CN106532219B - A kind of wide-band microwave strip line large-power directional coupler - Google Patents
A kind of wide-band microwave strip line large-power directional coupler Download PDFInfo
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- CN106532219B CN106532219B CN201611075421.6A CN201611075421A CN106532219B CN 106532219 B CN106532219 B CN 106532219B CN 201611075421 A CN201611075421 A CN 201611075421A CN 106532219 B CN106532219 B CN 106532219B
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- Prior art keywords
- directional coupler
- strip line
- wide
- band
- flange form
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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
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
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Abstract
The invention discloses a kind of wide-band microwave strip line large-power directional couplers, are encapsulated directional coupler using included flange form isolator, and strip line needle is arranged on included flange form isolator；Described included flange form insulating microwave subband line one end is welded on the circuit wafer of directional coupler by tin-lead, and the included flange form isolator is mounted in upper and lower cover plates by flange.Compared with prior art, the positive effect of the present invention is: the present invention is in such a way that included flange form insulator is in conjunction with strip line large-power directional coupler, the small-sized encapsulated for efficiently solving the problems, such as high-frequency-band broadband large-power directional coupler is a kind of supplement of the packing forms of existing directional coupler；The microwave high power directional coupler which is realized has the characteristics that high-frequency is integrated with Microwave Hybrid is easy to.
Description
Technical field
The invention belongs to electronic technology fields, and in particular to a kind of wide-band microwave strip line large-power directional coupler.
Background technique
Wide-band microwave strip line large-power directional coupler requires very high, traditional packing forms to the matching of assembly
Mainly have: first, a directional coupler is packaged into using SMA/TNC/N band wire terminal；Second, using laminated multi-layer circuit skill
Art is packaged into Surface Mount directional coupler；Third is packaged into PIN encapsulation directional coupler using copper strips lead-out mode.Three of the above
Packing forms are the predominant package forms of microwave frequency band wideband high-power directional coupler, these three packaged types respectively have excellent lack
Point, as shown in the table:
One conventional package form electric bridge comparison of table
Therefore, existing packaging method is unable to satisfy the miniaturization, low of high band (12GHz or more) microwave directive coupler
The requirement of insertion loss and high power capacity.The miniaturization in high-power, broadband, high band microwave directive coupler urgently needs one
The new packing forms of kind.
Summary of the invention
In order to overcome the disadvantages mentioned above of the prior art, the present invention provides a kind of wide-band microwave strip line large-power directional couplings
Clutch, it is intended to solve the problems, such as miniaturization, low insertion loss and the high power capacity of high band (12GHz or more) microwave bridge,
High-power electric bridge is provided for high density Microwave Hybrid is integrated.
The technical solution adopted by the present invention to solve the technical problems is: a kind of wide-band microwave strip line large-power directional coupling
Directional coupler is encapsulated using included flange form isolator, is set on included flange form isolator by clutch
Set strip line needle；Described included flange form insulating microwave subband line one end is welded on the circuit wafer of directional coupler by tin-lead
On, the included flange form isolator is mounted in upper and lower cover plates by flange.
Compared with prior art, the positive effect of the present invention is: the present invention is using included flange form insulator and strip line
The mode that large-power directional coupler combines, the small-sized encapsulated for efficiently solving high-frequency-band broadband large-power directional coupler are asked
Topic, is a kind of supplement of the packing forms of existing directional coupler；The microwave high power directional coupler which is realized has
High-frequency and it is easy to the features such as Microwave Hybrid is integrated.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is the main view of directional coupler of the invention；
Fig. 2 is the side view of directional coupler of the invention；
Fig. 3 is the main view of included flange form isolator of the invention；
Fig. 4 is the rear view of included flange form isolator of the invention.
Specific embodiment
A kind of wide-band microwave strip line large-power directional coupler, as depicted in figs. 1 and 2, comprising: cover board 1, included flange
Formula insulator 2, insulator strip line needle 3, sunk screw 4 etc., in which:
The upper and lower two sides of directional coupler are arranged in cover board 1, are made of metal material, generally duralumin, copper or other
Rigid conductive metal material.The main function of cover board is: first, directional coupler and the encapsulation of included flange form insulator need；
Second, directional coupler circuit wafer material is soft, can prevent from using and assembling damage using hard metal cover board, improves reliable
Property.
Insulator strip line needle 3 is set on the insulator both sides of included flange form insulator 2, insulator strip line needle 3 is adopted
With flat structure, this structure is with existing without flange and needle is that columned insulator is compared, and there are following advantages: the
One, included flange, which can replace external connector bring directional coupler volume big and can not carry out micro-group dress, to be integrated, and is used
Without flange form insulator, requires to increase insulator assembly space in this way and assembly reliability and ground connection receive influence；Second,
Insulator can be pressed directly using strip line needle into strip line directional coupler, and the width 0.5mm of needle (can determine as needed
System), thickness 0.2mm gives coupler upper and lower circuit piece bring gap very little in bonding processes, on whole microwave property influence compared with
It is small, if be easy to causeing the gap between circuit wafer excessive during the pressing process using cylindric needle and circuit wafer being caused to press
It causes injury, influences performance.
Insulator strip line is upper and lower cover plates pressing, and ground connection can be improved and improve three layers of circuit wafer of strip line and combine closely
's.The position of screw hole and the performance that how much can all influence entire directional coupler.In present invention, it is desirable to being walked in circuit wafer circuit
This pressing function is realized in the assembly of sunk screw 4 that density of setting is moderate near line.
It is wide to high reliability, small-sized easy of integrationization, high combined coefficient based on high-frequency-band broadband microwave power amplifier component
Demand with electric bridge proposes a kind of packing forms of novel high-power electric bridge of microwave broadband, using carrying flanged radio frequency
Band line insulator (ohm insulator, both ends are sheet metal, are the insulator of round needle different from present both sides), will be exhausted
Edge subband line one end is welded on the circuit of electric bridge by tin-lead, then is mounted in the upper and lower cover plates of electric bridge by flange.The party
Formula realizes the novel small-sized encapsulated of electric bridge well, not only solves the problems, such as that high-frequency uses, and realize well
The hybrid integrated problem of electric bridge and microstrip line.
The present invention be with based on isolator (frequency range DC~22GHz, Insertion Loss be less than 0.2dB), design from
Band flange form isolator, the microwave property of the insulator are identical with conventional insulators.The included flange form that the present invention uses
Insulator, glass sintering part needle can be slightly determined according to standard insulator, and both sides micro-strip interconnects needle length, width and thickness
Design determines degree according to the design needs.
Electric bridge of the invention is to use strip lines configuration, the strip lines configuration of upper, middle and lower-ranking soft base material media implementation,
It uses strip lines configuration microwave transmission characteristic for TEM mode, filter with low insertion loss may be implemented；The dielectric of the soft base material of strip lines configuration is normal
Number is greater than microstrip structure, may be implemented to minimize.
The directional coupler for the new packaging form that the present invention designs is exhausted using included flange type micro-wave above-mentioned
Strip line coupler above-mentioned is packaged integrated, the final directional coupler for realizing strip line extraction by edge, should
Mode may be implemented high-frequency, miniaturization, large-power directional coupler, and insulator structure is conducive to the mixed of electric bridge and microstrip line
Intersection at.
Specific encapsulation process of the invention is as follows:
(1) need to customize corresponding included flange form radio frequency band line insulator according to encapsulation；
(2) it according to force fit plate above and below included flange form radio frequency band line insulator configuration design electric bridge, and processes；
(3) bridge circuit piece and included flange form radio frequency band line insulator welding portion are welded using a small amount of tin-lead
Then bridge circuit piece, pressing metal plate, included flange form radio frequency band line insulator are combined by (the fewer tin-lead the better) together
One entirety, becomes the electric bridge of a novel small-sized encapsulated.
Claims (7)
1. a kind of wide-band microwave strip line large-power directional coupler, it is characterised in that: using included flange form isolator
Directional coupler is encapsulated, strip line needle is set on included flange form isolator；Included flange form insulating microwave
Sub- strip line one end is welded on the circuit wafer of directional coupler by tin-lead, and the included flange form isolator passes through method
Orchid is mounted in upper and lower cover plates；The strip line needle uses flat structure；The strip line needle, which directly presses, enters directional couple
Device.
2. a kind of wide-band microwave strip line large-power directional coupler according to claim 1, it is characterised in that: the band
The width of shape line needle is 0.5mm, with a thickness of 0.2mm.
3. a kind of wide-band microwave strip line large-power directional coupler according to claim 1, it is characterised in that: described fixed
It is the strip lines configuration of upper, middle and lower-ranking soft base material media implementation to the circuit wafer of coupler.
4. a kind of wide-band microwave strip line large-power directional coupler according to claim 3, it is characterised in that: described
Upper, middle and lower-ranking soft base material medium strip lines configuration is formed by the close press fit arrangement of sunk screw.
5. a kind of wide-band microwave strip line large-power directional coupler according to claim 3, it is characterised in that: the band
The microwave transmission characteristic of shape cable architecture is TEM mode.
6. a kind of wide-band microwave strip line large-power directional coupler according to claim 3, it is characterised in that: described soft
The dielectric constant of substrate medium is greater than microstrip structure.
7. a kind of wide-band microwave strip line large-power directional coupler according to claim 1, it is characterised in that: it is described from
Band flange form isolator is ohm insulator, and both ends are sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075421.6A CN106532219B (en) | 2016-11-30 | 2016-11-30 | A kind of wide-band microwave strip line large-power directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075421.6A CN106532219B (en) | 2016-11-30 | 2016-11-30 | A kind of wide-band microwave strip line large-power directional coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106532219A CN106532219A (en) | 2017-03-22 |
| CN106532219B true CN106532219B (en) | 2019-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611075421.6A Active CN106532219B (en) | 2016-11-30 | 2016-11-30 | A kind of wide-band microwave strip line large-power directional coupler |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201307631Y (en) * | 2008-09-08 | 2009-09-09 | 合肥仪威贸易有限公司 | Stripline directional coupler |
| CN202058841U (en) * | 2011-04-07 | 2011-11-30 | 安徽海特微波通信有限公司 | Coupler with waterproof structure |
| JP2016134779A (en) * | 2015-01-20 | 2016-07-25 | 日立金属株式会社 | Directional coupler and module employing the same |
-
2016
- 2016-11-30 CN CN201611075421.6A patent/CN106532219B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201307631Y (en) * | 2008-09-08 | 2009-09-09 | 合肥仪威贸易有限公司 | Stripline directional coupler |
| CN202058841U (en) * | 2011-04-07 | 2011-11-30 | 安徽海特微波通信有限公司 | Coupler with waterproof structure |
| JP2016134779A (en) * | 2015-01-20 | 2016-07-25 | 日立金属株式会社 | Directional coupler and module employing the same |
Non-Patent Citations (1)
| Title |
|---|
| 特高频方法在GIS局部放电在线监测中的应用;罗颖婷;《轻工科技》;20151031(第10期);57-58，71 |
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| Publication number | Publication date |
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| CN106532219A (en) | 2017-03-22 |
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