CN207038711U - The frequency filtering microstrip slot antenna of one kind three - Google Patents
The frequency filtering microstrip slot antenna of one kind three Download PDFInfo
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- CN207038711U CN207038711U CN201720802840.9U CN201720802840U CN207038711U CN 207038711 U CN207038711 U CN 207038711U CN 201720802840 U CN201720802840 U CN 201720802840U CN 207038711 U CN207038711 U CN 207038711U
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Abstract
The utility model discloses the frequency filtering microstrip slot antenna of one kind three, including medium substrate and the input port being made on the medium substrate, cross resonator, the first open-circuit resonant device with half wavelength, the second open-circuit resonant device with half wavelength and open apertured fluting floor, wherein, the first open-circuit resonant device, second open-circuit resonant device is carried on the gap on fluting floor to obtain three radio-frequency radiation characteristics respectively, the feeder line of the input port is carried on cross resonator, three frequency filter effects are obtained by the gap on cross resonator excitation fluting floor again.The utility model antenna can realize good filtering characteristic and radiation characteristic, have the advantages that flexible design, low section, cost be low, high selectivity.
Description
Technical field
The technical field of antenna is the utility model is related to, refers in particular to the frequency filtering microstrip slot antenna of one kind three.
Background technology
As the high speed development of radio communication in recent years, filter antenna are integrated by wave filter and antenna due to it
Design and by vast concern.By the way that antenna to be used as to the last single order resonator of wave filter, obtaining with filter response
While reflectance factor, the gain of filter antenna will also have selectivity.This filter antenna structure is relative to traditional filtering
Device cascades the design of antenna by transmission line, avoids the impedance mismatch problem in traditional design, and the system reduced is whole
Body size.
Today, most is all based on single-band antenna on the research of filter antenna, and double frequency filter antenna is then few,
Three frequencies and the above are then substantially at blank stage.
Prior art is investigated, it is specific as follows：
2017, Xiu Yin Zhang et al. existed " IEEE TREANSACTIONS ON ANTENNAS AND
PROPAGATION " on deliver entitled " Low-Profile Dual-Band Filtering Patch Antenna and Its
Application to LTE MIMO System ", the paster of two block nestings is encouraged in literary by multimode resonator, devises one
Money double frequency filters paster antenna and applied it among mimo system.Antenna realizes good filter effect and radiation
Characteristic.
2017, Mao Chun-Xu et al. existed " IEEE TREANSACTIONS ON ANTENNAS AND
PROPAGATION " on deliver entitled " A Shared-Aperture Dual-Band Dual-Polarized Filtering-
Antenna-Array With Improved Frequency Response ", devise a double based on double panel structure
Frequency filtering paster antenna, antenna realize good end-fire characteristic and filtering characteristic.
Generally speaking, the research now on filter antenna is maked rapid progress, but on multifrequency filter antenna research but
Seldom.A kind of three new frequency filtering microstrip slot antennas are devised herein.The antenna has low section, simple in construction, Yi Jia
Work, low cost, the strong characteristic of selectivity, there is very high application value.
The content of the invention
The purpose of this utility model is overcome the deficiencies in the prior art and shortcoming, it is proposed that the frequency filtering micro-strip seam of one kind three
Gap antenna, good filtering characteristic and radiation characteristic can be realized, there is flexible design, low section, the low, high selectivity of cost etc.
Advantage.
To achieve the above object, technical scheme provided by the utility model is：The frequency filtering microstrip slot antenna of one kind three,
Including medium substrate and the input port being made on the medium substrate, cross resonator, there is half wavelength the
One open-circuit resonant device, the second open-circuit resonant device with half wavelength and apertured fluting floor is opened, wherein, described the
One open-circuit resonant device, the second open-circuit resonant device are carried on the gap on fluting floor to obtain three radio-frequency radiation characteristics respectively, described
The feeder line of input port is carried on cross resonator, then by the cross resonator excitation slot floor on gap come
Obtain three frequency filter effects.
The cross resonator is connected with short-circuit post.
The cross resonator corresponds to three working frequencies in three frequency resonance respectively.
The first open-circuit resonant device, the second open-circuit resonant device, cross resonator reduce chi using bending structure
It is very little.
The gap is rectangular aperture.
The utility model compared with prior art, has the following advantages that and beneficial effect：
1st, by using the frequency slot antenna of cross resonator excitation three, three frequency filtering characteristics is realized, improve system
Signal to noise ratio.
2nd, due to the cross-couplings between resonator and gap, finite frequency opening position generates radiation on gain curve
Zero point, improve the selectivity of filter antenna.
3rd, three frequencies filtering microstrip slot antenna of the present utility model has design simply, and good with outer selectivity, filtering is special
Property is good, the characteristics of easy processing.
4th, it is in light weight, cost is low, suitable work because of the present utility model three frequency filtering microstrip slot antennas be microstrip structure
Industry is produced in batches.
Brief description of the drawings
Fig. 1 is the structural representation that of the present utility model three frequencies filter microstrip slot antenna.
Fig. 2 is the emulation of vertical direction antenna gain and S parameter that of the present utility model three frequencies filter microstrip slot antenna
As a result.
Fig. 3 is the radiation efficiency simulation curve that of the present utility model three frequencies filter microstrip slot antenna.
Fig. 4 a are that of the present utility model three frequencies filter antenna pattern (H face and E of the microstrip slot antenna at 2.4GHz
One of face) simulation result.
Fig. 4 b are that of the present utility model three frequencies filter antenna pattern (H face and E of the microstrip slot antenna at 3.5GHz
Face) simulation result two.
Fig. 4 c are that of the present utility model three frequencies filter antenna pattern (H face and E of the microstrip slot antenna at 5.2GHz
Face) simulation result three.
Embodiment
The utility model is described further with reference to specific embodiment.
Three frequency filtering microstrip slot antennas shown in Figure 1, that the present embodiment is provided, including medium substrate 1 and making
In the input port 2 on the medium substrate 1, the first open-circuit resonant device 3 with half wavelength, with half wavelength
The second open-circuit resonant device 4, cross resonator 5 and the fluting floor for being provided with rectangular aperture 7, wherein, it is described first open circuit it is humorous
Shake device 3, the second open-circuit resonant device 4 is carried on the rectangular aperture 7 on fluting floor and obtains three radio-frequency radiation characteristics respectively, described defeated
The feeder line of inbound port 2 is carried on cross resonator 5, then encourages the rectangle on fluting floor by the cross resonator 5
Gap obtains three frequency filter effects；The cross resonator 5 is connected with short-circuit post 6, and the cross resonator 5 is in three frequencies
Rate resonance, three working frequencies are corresponded to respectively.In order to reduce overall dimensions, the first open-circuit resonant device 3, the second open-circuit resonant device 4,
Cross resonator 5 has carried out appropriate bending.Pass through the first open-circuit resonant of simulation optimization device 3, the second open-circuit resonant device 4
Length and position and the size of rectangular aperture 7, can be such that slot antenna is operated at 2.4GHz, 3.5GHz and 5.2GHz, and ten
The resonance at 2.4GHz, 3.5GHz and 5.2GHz respectively of font resonator 5.Port coupling has been obtained enough using finger-inserting type structure
End coupling.Input port 2 is 50 ohm of impedance matching in design.
It is shown in Figure 2, it is shown that in the S parameter and vertical direction of the above-mentioned three frequencies filtering microstrip slot antenna of the present embodiment
Antenna gain simulation result.From the figure, it can be seen that antenna has reached good impedance matching in three passbands, together
When due to the appearance of radiation zero, gain curve also shows that good selectivity, has very high attenuation outside a channel.Three passbands
Internal antenna maximum gain is respectively 0.1dBi, 0.7dBi, 1.5dBi.
It is shown in Figure 3, it is shown that above-mentioned three frequency of the present embodiment filters the radiation efficiency simulation curve of microstrip slot antenna.
From the figure, it can be seen that radiation efficiency has reached more than 70% in passband.
Exist referring to the above-mentioned three frequencies filtering microstrip slot antenna of the present embodiment shown in Fig. 4 a, 4b, 4c, is respectively illustrated
Radiation direction simulation result at 2.4GHz, 3.5GHz and 5.2GHz.From the figure, it can be seen that it can be obtained in each passband
Good omnidirectional radiation characteristic.
Embodiment described above is only the preferred embodiment of the utility model, not limits implementation of the present utility model with this
Scope, therefore the change that all shape, principles according to the utility model are made, all should cover in the scope of protection of the utility model.
Claims (5)
1. the frequency filtering microstrip slot antenna of one kind three, it is characterised in that：Including medium substrate and it is made on the medium substrate
Input port, cross resonator, the first open-circuit resonant device with half wavelength, second with half wavelength
Open-circuit resonant device and apertured fluting floor is opened, wherein, the first open-circuit resonant device, the second open-circuit resonant device load respectively
Three radio-frequency radiation characteristics are obtained on the gap on fluting floor, the feeder line of the input port is carried on cross resonator,
Three frequency filter effects are obtained by the gap on cross resonator excitation fluting floor again.
A kind of 2. three frequencies filtering microstrip slot antenna according to claim 1, it is characterised in that：The cross resonator
It is connected with short-circuit post.
A kind of 3. three frequencies filtering microstrip slot antenna according to claim 1, it is characterised in that：The cross resonator
In three frequency resonance, three working frequencies are corresponded to respectively.
A kind of 4. three frequencies filtering microstrip slot antenna according to claim 1, it is characterised in that：First open-circuit resonant
Device, the second open-circuit resonant device, cross resonator reduce size using bending structure.
A kind of 5. three frequencies filtering microstrip slot antenna according to claim 1, it is characterised in that：The gap is rectangular slits
Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802840.9U CN207038711U (en) | 2017-07-03 | 2017-07-03 | The frequency filtering microstrip slot antenna of one kind three |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802840.9U CN207038711U (en) | 2017-07-03 | 2017-07-03 | The frequency filtering microstrip slot antenna of one kind three |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207038711U true CN207038711U (en) | 2018-02-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720802840.9U Expired - Fee Related CN207038711U (en) | 2017-07-03 | 2017-07-03 | The frequency filtering microstrip slot antenna of one kind three |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221748A (en) * | 2017-07-03 | 2017-09-29 | 华南理工大学 | The frequency filtering microstrip slot antenna of one kind three |
| CN109193163A (en) * | 2018-07-03 | 2019-01-11 | 西安电子科技大学 | Three frequency filter antennas, radio system radio-frequency front-end based on minor matters load resonator |
| CN109378579A (en) * | 2018-10-15 | 2019-02-22 | 钟祥博谦信息科技有限公司 | A kind of filtering type slot antenna |
| CN111541018A (en) * | 2020-04-22 | 2020-08-14 | 北京邮电大学 | High-gain steep filtering fusion duplex integrated antenna |
-
2017
- 2017-07-03 CN CN201720802840.9U patent/CN207038711U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221748A (en) * | 2017-07-03 | 2017-09-29 | 华南理工大学 | The frequency filtering microstrip slot antenna of one kind three |
| CN109193163A (en) * | 2018-07-03 | 2019-01-11 | 西安电子科技大学 | Three frequency filter antennas, radio system radio-frequency front-end based on minor matters load resonator |
| CN109378579A (en) * | 2018-10-15 | 2019-02-22 | 钟祥博谦信息科技有限公司 | A kind of filtering type slot antenna |
| CN111541018A (en) * | 2020-04-22 | 2020-08-14 | 北京邮电大学 | High-gain steep filtering fusion duplex integrated antenna |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20180223 Termination date: 20190703 |