CN106252872A - Same polarization micro-strip duplexed antenna array - Google Patents
Same polarization micro-strip duplexed antenna array Download PDFInfo
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- CN106252872A CN106252872A CN201610861115.9A CN201610861115A CN106252872A CN 106252872 A CN106252872 A CN 106252872A CN 201610861115 A CN201610861115 A CN 201610861115A CN 106252872 A CN106252872 A CN 106252872A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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Abstract
The invention discloses a kind of same polarization micro-strip duplexed antenna array, including two identical symmetrically placed micro-strip paster antennas and an anti-phase power distributing network with duplex capability, described anti-phase power distributing network includes power distribution microstrip line, sends microstrip bandstop filter, transmission impedance transformation microstrip line, reception microstrip bandstop filter and receive impedance transformation microstrip line；The one end sending microstrip bandstop filter is connected with sending port, and the other end is connected with power distribution microstrip line by sending impedance transformation microstrip line；The one end receiving microstrip bandstop filter is connected with receiving port, and the other end is connected with power distribution microstrip line by receiving impedance transformation microstrip line.The present invention devises one i.e. to be had duplex capability, has again the duplexing power distributing network of power dividing function, and the structure comparison of antenna is compact, and gain is higher.Simultaneously by arranging transmission and receiving microstrip bandstop filter, it is achieved that the high-isolation between transmission and receiving port.
Description
Technical field
The invention belongs to wireless communication technology field, particularly to a kind of same polarization micro-strip duplexed antenna array.
Background technology
Antenna-feedback system be wireless communication system foremost, be the indispensable critical component of wireless communication system.Antenna feeder
System includes antenna, wave filter and duplexer, and traditional method is that three is individually designed, is then attached with radio-frequency cable.Lack
Point is that three is required for matching network alone and 50 ohm of feeder lines mate, and brings the problem that volume is big, total amount is heavy, with
Time, too much matching network brings the shortcoming that loss is big.
Along with the development of radio communication, communication system increasingly trends towards miniaturization and integrated, therefore, the sky of integration
Feedback system has great demand.The front-end devices such as antenna, wave filter, duplexer are combined and are designed by duplexed antenna, it is possible to
The structure making radio-frequency front-end system is compacter, reduces unnecessary loss and introduces so that the miniaturization of communication system and collection
One-tenthization is more prone to realize.
In existing technology, have and be capable of the antenna of duplex capability (transmitting and receiving signal is carried out simultaneously) predominantly
Dual polarized antenna, the antenna of the type launches and accepts signal and use different polarization modes, and the transmitting of antenna receives and can work
In identical frequency range or different frequency ranges.But, in most communication system, launch and reception often requires that it is homopolarity
Change, and require that the directional diagram launched with receive is the most consistent.Therefore, developing that like-polarized duplexed antenna has the most very much must
Want.
At present, the design of same polarization duplexed antenna mainly utilizes microband paste or two equipolarizations of groove structural radiation
Pattern.By the isolation between pattern, or in feeding network, add resonance structure, form filter antenna with irradiation structure, real
Interport isolation between existing two same polarization operating frequencies.The same polarization duplexed antenna proposed at present, launches and receives two frequencies
The interval of rate is bigger, and interport isolation is typically between 20-30dB, and the gain of antenna is at below 5dBi.Therefore, at present
Same polarization duplexed antenna to there is interport isolation on the whole the highest, antenna transmitting-receiving frequency interval is relatively big, and the gain of antenna is not
High shortcoming.
Summary of the invention
It is an object of the invention to the shortcoming overcoming prior art with not enough, it is provided that a kind of same polarization micro-strip duplexed antenna battle array
Row, compared with existing same polarization duplexed antenna, the transmitting of antenna is relatively near with reception frequency interval, and the port received launched by antenna
Isolation is high, and the gain of antenna is higher.
The purpose of the present invention is realized by following technical scheme: same polarization micro-strip duplexed antenna array, including two phases
Same symmetrically placed micro-strip paster antenna and an anti-phase power distributing network with duplex capability, described anti-phase power divides
Distribution network includes power distribution microstrip line, sends microstrip bandstop filter, transmission impedance transformation microstrip line, reception micro-strip band resistance filter
Ripple device and reception impedance transformation microstrip line；The one end sending microstrip bandstop filter is connected with sending port, and the other end is by sending out
Impedance transformation microstrip line is sent to be connected with power distribution microstrip line；The one end receiving microstrip bandstop filter is connected with receiving port,
The other end is connected with power distribution microstrip line by receiving impedance transformation microstrip line.
Preferably, described transmission microstrip bandstop filter exists with power distribution microstrip line by sending impedance transformation microstrip line
Distance power distributes microstrip line central point λG sends outIt is connected at/4, λG sends outFor sending signal wavelength on power distribution microstrip line.
Preferably, described reception microstrip bandstop filter exists with power distribution microstrip line by receiving impedance transformation microstrip line
The power distribution opposite side of microstrip line central point and distance center point λG receivesIt is connected at/4, λG receivesDistribute at power for receiving signal
Wavelength on microstrip line.
Concrete, described same polarization micro-strip duplexed antenna array, also include two upper layer medium substrate being placed in parallel and
Layer dielectric substrate, the upper surface of layer dielectric substrate is coated with the reflection floor of metal, and bottom surface arranges anti-phase power distributing network
Network；Micro-strip paster antenna includes two rectangular metal pasters and the excitation microband paste sky being printed on upper layer medium substrate upper surface
The T-shaped probe of line, described T-shaped probe is by being printed on the metal micro-strip on upper layer medium substrate surface and being connected on metal micro-strip center
Metal probe forms, and the through hole that the other end of metal probe is each passed through on reflection floor and layer dielectric substrate distributes with power
The two ends of microstrip line are connected.
Preferably, send microstrip bandstop filter to be made up of, even two sections of terminal open circuit microstrip lines and one section of connection microstrip line
Connecing microstrip line two ends and connect two terminal open circuit microstrip lines respectively, the length and width of terminal open circuit microstrip line and connection microstrip line makes
Obtaining frequency is fSend outTransmission signal can by and frequency is fReceiveReception signal can not pass through.
Preferably, receive microstrip bandstop filter to be made up of, even two sections of terminal open circuit microstrip lines and one section of connection microstrip line
Connecing microstrip line two ends and connect two terminal open circuit microstrip lines respectively, the length and width of terminal open circuit microstrip line and connection microstrip line makes
Obtaining frequency is fReceiveReception signal can by and frequency is fSend outTransmission signal can not pass through.
Further, send microstrip bandstop filter and receive working passband and the stop-band frequency of microstrip bandstop filter
On the contrary.
Preferably, the length and width sending impedance transformation microstrip line meets claimed below: ensure for frequency to be fReceive's
For receiving signal, it is when sending port and connecing matched load, and the impedance connecting end with power distribution microstrip line is close to open circuit.
Thus not affecting frequency is fReceiveReceive signal transmission on power distribution microstrip line.
Preferably, the length and width receiving impedance transformation microstrip line meets claimed below: ensure for frequency to be fSend out's
For sending signal, it is when receiving port connects matched load, and the impedance connecting end with power distribution microstrip line is close to open circuit.
Thus not affecting frequency is fSend outSend signal transmission on power distribution microstrip line.
Further, described transmission impedance transformation microstrip line and reception impedance transformation microstrip line are that two sections, left and right is operated in
A length of λ under different frequencyG receives/ 4 and λG sends outThe 50 Ω impedance transformation lines of/4.
The present invention compared with prior art, has the advantage that and beneficial effect:
1, the power distributing network of array antenna is combined by the present invention with duplex network design, has both devised one
There is duplex capability, there is again the duplexing power distributing network of power dividing function.Therefore the structure comparison of antenna is compact.Simultaneously
By arranging transmission microstrip bandstop filter at transmission port, reception microstrip bandstop filter is set at receiving port, it is achieved that
High-isolation between transmission and receiving port.Meanwhile, the present invention passes through designing antenna array, improves the gain of antenna.
2, the signal that the present invention launches with reception is all coupled with paster antenna by the micro-strip on T-shaped probe, its pole
Change direction identical with the direction of coupling microstrip, it is achieved that launch and receive same polarization.
3, the present invention send reception mutual interference little, by send microstrip bandstop filter and power distribution microstrip line between insert
Sending impedance transformation microstrip line, transmitting branch will not produce impact to the reception signal on power distribution microstrip line.By connecing
Receive to insert between microstrip bandstop filter and power distribution microstrip line and receive impedance transformation microstrip line, it is possible to make sending port
During (port 1) work, receiving branch will not produce impact to the transmission signal on power distribution microstrip line.Therefore, reception is sent
Between mutual interference less.
4, existing same polarization duplexed antenna, it is common that method for designing based on band filter is designed, and carry logical
Filter passband relatively pays close attention to the design in passband, and outside the band that distance passband is closer, the effect that suppression signal passes through is general
Not being fine, the frequency interval therefore sending reception is general farther out, to obtain preferable interport isolation.And the present invention uses band
The method design same polarization duplexed antenna of resistance wave filter, it is outside the band nearer apart from passband, and the effect that suppression signal passes through is relatively
Good, therefore can realize smaller transmission and receive frequency interval, and keep preferably launching receiving isolation characteristic.
Accompanying drawing explanation
Fig. 1 is total schematic diagram and the numbering mark of key component of the present embodiment；
Fig. 2 is total schematic diagram and the numbering mark of refinement of the present embodiment；
Fig. 3 is the front section view of the present embodiment antenna；
Fig. 4 is the top view of the present embodiment upper layer medium substrate；
Fig. 5 is the upward view of the present embodiment upper layer medium substrate；
Fig. 6 is the top view of the present embodiment layer dielectric substrate；
Fig. 7 is the upward view of the present embodiment layer dielectric substrate；
Fig. 8 is the size marking figure of the present embodiment upper layer medium substrate surface structure；
Fig. 9 is the size marking figure of the present embodiment upper layer medium substrate lower surface configuration；
Figure 10 is the size marking figure of the present embodiment layer dielectric upper surface of base plate structure；
Figure 11 is the emulation S parameter curve chart that the present embodiment sends band elimination filter example；
Figure 12 is the emulation S parameter curve chart that the present embodiment receives band elimination filter example；
Figure 13 is that the present embodiment sends conversion microstrip line connection transmission the emulation S parameter of microstrip bandstop filter, Yi Jifa
Sending end mouth (port 1) connects the impedance diagram after matched load；
Figure 14 is that the present embodiment receives conversion microstrip line connection reception the emulation S parameter of microstrip bandstop filter, Yi Jijie
Receiving end mouth (port 2) connects the impedance diagram after matched load；
Figure 15 is the test S parameter curve chart of the present embodiment antenna；
Figure 16 (a) is the E face measurement direction figure that the present embodiment antenna port 2 (2.2GHz) encourages；
Figure 16 (b) is the H face measurement direction figure that the present embodiment antenna port 2 (2.2GHz) encourages；
Figure 17 (a) is the E face measurement direction figure that the present embodiment antenna port 1 (2.4GHz) encourages；
Figure 17 (b) is the H face measurement direction figure that the present embodiment antenna port 1 (2.4GHz) encourages；
Figure 18 is that the test gain of the present embodiment antenna is with frequency variation curve.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
With reference to Fig. 1, Fig. 2 and Fig. 3, the present embodiment same polarization micro-strip duplexed antenna array, put including two identical symmetries
The micro-strip paster antenna 1 put and an anti-phase power distributing network 2 with duplex capability, described anti-phase power distributing network 2
Including power distribution microstrip line 3, send microstrip bandstop filter 4, transmission impedance transformation microstrip line 6, reception micro-strip bandreject filtering
Device 5 and reception impedance transformation microstrip line 7.
The one end sending microstrip bandstop filter 4 is connected with sending port (port 1), and the other end is by sending impedance transformation
Microstrip line 6 distributes microstrip line central point λ with power distribution microstrip line 3 at distance powerG sends outIt is connected at/4, λG sends outExist for sending signal
Wavelength on power distribution microstrip line 3.
The one end receiving microstrip bandstop filter 5 is connected with receiving port (port 2), and the other end is by receiving impedance transformation
Microstrip line 7 and power distribute the microstrip line 3 opposite side at power distribution microstrip line central point and distance center point λG receivesPhase at/4
Even, λG receivesFor receiving signal wavelength on power distribution microstrip line 3.
Send impedance transformation microstrip line 6 and reception impedance transformation microstrip line 7 is that two sections, left and right works at different frequencies
A length of λG receives/ 4 and λG sends outThe 50 Ω impedance transformation lines of/4.It is two sections of low impedance transmission line respectively after micro-strip impedance transformation line 6,7
21,22, two ports of radio system it are connected to subsequently by the transmission line 25,26 of two section of 50 Ω.Four sections of L-type terminals loaded
Open circuit minor matters line 19,20,23,24 is carried in the two ends of two sections of low-impedance lines 21,22 respectively, constitutes with two sections of low-impedance lines and sends out
Send two band elimination filters of receiving port.The working passband of two band elimination filters and stop-band frequency contrast.
Send microstrip bandstop filter 4 to be made up of microstrip line 19,23 and section connection microstrip line 21 of two sections of terminal open circuits,
Connect microstrip line 21 two ends and connect two open circuit microstrip lines 19,23 respectively.Terminal open circuit microstrip line 19,23 and connect microstrip line 21
Length and width makes in frequency to be f by rationally selectionSend outTransmission signal can by and frequency is fReceiveReception signal not
Can pass through.As an example, when requiring fSend out=2.4GHz, fReceiveDuring=2.2GHz, can to use relative dielectric constant be 2.55,
Thickness is that the dielectric-slab of h=0.8mm makees substrate, and the length of open circuit microstrip line 19 takes 25.7mm, width takes 0.5mm, micro-strip of opening a way
The length of line 23 takes 26.5mm, width takes 0.5mm, and the length connecting microstrip line 21 takes 25.7mm, width takes 7mm, and Figure 11 is this
The S parameter sending microstrip bandstop filter time individual, it can be seen that when frequency is 2.4GHz its S12 be-1.94dB, frequently
When rate is 2.2GHz, its S12 is-35.45dB, it is achieved that intercept the function receiving signal by sending signal.
Receive microstrip bandstop filter 5 to be made up of microstrip line 20,24 and section connection microstrip line 22 of two sections of terminal open circuits,
Connect microstrip line 22 two ends and connect two open circuit microstrip lines 20,24 respectively.Terminal open circuit microstrip line 20,24 and connect microstrip line 22
Length and width makes in frequency to be f by rationally selectionReceiveReception signal can by and frequency is fSend outTransmission signal not
Can pass through.As an example, when requiring fSend out=2.4GHz, fReceiveDuring=2.2GHz, can to use relative dielectric constant be 2.55,
Thickness is that the dielectric-slab of h=0.8mm makees substrate, and the length of open circuit microstrip line 20 takes 26.5mm, width takes 0.5mm, micro-strip of opening a way
The length of line 24 takes 25.9mm, width takes 0.5mm, and the length connecting microstrip line 22 takes 25.5mm, width takes 13mm, and Figure 12 is this
The S parameter receiving microstrip bandstop filter time individual, it can be seen that when frequency is 2.2GHz its S12 be-1.22dB, frequently
When rate is 2.4GHz, its S12 is-38.07dB, it is achieved that intercept the function sending signal by receiving signal.
Send impedance transformation microstrip line 6 by suitably choosing its length and width, it is ensured that be f for frequencyReceiveReception letter
For number, it is very in the impedance (when transmission port (port 1) connects matched load) connecting end with power distribution microstrip line 3
Greatly (close to open circuit), thus not affecting frequency is fReceiveReceive signal transmission on power distribution microstrip line 3.As a reality
Example, when requiring fSend out=2.4GHz, fReceiveDuring=2.2GHz, can to use relative dielectric constant be 2.55, thickness is h=0.8mm's
Dielectric-slab makees substrate, and the length sending impedance transformation microstrip line 6 takes 24mm, width takes 2.25mm, and transmission above-mentioned in connection is micro-
The impedance after matched load is connect as shown in figure 13 with the example of band elimination filter, its S parameter and transmission port (port 1).Can
To see, at fReceiveDuring=2.2GHz, impedance is more than 1000 ohm, and is f for frequencySend outThe transmission signal of=2.4GHz is then decayed
Seldom.
Receive impedance transformation microstrip line 7 by suitably choosing its length and width, it is ensured that be f for frequencySend outTransmission letter
For number, it is the biggest in the impedance (when receiving port (port 2) connects matched load) connecting end with power distribution microstrip line 3
(close to open circuit), thus not affecting frequency is fSend outSend signal transmission on power distribution microstrip line 3.As an example,
fSend out=2.4GHz, fReceiveThe dielectric-slab that during=2.2GHz, can to use relative dielectric constant be 2.55, thickness is h=0.8mm does base
Plate, the length receiving impedance transformation microstrip line 7 takes 20mm, width takes 2.25mm, reception micro-strip bandreject filtering above-mentioned in connection
The example of device, its S parameter and receiving port (port 2) connect the impedance after matched load as shown in figure 14.It will be seen that
fReceiveDuring=2.4GHz, impedance is more than 1000 ohm, and is f for frequencySend outThe reception signal of=2.2GHz is then decayed seldom.
Described same polarization micro-strip duplexed antenna array, also includes that two upper layer medium substrate being placed in parallel 8 and lower floor are situated between
Matter substrate 10, the upper surface of layer dielectric substrate 10 is coated with the reflection floor 9 of metal, and bottom surface arranges the anti-phase power of this antenna
Distribution network 2.
Described micro-strip paster antenna 1 includes two the rectangular metal pasters 11,12 being printed on upper layer medium substrate 8 upper surface
T-shaped probe with excitation micro-strip paster antenna.Described T-shaped probe is by the metal micro-strip being printed on upper layer medium substrate 8 lower surface
13,14 and be connected on metal micro-strip 13,14 center metal probe 15,16 composition, the other end of metal probe 15,16 is each passed through
Reflection floor 9 is connected with the two ends of the through hole 17,18 on layer dielectric substrate 10 with power distribution microstrip line 3.
When sending, send signal and send into from sending port (port 1), through sending microstrip bandstop filter 4 and sending
Power distribution microstrip line sent into by impedance transformation microstrip line 6.Through the signal of overpower distribution microstrip line by with identical amplitude, contrary
Phase place (phase 180 degree) be assigned at two T-shaped probes 13,14,15,16, and by the micro-strip on T-shaped probe
13,14 it is coupled to radiation patch 11,12.Owing to two pasters 11,12 are symmetrically placed and encourage, by micro-strip 13,14 coupling
Electromagnetic wave can produce the phase contrast of 180 degree at two pasters again so that the signal phase of two radiation patch radiation 11,12
Identical, it is possible in the positive Z-direction superposition in the same direction of antenna, to produce higher antenna gain.The polarization of ele direction of aerial radiation
Identical with the direction on the long limit of coupling microstrip 13,14.
When 330 receiving, receive signal and receive at two radiation patch antennas 11,12, and be coupled to T-shaped probe 13,14,
15、16.Receive polarization of electromagnetic wave direction identical with the direction on the long limit of coupling microstrip 13,14.Receive signal through T-shaped probe
13, the two ends of power distribution microstrip line 3 it are fed to after 14,15,16.Now, the signal at power distribution microstrip line 3 two ends is also
Amplitude is equal, phase 180 degree.The signal at power distribution microstrip line 3 two ends distributes micro-respectively through the power of 180 degree of phase place
Band wire arrives when receiving impedance transformation microstrip line 7 just with identical Phase Stacking, then passes through reception impedance transformation microstrip line 7
With reception microstrip bandstop filter 5, export from receiving port (port 2).
Fig. 4,5,6,7 are respectively the electrical structure diagram of two medium substrate upper and lower surfaces, and striped filling part is divided into conductive copper
The structure covered, remainder is medium substrate.
Fig. 8,9,10 are the size marking figure of each several part electrical structure.
In conjunction with Fig. 2, the size marking of Fig. 8, Fig. 9, Figure 10, in the present embodiment, the design parameter of antenna is as follows: two media
Plate is FR4 plate, and thickness c is 0.8mm, and width b is 130mm, and length a is 200mm.Height h between two dielectric-slabs is
6mm.Length of side 1a of rectangular patch, 1b are respectively 49mm, 50mm, and spacing 1c is 49.5mm.Two elongated micro-strip for coupling
Long 2a, wide 2b, spacing 2c is respectively 2mm, 6.5mm, 69.5mm.Power distributing network becomes symmetrical, its key dimension 3a,
4a, 5a, 6a, 3b are respectively 28.5mm, 21.78mm, 22.73mm, 27.3mm, 1.27mm.The impedance transformation line of two section of 50 Ω
It is 2.25mm that length 7a and 8a are respectively 24mm and 20mm, width 7b.The width 4b of the L-type minor matters line of four sections of terminal open circuits is
0.5mm, length 9a, 10a, 13a, 14a are respectively 25.7mm, 26.5mm, 26.5mm, 25.9mm.The length of two sections of low-impedance transmission
Degree 11a, 12a and width 5b, 6b are respectively 25.7mm, 25.5mm, 7mm, 13mm.It is connected to the length of two sections of transmission lines of port
28.83mm, 33.03mm, width is respectively 2.25mm.The port 1 of this antenna is operated in the frequency band of 2.4GHz, as transmitting terminal
Mouthful.Port 2 is operated in the frequency band of 2.2GHz, as receiving port.In two frequency bands, the isolation of two ports is all higher than
33dB, such as Figure 15.In the range of two working bands, the gain of antenna is substantially all more than 9.5dBi, and cross polarization is more than 20dB,
Such as emulation testing direction Figure 16 of antenna, shown in 17.When the port 2 of antenna works, antenna is in port 2 operating frequency 2.2GHz
The gain at place is 10dBi, and the gain at port 1 operating frequency 2.4GHz has then quickly fallen to below-25dBi, gain
Difference has reached more than 30dB, such as Figure 18.In like manner, when the port 1 of antenna works, antenna is at port 1 operating frequency 2.4GHz
Gain be 9.8dBi, and the gain at port 2 operating frequency 2.2GHz has also quickly fallen to below-25dBi, gain inequality
Reach more than 30dB, such as Figure 18.This side demonstrates has higher interport isolation between two ports of duplexed antenna.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (10)
1. same polarization micro-strip duplexed antenna array, it is characterised in that include two identical symmetrically placed micro-strip paster antennas
With an anti-phase power distributing network with duplex capability, described anti-phase power distributing network include power distribution microstrip line,
Send microstrip bandstop filter, send impedance transformation microstrip line, reception microstrip bandstop filter and receive impedance transformation microstrip line；
The one end sending microstrip bandstop filter is connected with sending port, and the other end distributes with power by sending impedance transformation microstrip line
Microstrip line is connected；The one end receiving microstrip bandstop filter is connected with receiving port, and the other end is by receiving impedance transformation micro-strip
Line is connected with power distribution microstrip line.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that described transmission micro-strip band resistance filter
Ripple device distributes microstrip line central point λ with power distribution microstrip line at distance power by sending impedance transformation microstrip lineG sends outPhase at/4
Even, λG sends outFor sending signal wavelength on power distribution microstrip line.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that described reception micro-strip band resistance filter
Ripple device by receive impedance transformation microstrip line and power distribution microstrip line at the opposite side of power distribution microstrip line central point and
Distance center point λG receivesIt is connected at/4, λG receivesFor receiving signal wavelength on power distribution microstrip line.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that described same polarization micro-strip duplex
Aerial array, also includes two upper layer medium substrate being placed in parallel and layer dielectric substrate, the upper surface of layer dielectric substrate
Being coated with the reflection floor of metal, bottom surface arranges anti-phase power distributing network；Micro-strip paster antenna includes being printed on top dielectric
Two rectangular metal pasters of upper surface of base plate and excitation micro-strip paster antenna T-shaped probe, described T-shaped probe by being printed on
The metal micro-strip on layer medium substrate surface and the metal probe composition being connected on metal micro-strip center, the other end of metal probe is respectively
Two ends through reflection floor with the through hole on layer dielectric substrate with power distribution microstrip line are connected.
5. according to the same polarization micro-strip duplexed antenna array described in claim 2 or 4, it is characterised in that send the resistance filter of micro-strip band
Ripple device is connected microstrip line by two sections of terminal open circuit microstrip lines and one section and forms, and connects microstrip line two ends and connects two terminal open circuits respectively
Microstrip line, the length and width of terminal open circuit microstrip line and connection microstrip line makes frequency be fSend outTransmission signal can pass through,
And frequency is fReceiveReception signal can not pass through.
6. according to the same polarization micro-strip duplexed antenna array described in claim 3 or 4, it is characterised in that receive the resistance filter of micro-strip band
Ripple device is connected microstrip line by two sections of terminal open circuit microstrip lines and one section and forms, and connects microstrip line two ends and connects two terminal open circuits respectively
Microstrip line, the length and width of terminal open circuit microstrip line and connection microstrip line makes frequency be fReceiveReception signal can pass through,
And frequency is fSend outTransmission signal can not pass through.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that send microstrip bandstop filter
Contrary with stop-band frequency with the working passband receiving microstrip bandstop filter.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that send impedance transformation microstrip line
Length and width meet claimed below: ensure to be f for frequencyReceiveReception signal for, sending port, to connect coupling negative for it
During load, the impedance connecting end with power distribution microstrip line is close to open circuit.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that receive impedance transformation microstrip line
Length and width meet claimed below: ensure to be f for frequencySend outTransmission signal for, it is negative that it connects coupling at receiving port
During load, the impedance connecting end with power distribution microstrip line is close to open circuit.
Same polarization micro-strip duplexed antenna array the most according to claim 1, it is characterised in that described transmission impedance transformation
Microstrip line and reception impedance transformation microstrip line are two sections, left and right work a length of λ at different frequenciesG receives/ 4 and λG sends out50 Ω of/4
Impedance transformation line.
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| CN201610861115.9A CN106252872B (en) | 2016-09-28 | 2016-09-28 | Co-polarized microstrip duplex antenna array |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107171078A (en) * | 2017-04-28 | 2017-09-15 | 华南理工大学 | Circularly polarization microstrip duplexed antenna |
| CN107302130A (en) * | 2017-05-11 | 2017-10-27 | 广东通宇通讯股份有限公司 | Aerial array, Anneta module and its microband antenna unit |
| CN107369899A (en) * | 2017-07-18 | 2017-11-21 | 华南理工大学 | Based on multimode resonator filter antenna array |
| CN108400449A (en) * | 2018-03-19 | 2018-08-14 | 重庆大学 | A kind of three array element Microstrip Planar Array Antennas row of high degree of isolation |
| CN108847865A (en) * | 2018-08-24 | 2018-11-20 | 南京濠暻通讯科技有限公司 | A kind of Anneta module for the 5th third-generation mobile communication mimo system |
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| CN116722360A (en) * | 2023-08-10 | 2023-09-08 | 广东工业大学 | Stacked high-isolation full-duplex antenna based on deep learning optimization and communication equipment |
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| CN107171078A (en) * | 2017-04-28 | 2017-09-15 | 华南理工大学 | Circularly polarization microstrip duplexed antenna |
| CN107171078B (en) * | 2017-04-28 | 2023-11-24 | 华南理工大学 | Circularly polarized microstrip duplex antenna |
| CN107302130A (en) * | 2017-05-11 | 2017-10-27 | 广东通宇通讯股份有限公司 | Aerial array, Anneta module and its microband antenna unit |
| CN107134645A (en) * | 2017-05-23 | 2017-09-05 | 华南理工大学 | FDD antennas based on dual-mode resonator |
| CN107134645B (en) * | 2017-05-23 | 2023-03-21 | 华南理工大学 | FDD antenna based on dual-mode resonator |
| CN107369899A (en) * | 2017-07-18 | 2017-11-21 | 华南理工大学 | Based on multimode resonator filter antenna array |
| CN107369899B (en) * | 2017-07-18 | 2023-03-21 | 华南理工大学 | Filtering antenna array based on multi-mode resonator |
| WO2019047091A1 (en) * | 2017-09-07 | 2019-03-14 | 广东通宇通讯股份有限公司 | Base station antenna and antenna array module thereof |
| US11205836B2 (en) | 2017-09-07 | 2021-12-21 | Tongyu Communication Inc. | Base station antenna and antenna array module thereof |
| CN108400449A (en) * | 2018-03-19 | 2018-08-14 | 重庆大学 | A kind of three array element Microstrip Planar Array Antennas row of high degree of isolation |
| CN108847865A (en) * | 2018-08-24 | 2018-11-20 | 南京濠暻通讯科技有限公司 | A kind of Anneta module for the 5th third-generation mobile communication mimo system |
| CN111883928A (en) * | 2019-05-02 | 2020-11-03 | 诺基亚通信公司 | Multiband antenna device |
| CN111883928B (en) * | 2019-05-02 | 2022-01-25 | 诺基亚通信公司 | Multiband antenna device |
| US11276923B2 (en) | 2019-05-02 | 2022-03-15 | Nokia Solutions And Networks Oy | Multi-band antenna arrangement |
| WO2021078090A1 (en) * | 2019-10-21 | 2021-04-29 | City University Of Hong Kong | Filter-antenna and method for making the same |
| US11509060B2 (en) | 2019-10-21 | 2022-11-22 | City University Of Hong Kong | Filter-antenna and method for making the same |
| CN116722360A (en) * | 2023-08-10 | 2023-09-08 | 广东工业大学 | Stacked high-isolation full-duplex antenna based on deep learning optimization and communication equipment |
| CN116722360B (en) * | 2023-08-10 | 2023-10-31 | 广东工业大学 | Stacked high-isolation full-duplex antenna based on deep learning optimization and communication equipment |
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