CN209764969U - Voltage controlled oscillator VCO batch test platform - Google Patents
Voltage controlled oscillator VCO batch test platform Download PDFInfo
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- CN209764969U CN209764969U CN201920261256.6U CN201920261256U CN209764969U CN 209764969 U CN209764969 U CN 209764969U CN 201920261256 U CN201920261256 U CN 201920261256U CN 209764969 U CN209764969 U CN 209764969U
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Abstract
The utility model discloses a voltage controlled oscillator VCO batch test platform, which comprises an upper layer PCB board, a lower layer PCB board and a fixed metal plate which are sequentially stacked from bottom to top; more than one SMA connection group is welded on the lower layer PCB; more than one metal elastic sheet group is welded on the lower layer PCB, and one metal elastic sheet group is correspondingly and electrically connected with one SMA joint group; the upper layer PCB is provided with VCO (voltage controlled oscillator) placing areas corresponding to the metal elastic sheet groups one by one so that the placed VCO is in movable contact with the metal elastic sheet groups; the VCO placing area fixing device further comprises a fixing device which corresponds to the VCO placing areas one by one. The utility model discloses a thereby fixing device makes VCO and metal shell fragment group fully contact with VCO fixed, under the power-on condition, makes VCO's signal can pass through SMA joint output, need not to weld VCO's pin on transmission circuit, has characteristics such as cost is cheap, small, test method is simple, test quantity is steerable, test number and test time that can effectual reduction VCO, guarantees test data's accuracy, is fit for batch test.
Description
Technical Field
the utility model belongs to the technical field of voltage controlled oscillator VCO capability test, concretely relates to voltage controlled oscillator VCO tests platform in batches can the efficient test pressure controlled oscillator VCO's temperature, power, phase noise etc. very suitable batch test.
Background
The frequency source is the heart of a radar system and a communication system, and a voltage controlled oscillator VCO (voltage controlled oscillator) serving as a core component of the frequency source influences the performance of the whole system due to the power, phase noise and tuning characteristics of the frequency source, and the VCO has huge demand, so that the test of each index of the high-quality VCO is very important, and the accuracy and consistency of each index can be ensured even under the same environment. Therefore, the development of an efficient VCO test platform is necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems existing in the prior art, the present invention provides an efficient voltage controlled oscillator VCO batch test apparatus with two layers. The utility model discloses have characteristics such as cost is cheap, small, test method is simple, test quantity is steerable, can effectual reduction VCO's test number of times and test time, guarantee test data's accuracy.
The utility model discloses the technical scheme who adopts does:
a voltage controlled oscillator VCO batch test platform comprises an upper layer PCB, a lower layer PCB and a fixed metal plate which are sequentially stacked from bottom to top;
more than one SMA connection group is welded on the lower PCB;
More than one metal elastic sheet group is welded on the lower layer PCB, and one metal elastic sheet group is correspondingly and electrically connected with one SMA joint group;
The upper layer PCB is provided with VCO (voltage controlled oscillator) placing areas corresponding to the metal spring piece groups one by one so that the placed VCO is in movable contact with the metal spring piece groups;
The VCO batch test platform further comprises fixing devices which correspond to the VCO placing areas one to one and are used for fixing the VCOs.
On the basis of the technical scheme, one metal elastic sheet set is correspondingly and electrically connected with one SMA joint set through the leading-out microstrip line and the transmission circuit which are arranged on the surface of the lower layer PCB in sequence, and the metal elastic sheet set is welded with the leading-out microstrip line.
On the basis of the technical scheme, the SMA connector group comprises an RF signal SMA connector, a VCC signal SMA connector and a VT signal SMA connector;
The metal shrapnel group comprises three metal shrapnels which are respectively used for being movably and electrically connected with RF, VCC and VT pins of the VCO, and the three metal shrapnels are also electrically connected with the RF signal SMA connector, the VCC signal SMA connector and the VT signal SMA connector of the corresponding SMA connector group in a one-to-one correspondence manner.
When the RF, VCC and VT pins of the VCO are respectively contacted with the three metal elastic sheets of the metal elastic sheet group corresponding to the positions, the pins can be correspondingly and electrically connected with the RF signal SMA joint, the VCC signal SMA joint and the VT signal SMA joint of the SMA joint group one by one through leading out the microstrip line and the transmission circuit.
on the basis of the technical scheme, through holes are formed in the positions, corresponding to the metal elastic sheet groups, of the upper layer PCB one to form VCO placing areas.
On the basis of the technical scheme, the fixing device comprises a first fixing screw, a second fixing screw and a fixing pressing block;
The first fixing screw and the second fixing screw sequentially penetrate through the upper PCB, the lower PCB and the fixing metal plate to be fixed, and one end of the fixing pressing block is fixedly connected with the first fixing screw, and the other end of the fixing pressing block is movably connected with the second fixing screw to be used for pressing the VCO.
On the basis of the technical scheme, one end of the fixed pressing block is provided with a through hole for fixedly connecting the first fixing screw, and the other end of the fixed pressing block is provided with a through hole for movably connecting the second fixing screw and having an opening.
on the basis of the technical scheme, the fixed pressing block is arranged above the corresponding VCO placing area, and the fixed pressing block moves downwards along with the rotation of the first fixing screw or/and the second fixing screw to press the VCO.
Before placing the VCO, the initial state of the fixture is: the second fixing screw is not clamped in the via hole opening at the other end of the fixing pressing block; after the VCO is placed, the second fixing screw is clamped into the through hole opening at the other end of the fixing pressing block, the first fixing screw or/and the second fixing screw is/are rotated to apply pressure to the fixing pressing block, the VCO is further firmly fixed in the VCO placing area, and when the RF, VCC and VT pins of the VCO are respectively contacted with the three metal elastic sheets of the metal elastic sheet group corresponding to the position, the RF, VCC and VT pins of the VCO can be electrically connected with the RF signal SMA connector, the VCC signal SMA connector and the VT signal SMA connector of the corresponding SMA connector group in a one-to-one correspondence manner by leading out the microstrip line and the transmission circuit.
The fixing device facilitates replacing the VCO without completely rotating the first fixing screw and the second fixing screw out, and the VCO is firmly fixed in the VCO placing area by pressing the fixing pressing block through rotating the first fixing screw or/and the second fixing screw.
On the basis of the technical scheme, the voltage-controlled oscillator VCO batch test platform further comprises more than one binding post, and the upper ends of the binding posts are fixed sequentially through the fixed metal plate, the lower layer PCB and the upper layer PCB. The terminal has the effect in two aspects, firstly provides the support effect for test platform, and on the other hand conveniently stacks the PCB board, and this has played the key effect for two sets of test platform stack.
The utility model has the advantages that:
1. The utility model discloses simple structure, cost are lower, adopt the metal fixing plate structure to have that stability is good, sound construction, be convenient for installation and dismantlement's advantage.
2. The utility model discloses a fix voltage controlled oscillator VCO between upper PCB board and fixed briquetting, thereby make VCO's RF through rotatory first set screw or second set screw with voltage controlled oscillator VCO is fixed, VCC, the three metal shrapnels of the metal shrapnel group that VT pin and position correspond fully contact, can connect the RF signal SMA who organizes through drawing out microstrip line and transmission circuit and SMA, VCC signal SMA connects and VT signal SMA connects the one-to-one electricity and connects, thereby make VCO's signal can connect the output through SMA under the power-up condition, therefore it is very convenient to test.
3. The utility model discloses can adopt single layer construction, bilayer structure also can adopt multilayer structure, multilayer structure passes through the terminal and stacks test platform vertically together, has greatly reduced the volume, can increase VCO's test quantity again, greatly reduces voltage controlled oscillator's test number of times and test time, is particularly suitable for the test of VCO performance under the different temperatures (high temperature, normal atmospheric temperature, low temperature) circumstances, consequently is fit for the batch test, has extensive application market.
Drawings
Fig. 1 is a schematic top view of an embodiment of the present invention.
Fig. 2 is a schematic side view of an embodiment of the present invention.
Fig. 3 is a schematic bottom view of an embodiment of the present invention.
Fig. 4 is a schematic perspective view of an embodiment of the present invention (the terminal is not shown).
In the figure: 1-upper layer PCB board; 2-lower layer PCB board; 3-fixing the metal plate; 4-SMA joint; 6-metal shrapnel; 7-a binding post; 801-first set screw; 802-a second set screw; 9-fixing the pressing block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The key point of the utility model lies in that the RF, VCC and VT transmission circuit of VCO is output by the routing of PCB, the RF, VCC and VT pins of VCO are contacted with three metal spring pieces of metal spring piece group corresponding to the position respectively, the three metal spring pieces are welded with the RF, VCC and VT leading out microstrip lines respectively, the leading out microstrip lines are connected with the corresponding SMA connector group through the transmission circuit so as to be connected with the power line, the radio frequency cable and the like, for the convenience of test, the metal spring piece group is adopted, the metal spring piece group is welded on the RF, VCC and VT leading out microstrip lines, the VCO is directly pressed on the metal spring piece under the action of the fixed pressing block, so that the pins of VCO are fully contacted with the corresponding metal spring piece group to lead the transmission circuit to be connected, thus the pins of VCO do not need to be welded on the transmission circuit, the troublesome process of taking down the pins of VCO from the welding position is avoided, fast replacement testing of the VCO is greatly facilitated.
a or/and B described below represent: a or B, or a and B, i.e. three meanings: a alone, B alone, A and B.
Example (b):
as shown in fig. 1 to 4, the platform for batch testing of the VCO of the present embodiment includes an upper PCB 1, a lower PCB 2, and a fixed metal plate 3, which are sequentially stacked from top to bottom.
More than one SMA connector group is welded on the lower PCB 2, and the SMA connector group is used for externally connecting a radio frequency cable. The SMA connector group comprises three SMA connectors 4, namely an RF signal SMA connector, a VCC signal SMA connector and a VT signal SMA connector.
More than one metal spring sheet group is welded on the lower layer PCB board 2, and one metal spring sheet group is correspondingly and electrically connected with one SMA joint group through a leading-out microstrip line and a transmission circuit which are arranged on the surface of the lower layer PCB board 2. In this embodiment, the metal spring sheet set is located between the upper PCB board 1 and the lower PCB board 2. The metal elastic sheet set comprises three metal elastic sheets 6 which are respectively used for being movably and electrically connected with RF (radio frequency) pins, VCC (voltage converter) pins and VT (voltage VT) pins of the VCO, and are also correspondingly and electrically connected with RF (radio frequency) signal SMA joints, VCC signal SMA joints and VT signal SMA joints of the corresponding SMA joint set one by one through leading out microstrip lines and a transmission circuit.
The positions of the upper layer PCB board 1 corresponding to the metal elastic sheet groups one by one are provided with VCO placing areas so that the placed VCOs are in movable contact with the metal elastic sheet groups, and when the RF pins, the VCC pins and the VT pins of the VCOs are respectively in contact with the three metal elastic sheets 6 of the metal elastic sheet groups corresponding to the positions, the pins can be electrically connected with the RF signal SMA joints, the VCC signal SMA joints and the VT signal SMA joints of the SMA joint groups in one-to-one correspondence by leading out microstrip lines and transmission circuits.
the VCO placed in the VCO placing area is fixed through a fixing device, and the fixing device is provided with more than one VCO and corresponds to the VCO placing area one by one.
Fixing device includes first set screw 801, second set screw 802 and fixed briquetting 9, first set screw 801 and second set screw 802 all pass upper PCB board 1 in proper order, lower floor's PCB board 2 and fixed metal sheet 3 fix, the one end of fixed briquetting 9 is equipped with the via hole that is used for the first set screw 801 of fixed connection, the other end of fixed briquetting 9 is equipped with and is used for swing joint second set screw 802 and has the open-ended via hole, fixed briquetting 9 is located the VCO that corresponds and is placed regional top and be used for compressing tightly the VCO. Before placing the VCO, the initial state of the fixture is: the second fixing screw 802 is not clamped in the via hole opening at the other end of the fixing pressing block 9; after the VCO is placed, the second fixing screw 802 is clamped into the via hole opening at the other end of the fixing pressing block 9, the first fixing screw 801 or/and the second fixing screw 802 is/are rotated to apply pressure to the fixing pressing block 9, so that the VCO is firmly fixed in the VCO placing area, and when pins RF, VCC and VT of the VCO are respectively contacted with the three metal elastic sheets 6 of the metal elastic sheet group corresponding to the positions, the pins RF, VCC and VT can be electrically connected with the RF signal SMA joints, VCC signal SMA joints and VT signal SMA joints of the corresponding SMA joint group in a one-to-one correspondence manner by leading out microstrip lines and transmission circuits.
The above-described fixing device facilitates replacement of the VCO without completely rotating the first fixing screw 801 and the second fixing screw 802 out, and firmly fixes the VCO in the VCO placement area by pressing the fixing press block 9 by rotating the first fixing screw 801 or/and the second fixing screw 802.
In this embodiment, a voltage controlled oscillator VCO tests platform in batches still includes more than one terminal 7, and the upper end of terminal 7 loops through fixed metal sheet 3, lower floor's PCB board 2 and upper PCB board 1 and fixes, and terminal 7 has the effect in two aspects, firstly provides the support effect for test platform, and on the other hand conveniently stacks the PCB board, and this has stacked the key effect for two sets of test platform.
The utility model discloses simple structure, cost are lower, adopt the metal fixing plate structure to have that stability is good, sound construction, be convenient for installation and dismantlement's advantage.
the utility model discloses a fix voltage controlled oscillator VCO between upper PCB board and fixed briquetting, thereby make VCO's RF through rotatory first set screw or second set screw with voltage controlled oscillator VCO is fixed, VCC, the three metal shrapnels of the metal shrapnel group that VT pin and position correspond fully contact, can connect the RF signal SMA who organizes through drawing out microstrip line and transmission circuit and SMA, VCC signal SMA connects and VT signal SMA connects the one-to-one electricity and connects, thereby make VCO's signal can connect the output through SMA under the power-up condition, therefore it is very convenient to test.
The utility model discloses can adopt single layer construction, bilayer structure also can adopt multilayer structure, multilayer structure passes through the terminal and stacks test platform vertically together, has greatly reduced the volume, can increase VCO's test quantity again, greatly reduces voltage controlled oscillator's test number of times and test time, is particularly suitable for the test of VCO performance under the different temperatures (high temperature, normal atmospheric temperature, low temperature) circumstances, consequently is fit for the batch test, has extensive application market.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (8)
1. The utility model provides a voltage controlled oscillator VCO batch test platform which characterized in that: comprises an upper layer PCB (1), a lower layer PCB (2) and a fixed metal plate (3) which are sequentially stacked from bottom to top;
more than one SMA connection group is welded on the lower PCB;
More than one metal elastic sheet group is welded on the lower layer PCB, and one metal elastic sheet group is correspondingly and electrically connected with one SMA joint group;
The upper layer PCB is provided with VCO (voltage controlled oscillator) placing areas corresponding to the metal spring piece groups one by one so that the placed VCO is in movable contact with the metal spring piece groups;
The VCO batch test platform further comprises fixing devices which correspond to the VCO placing areas one to one and are used for fixing the VCOs.
2. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 1, wherein: and the metal elastic sheet group is correspondingly and electrically connected with the SMA joint group through the leading-out microstrip line and the transmission circuit which are arranged on the surface of the lower layer PCB in sequence, and the metal elastic sheet group is welded with the leading-out microstrip line.
3. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 1, wherein: the SMA joint group comprises an RF signal SMA joint, a VCC signal SMA joint and a VT signal SMA joint;
The metal elastic sheet set comprises three metal elastic sheets (6) which are respectively used for being movably and electrically connected with RF (radio frequency) pins, VCC (voltage converter) pins and VT (voltage VT) pins of the VCO, and the three metal elastic sheets are also electrically connected with the RF signal SMA joints, the VCC signal SMA joints and the VT signal SMA joints of the corresponding SMA joint set in a one-to-one corresponding mode.
4. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 1, wherein: and through holes are formed in the positions, corresponding to the metal elastic sheet groups, of the upper layer PCB one to form VCO placing areas.
5. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 1, wherein: the fixing device comprises a first fixing screw (801), a second fixing screw (802) and a fixing pressing block (9);
The first fixing screw and the second fixing screw sequentially penetrate through the upper PCB, the lower PCB and the fixing metal plate to be fixed, and one end of the fixing pressing block is fixedly connected with the first fixing screw, and the other end of the fixing pressing block is movably connected with the second fixing screw to be used for pressing the VCO.
6. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 5, wherein: one end of the fixed pressing block is provided with a via hole for fixedly connecting the first fixing screw, and the other end of the fixed pressing block is provided with a via hole for movably connecting the second fixing screw and having an opening.
7. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 5, wherein: the fixed pressing block is arranged above the corresponding VCO placing area, and the fixed pressing block moves downwards along with the rotation of the first fixing screw or/and the second fixing screw to press the VCO.
8. The Voltage Controlled Oscillator (VCO) batch test platform according to claim 1, wherein: the VCO batch test platform further comprises more than one binding post (7), and the upper ends of the binding posts are fixed sequentially through a fixed metal plate, a lower layer PCB and an upper layer PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261256.6U CN209764969U (en) | 2019-02-28 | 2019-02-28 | Voltage controlled oscillator VCO batch test platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261256.6U CN209764969U (en) | 2019-02-28 | 2019-02-28 | Voltage controlled oscillator VCO batch test platform |
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| CN209764969U true CN209764969U (en) | 2019-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987336A (en) * | 2019-12-23 | 2020-04-10 | 北京无线电计量测试研究所 | Device and method for realizing electrical performance monitoring under vibration test of SMD5032 crystal oscillator |
-
2019
- 2019-02-28 CN CN201920261256.6U patent/CN209764969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987336A (en) * | 2019-12-23 | 2020-04-10 | 北京无线电计量测试研究所 | Device and method for realizing electrical performance monitoring under vibration test of SMD5032 crystal oscillator |
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