CN208873883U - A kind of three frequency slot antennas - Google Patents
A kind of three frequency slot antennas Download PDFInfo
- Publication number
- CN208873883U CN208873883U CN201821468082.2U CN201821468082U CN208873883U CN 208873883 U CN208873883 U CN 208873883U CN 201821468082 U CN201821468082 U CN 201821468082U CN 208873883 U CN208873883 U CN 208873883U
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- CN
- China
- Prior art keywords
- medium substrate
- metal floor
- patch
- frequencies
- slot antenna
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of three frequency slot antennas, are made of radiating element, feed probes, metal floor and medium substrate.Radiating element is made of the patch on medium substrate, which is rectangular patch, has gap on the rectangular patch, places a metal floor in medium substrate bottom.This antenna size is 90mm*90mm*3mm, has the characteristics that miniaturization；- 10dB frequency range is 3.58~3.72GHz, 7.14~7.91GHz, 8.33~8.92GHz, and there are three working bands for tool, has good impedance matching.Highest-gain reaches 6.3dB, can be realized directed radiation, is the good slot antenna of a application prospect.
Description
Technical field
The utility model relates to the communications fields, more particularly to a kind of antenna.
Background technique
With flourishing for wireless communication cause, wireless communication technique has been widely used for national product, social work
Make, the various aspects of people's lives.Microstrip antenna is widely studied and applied as miniature antenna.
In order to reduce electromagnetic interference, cost is reduced, is necessary using the antenna of support multiband.In recent years, occur
A variety of methods for realizing multiband aerials, the unipole antenna, improved plane inverse-F (PIFA) antenna of such as deformation and other uses
The paster antenna of various patch form.The antenna applied at present is not suitable for the requirement of indoor wireless communication, new indoor day
The design of line, the performance indexes for not requiring nothing more than antenna can satisfy the requirement of indoor wireless communication, and in appearance, answer
This is minimized as far as possible, is occupied the limited interior space less, is put forward new requirements to Antenna Design.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of three frequency slot antennas.
A kind of three frequency slot antennas, are made of, the medium radiating element, feed probes, metal floor and medium substrate
Substrate is square, in medium substrate bottom place a metal floor, the metal floor is square, and the metal
The size of plate is 2 times of medium substrate size；The radiating element is made of the patch on medium substrate, which is rectangle patch
Piece；There is gap above the rectangular patch, which is forked type gap, and the feed probes are coaxial probe.
The medium substrate is located at metal floor center, and about central symmetry.
The rectangular patch is located at medium substrate center, and about central symmetry.
The coaxial probe is located at center left 1mm, at central lower 2mm.
The width of four walls in forked type gap is equal.
The forked type gap is symmetrically placed about horizontal axis.
The medium substrate uses FR-4 dielectric material.
The effect of the utility model is: compared with traditional antenna, this antenna size is 90mm*90mm*3mm, is had small
The characteristics of type；- 10dB frequency range is 3.58~3.72GHz, 7.14~7.91GHz, 8.33~8.92GHz, and there are three work for tool
Frequency band has good impedance matching.Highest-gain reaches 6.3dB, can be realized directed radiation, is that a application prospect is good
Slot antenna.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the example of the utility model.
Fig. 2 is the S11 characteristic curve of the example of the utility model.
Fig. 3 is the VSWR characteristic curve of the example of the utility model.
Fig. 4 is the face the E characteristic curve of the example of the utility model.
Specific embodiment
With reference to the accompanying drawing and embodiment is described in further detail the utility model.
As shown in Figure 1, a kind of three frequency slot antennas, by radiating element, feed probes, metal floor and medium substrate group
At, the medium substrate is square, medium substrate bottom place a metal floor, the metal floor be pros
Shape, and the size of the metal floor is 2 times of medium substrate size；The radiating element is made of the patch on medium substrate,
The patch is rectangular patch；There is gap above the rectangular patch, which is forked type gap, and the feed probes are same
Axis probe.
The medium substrate is located at metal floor center, and about central symmetry.
The rectangular patch is located at medium substrate center, and about central symmetry.
The coaxial probe is located at center left 1mm, at central lower 2mm.
The width of four walls in forked type gap is equal.
The forked type gap is symmetrically placed about horizontal axis.
The medium substrate uses FR-4 dielectric material.
Simulation analysis is carried out using electromagnetic simulation software Ansoft HFSS, obtains antenna size structure: Wd=90mm, Ld
=90mm, Ls=45mm, Ws=45mm, Lp=17.6mm, Wp=16.3mm, H=3mm.As shown in Figure 1.
Fig. 2 be the example of the utility model S11 characteristic curve, -10dB frequency range be 3.58~3.72GHz, 7.14~
7.91GHz, 8.33~8.92GHz, maximum band depth are -25dB.
Fig. 3 is the VSWR characteristic curve of the example of the utility model, the frequency bandwidths of VSWR≤5 be 3.62~3.77GHz,
7.2~7.9GHz, 8.4~8.89GHz.
Fig. 4 is the directional diagram of the example of the utility model, which is able to achieve directed radiation, and highest-gain reaches
6.3dB。
The foregoing is merely the most preferred embodiments of the utility model, are not intended to limit the utility model, all at this
Any modifications, equivalent replacements, and improvements done within the spirit and principle of utility model, should be included in the utility model
Within protection scope.
Claims (7)
1. a kind of three frequency slot antennas, are made of radiating element, feed probes, metal floor and medium substrate, it is characterised in that:
The medium substrate is square, place a metal floor in medium substrate bottom, the metal floor is square, and
The size of the metal floor is 2 times of medium substrate size；The radiating element is made of the patch on medium substrate, the patch
For rectangular patch；There is gap above the rectangular patch, which is forked type gap, and the feed probes are coaxial visit
Needle.
2. a kind of three frequencies slot antenna according to claim 1, it is characterised in that: the medium substrate is located at metal floor
Center, and about central symmetry.
3. a kind of three frequencies slot antenna according to claim 1, it is characterised in that: the rectangular patch is located at medium substrate
Center, and about central symmetry.
4. a kind of three frequencies slot antenna according to claim 1, it is characterised in that: the coaxial probe is located at center left
At 1mm, at central lower 2mm.
5. a kind of three frequencies slot antenna according to claim 1, it is characterised in that: the width of four walls in forked type gap
It is equal.
6. a kind of three frequencies slot antenna according to claim 5, it is characterised in that: the forked type gap is symmetrical about horizontal axis
It places.
7. a kind of three frequencies slot antenna according to claim 1, it is characterised in that: the medium substrate uses FR-4 medium
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821468082.2U CN208873883U (en) | 2018-09-10 | 2018-09-10 | A kind of three frequency slot antennas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821468082.2U CN208873883U (en) | 2018-09-10 | 2018-09-10 | A kind of three frequency slot antennas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873883U true CN208873883U (en) | 2019-05-17 |
Family
ID=66467064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821468082.2U Expired - Fee Related CN208873883U (en) | 2018-09-10 | 2018-09-10 | A kind of three frequency slot antennas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129741A (en) * | 2020-01-13 | 2020-05-08 | 深圳市信维通信股份有限公司 | 5G millimeter wave dual-frequency antenna system based on metal frame and mobile terminal |
-
2018
- 2018-09-10 CN CN201821468082.2U patent/CN208873883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129741A (en) * | 2020-01-13 | 2020-05-08 | 深圳市信维通信股份有限公司 | 5G millimeter wave dual-frequency antenna system based on metal frame and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20200910 |