CN205723890U - A kind of 20GHz ultra broadband combiner of band isolation - Google Patents
A kind of 20GHz ultra broadband combiner of band isolation Download PDFInfo
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- CN205723890U CN205723890U CN201620558942.6U CN201620558942U CN205723890U CN 205723890 U CN205723890 U CN 205723890U CN 201620558942 U CN201620558942 U CN 201620558942U CN 205723890 U CN205723890 U CN 205723890U
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Abstract
The utility model discloses the 20GHz ultra broadband combiner of a kind of band isolation, including metal case (4), cover plate (7), magnet ring (5) and microwave planar circuit plate (6)；The first radio-frequency joint (1), the second radio-frequency joint (2) and the 3rd radio-frequency joint (3) it is respectively equipped with in described metal case (4)；Described microwave planar circuit plate (6) and magnet ring (5) are all built in metal case (4)；Described microwave planar circuit plate (6) is connected with the first radio-frequency joint (1), the second radio-frequency joint (2) and the 3rd radio-frequency joint (3) respectively；Described magnet ring (5) is enclosed within microwave planar circuit plate (6) and connects on the position of the 3rd radio-frequency joint (3)；Described cover plate (7) then covers in metal case (4).This utility model achieves bandwidth can reach 20GHz more than 2000 octaves, upper limiting frequency；Solve the crosstalk of signal, improve the flatness of the degree of coupling and Insertion Loss, improve the directivity of directional coupler.
Description
Technical field
The present invention relates to microwave, radio frequency arts, the 20GHz ultra broadband particularly relating to a kind of band isolation closes road
Device.
Background technology
Combiner belongs to Films In Passive Microwave Devices, is mainly used in power combing and distribution.Combiner typically has two or more
Input port, only one of which output port.Interport isolation is an important index, is used for describing two paths of signals the most not
The ability of impact.
T junction combiner in early days, this combiner structure is simple, easily realizes.But, its deficiency is that two-way inputs
Port does not has isolation, and two input ports are mutually revealed, and interferes serious, and each port of T junction combiner is can not
Reach matching status simultaneously.
Wilkinson combiner, solves each port of T junction combiner and can not reach the problem of coupling, and respectively simultaneously
Port has the lowest standing-wave ratio, and two input port isolations are high.But for 20GHz so ultra broadband, Wilkinson closes road
Device is the most helpless, because having used 1/4 wave microstrip line inside it, it is limited that this just determines its bandwidth available, its
The demand of arrowband can only be met.
Synistor combiner, advantage is that principle is simple, the non-constant width of low cost, bandwidth, each port are all coupling,
Each port can both can also be as output port as input port.But having two deficiencies: first, this network is to have consumption
, resistor network inherently consumes 3dB power, adds merit and divides, thus reaches the loss of 6dB.Second, because resistance
The high symmetry of network, two input ports do not have isolation.
Chinese patent: a kind of passive broadband combiner (CN204067536U) disclose a kind of combiner will existing 2G, 3G and
4G network signal all closes road together, and isolation is high each other, together covers through antenna, easy construction,
Cost-effective, it is widely used in moving communicating field.It actually belongs to arrowband combiner, after all GSM, DCS, WCDMA and LTE
From the point of view of whole microwave frequency band, namely tens ~ hundreds of order of megahertz.This patent just for civilian mobile communication frequency range,
And frequency range is discrete, non-universal combiner.
And Chinese patent: a kind of wideband band wire combiner (CN203574080U), ultra-wideband combiner
(CN202196847U), ultra-wideband combiner (CN201877551U), a kind of broadband combiner (CN203339282U), Yi Zhongduo
Frequency range band combiner (CN203242728U) and broadband combiner (CN201766151U) are substantially employing cavity, resonant rod
The method such as (excellent), wave filter, adjusting screw rod, coupling column realizes, complicated structure, volume are relatively big, debugging difficulty is the least and
Equipment is heavy.
United States Patent (USP) Broadband coupled-line power combiner/divider(US6472950B1) then
The method using coupling line array achieves N road signal and closes road, and not only structure is complicated, and there is also frequency band and be extremely difficult to superelevation
The problem of frequency.
In sum, it is necessary to a kind of Novel combiner of design, to meet the ultra broadband insulated degree requirement of 20GHz.
Summary of the invention
For above-mentioned technical deficiency, the invention provides the 20GHz ultra broadband combiner of a kind of band isolation, which employs
6dB bridge type hybrid resistor networking principle design, is possible not only to realize the ultra broadband of 20GHz, meet civilian mobile communication, light lead to
The application demand of the extraordinary frequency field of letter, part, and combiner two input port has higher isolation.
For achieving the above object, the technical solution used in the present invention is as follows:
The 20GHz ultra broadband combiner of a kind of band isolation, including metal case, cover plate, magnet ring and according to 6dB electric bridge
The microwave planar circuit plate of formula hybrid resistor networking principle design；Be respectively equipped with in described metal case the first radio-frequency joint,
Two radio-frequency joints and the 3rd radio-frequency joint；Described microwave planar circuit plate and magnet ring are all built in metal case；Described microwave
Planar circuit board is connected with the first radio-frequency joint, the second radio-frequency joint and the 3rd radio-frequency joint respectively；Described magnet ring is enclosed within microwave
Planar circuit board connects on the position of the 3rd radio-frequency joint, for ensureing to realize selection and the filter of signal in required frequency range
Remove；Described cover plate then covers in metal case, it is achieved fully seals metal case inside and reduces resonance.
Specifically, described microwave planar circuit plate include the first port, the second port, the 3rd port, the first resistance,
Two resistance, the 3rd resistance and include the microwave planar printed board of the first reference plane and the second reference plane；Described first
Port is positioned at the first radio-frequency joint；Described second port is positioned at the second radio-frequency joint；Described 3rd port is positioned at the 3rd and penetrates
Frequently joint；Described first resistance is connected with the first port and the second port simultaneously；With the second port while of described second resistance
Connect with the second reference plane；Described 3rd resistance is connected with the first reference plane and the second reference plane simultaneously.
Further, described first port and the second port are arranged in the first reference plane, these first reference plane
Collective reference ground as the first port and the second port；Described 3rd port is arranged in the second reference plane, this second ginseng
Examine plane and be used as the reference ground of the 3rd port.
Yet further, described first port connects the first holding wire being arranged in microwave planar printed board；Described
Second port connects the secondary signal line being arranged in microwave planar printed board；Described 3rd port connects to be had and the first signal
3rd holding wire of line connection, and the 3rd holding wire and the second reference plane together run through magnet ring；Described first resistance one end
Being welded on the first holding wire, the other end is welded on secondary signal line；Described second resistance one end is welded on secondary signal line
On, the other end is welded in the second reference plane.
Compared with prior art, the method have the advantages that
(1) band of the present invention wide (20GHz can be realized), simple in construction, technical specification excellent (loss 6dB, isolation
More than 20dB, more than input and output return loss 13dB).
(2) compared to Wilkinson combiner with for, the present invention solves the bandwidth that 1/4 wave microstrip line is brought
Wretched insufficiency problem, the microwave planar circuit plate (according to 6dB bridge type hybrid resistor networking principle design) by design is permissible
Realize available band and reach 20GHz, it is achieved ultra broadband.Meanwhile, Wilkinson combiner often needs to reach the widest bandwidth
The size of microwave circuit to be increased meets the requirement in broadband, and therefore volume is the biggest, and compact of the present invention, one-tenth
This is cheap.
(3), for compared to synistor combiner, the isolation that present invention achieves on 20GHz ultra broadband reaches
More than 20dB, and the combiner design of synistor is due to the symmetry of its height, all of the port can be both as input
Port can also be as output port so that isolation does not has substantially.
(4), for compared to common cavity, tuning plug (excellent) pattern, the present invention uses microwave planar circuit innovatively
Plate structure designs, and has coordinated the metal case structure of high conductivity and some magnet rings that suppression low frequency performance is good, thus not
Only it is easily achieved and debugs, and processing technology is simple.
(5) for specialized narrowband combiner (multiplefrequency mixer in such as mobile communication system), the present invention can be more
Adding generalization, its purposes is not limited by local segments.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the schematic diagram at 6dB bridge type hybrid resistor networking.
Fig. 3 is the structural representation of microwave planar circuit plate in the present invention.
Fig. 4 is loss of the present invention and isolation degree test curve synoptic diagram.
Fig. 5 is the present invention each reflection coefficient of port loss test curve synoptic diagram.
Wherein, corresponding entitled of reference:
1-the first radio-frequency joint, 2-the second radio-frequency joint, 3-the 3rd radio-frequency joint, 4-metal case, 5-magnet ring, 6-microwave
Planar circuit board, 61-the first port, 62-the second port, 63-the 3rd port, 64-the first resistance, 65-the second resistance, 66-
Three resistance, 67-microwave planar printed board, 68-the first reference plane, 69-the second reference plane, 7-cover plate.
Detailed description of the invention
The invention will be further described with embodiment in explanation below in conjunction with the accompanying drawings, and the mode of the present invention includes but not only limits
In following example.
As it is shown in figure 1, the invention provides the 20GHz ultra broadband combiner of a kind of band isolation, it includes metal case
4, cover plate 7, magnet ring 5 and microwave planar circuit plate 6.Described microwave planar circuit plate 6 and magnet ring 5 are all built in metal case 4
In；And microwave planar circuit plate 6 is connected with first radio-frequency joint the 1, second radio-frequency joint 2 and the 3rd radio-frequency joint 3 respectively.Described
Cover plate 7 then covers in metal case 4.
In the present embodiment, described microwave planar circuit plate 6 is according to 6dB bridge type hybrid resistor networking principle design
, the principle at 6dB bridge type hybrid resistor networking as in figure 2 it is shown, in Fig. 2, port 1 and port 2, the transmission of port 1 and port 3
Loss is 6dB, and port 2 is 20dB with the isolation of port 3, and port 1, port 2, port 3 return loss can reach 15 dB.Fig. 2
In have 3 ports, when using in combiner, port 1 as output port, port 2 and port 3 simultaneously as input port (by
It is passive, reciprocity in combiner, thus can use in turn)；And when being used as in power splitter, port 1 as input port,
Port 2 and port 3 are simultaneously as output port.Port 2 and port 3 must be simultaneously in identical duty.
In above-mentioned port, port 1, the reference ground of port 2 are reference mode 1, and the reference ground of port 3 is reference mode 2.Ginseng
It is not same with reference to ground for examining node 1 with reference mode 2, is not directly dependent upon.And resistance 1 is connected to port 1 and port 2, electricity
Resistance 2 is connected to port 2 and reference mode 2, and resistance 3 is connected to reference mode 1 and reference mode 2.In three ports, a ports having
1 is directly to connect with the holding wire of port 3.
According to above-mentioned theory basis, as it is shown on figure 3, the microwave planar circuit plate 6 in the present invention include the first port 61, the
Two-port netwerk the 62, the 3rd port the 63, first resistance the 64, second resistance the 65, the 3rd resistance 66 and include the first reference plane 68
Microwave planar printed board 67 with the second reference plane 69.Described first port 61 and the second port 62 are arranged at the first reference
In plane 68, these first reference plane 68 are used as the collective reference ground of the first port 61 and the second port 62；Described 3rd port
63 are arranged in the second reference plane 69, and these second reference plane 69 are used as the reference ground of the 3rd port 63.And described first
Port 61 is positioned at the first radio-frequency joint 1；Described second port 62 is positioned at the second radio-frequency joint 2；Described 3rd port 63
At the 3rd radio-frequency joint 3.
Described first resistance 64 is connected with the first port 61 and the second port 62 simultaneously；Described second resistance 65 is simultaneously with the
Two-port netwerk 62 and the second reference plane 69 connect；With the first reference plane 68 and the second reference plane while of described 3rd resistance 66
69 connect.
Described magnet ring 5 be enclosed within microwave planar circuit plate 6 connect on the position of the 3rd radio-frequency joint 3 (the i.e. the 3rd holding wire with
Second reference plane together run through magnet ring 5), for ensureing realize the selection of signal in required frequency range and filter.
Testing this combiner with vector network analyzer, the loss obtained with isolation curve as shown in Figure 4, and is closed
In the device of road, each reflection coefficient of port is lost the most as shown in Figure 5.
The present invention is designed by rational structure, not only solves existing Wilkinson combiner bandwidth and is difficult to realize surpassing
The technical barrier in broadband, and solve the isolation problem of synistor combiner, and avoid cavity combiner and deposit
The problem that structure is complicated, debugging difficulty is big, meanwhile, the present invention is not limited by application band, and versatility is higher.Cause
This, compared with prior art, progress of the present invention is fairly obvious, and it has substantial feature and progress.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit the protection model of the present invention
Enclosing, all body design thought in the present invention and the change having no essential meaning made mentally or polishing, it is solved
Technical problem is the most consistent with the present invention, within all should being included in protection scope of the present invention.
Claims (4)
1. the 20GHz ultra broadband combiner of a band isolation, it is characterised in that include metal case (4), cover plate (7), magnet ring
(5) and according to the microwave planar circuit plate (6) of 6dB bridge type hybrid resistor networking principle design；In described metal case (4)
It is respectively equipped with the first radio-frequency joint (1), the second radio-frequency joint (2) and the 3rd radio-frequency joint (3)；Described microwave planar circuit plate
(6) all it is built in metal case (4) with magnet ring (5)；Described microwave planar circuit plate (6) respectively with the first radio-frequency joint (1),
Second radio-frequency joint (2) and the 3rd radio-frequency joint (3) connect；Described magnet ring (5) is enclosed within microwave planar circuit plate (6) and connects the 3rd
On the position of radio-frequency joint (3), for ensureing realize the selection of signal in required frequency range and filter；Described cover plate (7) is then
Cover in metal case (4), it is achieved metal case inside is fully sealed and reduces resonance.
The 20GHz ultra broadband combiner of a kind of band isolation the most according to claim 1, it is characterised in that described microwave
Planar circuit board (6) includes the first port (61), the second port (62), the 3rd port (63), the first resistance (64), the second resistance
(65), the 3rd resistance (66) and include the first reference plane (68) and the microwave planar printed board of the second reference plane (69)
(67)；Described first port (61) is positioned at the first radio-frequency joint (1) place；Described second port (62) is positioned at the second radio-frequency joint
(2) place；Described 3rd port (63) is positioned at the 3rd radio-frequency joint (3) place；With the first port while of described first resistance (64)
(61) and the second port (62) connects；Described second resistance (65) connects with the second port (62) and the second reference plane (69) simultaneously
Connect；Described 3rd resistance (66) is connected with the first reference plane (68) and the second reference plane (69) simultaneously.
The 20GHz ultra broadband combiner of a kind of band isolation the most according to claim 2, it is characterised in that described first
Port (61) and the second port (62) are arranged in the first reference plane (68), and these first reference plane (68) are used as the first end
The collective reference ground of mouth (61) and the second port (62)；Described 3rd port (63) is arranged in the second reference plane (69), should
Second reference plane (69) are used as the reference ground of the 3rd port (63).
The 20GHz ultra broadband combiner of a kind of band isolation the most according to claim 3, it is characterised in that described first
Port (61) connects the first holding wire being arranged in microwave planar printed board (67)；The connection of described second port (62) sets
Put the secondary signal line in microwave planar printed board (67)；Described 3rd port (63) connects to have and connects with the first holding wire
3rd holding wire, and the 3rd holding wire and the second reference plane together run through magnet ring (5)；Described first resistance (64) one end is welded
Being connected on the first holding wire, the other end is welded on secondary signal line；Described second resistance (65) one end is welded on secondary signal
On line, the other end is welded in the second reference plane (69).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558942.6U CN205723890U (en) | 2016-06-12 | 2016-06-12 | A kind of 20GHz ultra broadband combiner of band isolation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620558942.6U CN205723890U (en) | 2016-06-12 | 2016-06-12 | A kind of 20GHz ultra broadband combiner of band isolation |
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| Publication Number | Publication Date |
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| CN205723890U true CN205723890U (en) | 2016-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870557A (en) * | 2016-06-12 | 2016-08-17 | 杨军 | 20GHz ultra-wideband combiner provided with isolation degree |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870557A (en) * | 2016-06-12 | 2016-08-17 | 杨军 | 20GHz ultra-wideband combiner provided with isolation degree |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210222 Address after: 519040 block a, Jinqiao Daxia, Jinwan Sanzao Town, Zhuhai City, Guangdong Province Patentee after: ZHUHAI TIANQI TECHNOLOGY Co.,Ltd. Address before: Room 305, building C, 27 yayingshi Road, Science City, Guangzhou, Guangdong 510000 Patentee before: ZHUHAI SIKAIDA TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |