CN107689472A - A kind of efficient, low-loss broadband waveguide microstrip transitions device - Google Patents
A kind of efficient, low-loss broadband waveguide microstrip transitions device Download PDFInfo
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- CN107689472A CN107689472A CN201710566658.2A CN201710566658A CN107689472A CN 107689472 A CN107689472 A CN 107689472A CN 201710566658 A CN201710566658 A CN 201710566658A CN 107689472 A CN107689472 A CN 107689472A
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- 230000007704 transition Effects 0.000 title claims abstract description 22
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- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
- H01P5/107—Hollow-waveguide/strip-line transitions
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Abstract
A kind of efficient, low-loss broadband waveguide microstrip transitions device, including：Tail feedback ladder (1), housing (3), glass insulator (6), tuning screw (7)；Tail feedback ladder (1) is arranged on waveguide cavity (2) inwall of housing (3), and the cross recess elastic interface (4) on side is connected with glass insulator (6)；In the cross recess of contact pin (5) insertion cross recess elastic interface (4) end of glass insulator (6) one end, the other end of glass insulator (6) is connected with back-end circuit；Each tuning screw (7) is inserted from waveguide cavity (2) side wall, relative with the step surface of tail feedback ladder (1).The present invention overcomes the limitation of existing conventional pilot microstrip transitions technology, the standing-wave ratio obtained, Insertion Loss, broadband response while, simplify technique process, while have good uniformity.
Description
Technical field
The present invention relates to a kind of broadband waveguide-microstrip transitions device, belong to Radar-Communication field.
Background technology
With the development of millimetre integrated circuit, many application systems propose the waveguide integrated with microstrip IC
The demand of microstrip transitions.The indices such as standing-wave ratio, insertion loss and response frequency width of Waveguide-microbelt conversion directly affect
Whole system performance, it designs difficulty of processing and directly decides the possibility that technique productions are realized.So hair of this technology
Exhibition increasingly turns into focus of concern.
Up to the present, the method for Waveguide-microbelt conversion mainly has three kinds：Fin line is changed, ridge waveguide conversion, probe conversion.
Ridge waveguide conversion is a kind of simple and has the mode of good transition characteristic, but needs accurate machining, volume
Also it is larger.This just necessarily causes integrated circuit shielding shell cost too high, even more so to millimeter wave frequency band.
Compared with ridge waveguide is changed, fin line type conversion is relative simple.This is due to that fin line type conversion is exchange coupling
Close, blocking, is the circuit that is printed on substrate, rather than mechanical structure.But this conversion designs difficulty of processing is very high,
And its band internal loss is also bigger, directly reduces systematic function.
Probe conversion is a kind of method more commonly used at present, is to insert microstrip probe from the center of waveguide broadside, one
Kind be medium side perpendicular to waveguide transmission direction, turn into H faces probe；One kind is medium side parallel to waveguide transmission direction, referred to as E
Face probe.The mode of probe conversion has that insertion loss is low, return loss is small, responsive bandwidth is wider and compact-sized, processing
Convenient, handling are easy, are a kind of more commonly used high-quality conversion regimes, but are needed in its technique process using multi-temperature ladder
Degree welding, uniformity is poor, and this shortcoming constrains production in enormous quantities, can substantially reduce product qualified rate.
In summary, there is the shortcomings of cost is too high, difficulty of processing is big, uniformity is poor in prior art.
The content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiencies in the prior art, the invention provides a kind of efficient, low damage
Consume broadband waveguide-microstrip transitions device, overcome the limitation of existing conventional pilot-microstrip transitions technology, the standing-wave ratio obtained,
While ground Insertion Loss, broadband response, simplify technique process, while have good uniformity, be easy to high-volume to go into operation.
The technical solution adopted in the present invention is：A kind of efficient, low-loss broadband waveguide-microstrip transitions device, including：Tail
Present ladder, housing, glass insulator, tuning screw；Tail feedback ladder is arranged on the waveguide cavity wall of housing, the cross on side
Groove elastic interface is connected with glass insulator；The cross recess of the contact pin insertion cross recess elastic interface end of glass insulator one end
In, the other end of glass insulator is connected with back-end circuit；Each tuning screw inserts from waveguide cavity side wall, the platform with tail feedback ladder
Terrace is relative.
The housing is connected by ring flange with external equipment, and housing cavity is divided into two cavitys, ripple by internal dividing plate
Guide cavity is the cavity close to ring flange side.
The tail feedback ladder is structure as a whole, including stepped portion, cross recess elastic interface, coupling part；Stepped portion
A face be step surface, by coupling part be arranged on waveguide cavity wall on；Cross recess elastic interface is cylinder, and one end adds
Work cross recess, the other end are connected to stepped portion side, and cross recess elastic interface inserts dividing plate center from the dividing plate side of housing
In through hole, it is connected with the contact pin of the glass insulator of dividing plate opposite side.
The cross recess elastic interface is elastic construction, and material is beryllium-bronze.
Electrical property simulation result during the tail feedback ladder emulates in 3 D electromagnetic field meets：Frequency be 26GHz~
In the range of 40GHz, return loss≤- 20dB.
The present invention compared with prior art the advantages of be：
(1) present invention is compared with conventional art, tail in conventional art middle width strip waveguide-microstrip transitions waveguide feedback ladder with
Waveguide sheet is as Split type structure, and the present invention is obtained using tail feedback hierarchic structure integration, electrical property (bandwidth, standing wave loss etc.)
Improve, and can recycle to reduce design processing cost, tail feedback hierarchic structure is without welding, easy for installation, using flexible degree
It is high.
(2) present invention uses glass compared with conventional art between the waveguide of Conventional wide band waveguide-microstrip transitions and micro-strip
Insulator is rigidly connected, it is necessary to secondary welding, requires that aperture is slightly larger than pin footpath in processing, coaxial required precision is higher, realisation
Difference, and the cross recess of waveguide joint face of the present invention is heat-treated by special technique, without secondary welding, reaches elasticity press-in effect
Fruit, handling ease, and resistance to stress ability is stronger.
(3) General design of the invention largely reduces the waste of hardware resource and develops processing charges,
Greater flexibility and cost benefit are brought for product, in the case of model change is quick, is had great significance, body
Product is small, machining accuracy is high.
(4) efficient, low-loss broadband waveguide-microstrip transitions device of the invention can efficiently complete microwave and millimeter wave signal
Low-loss, high-efficiency transfer.
Brief description of the drawings
Fig. 1 is a kind of efficient, structural profile illustration of low-loss broadband waveguide-microstrip transitions device.
Fig. 2 is the texture edge diagrammatic cross-section of cross recess elastic interface.
Fig. 3 is the structure front cross-sectional schematic diagram of cross recess elastic interface.
Fig. 4 is the simulation model schematic diagram that tail presents ladder and cross recess elastic interface.
Embodiment
As shown in figure 1, a kind of efficient, low-loss broadband waveguide-microstrip transitions device, including：Tail feedback ladder 1, housing 3,
Glass insulator 6, tuning screw 7；Housing 3 is connected by ring flange with external equipment, and the inner chamber of housing 3 is divided into by internal dividing plate
Former and later two chambers, the one end for having ring flange are waveguide cavity 2；
The tail feedback structure of ladder 1 uses multistage hierarchic structure, it is possible to achieve ultra-wideband response.Tail feedback ladder 1 is structure as a whole,
Including stepped portion, cross recess elastic interface 4, coupling part；One face of stepped portion is step surface, is pacified by coupling part
On the inwall of waveguide cavity 2；Cross recess elastic interface 4 is cylinder, and one end processes cross recess, and the other end is connected to stepped portion
Side, cross recess elastic interface 4 out of the insertion of the dividing plate side of housing 3 dividing plate central through hole, the contact pin 5 of glass insulator 6 from
Dividing plate opposite side penetrates dividing plate centre bore and inserted in the cross recess of cross recess elastic interface 4.Each tuning screw 7 is from waveguide cavity 2
Side wall is inserted, relative with the step surface of tail feedback ladder 1.
As shown in Figure 2 and Figure 3, cross recess elastic interface 4 is elastic construction, has contractile function, by glass insulator contact pin
, can normal transmission radiofrequency signal without welding in 5 insertion cross recess elastic interfaces 4；The other end of glass insulator 6 and rear end
Circuit is connected, and broadband waveguide-good return loss of microstrip transitions device is obtained by adjusting tuning screw 7 up and down.
As shown in figure 4, in the present embodiment, built according to the 3 D electromagnetic field simulation software HFSS 11.0 of Ansoft companies
Vertical tail presents ladder simulation model, carries out electrical property emulation, and simulation result is shown in frequency in the range of 26GHz~40GHz, to return
Ripple loss is superior to -20dB, and ladder 1 and cross recess elastic interface 4 are presented according to showing methods tail derived from the simulation result.
Cross recess elastic interface 4 contrasts conventional rigid interface, realizes pin hole elasticity docking, improves the electrical of radio frequency interface
Can, the stress in practical service environment can be buffered, and pin hole fit precision requirement is reduced, reduce construction machine difficult processing
Degree, technique is realized simple and easy to do.The structure of cross recess elastic interface 4 is processed using beryllium-bronze material, best results.Beryllium-bronze
Good mechanical performance, intensity is high and has very high conductive capability.Cold deformation is carried out after solution heat treatment, Ageing Treatment adds
After stress relief annealing, there is fabulous elastic limit, hardness strength is also improved.
It is related to many high frequency connectors in microwave and millimeter wave product, such as bead, SMP, porous to plug-and-socket, with electronics
Product is minimized, integrated development, and the problem of more multichannel interfaces and square formation interface dock is encountered in design process, is passed
The Hard link of system is influenceed the docking performance it is difficult to ensure that interface by fit precision, and above-mentioned elastic pressing-in technology solves this in time
Problem, moreover it is possible to reduce the design difficulty of interface, there is good application prospect.
Microwave and millimeter wave can be efficiently completed using efficient, the low-loss broadband waveguide-microstrip transitions device of the present invention to believe
Number low-loss, high-efficiency transfer.Such as：The rear end of glass insulator 6, can be to complete amplified signal if amplifying circuit
Transfer function；If the rear end of glass insulator 6 is frequency changer circuit, you can completes frequency variation signal transfer function.
To each building block, position relationship and connected mode of the invention in the case where not changing its function, progress
Equivalent transformation or replacement, also fall into protection scope of the present invention.
Unspecified part of the present invention belongs to technology as well known to those skilled in the art.
Claims (5)
- A kind of 1. efficient, low-loss broadband waveguide-microstrip transitions device, it is characterised in that including：Tail feedback ladder (1), housing (3), glass insulator (6), tuning screw (7)；Tail feedback ladder (1) is arranged on waveguide cavity (2) inwall of housing (3), side On cross recess elastic interface (4) be connected with glass insulator (6)；Contact pin (5) the insertion cross recess of glass insulator (6) one end In the cross recess of elastic interface (4) end, the other end of glass insulator (6) is connected with back-end circuit；Each tuning screw (7) from Waveguide cavity (2) side wall is inserted, relative with the step surface of tail feedback ladder (1).
- A kind of 2. efficient, low-loss broadband waveguide-microstrip transitions device according to claim 1, it is characterised in that：It is described Housing (3) is connected by ring flange with external equipment, and housing (3) inner chamber is divided into two cavitys, waveguide cavity (2) by internal dividing plate For close to the cavity of ring flange side.
- A kind of 3. efficient, low-loss broadband waveguide-microstrip transitions device according to claim 1 or 2, it is characterised in that： The tail feedback ladder (1) is structure as a whole, including stepped portion, cross recess elastic interface (4), coupling part；Stepped portion One face is step surface, is arranged on by coupling part on waveguide cavity (2) inwall；Cross recess elastic interface (4) is cylindrical, and one End processing cross recess, the other end are connected to stepped portion side, and cross recess elastic interface (4) is inserted from the dividing plate side of housing (3) Enter in dividing plate central through hole, be connected with the contact pin (5) of the glass insulator (6) of dividing plate opposite side.
- A kind of 4. efficient, low-loss broadband waveguide-microstrip transitions device according to claim 1 or 2, it is characterised in that： The cross recess elastic interface (4) is elastic construction, and material is beryllium-bronze.
- A kind of 5. efficient, low-loss broadband waveguide-microstrip transitions device according to claim 3, it is characterised in that：It is described Electrical property simulation result during tail feedback ladder (1) emulates in 3 D electromagnetic field meets：In the scope that frequency is 26GHz~40GHz It is interior, return loss≤- 20dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566658.2A CN107689472A (en) | 2017-07-12 | 2017-07-12 | A kind of efficient, low-loss broadband waveguide microstrip transitions device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710566658.2A CN107689472A (en) | 2017-07-12 | 2017-07-12 | A kind of efficient, low-loss broadband waveguide microstrip transitions device |
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| CN107689472A true CN107689472A (en) | 2018-02-13 |
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| CN201710566658.2A Pending CN107689472A (en) | 2017-07-12 | 2017-07-12 | A kind of efficient, low-loss broadband waveguide microstrip transitions device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449551A (en) * | 2018-12-03 | 2019-03-08 | 北京遥感设备研究所 | A kind of K-band Waveguide-microbelt transformational structure tunable based on slot-coupled |
| CN111370837A (en) * | 2020-03-26 | 2020-07-03 | 北京遥测技术研究所 | Welding device and method suitable for feedback type waveguide coaxial conversion structure |
| CN111799537A (en) * | 2020-06-29 | 2020-10-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Millimeter wave high-power ultra-wideband waveguide coupling device |
| CN113937448A (en) * | 2021-09-18 | 2022-01-14 | 中国电子科技集团公司第十三研究所 | Wave bead waveguide conversion device directly interconnected with wave beads |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332132Y (en) * | 2009-01-07 | 2009-10-21 | 南京恒电电子有限公司 | Microstrip wave guide adapter |
| CN103337680A (en) * | 2013-06-19 | 2013-10-02 | 合肥市半山阁电子科技有限公司 | SMA coaxial load with resistor |
| CN205621837U (en) * | 2015-12-31 | 2016-10-05 | 昆山市双桥铜业有限公司 | Coaxial converter of waveguide |
-
2017
- 2017-07-12 CN CN201710566658.2A patent/CN107689472A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332132Y (en) * | 2009-01-07 | 2009-10-21 | 南京恒电电子有限公司 | Microstrip wave guide adapter |
| CN103337680A (en) * | 2013-06-19 | 2013-10-02 | 合肥市半山阁电子科技有限公司 | SMA coaxial load with resistor |
| CN205621837U (en) * | 2015-12-31 | 2016-10-05 | 昆山市双桥铜业有限公司 | Coaxial converter of waveguide |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449551A (en) * | 2018-12-03 | 2019-03-08 | 北京遥感设备研究所 | A kind of K-band Waveguide-microbelt transformational structure tunable based on slot-coupled |
| CN111370837A (en) * | 2020-03-26 | 2020-07-03 | 北京遥测技术研究所 | Welding device and method suitable for feedback type waveguide coaxial conversion structure |
| CN111370837B (en) * | 2020-03-26 | 2021-10-01 | 北京遥测技术研究所 | Welding device and method suitable for feedback type waveguide coaxial conversion structure |
| CN111799537A (en) * | 2020-06-29 | 2020-10-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Millimeter wave high-power ultra-wideband waveguide coupling device |
| CN113937448A (en) * | 2021-09-18 | 2022-01-14 | 中国电子科技集团公司第十三研究所 | Wave bead waveguide conversion device directly interconnected with wave beads |
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Application publication date: 20180213 |