CN110112556A - A kind of Multifunctional radio-frequency device that dual-polarized patch antenna is merged with filter - Google Patents
A kind of Multifunctional radio-frequency device that dual-polarized patch antenna is merged with filter Download PDFInfo
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- CN110112556A CN110112556A CN201910412240.5A CN201910412240A CN110112556A CN 110112556 A CN110112556 A CN 110112556A CN 201910412240 A CN201910412240 A CN 201910412240A CN 110112556 A CN110112556 A CN 110112556A
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- 239000000758 substrate Substances 0.000 claims abstract description 36
- 230000005855 radiation Effects 0.000 claims abstract description 33
- 230000003071 parasitic effect Effects 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 12
- 230000009977 dual effect Effects 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 description 8
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000004927 fusion Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000005388 cross polarization Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses the Multifunctional radio-frequency device that a kind of dual-polarized patch antenna is merged with filter, including three layers of dielectric-slab, parasitic patch is arranged in top layer medium substrate upper surface；Radiation patch is arranged in the interlayer upper surface of base plate, and cross feed line is arranged in lower surface, and the end of the cross feed line is connected with radiation patch；Floor is arranged in the upper surface of the underlying dielectric substrate, and short-circuit minor matters line and matching network is arranged in lower surface, and the short circuit minor matters line and cross feed line constitute bandpass filter；The parasitic patch, radiation patch and cross feed line constitute dual polarized antenna；The invention has two kinds of operating modes of dual polarized antenna and bandpass filter, can according to need adjustment operating mode without changing circuit structure, and two kinds of operating modes are independent.
Description
Technical field
The present invention relates to the antenna research field in wireless mobile communications field, in particular to a kind of dual-polarized patch antenna with
The Multifunctional radio-frequency device of filter fusion.
Background technique
With the progress of the research of next-generation intelligence system and automation equipment, more and more sight, which start to invest, to be weighed
Structure device.Reconfigurable device can be used in combination with programmable element, realize the operating mode of controllable multimode, be both able to achieve system
Multiple functions, and can be reduced the use number of system device, realize the miniaturization effect of system.
Two important components of filter and antenna as radio-frequency front-end, researcher can for filter and antenna
Reconstruct research has put into a large amount of energy.Wherein, the restructural of filter includes that the working frequency of filter is changeable, bandwidth
It is adjustable etc.；The restructural of antenna includes that the radiation mode of antenna is restructural, and operating mode is changeable, and working frequency is changeable etc..
But these work only realize single function (filter or antenna), and there is no realize to break through in the type of function.
Start filter and antenna carrying out Combined design there are also people, filter can be served as by designing, and can also be filled
When filter and antenna function reconfigurable device/multifunction device of antenna.As in the design of filter antenna, antenna
Radiator be simultaneously also a resonator, this point is in design filter and antenna function reconfigurable device/multifunction device
When can also be used.Unlike, it is the afterbody resonator that antenna is substituted to filter when filter antenna designs,
And eliminate the port being connected with afterbody resonator and the input port of antenna of filter；And design filter and antenna
It is then and to remain filter using antenna as the first resonator among filter when reconfigurable function device/multifunction device
The all of the port of wave device, or even also remain the input port of antenna.In this way, by selecting different working ports, so that it may
It is worked respectively in filter or antenna mode.That is, such a device is achieved that two kinds of functions of filter and antenna.
The device of some multifunction microwave elements or programmable microwave component has been developed at this stage, and existing literature is recorded logical
It crosses and proposes a kind of filter and the integrated two-in-one design of antenna using difunctional cavity resonator, realize three differences
The filtering of frequency band and radiation operations, but bandwidth only has 0.33%；Also have in document using patch or dielectric resonator as identical
The radiator and filter of frequency, radiator only have single polarization application；And in the designs, filter and antenna duplexer
Resonator, therefore their centre frequency or bandwidth are unable to independent tuning, also, their antenna cannot be in the same frequency
Realize dual polarization work.
Summary of the invention
In order to overcome shortcoming and deficiency of the existing technology, the present invention provides a kind of dual-polarized patch antenna and filter
The Multifunctional radio-frequency device of fusion.
The device has two kinds of operating modes of dual polarized antenna and bandpass filter, can according to need adjustment operating mode
Without changing circuit structure, and two kinds of operating modes are independent.
The present invention adopts the following technical scheme:
A kind of Multifunctional radio-frequency device that dual-polarized patch antenna is merged with filter, including three layers of medium substrate, from upper
It is successively top layer medium substrate, interlayer substrate and underlying dielectric substrate down；
Parasitic patch is arranged in top layer medium substrate upper surface；
The interlayer upper surface of base plate setting radiation patch, lower surface setting cross feed line, described ten
The end of font feed line is connected with radiation patch；
Floor is arranged in the upper surface of the underlying dielectric substrate, and short-circuit minor matters line and matching network, institute is arranged in lower surface
It states short-circuit minor matters line one end and is connected in parallel on matching network on one end of underlying dielectric plate center, the short circuit minor matters line is another
One end is connect with floor, and the matching network passes through underlying dielectric substrate and connect by metal wire with cross feed line；
The short circuit minor matters line and cross feed line constitute bandpass filter；
The parasitic patch, radiation patch and cross feed line constitute dual polarized antenna.
The radiation patch and parasitic patch are symmetrical structure, and the symmetrical structure includes square or circle.It is described
Short-circuit minor matters line is the quarter-wave of bandpass filter working frequency.
The lateral minor matters length of the cross feed line or longitudinal minor matters length are the four of bandpass filter working frequency
/ mono- wavelength.
The matching network is sequentially connected by four sections of microstrip lines of different size and is constituted, and end is port.
The floor is square metal patch.
The decussation point of the cross feed line is the central point of interlayer substrate.
The parasitic patch and radiation patch generate an antipodal points of control antenna passband；
The cross feed line and short-circuit minor matters line generate an antipodal points of control filter passband；
Two antipodal points are mutually indepedent.
Compared with prior art, the invention has the following beneficial effects:
1, the Multifunctional radio-frequency device of a kind of dual-polarized patch antenna of the present invention and filter fusion, both may be used as bipolar
Change antenna, is also used as filter use, there is reconfigurable function characteristic.
2, the Multifunctional radio-frequency device of a kind of dual-polarized patch antenna of the present invention and filter fusion, can be by adjusting ten
Font feeds the length of line length and bottom short circuit minor matters line to control filter centre frequency, by adjusting parasitic patch and spoke
The side length of patch is penetrated to control the center operating frequency of antenna.
3, the Multifunctional radio-frequency device of a kind of dual-polarized patch antenna of the present invention and filter fusion, parasitic patch and radiation
Patch has little effect filter frequencies, and the length of cross feed line and bottom short circuit minor matters line is to operating frequency of antenna
It does not almost influence, can according to need the operating mode of selection filter and antenna, promote the design of difunctional component.
Detailed description of the invention
Fig. 1 is fractionation structure chart of the invention；
Fig. 2 is side view of the invention；
Fig. 3 (a) and Fig. 3 (b) is the reverse side and Facad structure figure of top layer medium substrate of the invention；
Fig. 4 (a) and Fig. 4 (b) is the reverse side and Facad structure figure of interlayer substrate of the invention；
Fig. 5 (a) and Fig. 5 (b) is the reverse side and Facad structure figure of underlying dielectric substrate of the invention；
Fig. 6 is S parameter simulation result diagram when changing parasitic patch side length in the specific embodiment of the invention under different frequency；
Fig. 7 is S parameter simulation result diagram when changing radiation patch side length in the specific embodiment of the invention under different frequency；
Fig. 8 is S parameter emulation knot when changing cross feed line length in the specific embodiment of the invention under different frequency
Fruit figure；
Fig. 9 is the measurement and simulation result diagram of actual gain under different frequency in the specific embodiment of the invention；
Figure 10 is the measurement and simulation result diagram of S parameter under different frequency in the specific embodiment of the invention；
Figure 11 be the specific embodiment of the invention at center operating frequency 2.4GHz only motivate a port E planar survey and
Simulated radiation ideograph；
Figure 12 be the specific embodiment of the invention at center operating frequency 2.4GHz only motivate a port H planar survey and
Simulated radiation ideograph.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3 (a) and Fig. 3 (b), Fig. 4 (a) and Fig. 4 (b), Fig. 5 (a) and Fig. 5 (b), a kind of dual polarization
The Multifunctional radio-frequency device that paster antenna is merged with filter, the device are dual-port devices, can not change circuit structure
In the case where, while realizing two kinds of functions of filter and dual polarized antenna, filter is different with the working frequency of antenna, and can be only
Vertical control.
It is successively that top layer medium substrate 2, interlayer substrate 5 and bottom are situated between from top to bottom including three layers of medium substrate
Matter substrate 8, the central point of three layers of medium substrate is on same vertical line, between the top layer medium substrate and underlying dielectric substrate
It is big every the spacing distance than interlayer substrate and underlying dielectric substrate.
A rectangular parasitic patch 1 is arranged in the upper surface of the top layer medium substrate 2, and the central point of parasitic patch is top
The central point of layer medium substrate.
A rectangular radiation patch 3 is arranged in the upper surface of the interlayer substrate 5, and cross is arranged in lower surface
The end of feed line 6, the cross feed line is connected by metallic vias 4 with radiation patch；The intersection of cross feed line
Point and the central point of radiation patch are the central point of interlayer substrate.
The radiation patch and parasitic patch can be square sheet metal, or other symmetrical structures such as circle.
The cross feed line is made of lateral minor matters and longitudinal minor matters square crossing, and cross feed line is a tool
There is the structure of axial symmetry and central symmetry feature, width can be uniformly, and the width of width and both ends that can also be intermediate is not
Together, metallic vias is respectively positioned on the both ends of lateral minor matters, the both ends of longitudinal minor matters.Lateral minor matters and longitudinal minor matters are in the present embodiment
The structure of intermediate narrow two hem width.The structure of the cross feed line is located at the underface of radiation patch, to enhance Antenna Operation
Port isolation under mode.
A square metal patch is arranged as floor 7 in the upper surface of the underlying dielectric substrate 8, and lower surface setting is short
Road minor matters line 12, matching network 9 and device interface, one end of short-circuit minor matters line are connected in parallel on matching network in underlying dielectric plate
One end of heart position, there are two device interfaces for the present embodiment tool, and matching network and short-circuit minor matters line are two, the short circuit branch
The other end, that is, end of nodel line is connect by metallic vias 11 with floor, and the matching network 9 is close to underlying dielectric substrate center
One end of position is upwardly extended by metal wire 10 across underlying dielectric substrate and is connect with cross feed line.
The matching network can realize the matching of bandpass filter and dual polarized antenna simultaneously, of different size micro- by four sections
Band line 13,14,15,16 is sequentially connected composition, and 16 end of microstrip line is port, and two device interfaces are located at underlying dielectric base
The midpoint of the adjacent right-angle side of plate.Corresponding two matching networks of two device interfaces, two short-circuit minor matters lines and two metal mistakes
Hole.
The short circuit minor matters line and cross feed line realize bandpass filter operating mode；
The parasitic patch, radiation patch and cross feed line realize antenna operating mode；
The frequency for adjusting the adjustable antenna operating mode of size of radiation patch 3 and parasitic patch 1, does not influence filter
Working frequency.
Adjust the length of the cross feed line 6 and the length of the short-circuit minor matters line 12, adjustable filter work
The frequency of operation mode does not influence the frequency of antenna operating mode.
The length laterally or longitudinally of cross feed line 6 is about that filter working frequency is equivalent to quarter-wave
It is long.
The length of the short circuit minor matters line 12 is about that filter working frequency is equivalent to quarter-wave.
A kind of described dual-polarized patch antenna and the Multifunctional radio-frequency device of filter fusion are by cross feed line, short
One antipodal points of the control filter passband that road minor matters line generates leads to the control antenna by parasitic patch, radiation patch generation
One antipodal points of band is independent of each other between two antipodal points, and independently of each other, the property of can choose realizes the radiation function of dual polarized antenna
With the circuit function of filter, the reconfigurability of the device is embodied.
It is the imitative of the S- frequency curve in a specific embodiment of the invention when changing parasitic patch side length refering to Fig. 6
True figure.As can be seen that in the present embodiment, it can be in low frequency pass band, that is, Antenna Operation frequency by controlling rectangular parasitic patch side length
With one pole of interior generation, and changing influence of the parasitic patch side length to the pole in high frequency pass band, that is, filter working band can
To ignore, but another pole generates certain influence to low frequency pass band.It can be seen that antenna related parameters and filter phase
Close influences to ignore between parameter.It is also seen that antenna is independent of each other with two operating modes of filter.
It is the imitative of the S- frequency curve in a specific embodiment of the invention when changing radiation patch side length refering to Fig. 7
True figure.As can be seen that in the present embodiment, it can be in low frequency pass band, that is, antenna operating band by control radiation patch side length
Generate a pole, and changing influence of the radiation patch side length to the interior pole of high frequency pass band, that is, filter working band can be with
Ignore, but another pole generates certain influence to low frequency pass band.It can be seen that antenna related parameters are related to filter
It influences to ignore between parameter.It is also seen that antenna is independent of each other with two operating modes of filter.
It is the imitative of the S- frequency curve in a specific embodiment of the invention when changing cross feed line refering to Fig. 8
True figure.As can be seen that in the present embodiment, a pole can be generated in high frequency pass band by feeding line length by control cross
Point, and influence of the change cross feed line length to the pole in low frequency pass band can be ignored.It can be seen that antenna correlation ginseng
It influences to ignore between several and filter relevant parameter.It is also seen that antenna and two operating modes of filter are only mutually
Vertical.
Actual gain curve-frequency refering to Fig. 9, when being independent actuation single port in a specific embodiment of the invention
Measurement and analogous diagram.It can be seen that the impedance bandwidth of emulation and test is essentially 2.23-2.55GHz and 3.66-3.86GHz.
As can be seen that simulation result S and test result S have good consistency.
Refering to fig. 10, be S11- frequency in a specific embodiment of the invention, S12- frequency and S22- frequency measurement and
Simulation result diagram.It can be seen that the result of the S11 and S22 of emulation and test have good consistency, 2 ports are embodied
Independence.As can be seen that S11/S22 have the larger value when, S21 have smaller value, embody 2 ports of passband have compared with
Strong isolation, two ports influence each other smaller.It can also be seen that simulation result and test result have good consistency.
Refering to fig. 11, it is only to motivate a port at center operating frequency 2.4GHz in a specific embodiment of the invention
Measurement and simulated radiation ideograph, it can be seen that obtained in E plane horizontal less than the low-cross polarization of 20dB.
Refering to fig. 12, it is only to motivate a port at center operating frequency 2.4GHz in a specific embodiment of the invention
Measurement and simulated radiation ideograph, it can be seen that obtained in H plane horizontal less than the low-cross polarization of 15dB.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. the Multifunctional radio-frequency device that a kind of dual-polarized patch antenna is merged with filter, which is characterized in that including three layers of medium
Substrate is successively top layer medium substrate, interlayer substrate and underlying dielectric substrate from top to bottom；
Parasitic patch is arranged in top layer medium substrate upper surface；
Radiation patch is arranged in the interlayer upper surface of base plate, and cross feed line, the cross is arranged in lower surface
The end of feed line is connected with radiation patch；
Floor is arranged in the upper surface of the underlying dielectric substrate, and short-circuit minor matters line and matching network is arranged in lower surface, described short
One end of road minor matters line is connect with matching network, and the other end of the short circuit minor matters line is connect with floor, and the matching network is worn
Underlying dielectric substrate is crossed to connect by metal wire with cross feed line；
The short circuit minor matters line and cross feed line constitute bandpass filter；
The parasitic patch, radiation patch and cross feed line constitute dual polarized antenna.
2. Multifunctional radio-frequency device according to claim 1, which is characterized in that the radiation patch and parasitic patch are pair
Claim structure, the symmetrical structure includes square or circle.
3. Multifunctional radio-frequency device according to claim 1, which is characterized in that the short circuit minor matters line is bandpass filter
The quarter-wave of working frequency.
4. Multifunctional radio-frequency device according to claim 1, which is characterized in that the lateral minor matters of the cross feed line
Length or longitudinal minor matters length are the quarter-wave of bandpass filter working frequency.
5. Multifunctional radio-frequency device according to claim 1, which is characterized in that the matching network is of different size by four sections
Microstrip line be sequentially connected composition, end is port.
6. Multifunctional radio-frequency device according to claim 1, which is characterized in that the floor is square metal patch.
7. Multifunctional radio-frequency device according to claim 1, which is characterized in that the cross of the cross feed line is handed over
Crunode is the central point of interlayer substrate.
8. Multifunctional radio-frequency device according to claim 1, which is characterized in that
The parasitic patch and radiation patch generate an antipodal points of control antenna passband；
The cross feed line and short-circuit minor matters line generate an antipodal points of control filter passband；
Two antipodal points are mutually indepedent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412240.5A CN110112556B (en) | 2019-05-17 | 2019-05-17 | Multifunctional radio frequency device with dual-polarized patch antenna and filter fused |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412240.5A CN110112556B (en) | 2019-05-17 | 2019-05-17 | Multifunctional radio frequency device with dual-polarized patch antenna and filter fused |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110112556A true CN110112556A (en) | 2019-08-09 |
| CN110112556B CN110112556B (en) | 2024-01-19 |
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ID=67490828
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910412240.5A Active CN110112556B (en) | 2019-05-17 | 2019-05-17 | Multifunctional radio frequency device with dual-polarized patch antenna and filter fused |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688079A (en) * | 2020-12-21 | 2021-04-20 | 华南理工大学 | Dual-polarized wide beam antenna based on loading bent grounding metal column |
| CN117353047A (en) * | 2023-10-10 | 2024-01-05 | 广州程星通信科技有限公司 | Broadband wide-angle scanning phased array antenna unit and array thereof |
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| US20030020655A1 (en) * | 2001-07-26 | 2003-01-30 | Mckinzie William E. | Reduced weight artificial dielectric antennas and method for providing the same |
| CN1636299A (en) * | 2001-09-24 | 2005-07-06 | 塔莱斯荷兰公司 | Patch fed printed antenna |
| CN101273491A (en) * | 2005-07-12 | 2008-09-24 | 欧洲Gnss监督管理局 | Multi-band antenna for satellite positioning system |
| CN108847521A (en) * | 2018-05-04 | 2018-11-20 | 杭州电子科技大学 | Broadband fed microstrip filter antenna |
| CN209948041U (en) * | 2019-05-17 | 2020-01-14 | 华南理工大学 | Multifunctional radio frequency device with dual-polarized patch antenna and filter integrated |
-
2019
- 2019-05-17 CN CN201910412240.5A patent/CN110112556B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030020655A1 (en) * | 2001-07-26 | 2003-01-30 | Mckinzie William E. | Reduced weight artificial dielectric antennas and method for providing the same |
| CN1636299A (en) * | 2001-09-24 | 2005-07-06 | 塔莱斯荷兰公司 | Patch fed printed antenna |
| CN101273491A (en) * | 2005-07-12 | 2008-09-24 | 欧洲Gnss监督管理局 | Multi-band antenna for satellite positioning system |
| CN108847521A (en) * | 2018-05-04 | 2018-11-20 | 杭州电子科技大学 | Broadband fed microstrip filter antenna |
| CN209948041U (en) * | 2019-05-17 | 2020-01-14 | 华南理工大学 | Multifunctional radio frequency device with dual-polarized patch antenna and filter integrated |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688079A (en) * | 2020-12-21 | 2021-04-20 | 华南理工大学 | Dual-polarized wide beam antenna based on loading bent grounding metal column |
| CN117353047A (en) * | 2023-10-10 | 2024-01-05 | 广州程星通信科技有限公司 | Broadband wide-angle scanning phased array antenna unit and array thereof |
| CN117353047B (en) * | 2023-10-10 | 2024-05-17 | 广州程星通信科技有限公司 | Broadband wide-angle scanning phased array antenna unit and array thereof |
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| Publication number | Publication date |
|---|---|
| CN110112556B (en) | 2024-01-19 |
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