CN107809009A - A kind of filtering duplexed antenna based on open-loop resonator - Google Patents

A kind of filtering duplexed antenna based on open-loop resonator Download PDF

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Publication number
CN107809009A
CN107809009A CN201711051937.1A CN201711051937A CN107809009A CN 107809009 A CN107809009 A CN 107809009A CN 201711051937 A CN201711051937 A CN 201711051937A CN 107809009 A CN107809009 A CN 107809009A
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China
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open
loop resonator
receiving channel
rectangular patch
microstrip
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CN201711051937.1A
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CN107809009B (en
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李亮
谢泽明
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South China University of Technology SCUT
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South China University of Technology SCUT
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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
    • 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
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The invention discloses a kind of filtering duplexed antenna based on open-loop resonator, rectangular patch including loading short-circuit post among one, the parasitic rectangular patch of one stacking, transmission channel feed probes, receiving channel feed probes, reflect floor, emission port, receiving port, transmission channel feeding network and receiving channel feeding network, wherein, rectangular patch is printed on the upper surface of intermediate medium substrate, the parasitic rectangular patch of stacking is printed on the upper surface of upper layer medium substrate, reflection floor is printed on the upper surface of layer dielectric substrate, transmission channel feeding network and receiving channel feeding network are printed on the lower surface of layer dielectric substrate.The filtering duplexed antenna introduces open-loop resonator as feeding network, has filtering duplex capability, can realize transmitting and receive while carry out, and the electromagnetic wave that the transmitting of antenna uses with reception is linear polarised electromagnetic wave.

Description

A kind of filtering duplexed antenna based on open-loop resonator
Technical field
The present invention relates to wireless communication technology field, and in particular to a kind of filtering duplexed antenna based on open-loop resonator.
Background technology
Antenna is transmitting and the equipment for receiving electromagnetic wave, and antenna-feedback system is the front end of wireless communication system, is channel radio The indispensable critical component of letter system.Antenna-feedback system includes antenna, wave filter and duplexer, and conventional method is that three sets respectively Meter, then it is attached with radio-frequency cable so that whole system volume is big, weight weight, especially by feeder line and matching network band The loss come can greatly reduce the transmission efficiency of signal.
Modern times GSM in, in order to realize system it is compact-sized, in light weight, miniaturization, excellent performance, one The antenna-feedback system of body turns into development trend.Duplexed antenna, which combines the front-end devices such as antenna, wave filter, duplexer, to be set Meter, enables to the structure of radio-frequency front-end system compacter, reduces unnecessary loss and introduces so that communication system it is small-sized Change and be more prone to realize with integrated.The feeder line that the integrated design of radio-frequency front-end will be abandoned the matching network at both ends and be connected, This can significantly improve the transmission efficiency of signal, while cause wireless communication system minimize, be in light weight.
The interval that current same polarization duplexed antenna has transmitting-receiving frequency is bigger, and interport isolation is low, also needs electricity sometimes Pass enters transmission zero to improve transceiver insulation, causes more complicated circuit structure, and antenna gain it is not high the shortcomings of.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of filtering duplex day based on open-loop resonator Line, the antenna are same polarization alien frequencies duplexed antenna, without introducing extra circuit to realize that transmission zero improves isolation, are passed through Open-loop resonator feed allows for having high isolation between transmitting terminal and receiving terminal.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of filtering duplexed antenna based on open-loop resonator, the filtering duplexed antenna include three layers of Jie parallel to each other Matter substrate, respectively upper layer medium substrate, intermediate medium substrate and layer dielectric substrate, the upper layer medium substrate and middle Jie Matter substrate is spaced apart, and intermediate medium substrate and layer dielectric substrate are seamlessly connected, in addition to are printed on top dielectric base The parasitic rectangular patch of the stacking of plate upper surface, the rectangular patch of intermediate medium upper surface of base plate is printed on, is printed on lower floor Jie The reflection floor of matter upper surface of base plate, it is printed on transmission channel feeding network and the receiving channel feedback of layer dielectric base lower surface Electric network, it is carried on the rectangular patch length direction central axis and short at equal intervals through a row of intermediate medium substrate Lu Zhu, transmission channel feed probes, receiving channel feed probes, emission port and receiving port；The transmission channel feed is visited Pin and receiving channel feed probes one end are connected with rectangular patch, the other end be each passed through intermediate medium substrate, reflection floor, under Layer medium substrate is connected with transmission channel feeding network and receiving channel feeding network, meanwhile, the transmission channel feeding network It is connected respectively with emission port and receiving port with the other end of receiving channel feeding network.
Further, the transmission channel feeding network includes the first microstrip feed line, the first microstrip coupled line, transmission channel First open-loop resonator, the open-loop resonator of transmission channel second, the second microstrip coupled line and the second microstrip feed line；Described receive is led to Road feeding network includes the 3rd microstrip feed line, the 3rd microstrip coupled line, the open-loop resonator of receiving channel the 3rd, receiving channel the 4th Open-loop resonator, the 4th microstrip coupled line and the 4th microstrip feed line.
Further, one end of the transmission channel feeding network is connected by the first microstrip feed line with emission port, separately One end is connected by the second microstrip feed line with the transmission channel feed probes；One end of the receiving channel feeding network passes through 3rd microstrip feed line is connected with receiving port, and the other end is connected by the 4th microstrip feed line with the receiving channel feed probes.
Further, the upper end of the short-circuit post is connected to rectangular patch, and lower end is connected to reflection floor, and along rectangle The length direction central axis of paster equidistantly arranges, and the geometric center on rectangular patch is symmetrical.
Further, the geometric center of the transmission channel feed probes and receiving channel feed probes on rectangular patch Symmetrically, and all on the width central axis of the rectangular patch.
Further, exist between the described first microstrip coupled open-loop resonator of line and transmission channel first coupling gap, Coupling gap between the open-loop resonator of transmission channel first and transmission channel second open-loop resonator be present, the transmitting is led to Coupling gap between the open-loop resonator of road second and the second microstrip coupled line be present, and all coupling gaps are adjustable.
Further, exist between the 3rd microstrip coupled line and the open-loop resonator of receiving channel the 3rd coupling gap, Coupling gap between the open-loop resonator of receiving channel the 3rd and receiving channel pendant collet resonator be present, described receive is led to Coupling gap between road pendant collet resonator and the 4th microstrip coupled line be present, and all coupling gaps are adjustable.
Further, it is printed on the rectangular patch of intermediate medium upper surface of base plate and is carried in the rectangular patch length side Short-circuit post can produce one and have two resonant modes at equal intervals on to central axis and through a row of intermediate medium substrate The single polarization paster antenna of formula；The open-loop resonator of transmission channel first, the open-loop resonator of transmission channel second and with two it is humorous The low frequency resonant modes of the single polarization paster antenna for pattern of shaking be coupled caused by transmitting antenna make it that frequency is fHairTransmission letter Number can be by, and frequency is fReceiveReception signal can not pass through；The open-loop resonator of receiving channel the 3rd, receiving channel the 4th are opened The high-frequency resonant mode of ring resonator and single polarization paster antenna with two modes of resonance is coupled caused reception antenna So that frequency is fReceiveReception signal can be by, and frequency is fHairTransmission signal can not pass through.
The present invention compared with prior art, has the following advantages that and beneficial effect：
1st, the present invention is passed through by will load the rectangular patch of the short-circuit post equidistantly arranged and the parasitic rectangular patch of stacking Transmission channel feed probes or receiving channel feed probes feed design one has the single polarization of two modes of resonance Paster antenna, and the frequency interval of two modes of resonance is near, is easy to implement the near FDD antenna in transmitting receives frequency interval.
2nd, the filtering duplexed antenna circuit structure based on open-loop resonator of the invention is simple, without introduce extra circuit with Realize that transmission zero improves isolation, may be such that there is high isolation between transmitting terminal and receiving terminal by open-loop resonator feed Degree.
3rd, transmission channel of the invention and receiving channel can be by adjusting corresponding microstrip coupled line and corresponding open loop resonance The coupling gap between coupling gap, open-loop resonator and open-loop resonator between device so that the hair of the filtering duplexed antenna Penetrate passage and receiving channel cooperation is unaffected, realize transmission channel and the small mutual interference of receiving channel.
Brief description of the drawings
Fig. 1 is the general construction schematic diagram that the embodiment of the present invention filters duplexed antenna.
Fig. 2 is that the embodiment of the present invention filters the general construction schematic diagram of duplexed antenna and the size numbers mark of section components.
Fig. 3 is that the embodiment of the present invention filters the duplexed antenna front section view that central axis upright is splitted along its length.
Fig. 4 is the size numbers mark figure of upper layer medium substrate surface structure of the embodiment of the present invention.
Fig. 5 is the size numbers mark figure of intermediate medium upper surface of base plate structure of the embodiment of the present invention.
Fig. 6 is the size numbers mark figure of layer dielectric base lower surface structure of the embodiment of the present invention.
Fig. 7 is the emulation S parameter curve map that the embodiment of the present invention filters duplexed antenna.
Fig. 8 is that the embodiment of the present invention filters the simulated gain of duplexed antenna with frequency variation curve figure.
Fig. 9 (a) is that xoz face of the emission port of the embodiment of the present invention under 2.35GHz excitations emulates directional diagram；Fig. 9 (b) is Yoz face of the emission port of the embodiment of the present invention under 2.35GHz excitations emulates directional diagram.
Figure 10 (a) is that xoz face of the receiving port of the embodiment of the present invention under 2.7GHz excitations emulates directional diagram；Figure 10 (b) Directional diagram is emulated for yoz face of the receiving port of the embodiment of the present invention under 2.7GHz excitations.
Wherein, the parasitic rectangular patch that 1- is stacked, 2- rectangular patches, 3- short circuit posts, 4- transmission channel feed probes, 5- connect Receive passage feed probes, the microstrip feed lines of 6- first, the first microstrip coupled lines of 7-, the open-loop resonator of 8- transmission channels first, 9- hairs Penetrate the open-loop resonator of passage second, the second microstrip coupled lines of 10-, the microstrip feed lines of 11- second, the microstrip feed lines of 12- the 3rd, 13- Three microstrip coupled lines, the open-loop resonator of 14- receiving channels the 3rd, 15- receiving channel pendant collet resonators, the micro-strips of 16- the 4th Coupling line, the microstrip feed lines of 17- the 4th, 18- emission ports, 19- receiving ports, 20- upper layer medium substrates, 21- intermediate medium bases Plate, 22- layer dielectric substrates, 23- reflections floor.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited In this.
Embodiment：
As shown in Figure 1, Figure 2 and Figure 3, a kind of filtering duplexed antenna based on open-loop resonator, institute are present embodiments provided Stating filtering duplexed antenna includes three layers of medium substrate parallel to each other, respectively upper layer medium substrate (20), intermediate medium substrate (21) and layer dielectric substrate (22), the upper layer medium substrate (20) and intermediate medium substrate (21) are spaced apart, in Between medium substrate (21) and layer dielectric substrate (22) be seamlessly connected, in addition to be printed on upper layer medium substrate (20) upper surface The parasitic rectangular patch (1) of stacking, the rectangular patch (2) of intermediate medium substrate (21) upper surface is printed on, is printed on lower floor Jie The reflection floor (23) of matter substrate (22) upper surface, it is printed on the transmission channel feeding network of layer dielectric substrate (22) lower surface With receiving channel feeding network, it is carried on the rectangular patch (2) length direction central axis and runs through intermediate medium substrate (21) a row short-circuit post (3) at equal intervals, transmission channel feed probes (4), receiving channel feed probes (5), emission port And receiving port (19) (18)；The transmission channel feed probes (4) and receiving channel feed probes (5) one end and rectangular patch (2) it is connected, it is logical that the other end is each passed through intermediate medium substrate (21), reflection floor (23), layer dielectric substrate (22) and transmitting Road feeding network is connected with receiving channel feeding network, meanwhile, the transmission channel feeding network and receiving channel feeding network The other end be connected respectively with emission port (18) and receiving port (19).
Wherein, the transmission channel feeding network includes the first microstrip feed line (6), the first microstrip coupled line (7), launches and lead to The open-loop resonator of road first (8), the open-loop resonator of transmission channel second (9), the second microstrip coupled line (10) and the feedback of the second micro-strip Line (11), one end of first microstrip feed line (6) are connected with emission port (18), the other end and the first microstrip coupled line (7) It is connected, is coupled between the first microstrip coupled line (7) and the open-loop resonator of transmission channel first (8), the open loop of transmission channel first is humorous Shake and coupled between device (8) and the open-loop resonator of transmission channel second (9), the open-loop resonator of transmission channel second (9) and Coupled between two microstrip coupled lines (10), the second microstrip coupled line (10) is connected with the second microstrip feed line (11), and described second is micro- Ribbon feeder (11) is connected to transmission channel feed probes (4), and transmission channel feed probes (4) are to the rectangular patch for loading short-circuit post (2) feed, the rectangular patch (2) for loading short-circuit post passes through parasitic rectangular patch (1) of the couple feed to stacking.Load short-circuit post Rectangular patch (2), equidistantly arranged on the horizontal center line of rectangular patch (2) 15 short-circuit posts (3), stack parasitism The position of air layer height and transmission channel feed probes (4) between rectangular patch (1), the length for reflecting floor (23), medium substrate Two modes of resonance and single polarization mode can be had by reasonable selection paster antenna by putting.As an example, When requiring fHair=2.35GHz, fReceiveDuring=2.7GHz, Jie that relative dielectric constant is h=0.8mm for 2.55, thickness can be used Scutum makees substrate, and the length for loading the rectangular patch (2) of short-circuit post takes 46mm, the equidistant arrangement in rectangular patch (2) Short-circuit post (3) spacing takes 2.875mm, and short-circuit post (3) diameter takes 1mm, and the length of the parasitic rectangular patch (1) of stacking takes 74mm, the length of reflection floor (23) take 92mm, and air layer height takes 6mm between medium substrate, transmission channel feed probes (4) Position takes the edge 29.2mm of distance reflection floor (23).First microstrip feed line (6), the first microstrip coupled line (7), transmission channel First open-loop resonator (8), the open-loop resonator of transmission channel second (9), the second microstrip coupled line (10) and the second microstrip feed line (11) length and width and the coupling spacing of slot-coupled port is f in frequency by reasonable selectionHairReception letter Number can by, and frequency be fConnectTransmission signal can not pass through.As an example, when requiring fHair=2.35GHz, fReceive= During 2.7GHz, the dielectric-slab that relative dielectric constant can be used to be h=0.8mm for 2.55, thickness does substrate, the first microstrip feed line (6) length takes 16.2mm, width to take 2.2mm, and the length of the first microstrip coupled line (7) takes 14mm, width to take 0.4mm, transmitting The open-loop resonator of passage first (8) is each about tranmitting frequency corresponding two with the length of the open-loop resonator of transmission channel second (9) / mono- resonance wavelength 49.2mm, width take 1.4mm, the length of the second microstrip coupled line (10) take 14mm, width take 0.4mm, The length of second microstrip feed line (11) takes 4.6mm, width to take 2.2mm to form, and the first microstrip coupled line (7) and described transmitting are led to Coupling gap between the open-loop resonator of road first (8) takes 0.2mm, the described open-loop resonator of transmission channel first (8) and institute Coupling gap between the open-loop resonator of transmission channel second (9) stated takes 1.2mm, described transmission channel the second open loop resonance Coupling gap between device (9) and the second microstrip coupled line (10) takes 0.5mm.It is micro- that the receiving channel feeding network includes the 3rd Ribbon feeder (12), the 3rd microstrip coupled line (13), the open-loop resonator (14) of receiving channel the 3rd, receiving channel pendant collet resonance Device (15), the 4th microstrip coupled line (16) and the 4th microstrip feed line (17).One end of the transmission channel feeding network passes through One microstrip feed line (6) is connected with emission port (18), and the other end is fed by the second microstrip feed line (11) and the transmission channel Probe (4) is connected；One end of the receiving channel feeding network is connected by the 3rd microstrip feed line (12) with receiving port (19), The other end is connected by the 4th microstrip feed line (17) with the receiving channel feed probes (5).The length of 3rd microstrip feed line (12) Degree takes 20mm, width to take 2.2mm, and the length of the 3rd microstrip coupled line (13) takes 14mm, width to take 0.6mm, receiving channel the 3rd Open-loop resonator (14) and the length of receiving channel pendant collet resonator (15) are each about the corresponding half of receives frequency Resonance wavelength 43.4mm, width take 1mm, and the length of the 4th microstrip coupled line (16) takes 14mm, width to take 0.6mm, the 4th micro-strip The length of feeder line (17) takes 4.4mm, width to take 2.2mm, the 3rd microstrip coupled line (13) and the described open loop of receiving channel the 3rd Coupling gap between resonator (14) takes 0.3mm, the described open-loop resonator (14) of receiving channel the 3rd and described reception Coupling gap between passage pendant collet resonator (15) takes 1.5mm, described receiving channel pendant collet resonator (15) And the 4th coupling gap between microstrip coupled line (16) takes 0.9mm.
In addition, the upper end of the short-circuit post (3) is connected to rectangular patch (2), lower end is connected to reflection floor (23), and edge The length direction central axis for rectangular patch (2) equidistantly arranges, and the geometric center on rectangular patch (2) is symmetrical.It is described Transmission channel feed probes (4) and receiving channel feed probes (5) are symmetrical on the geometric center of rectangular patch (2), and all exist On the width central axis of the rectangular patch (2).
Coupling gap, described between the first microstrip coupled line (7) and the open-loop resonator of transmission channel first (8) be present Coupling gap, the transmitting between the open-loop resonator of transmission channel first (8) and the open-loop resonator of transmission channel second (9) be present Coupling gap be present between the open-loop resonator of passage second (9) and the second microstrip coupled line (10), and all coupling gaps are adjustable. Coupling gap between the 3rd microstrip coupled line (13) and the open-loop resonator (14) of receiving channel the 3rd be present, described receive is led to Coupling gap, the receiving channel be present between the open-loop resonator (14) of road the 3rd and receiving channel pendant collet resonator (15) Coupling gap between pendant collet resonator (15) and the 4th microstrip coupled line (16) be present, and all coupling gaps are adjustable.
It is printed on the rectangular patch (2) of intermediate medium substrate (21) upper surface and is carried in the rectangular patch (2) length On the central axis of direction and through intermediate medium substrate (21) a row at equal intervals short-circuit post (3) can produce one have two The single polarization paster antenna of individual mode of resonance；The open-loop resonator of transmission channel first (8), the open-loop resonator of transmission channel second (9) and the single polarization paster antenna with two modes of resonance low frequency resonant modes be coupled caused by transmitting antenna cause frequency Rate is fHairTransmission signal can be by, and frequency is fReceiveReception signal can not pass through；The open-loop resonator of receiving channel the 3rd (14), the high-frequency resonant mould of receiving channel pendant collet resonator (15) and the single polarization paster antenna with two modes of resonance Formula be coupled caused by reception antenna make it that frequency is fReceiveReception signal can be by, and frequency is fHairTransmission signal can not Pass through.
When sending, send signal to be sent into from emission port (18), via the first microstrip feed line (6), first is microstrip coupled Line (7), the open-loop resonator of transmission channel first (8), the open-loop resonator of transmission channel second (9), the second microstrip coupled line (10), Signal is passed to transmission channel feed probes (4) by the transmission channel feeding network of the second microstrip feed line (11) composition, and transmitting is logical Road feed probes (4) again pass to signal the rectangular patch (2) for loading short-circuit post, and finally by rectangular patch, (22 couplings are believed Number to stack parasitic rectangular patch (1) radiate.
When 330 receiving, reception signal receives from the parasitic rectangular patch (1) of stacking, the parasitic rectangular patch (1) of stacking The signal received is coupled to the rectangular patch (2) for loading short-circuit post, signal is passed to receiving channel by rectangular patch (2) again Feed probes (5), receiving channel feed probes (5) again pass to signal by the 3rd microstrip feed line (12), and the 3rd is microstrip coupled Line (13), the open-loop resonator (14) of receiving channel the 3rd, receiving channel pendant collet resonator (15), the 4th microstrip coupled line (16), the receiving channel feeding network of the 4th microstrip feed line (17) composition, is exported from receiving port (19).
The design parameter for the filtering duplexed antenna based on open-loop resonator that the present embodiment provides is as follows：Three medium substrates Material it is identical with size, as shown in Fig. 2 thickness c is 0.8mm, width b is 92mm, and length a is 72.6mm.Three medium bases Height h between plate is 6mm.As shown in figure 4, long 1a, the wide 1b of the parasitic rectangular patch (1) stacked are respectively 74mm, 46mm. As shown in figure 5, the long 2a, the wide 2b that load the rectangular patch (2) of short-circuit post are respectively 46mm, 35.4mm, rectangular patch (2) edge It is respectively 17.7mm, 19.5mm from intermediate medium substrate edges spacing 2c, 2d.Diameter between equidistant 15 short-circuit posts (3) 3a and spacing 3b is respectively 1mm, 2.875mm.Transmission channel feed probes (4) diameter 4a, transmission channel feed probes (4) center of circle It is respectively 1mm, 10.6mm from rectangular patch (2) edge spacing 4b.Receiving channel feed probes (5) diameter 5a, receiving channel feedback Electric probe (5) center of circle is respectively 1mm, 9.3mm from rectangular patch (2) edge spacing 5b.As shown in fig. 6, transmission channel transmission network Key dimension 6a, 6b of network is respectively 16.2mm, 2.2mm, 7a=10a=11.8mm, 7b=10b=0.4mm, 8a=9a= 9.4mm, 8b=9b=3.5mm, 8c=9c=2.4mm, 8d=9d=1.4mm, 8e, 9e, 10c be respectively 0.2mm, 1.2mm, 0.5mm, 11a, 11b are respectively 4.6mm, 2.2mm.Key dimension 12a, 12b of receiving channel feeding network be respectively 20mm, 2.2mm, 13a=16a=11.8mm, 13b=16b=0.6mm, 14a=15a=7.4mm, 14b=15b=2mm, 14c=15c =3.4mm, 14d=15d=1mm, 14e, 15e, 16c are respectively 0.3mm, 1.5mm, 0.9mm, 17a, 17b be respectively 4.4mm, 2.2mm.The emission port (18) of the antenna is operated in 2.35GHz frequency band, and receiving port (19) is operated in 2.7GHz frequency band. In two frequency bands, the isolation of two ports is all higher than 36dB, as shown in Figure 7.In emission port (18) work of antenna, Gain of the antenna at emission port (18) working frequency 2.35GHz is 4.6dBi, and 36dB is suppressed over to frequency acceptance band, During receiving port (19) work of antenna, gain of the antenna at receiving port (19) working frequency 2.7GHz is 6dBi, to hair Radio frequency band is suppressed over 38dB, as shown in Figure 8.In the range of two working bands, the gain of antenna is substantially all more than 4dBi, Cross polarization is more than 30dB, and is all the line polarization wave on x directions, as the emulation testing directional diagram 9 (a) of antenna, Fig. 9 (b), Shown in Figure 10 (a), Figure 10 (b).
It is described above, patent preferred embodiment only of the present invention, but the protection domain of patent of the present invention is not limited to This, any one skilled in the art is in the scope disclosed in patent of the present invention, according to the skill of patent of the present invention Art scheme and its patent of invention design are subject to equivalent substitution or change, belong to the protection domain of patent of the present invention.

Claims (8)

  1. A kind of 1. filtering duplexed antenna based on open-loop resonator, it is characterised in that：The filtering duplexed antenna includes three layers mutually Parallel medium substrate, respectively upper layer medium substrate, intermediate medium substrate and layer dielectric substrate, the top dielectric base Plate and intermediate medium substrate are spaced apart, and intermediate medium substrate and layer dielectric substrate are seamlessly connected, in addition to are printed on The parasitic rectangular patch of the stacking of upper layer medium substrate upper surface, the rectangular patch of intermediate medium upper surface of base plate is printed on, printed Brush on the reflection floor of layer dielectric upper surface of base plate, be printed on layer dielectric base lower surface transmission channel feeding network and Receiving channel feeding network, it is carried on the rectangular patch length direction central axis and through a row of intermediate medium substrate Equidistant short-circuit post, transmission channel feed probes, receiving channel feed probes, emission port and receiving port；The transmitting Passage feed probes and receiving channel feed probes one end are connected with rectangular patch, the other end be each passed through intermediate medium substrate, Reflection floor, layer dielectric substrate are connected with transmission channel feeding network and receiving channel feeding network, meanwhile, the transmitting is logical The other end of road feeding network and receiving channel feeding network is connected with emission port and receiving port respectively.
  2. A kind of 2. filtering duplexed antenna based on open-loop resonator according to claim 1, it is characterised in that：The transmitting Passage feeding network includes the first microstrip feed line, the first microstrip coupled line, the open-loop resonator of transmission channel first, transmission channel the Two open-loop resonators, the second microstrip coupled line and the second microstrip feed line；The receiving channel feeding network is presented including the 3rd micro-strip It is line, the 3rd microstrip coupled line, the open-loop resonator of receiving channel the 3rd, receiving channel pendant collet resonator, the 4th microstrip coupled Line and the 4th microstrip feed line.
  3. A kind of 3. filtering duplexed antenna based on open-loop resonator according to claim 2, it is characterised in that：The transmitting One end of passage feeding network is connected by the first microstrip feed line with emission port, the other end by the second microstrip feed line with it is described Transmission channel feed probes are connected；One end of the receiving channel feeding network passes through the 3rd microstrip feed line and receiving port phase Even, the other end is connected by the 4th microstrip feed line with the receiving channel feed probes.
  4. A kind of 4. filtering duplexed antenna based on open-loop resonator according to claim 1, it is characterised in that：The short circuit The upper end of post is connected to rectangular patch, and lower end is connected to reflection floor, and length direction central axis along rectangular patch etc. Spacing arranges, and the geometric center on rectangular patch is symmetrical.
  5. A kind of 5. filtering duplexed antenna based on open-loop resonator according to claim 1, it is characterised in that：The transmitting Passage feed probes and receiving channel feed probes are symmetrical on the geometric center of rectangular patch, and all in the rectangular patch On width central axis.
  6. A kind of 6. filtering duplexed antenna based on open-loop resonator according to Claims 2 or 3, it is characterised in that：It is described It is humorous to there is coupling gap, the open loop of the transmission channel first between the first microstrip coupled open-loop resonator of line and transmission channel first Shake and coupling gap, the open-loop resonator of the transmission channel second and second between device and the open-loop resonator of transmission channel second be present Coupling gap between microstrip coupled line be present, and all coupling gaps are adjustable.
  7. A kind of 7. filtering duplexed antenna based on open-loop resonator according to Claims 2 or 3, it is characterised in that：It is described It is humorous to there is coupling gap, the open loop of the receiving channel the 3rd between 3rd microstrip coupled line and the open-loop resonator of receiving channel the 3rd Shake and coupling gap, the receiving channel pendant collet resonator and the 4th between device and receiving channel pendant collet resonator be present Coupling gap between microstrip coupled line be present, and all coupling gaps are adjustable.
  8. A kind of 8. filtering duplexed antenna based on open-loop resonator according to Claims 2 or 3, it is characterised in that：Printing Intermediate medium upper surface of base plate rectangular patch and be carried on the rectangular patch length direction central axis and run through Between a row of medium substrate short-circuit post can produce a single polarization paster antenna with two modes of resonance at equal intervals；Hair Penetrate the open-loop resonator of passage first, the open-loop resonator of transmission channel second and the single polarization paster antenna with two modes of resonance Low frequency resonant modes be coupled caused by transmitting antenna make it that frequency is fHairTransmission signal can be by, and frequency is fReceive's Reception signal can not pass through；The open-loop resonator of receiving channel the 3rd, receiving channel pendant collet resonator and there are two resonance The high-frequency resonant mode of the single polarization paster antenna of pattern be coupled caused by reception antenna make it that frequency is fReceiveReception signal Can be by, and frequency is fHairTransmission signal can not pass through.
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CN109638432A (en) * 2018-10-18 2019-04-16 东莞理工学院 It is a kind of based on novel mixing ring feeding network with interior full-duplex antenna and application method
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CN112585869A (en) * 2018-08-27 2021-03-30 瑞典爱立信有限公司 Radio unit for non-synchronized TDD multi-band operation
CN112585869B (en) * 2018-08-27 2023-06-30 瑞典爱立信有限公司 Radio unit for asynchronous TDD multiband operation
CN109193136A (en) * 2018-09-28 2019-01-11 深圳大学 A kind of high-gain paster antenna with broadband and filter characteristic
CN109638432A (en) * 2018-10-18 2019-04-16 东莞理工学院 It is a kind of based on novel mixing ring feeding network with interior full-duplex antenna and application method
CN110137674A (en) * 2019-05-20 2019-08-16 江麓机电集团有限公司 A kind of radio frequency identification and mobile communication duplex antenna
CN110474156A (en) * 2019-08-23 2019-11-19 华南理工大学 A kind of filtering paster antenna with CQ coupled structure
CN110474156B (en) * 2019-08-23 2024-03-26 华南理工大学 Filtering patch antenna with CQ coupling structure
CN114730992A (en) * 2019-11-13 2022-07-08 国立大学法人埼玉大学 Antenna module and communication device equipped with same
CN114730992B (en) * 2019-11-13 2024-06-11 国立大学法人埼玉大学 Antenna module and communication device equipped with the same
CN112186357A (en) * 2020-09-17 2021-01-05 华南理工大学 Dual-polarized filtering patch antenna based on resonator type probe feed

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