CN203798930U - Radio frequency testing circuit of LGA module - Google Patents
Radio frequency testing circuit of LGA module Download PDFInfo
- Publication number
- CN203798930U CN203798930U CN201420170462.3U CN201420170462U CN203798930U CN 203798930 U CN203798930 U CN 203798930U CN 201420170462 U CN201420170462 U CN 201420170462U CN 203798930 U CN203798930 U CN 203798930U
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- testing
- frequency testing
- lga module
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 7
- 241000931526 Acer campestre Species 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model provides a radio frequency testing circuit of an LGA module. A radio frequency testing feed point is arranged at one surface, having a welding plate, of the LGA module and is directly contacted with a radio frequency probe in a radio frequency head from an instrument during testing. A loop of copper rings are distributed by using the radio frequency testing feed point as the center and are contacted with the annular outer wall of the radio frequency head from the instrument during testing. The whole testing system is grounded; and a plurality of ground holes connected with the main ground are formed in the copper rings, thereby improving the ground performance during radio frequency testing and reducing earth impedance of the radio frequency testing circuit. The provided radio frequency testing circuit has the following beneficial effects: the structure is simple; there is no need to reserve a position for a radio frequency seat at the circuit board specially, thereby further reducing the area of the LGA module; the radio frequency seat is removed, thereby saving the board area and lowering the production cost; the copper rings are arranged, thereby ensuring the good ground characteristic during the radio frequency testing and guaranteeing accuracy of the testing result during the research and development as well as the production process.
Description
Technical field
The utility model relates to a kind of radio frequency testing circuit, relates in particular to a kind of radio frequency testing circuit of LGA module.
Background technology
In the radio frequency testing of current LGA module, a kind of solution is to adopt coaxial connector special, radio frequency seat is placed on circuit board, radio-frequency maser is connected on instrument by concentric cable, on circuit board, place radio frequency seat, need to increase extra plate area, increase device and circuit board cost, and run counter to the trend that LGA module is constantly dwindled.Another kind is to adopt rf probe directly to contact with test feedback point, on circuit board, without placing radio frequency seat, only reserved circuit test feedback point, only has test feedback point or has indivedual earth points around on circuit board, while contacting with rf probe, ground connection poor performance, causes test error.
Utility model content
The utility model object is to solve in the radio frequency testing of LGA module at present, and ground connection poor performance while contacting with rf probe because of radio frequency testing feedback point causes the deficiency of test error and the radio frequency testing circuit of a kind of novel LGA module that provides.
The utility model is achieved through the following technical solutions: the one side that has pad in LGA module is provided with a radio frequency testing feedback point, during described radio frequency testing feedback point test, directly contact with the rf probe in the radio-frequency maser picking out from instrument, centered by described radio frequency testing feedback point, around cloth one encloses copper ring, during described copper ring test, contact with the annular outer wall of the radio-frequency maser picking out from instrument, make whole test macro altogether, and on described copper ring, increase the hole, ground on the main ground of some connections, ground connection performance during with lifting radio frequency testing, reduce the earth impedance of radio frequency testing circuit.
Further, described copper ring internal diameter and external diameter size are determined according to the concrete testing radio frequency head outer wall specification of using.
The beneficial effects of the utility model are: simple in structure, on circuit board, needn't reserve specially the position of radio frequency seat, and can further dwindle the area of LGA module; Saved radio frequency seat, saved plate area, saved production cost; Increased copper ring, while guaranteeing radio frequency testing, there is good grounding characteristics, no matter be, in research and development or production run, can guarantee that test result is accurate.
Accompanying drawing explanation
Fig. 1 is the radio frequency testing electrical block diagram of the utility model LGA module;
Fig. 2 is that the radio frequency testing circuit of the utility model LGA module can simplified example structural representation.
Reference numeral: 1, radio frequency testing feedback point; 2, copper ring; 3, hole.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described further:
Embodiment 1:
As shown in Figure 1: a kind of radio frequency testing circuit of LGA module, the one side that has pad in LGA module is provided with a radio frequency testing feedback point 1, during 1 test of described radio frequency testing feedback point, directly contact with the rf probe of the radio-frequency maser picking out from instrument, centered by described radio frequency testing feedback point, around cloth one encloses copper ring 2, during described copper ring 2 test, contact with the annular outer wall of the radio-frequency maser picking out from instrument, whole test macro altogether, and on described copper ring 2, increase the hole, ground 3 on the main ground of some connections, ground connection performance during with lifting radio frequency testing, reduce radio frequency testing circuit earth impedance.
Preferably, described copper ring 2 internal diameters and external diameter size are determined according to the concrete testing radio frequency head outer wall specification of using.
Embodiment 2:
As shown in Figure 2: in order to facilitate the wiring of pcb board, copper ring 2 can retain some breach as required, as long as keep relatively complete annulus, can reach equally the object that promotes ground connection performance; Or when fabric swatch consciously by the ground pad on the position of copper ring 2 and pcb board top layer near and be connected, the contact area of increase copper ring 2, makes ground connection performance better.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection domain of claim of the present utility model.In addition,, although used some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (2)
1. the radio frequency testing circuit of a LGA module, it is characterized in that: the one side that has pad in LGA module is provided with a radio frequency testing feedback point, during described radio frequency testing feedback point test, directly contact with the rf probe in the radio-frequency maser picking out from instrument, centered by described radio frequency testing feedback point, around cloth one encloses copper ring, during described copper ring test, contact with the annular outer wall of the radio-frequency maser picking out from instrument, make whole test macro altogether, and on described copper ring, increase the hole, ground on the main ground of some connections, ground connection performance during with lifting radio frequency testing, reduce the earth impedance of radio frequency testing circuit.
2. the radio frequency testing circuit of LGA module according to claim 1, is characterized in that: described copper ring internal diameter and external diameter size are determined according to the concrete testing radio frequency head outer wall specification of using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170462.3U CN203798930U (en) | 2014-04-10 | 2014-04-10 | Radio frequency testing circuit of LGA module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170462.3U CN203798930U (en) | 2014-04-10 | 2014-04-10 | Radio frequency testing circuit of LGA module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798930U true CN203798930U (en) | 2014-08-27 |
Family
ID=51381134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420170462.3U Expired - Fee Related CN203798930U (en) | 2014-04-10 | 2014-04-10 | Radio frequency testing circuit of LGA module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425061A (en) * | 2015-11-04 | 2016-03-23 | 上海斐讯数据通信技术有限公司 | Radio frequency test method, module and equipment |
| CN110213881A (en) * | 2019-05-28 | 2019-09-06 | 四川九洲电器集团有限责任公司 | A kind of printed circuit board and test fixture |
-
2014
- 2014-04-10 CN CN201420170462.3U patent/CN203798930U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425061A (en) * | 2015-11-04 | 2016-03-23 | 上海斐讯数据通信技术有限公司 | Radio frequency test method, module and equipment |
| CN110213881A (en) * | 2019-05-28 | 2019-09-06 | 四川九洲电器集团有限责任公司 | A kind of printed circuit board and test fixture |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 |