CN207967321U - The interior full-duplex antenna of band of ring is mixed based on 180 degree - Google Patents
The interior full-duplex antenna of band of ring is mixed based on 180 degree Download PDFInfo
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- CN207967321U CN207967321U CN201721584060.8U CN201721584060U CN207967321U CN 207967321 U CN207967321 U CN 207967321U CN 201721584060 U CN201721584060 U CN 201721584060U CN 207967321 U CN207967321 U CN 207967321U
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Abstract
The utility model discloses a kind of interior full-duplex antenna of band mixing ring based on 180 degree, which includes a square micro-strip radiation patch, and two mix ring feeding network for the T-type probe of couple feed and a 180 degree.The utility model devises one, and there is the antenna with interior full duplex function, transmitting and the receive process of antenna to be carried out at the same time and occupy same working frequency range.Using two isolated ports of 180 degree mixing ring as the transmitting terminal of antenna and receiving terminal, other two port is drawn by two 50 Ω microstrip lines, carries out couple feed to radiation side's patch through two T-type probes respectively.The transmitting of antenna uses orthogonal linear polarised electromagnetic wave with reception, provides polarization isolation, while the high-isolation between sending and receiving port is furthermore achieved in the isolation of the intrinsic two-port of 180 degree mixing ring offer.
Description
Technical field
The utility model is related to wireless communication technology fields, and in particular to a kind of band mixing ring based on 180 degree is interior complete double
Work antenna.
Background technology
Antenna is a kind of switching device of radiation and reception electromagnetic wave, can both be used as transmitting equipment by high frequency current transitions
It goes out for the radio wave transmission of same frequency, can also be used as receiving device by radio wave reception and is converted to the height of same frequency
Frequency electric current is widely used in mobile communication, broadcast, radio, remote sensing etc..For mobile communication system, antenna is even more
The converter of circuitry signal and electromagnetic wave signal, is the entrance of information, and performance influences the performance of entire mobile network.
With the development of wireless communication, people are also higher and higher for the rate requirement of wireless communication, the appearance of wireless communication
Amount demand is also increasing.Single antenna can realize transmitting and receive work be carried out at the same time and occupy same working frequency range can be effective
The quantity and occupied space of antenna are reduced, there is very wide application space and practical value.
Realize that the principal mode with interior duplex is to use dual polarized antenna.Dual polarized antenna is sent out respectively due to two port
The electromagnetic wave for penetrating or receiving two orthogonal polarization directions, is independent of each other each other, therefore can be carried by space diversity
The signal-to-noise ratio of high wireless communication receiver signal, to improve the capacity of wireless communication.Due to two port energy of dual polarized antenna
It is enough operated in identical working frequency, and two orthogonal electromagnetic waves of polarization direction, dual polarized antenna conduct can be distinguished
Full-duplex antenna can use the same working frequency, therefore energy relative to traditional frequency division duplex antenna, transmitting with reception
Enough message capacities for exponentially increasing communication system.
It was fed respectively using probe with interior duplexed antenna two-port in the past and generates orthogonal line polarization wave structure type presence
The disadvantage that interport isolation is not high, cross polarization is poor, the gain of antenna is not high.
Utility model content
Purpose of the utility model is to solve drawbacks described above in the prior art, provide a kind of based on 180 degree mixing
The interior full-duplex antenna of band of ring.
The purpose of this utility model can be reached by adopting the following technical scheme that：
A kind of interior full-duplex antenna of band mixing ring based on 180 degree, the interior full-duplex antenna of the band includes top dielectric
Substrate, layer dielectric substrate and two are used for the T-type probe of couple feed, and two of which T-type probe is respectively by first level arm 2
It is constituted with the first upright arm 4 and the second horizontal arm 3 and 5 vertical connection of the second upright arm,
The upper surface of the upper layer medium substrate is printed with rectangular micro-strip radiation patch 1, the layer dielectric base
The lower surface of plate is printed with the first level arm 2 and second horizontal arm 3,
The upper surface of the layer dielectric substrate is printed with reflection floor 11, the lower surface of the layer dielectric substrate
It is printed with 180 degree mixing ring feeding network, it includes three sections quarter-wave first that the 180 degree, which mixes ring feeding network,
4th microstrip line 17 of microstrip line 14, the second microstrip line 15 and third microstrip line 16 and one section of 3/4ths wavelength, it is described
It includes four ports that 180 degree, which mixes ring feeding network, wherein two ports are as isolated port by the first impedance of different impedances
Transformation line 8 and the second impedance transformation line 9 and the 5th microstrip line 10 are drawn, and transmitting terminal and receiving terminal are used separately as；Another two end
Mouth is then drawn through the 6th microstrip line 6 and the 7th microstrip line 7 respectively, the first upright arm 4 and the second upright arm with two T-type probes
5 are connected.
Further, the 6th microstrip line 6 and the 7th microstrip line 7 respectively with across reflection floor 11 and under
The first upright arm 4 and the second upright arm 5 of two T-type probes of first through hole 18 and the second through-hole 19 on layer medium substrate 13
It is connected.
Further, the first level arm 2 and second horizontal arm 3 are rectangular microstrips, and along rectangular
The diagonal positions of the micro-strip radiation patch are symmetrically placed, are mutually orthogonal to one another.
Further, first upright arm 4 and second upright arm 5 are metal probes, and positioned at rectangular
The both sides symmetric position of the geometric center of micro-strip radiation patch, at the same one end of two metal probes respectively with the 6th microstrip line and
7th microstrip line is connected, and the other end is then each passed through the two of reflection floor and through-hole and two T-type probes on layer dielectric substrate
Horizontal arm is connected.
Further, the port at the emitted end of signal arrives separately at two T-type probes, reaches the signal of two T-type probes
Amplitude is equal and phase differs 180 degree, passes through the first level arm 2 and second of two horizontal directions of two T-type probes later
Horizontal arm 3 is coupled to rectangular micro-strip radiation patch and radiate, and the line polarization wave in the directions y is generated at Antenna Far Field.
Further, the port at the received end of signal arrives separately at two T-type probes, reaches the signal of two T-type probes
Amplitude and phase are equal, and pass through the first level arm 2 and the second horizontal arm 3 of two horizontal directions of two T-type probes later
It is coupled to rectangular micro-strip radiation patch to radiate, the line polarization wave in the directions x is generated at Antenna Far Field.
Further, the port of transmitting terminal, antenna is encouraged to generate the line polarization wave in the directions y, signal will not be from receiving terminal
It flows out port.
Further, the port of receiving terminal, antenna is encouraged to generate the line polarization wave in the directions x, signal will not be from transmitting terminal
It flows out port.
Further, two isolated ports that ring feeding network is mixed using 180 degree are used separately as the transmitting of antenna and connect
Receiving end, while the transmitter and receiver of active antenna can generate orthogonal line polarization wave, this structure type makes antenna transmitting connect
Knock off and be carried out at the same time, and the isolation of transmitting terminal and receiving terminal greatly improves.
The utility model has the following advantages compared with the existing technology and effect：
1,180 degree is mixed ring as the feeding network of antenna by the utility model, and two isolation of ring are mixed using 180 degree
Transmitting and receiving terminal of the port respectively as antenna so that antenna transmitting, which receives, to be carried out at the same time without interruption.
2, the another two port that 180 degree is mixed ring by the utility model is visited as the feed end of antenna using two feeds
Horizontal arm of the needle through two T-type probes, which is coupled to square patch, goes out signal radiation, in Antenna Far Field when wherein transmitting terminal encourages
Place generates the line polarization wave in the directions y, and then generates the line polarization wave in the directions x when receiving terminal excitation at Antenna Far Field, thus into
One step improves isolation characteristic between transmitting terminal and receiving terminal.
3, for the utility model when transmitting terminal encourages, the amplitude of signal two T-type probes of arrival is equal and phase differs 180
Degree, the cross polar component of generation cancels out each other, therefore antenna is when emission port encourages, the cross-pole on antenna pattern
Change component to increase relative to duplexed antenna in two traditional probe feed bands.
Description of the drawings
Fig. 1 is total schematic diagram of the present embodiment and the number mark of chief component；
Fig. 2 is total schematic diagram of the present embodiment and the number mark of refinement；
Fig. 3 is the front section view of the present embodiment antenna；
Fig. 4 is the vertical 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 vertical 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 present embodiment layer dielectric upper surface of base plate size marking figure；
Figure 11 is the size marking figure of the present embodiment layer dielectric base lower surface structure；
Figure 12 (a) is that the 2.4GHz for the interior full-duplex antenna of band that the present embodiment port 1 is encouraged emulates surface current distribution；
Figure 12 (b) is that the 2.4GHz for the interior full-duplex antenna of band that the present embodiment port 2 is encouraged emulates surface current distribution；
Figure 13 is the test S parameter curve graph of the present embodiment antenna；
Figure 14 (a) is the faces the xoz measurement direction figure of the present embodiment antenna port 1 (2.4GHz) excitation；
Figure 14 (b) is the faces the yoz measurement direction figure of the present embodiment antenna port 1 (2.4GHz) excitation；
Figure 15 (a) is the faces the xoz measurement direction figure of the present embodiment antenna port 2 (2.4GHz) excitation；
Figure 15 (b) is the faces the yoz measurement direction figure of the present embodiment antenna port 2 (2.4GHz) excitation.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment
Referring to Fig.1, Fig. 2 and Fig. 3, the present embodiment mix the interior full-duplex antenna of band of ring, including a pros based on 180 degree
The micro-strip radiation patch 1 of shape, two T-type probes for being used for couple feed, wherein two T-type probes are respectively by first level arm 2, the
One upright arm 4 and the second horizontal arm 3 and the second upright arm 5 composition and a 180 degree mix ring feeding network, described
It includes three sections of quarter-wave first microstrip lines 14, the second microstrip line 15 and third micro-strip that 180 degree, which mixes ring feeding network,
The micro-strip radiation patch 1 of 4th microstrip line 17 of line 16 and one section of 3/4ths wavelength, the square is printed on upper layer
The upper surface of medium substrate 12, the first level arm 2 and the second horizontal arm 3 of the two T-type probes for couple feed are printed on
The back side of layer medium substrate 12,180 degree mixing ring feeding network are printed on the back side of layer dielectric substrate 13, and 180 degree mixes ring
Two isolated ports of feeding network are drawn by the 5th microstrip line 10 of the first impedance transformation line 8, the second impedance transformation line 9 and 50 Ω
Go out, is used separately as transmitting terminal (port 1) and receiving terminal (port 2), its another two port then the 6th micro-strip through 50 Ω respectively
Line 6 and the 7th microstrip line 7 are drawn, respectively with the first through hole 18 and second on reflection floor 11 and layer dielectric substrate 13
First upright arm 4 of two T-type probes of through-hole 19 is connected with the second upright arm 5, and the first upright arm 4 and the second upright arm 5 are again
It is connected respectively with first level arm 2 and the second horizontal arm 3.
When sending, it sends signal to be sent into from transmitting terminal (port 1), be arrived simultaneously respectively by the 5th microstrip line 10 of 50 Ω
Two ports of ring feeding network are mixed up to 180 degree, two ports are respectively by the 6th microstrip line 6 of 50 Ω and the 7th microstrip line 7
It draws, signal is transmitted to two T respectively by the two of two T-type probes vertical the first upright arms 4 and the second upright arm 5 respectively later
The two of type probe horizontal first level arm 2 and the second horizontal arm 3,2 and second horizontal arm 3 of final first level arm simultaneously will letter
Number being coupled to square patch radiate.Since signal reaches the amplitude phase of two horizontal first level arms 2 and the second horizontal arm 3
Deng and phase differ 180 degree, the line polarization wave in the directions y can be generated at Antenna Far Field.
It when receiving the line polarization wave in the directions x, receives signal and is received from square-shaped radiation patch 1, square-shaped radiation patch 1 will
The signal that receives while the first level arm 2 and the second horizontal arm 3, first level arm 2 and the second water for being coupled to two T-type probes
Signal is delivered separately to two vertical the first upright arms 4 and the second upright arm 5 of two T-type probes, the first upright arm by flat arm 3 again
4 and second upright arm 5 signal passed into 180 degree again mix two of ring feeding network respectively by the 6th microstrip line 6 of 50 Ω
The port drawn with the 7th microstrip line 7, the signal finally transmitted by the 6th microstrip line 6 and the 7th microstrip line 7 arrival first simultaneously
Impedance transformation line 8, the second impedance transformation line 9 are exported from receiving terminal (port 2).
Fig. 4,5,6,7 are respectively the electrical structure diagram of two medium substrate upper and lower surfaces, and striped fill part is conductive copper
The structure of covering, rest part are medium substrate.
Fig. 8,9,10,11 are the size marking figure of each section electrical structure.
In conjunction with Fig. 8, Fig. 9, Figure 10, the size marking of Figure 11, the design parameter of antenna is as follows in the present embodiment：Two media
The material of plate is identical with size, and thickness c is 0.8mm, and width b is 100mm, and length a is 100mm.Height between two dielectric-slabs
Degree h is 6mm.The length of side 1a of the square patch and spacing 1b apart from dielectric-slab edge is respectively 44mm, 28mm.One T-type probe
The length and width 2a, 2b of first level arm 2 be respectively 5.6mm, 2mm, the length of the second horizontal arm 3 of another T-type probe
It is respectively 5.6mm, 2mm with width 3a, 3b, reflects on floor two through hole center respectively apart from dielectric-slab Edge Distance 18a, 19a
For 12.5mm, the key dimension 6a, 6b, 6c of 180 degree mixing ring feeding network are respectively 6.78mm, 5.42mm, 2.25mm, 7a,
7b, 7c are respectively 6.78mm, 5.42mm, 2.25mm, and 8a, 8b are respectively 19.4mm, 1.5mm, 9a, and 9b is respectively 9.6mm,
2.25mm, 10a, 10b are respectively 28.2mm, 2.25mm, 14a, and 14b is respectively 21mm, 19.72mm, 15a, and 15b is respectively
21mm, 19.72mm, 16a, 16b are respectively 21mm, 19.72mm, 17a, and 17b is respectively 21mm, 19.72mm.The port of the antenna
1 is operated in the frequency band of 2.45GHz, as sending port.Port 2 is operated in the frequency band of 2.4GHz, as receiving port.Port 1
When excitation, antenna can generate the line polarization wave in the directions y in far field；When port 2 is encouraged, antenna then generates the line in the directions x in far field
Polarized wave.As known to Surface current distribution of the patch in 2.4GHz in Figure 12.In two frequency bands, the isolation of two ports
It is all higher than 35dB, such as Figure 13.When the port of antenna 1 works, gain of the antenna at 1 working frequency 2.4GHz of port is
The cross polarization ratio in the face 8.6dBi, E and the faces H is all higher than 25dB, and when the port of antenna 2 works, antenna is in 2 working frequency of port
Gain at 2.14GHz is 8.1dBi, and the cross polarization ratio in the faces E is more than 30dB, the faces H cross polarization ratio 10dB, such as imitating for antenna
True measurement direction Figure 14, shown in 15.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned
The limitation of embodiment, under other any Spirit Essences and principle without departing from the utility model made by change, modify, replace
In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (5)
1. a kind of interior full-duplex antenna of band mixing ring based on 180 degree, which is characterized in that the interior full-duplex antenna of the band includes
Upper layer medium substrate, layer dielectric substrate and two are used for the T-type probe of couple feed, and two of which T-type probe is respectively by the
One horizontal arm and the first upright arm and the second horizontal arm and the second upright arm vertical connection are constituted,
The upper surface of the upper layer medium substrate is printed with rectangular micro-strip radiation patch, under the layer dielectric substrate
Surface is printed with the first level arm and second horizontal arm,
The upper surface of the layer dielectric substrate is printed with reflection floor, and the lower surface of the layer dielectric substrate is printed with
180 degree mixes ring feeding network, and it includes three sections of quarter-wave first micro-strips that the 180 degree, which mixes ring feeding network,
4th microstrip line of line, the second microstrip line and third microstrip line and one section of 3/4ths wavelength, the 180 degree mix ring feedback
Electric network includes four ports, wherein two ports are as isolated port by the first impedance transformation line of different impedances and second
Impedance transformation line and the 5th microstrip line are drawn, and transmitting terminal and receiving terminal are used separately as；Another two port is then micro- through the 6th respectively
Band line and the 7th microstrip line are drawn, and are connected with the first upright arm of two T-type probes and the second upright arm.
2. the band interior full-duplex antenna according to claim 1 for mixing ring based on 180 degree, which is characterized in that described the
One horizontal arm and second horizontal arm are rectangular microstrips, and along the diagonal line position of the rectangular micro-strip radiation patch
It sets symmetrically placed, is mutually orthogonal to one another.
3. the band interior full-duplex antenna according to claim 1 for mixing ring based on 180 degree, which is characterized in that described the
One upright arm and second upright arm are metal probes, and the both sides of the geometric center positioned at rectangular micro-strip radiation patch
Symmetric position, while one end of two metal probes is connected with the 6th microstrip line and the 7th microstrip line respectively, the other end is then distinguished
Through-hole on reflection floor and layer dielectric substrate is connected with two horizontal arms of two T-type probes.
4. the band interior full-duplex antenna according to claim 1 for mixing ring based on 180 degree, which is characterized in that signal is through hair
The port for penetrating end arrives separately at two T-type probes, and the signal amplitude of two T-type probes of arrival is equal and phase differs 180 degree, it
Rectangular micro-strip is coupled to by the first level arm and the second horizontal arm of two horizontal directions of two T-type probes afterwards and radiates patch
Piece is radiate, and the line polarization wave in the directions y is generated at Antenna Far Field.
5. the band interior full-duplex antenna according to claim 1 for mixing ring based on 180 degree, which is characterized in that signal is through connecing
The port of receiving end arrives separately at two T-type probes, and the signal amplitude and phase of two T-type probes of arrival are equal, pass through later
The first level arm and the second horizontal arm of two horizontal directions of two T-type probes are coupled to rectangular micro-strip radiation patch radiation
It goes out, the line polarization wave in the directions x is generated at Antenna Far Field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721584060.8U CN207967321U (en) | 2017-11-23 | 2017-11-23 | The interior full-duplex antenna of band of ring is mixed based on 180 degree |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721584060.8U CN207967321U (en) | 2017-11-23 | 2017-11-23 | The interior full-duplex antenna of band of ring is mixed based on 180 degree |
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| CN207967321U true CN207967321U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721584060.8U Expired - Fee Related CN207967321U (en) | 2017-11-23 | 2017-11-23 | The interior full-duplex antenna of band of ring is mixed based on 180 degree |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809008A (en) * | 2017-11-23 | 2018-03-16 | 东莞理工学院 | The interior full-duplex antenna of band based on 180 degree mixing ring |
| 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 |
| WO2021258362A1 (en) | 2020-06-24 | 2021-12-30 | Nokia Shanghai Bell Co., Ltd. | Improvement on isolation between antennas |
-
2017
- 2017-11-23 CN CN201721584060.8U patent/CN207967321U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809008A (en) * | 2017-11-23 | 2018-03-16 | 东莞理工学院 | The interior full-duplex antenna of band based on 180 degree mixing ring |
| CN107809008B (en) * | 2017-11-23 | 2024-03-15 | 东莞理工学院 | In-band full duplex antenna based on 180-degree hybrid loop |
| 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 |
| WO2021258362A1 (en) | 2020-06-24 | 2021-12-30 | Nokia Shanghai Bell Co., Ltd. | Improvement on isolation between antennas |
| EP4173081A4 (en) * | 2020-06-24 | 2024-07-03 | Nokia Technologies Oy | Improvement on isolation between antennas |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20201123 |