CN201708234U - Encapsulating structure of microwave isolator - Google Patents
Encapsulating structure of microwave isolator Download PDFInfo
- Publication number
- CN201708234U CN201708234U CN2010202050962U CN201020205096U CN201708234U CN 201708234 U CN201708234 U CN 201708234U CN 2010202050962 U CN2010202050962 U CN 2010202050962U CN 201020205096 U CN201020205096 U CN 201020205096U CN 201708234 U CN201708234 U CN 201708234U
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- China
- Prior art keywords
- pcb
- printed circuit
- circuit board
- pin
- isolator
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Abstract
The utility model provides an encapsulating structure of a microwave isolator. The encapsulating structure comprises a printed circuit board (PCB) and a housing positioned on the PCB, wherein the PCB is provided with an extension pin used for mounting an input/output port of a surface-mounted device; the edge of the extension pin of the PCB adopts a conductive electroplating structure which conducts the top layer and the bottom layer of the PCB; a plurality of open slots are formed on the housing; and a central conductor pin is led from each open slot, and is welded on the extension pin of the PCB. Through the adoption of a firm and reliable structure, the reliable electrical connection is achieved between an isolator/circulator mounted on a system board and a signal transmission line on the system board, pins of contacts between the isolator/circulator and the transmission line are more reliable, and the real surface mounting and the complete automated operation are achieved.
Description
Technical field
The utility model relates to a kind of encapsulating structure of microwave isolator.
Background technology
Ferrite isolator/circulator has a very wide range of applications in microwave regime.Though but the reliability of design and function and consistency are verified; But from be convenient to produce, the angle of installation and follow-up automation, the device architecture and the contact that are used for this ferrite isolator/circulator is connected with signal transmssion line are proved existing problems.Is there which problem to exist actually? the structure that has shown traditional SMD isolator/circulator among Fig. 1 a, 1b and Fig. 2 a, the 2b.
Shown in Fig. 1 a, the 1b is a kind of application structure that typically has the isolator/circulator of the characteristic of being electrically connected, employed surface-mount type technology in industry standard, because the coplanarity of center conductor pin opposite shell substrate is relatively poor, therefore can make production process inconvenience, production efficiency reduces; And center conductor pin 1 can produce flexural deformation and displacement in this device transportation, causes aborning, and the I/O pin of device just can not be positioned well.
Structure shown in Fig. 2 a, the 2b is a kind of alternative structure of Fig. 1 a, 1b, use a strutting piece 2 to fix the position of center conductor pin 1, and insulating material insulation is arranged between center conductor pin 1 and strutting piece 2, can stable center conductor pins 1, make it not have bigger rocking.Yet because strutting piece 2, center conductor pin 1 are different with the precision of insulator, the coplanarity of device might be subjected to influencing in various degree, but also can increase the material cost of device.
Structure shown in Fig. 3 a, the 3b also is a kind of alternative structure of Fig. 1 a, 1b, and its structure can be improved the coplanarity of center conductor pin 1 with respect to envelope substrate.But because power signal can only flow to the bottom conductor pad from through hole top conductor pad, the maximum power that therefore is applied to isolator can be subjected to the restriction of through hole power upper limit, and the through hole power upper limit is more much smaller than normal isolator/circulator power upper limit.In addition, the center conductor pin pad of SMT device can not identify the accurate position of pad sometimes by the autoscanner of equation of light identification pad in printed circuit board (PCB).
Therefore, make isolator/circulator have firm structure and real surface mount design, seem extremely important.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, a kind of encapsulating structure of microwave isolator is provided, its strong and reliable structure can make between the isolator/circulator that is installed on the system board and the signal transmssion line on the system board and realize being electrically connected reliably.
The purpose of this utility model is achieved through the following technical solutions:
The encapsulating structure of microwave isolator, comprise printed circuit board (PCB) and the shell that is positioned on the printed circuit board (PCB), characteristics are: described printed circuit board (PCB) is provided with the extension pin that is used for the surface mount device input/output end port, the edge that described printed circuit board (PCB) extends pin is the conductive plated structure, and its conductive plated structure is conducted the top layer and the bottom of printed circuit board (PCB); Described shell is provided with a plurality of open slots, and each open slot is drawn a center conductor pin respectively, and the center conductor pin of drawing from open slot is welded on the extension pin of printed circuit board (PCB).
Further, the encapsulating structure of above-mentioned microwave isolator, wherein, described shell is provided with 3 open slots.
Further, the encapsulating structure of above-mentioned microwave isolator, wherein, described printed circuit board (PCB) is at least double sided board.
Again further, the encapsulating structure of above-mentioned microwave isolator, wherein, the material of described shell is a permeability magnetic material.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
1. printed circuit board (PCB) extends the I/O pin, the extension pin is made can be by the shape of the automatic identification of outward appearance detector, extend between pin and the ground plane and realize electrical separation, thereby automatic placement machine can pick out input and output port by the light contrast at an easy rate;
2. extend pin and adopt conductive edge to electroplate, conductive edge is electroplated and high-power signal directly can be transferred to bottom from the top layer of printed circuit board (PCB);
3. printed circuit board (PCB) can be used for the high accuracy manufacturing, and can provide good coplanarity, also adopted conductive plated owing to extend pin edge, so the power delivery of printed circuit board (PCB) from top layer to bottom relies on the printed circuit board (PCB) of through hole power delivery bigger than tradition.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1 a: a kind of structural representation of isolator in the prior art;
Fig. 1 b: the local enlarged diagram of Fig. 1 a;
Fig. 2 a: the structural representation of another kind of isolator in the prior art;
Fig. 2 b: the local enlarged diagram of Fig. 2 a;
Fig. 3 a: the structural representation of another isolator in the prior art;
Fig. 3 b: the local enlarged diagram of Fig. 3 a;
Fig. 4 a: the structural representation of the utility model isolator;
Fig. 4 b: the local enlarged diagram of Fig. 4 a.
The implication of each Reference numeral among the figure:
1-center conductor pin, the 2-strutting piece, 3-extends pin,
Embodiment
Design a kind of encapsulating structure of microwave isolator, make the pin of contact between isolator/circulator and the transmission line more reliable, and realize real surface mount, the full automation operation.The PCB design that is adopted in the utility model makes the coplanarity between center conductor pin and the ground plane have more reliability than any method in the prior art.
Shown in Fig. 4 a, 4b, the encapsulating structure of microwave isolator, comprise printed circuit board (PCB) and the shell that is positioned on the printed circuit board (PCB), the material of shell is a permeability magnetic material, printed circuit board (PCB) is at least double sided board, printed circuit board (PCB) is provided with the extension pin 3 that is used for the surface mount device input/output end port, and the edge that printed circuit board (PCB) extends pin is the conductive plated structure, and the top layer and the bottom that adopt conductive edge to electroplate printed circuit board (PCB) are conducted; Shell is provided with a plurality of open slots, is generally 3 open slots, and each open slot is drawn a center conductor pin 1 respectively, and the center conductor pin 1 of drawing from open slot is welded on the extension pin of printed circuit board (PCB).
Printed circuit board (PCB) extends the I/O pin, the extension pin is made can be by the shape of the automatic identification of outward appearance detector, extending pin all uses conductive edge to electroplate, extend between pin and the ground plane and realize electrical separation, thereby automatic placement machine can pick out input and output port by the light contrast at an easy rate.
Conductive edge is electroplated and high-power signal directly can be transferred to bottom from the top layer of printed circuit board (PCB), yet it is but also unreliable to transmit powerful method with through hole.
Printed circuit board (PCB) can be used for the high accuracy manufacturing, and good coplanarity can be provided.Also adopted conductive plated owing to extend pin edge, so the power delivery of printed circuit board (PCB) from top layer to bottom relies on the printed circuit board (PCB) of through hole power delivery bigger than tradition.A shell of being made by permeability magnetic material is installed on the printed circuit board (PCB) is used for electrical ground, a plurality of open slots are arranged, each open slot can be drawn a center conductor pin.On printed circuit board (PCB), with magnetic conductive shell, a load or attenuator are installed, realize the function of isolator.
Input/output end port in the device is positioned on the extension pin of printed circuit board (PCB).Because these ground planes that extend pins and printed circuit board (PCB) separate fully, so any traditional appearance detector recognition means at an easy rate.
What need understand is: the above only is a preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not deviate from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the encapsulating structure of microwave isolator, comprise printed circuit board (PCB) and the shell that is positioned on the printed circuit board (PCB), it is characterized in that: described printed circuit board (PCB) is provided with the extension pin that is used for the surface mount device input/output end port, the edge that described printed circuit board (PCB) extends pin is the conductive plated structure, and its conductive plated structure is conducted the top layer and the bottom of printed circuit board (PCB); Described shell is provided with a plurality of open slots, and each open slot is drawn a center conductor pin respectively, and the center conductor pin of drawing from open slot is welded on the extension pin of printed circuit board (PCB).
2. the encapsulating structure of microwave isolator according to claim 1, it is characterized in that: described shell is provided with 3 open slots.
3. the encapsulating structure of microwave isolator according to claim 1, it is characterized in that: described printed circuit board (PCB) is at least double sided board.
4. the encapsulating structure of microwave isolator according to claim 1, it is characterized in that: the material of described shell is a permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202050962U CN201708234U (en) | 2010-05-27 | 2010-05-27 | Encapsulating structure of microwave isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202050962U CN201708234U (en) | 2010-05-27 | 2010-05-27 | Encapsulating structure of microwave isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708234U true CN201708234U (en) | 2011-01-12 |
Family
ID=43445388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202050962U Expired - Fee Related CN201708234U (en) | 2010-05-27 | 2010-05-27 | Encapsulating structure of microwave isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708234U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958444A (en) * | 2010-05-27 | 2011-01-26 | 世达普(苏州)通信设备有限公司 | Packaging structure of microwave isolator |
| CN102800911A (en) * | 2012-08-09 | 2012-11-28 | 南京广顺微波技术有限公司 | Cavity used for surface-mounted radio frequency isolator and circulator |
| CN103107396A (en) * | 2011-11-09 | 2013-05-15 | 苏州工业园区凯艺精密科技有限公司 | Cavity body structure of microwave isolator |
| CN109193090A (en) * | 2018-09-05 | 2019-01-11 | 苏州市浩海精密机械有限公司 | A kind of microwave isolator shell structure |
-
2010
- 2010-05-27 CN CN2010202050962U patent/CN201708234U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958444A (en) * | 2010-05-27 | 2011-01-26 | 世达普(苏州)通信设备有限公司 | Packaging structure of microwave isolator |
| CN103107396A (en) * | 2011-11-09 | 2013-05-15 | 苏州工业园区凯艺精密科技有限公司 | Cavity body structure of microwave isolator |
| CN102800911A (en) * | 2012-08-09 | 2012-11-28 | 南京广顺微波技术有限公司 | Cavity used for surface-mounted radio frequency isolator and circulator |
| CN109193090A (en) * | 2018-09-05 | 2019-01-11 | 苏州市浩海精密机械有限公司 | A kind of microwave isolator shell structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20180527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |