substrate comprises a rectangular portion and a semicircular portion, the first radiator and the fourth radiator are arranged on the rectangular portion, the fourth radiator is L-shaped, the width of the fourth radiator is larger than that of the first radiator, and the fourth radiator covers the semicircular portion.

The second substrate is rectangular, and the third radiator covers the second substrate.

The antenna further comprises a coaxial feed line, a feed line interface and a second shell for accommodating the coaxial feed line, wherein one end of the coaxial feed line is connected with the antenna unit, and the other end of the coaxial feed line is connected with the feed line interface.

The second shell is columnar, one end of the columnar second shell is connected and communicated with the first shell, and the other end of the columnar second shell is provided with the feeder line interface.

The side part of the columnar second shell is provided with a groove.

The utility model has the advantages that:

the antenna of the utility model has small size, convenient use and easy concealment; the gain in all directions is large, and the propagation distance is long; the return loss is small, and the transmitting efficiency is high; the bandwidth is large, and the applicability is wide.

Drawings

Fig. 1 is a schematic structural diagram of an antenna unit according to an embodiment of the present invention;

fig. 2 is a schematic external structural diagram of an antenna according to an embodiment of the present invention.

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.

As shown in fig. 1 and 2, the antenna of the embodiment of the present invention includes an antenna unit 10 and a first housing 20 that houses the antenna unit 10, the antenna unit 10 includes a first radiator 11, a second radiator 12 that are located on a first plane and a third radiator 13 that is located on a second plane, the first radiator 11 is in a serpentine shape, the second radiator 12 is connected to one end of the first radiator 11, and the third radiator 13 is connected to the second radiator 12.

Further, as shown in fig. 1, the antenna unit 10 may further include a fourth radiator 14 located on the first plane, where the fourth radiator 14 is connected to the other end of the first radiator 11.

It should be noted that an included angle is formed between the first plane and the second plane, so that the radiator of the antenna unit 10 is located in a three-dimensional space, and the first housing 20 accommodating the antenna unit 10 is a box-shaped three-dimensional structure. Preferably, the first plane and the second plane are perpendicular to each other.

In an embodiment of the present invention, the antenna unit 10 includes a first substrate and a second substrate perpendicular to the first substrate, the first radiator 11, the second radiator 12 and the fourth radiator 14 are disposed on the first substrate, and the third radiator 13 is disposed on the second substrate. Further, referring to fig. 1, the first substrate includes a rectangular portion and a semicircular portion, the first radiator 11 and the fourth radiator 14 are disposed in the rectangular portion, the fourth radiator 14 is L-shaped and has a width greater than that of the first radiator 11, the fourth radiator 14 covers the semicircular portion, the second substrate is rectangular, and the third radiator 13 covers the second substrate. In an embodiment of the present invention, the antenna unit 10 may be a PCB structure including two PCB substrate portions perpendicular to each other as shown in fig. 1, and the first to fourth radiators may be printed on the PCB substrate. The connection between the fourth radiator 14 and the first radiator 11 and the connection between the third radiator 13 and the second radiator 12 may be achieved during printing, and the connection between the second radiator 12 and the first radiator 11 may be achieved by later welding.

Further, as shown in fig. 2, the antenna of the embodiment of the present invention may further include a coaxial feeder (not shown in the figure), a feeder interface 30, and a second housing 40 accommodating the coaxial feeder. One end of the coaxial feed line is connected to the antenna unit 10, and the other end is connected to the feed line interface 30. The second housing 40 is in a cylindrical shape, one end of the second housing 40 is connected and communicated with the first housing 20, and the other end of the second housing 40 is provided with the feeder line interface 30. In one embodiment of the present invention, one end of the coaxial feed line is preferably connected to an end of any radiator, for example, an edge of the second radiator 12, the third radiator 13, or the fourth radiator 14.

In an embodiment of the present invention, as shown in fig. 2, a side portion of the second casing 40 having a column shape may be provided with a groove 41 to facilitate holding.

The utility model discloses the antenna, first irradiator are serpentine, have used for reference helical antenna's structure, use the radiation wavelength length of quarter, press helical antenna 3D structure to the plane, are equivalent to the serpentine, have reduced the whole size of antenna so greatly, do benefit to in-service use and conceal, it is portable, convenient the removal.

The utility model discloses the antenna is in another planar third irradiator through the setting, utilizes the space on the antenna height to effectively prolong the irradiator of antenna when no longer increasing the antenna length width, reduces return loss greatly.

The utility model discloses the antenna holds three-dimensional antenna unit's three-dimensional casing through the setting, can increase the equivalent medium thickness of antenna to improve the work bandwidth, the casing chooses for use appropriate dielectric constant dielectric material, reducible influence to antenna gain, antenna operating distance is far away in the in-service use.

The utility model discloses the antenna through the rationally distributed irradiator in space, can also further reduce the volume of antenna, can carry out concrete adjustment to the angle that the antenna is more weak moreover, just so make the antenna can come nimble adjustment according to specific service environment, the customization need not make again, practices thrift research and development expense and time, has the advantage of omnidirectional, can place in a flexible way in the in-service use.

The utility model discloses antenna is applicable to the meter wave band.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An antenna, characterized in that, include antenna element and hold antenna element's first casing, antenna element is including being in first planar first radiator, second radiator and being in the planar third radiator of second, first radiator is snakelike threadiness, the second radiator with the one end of first radiator links to each other, the third radiator with the second radiator links to each other.

2. The antenna of claim 1, wherein the antenna unit further comprises a fourth radiator in the first plane, the fourth radiator being connected to the other end of the first radiator.

3. The antenna of claim 2, wherein the antenna unit comprises a first substrate and a second substrate perpendicular to the first substrate, wherein the first radiator, the second radiator, and the fourth radiator are disposed on the first substrate, and wherein the third radiator is disposed on the second substrate.

4. The antenna of claim 3, wherein the first substrate comprises a rectangular portion and a semicircular portion, the first radiator and the fourth radiator are disposed on the rectangular portion, the fourth radiator is L-shaped and has a larger width than the first radiator, and the fourth radiator covers the semicircular portion.

5. The antenna of claim 4, wherein the second substrate is rectangular and the third radiator covers the second substrate.

6. The antenna of any one of claims 1-5, further comprising a coaxial feed line, a feed line interface, and a second housing containing the coaxial feed line, the coaxial feed line having one end connected to the antenna element and another end connected to the feed line interface.

7. The antenna of claim 6, wherein the second housing is cylindrical, one end of the cylindrical second housing is connected to and communicated with the first housing, and the other end of the cylindrical second housing is provided with the feeder line interface.

8. An antenna according to claim 7, wherein the side of the second cylindrical housing is provided with a recess.