CN205429127U - Intermodulation attenuator is hanged down to high stability - Google Patents
Intermodulation attenuator is hanged down to high stability Download PDFInfo
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- CN205429127U CN205429127U CN201620174833.4U CN201620174833U CN205429127U CN 205429127 U CN205429127 U CN 205429127U CN 201620174833 U CN201620174833 U CN 201620174833U CN 205429127 U CN205429127 U CN 205429127U
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- inner core
- attenuator
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- dissipating casing
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Abstract
The utility model discloses an intermodulation attenuator is hanged down to high stability, including fan -less housing, install inner core, 50 ohm of circuit boards in fan -less housing and piece and the connector of attenuateing, be provided with the inner core mounting hole in the fan -less housing, the inner core set up in the inner core mounting hole and with inner core mounting hole interference fit, and fan -less housing fixed connection, the decay chip bonding is on the inner core, and decay penton overdamping piece lead wire is connected with 50 ohm of circuit board soldering tin, and 50 ohm of circuit boards are connected with the inner conductor soldering tin of connector. The utility model discloses an inner core and fan -less housing adopt the interference fit structure, have guaranteed that connection structure between them is stable, and have increased area of contact between them, have increased the cooling surface of inner core promptly, have improved the whole radiating effect of device, the utility model discloses the structural stability of whole attenuator, ground state is good, and the third order intermodulation index is stable.
Description
Technical field
This utility model relates to communication attenuator field, specifically a kind of low intermodulation attenuator of high stability.
Background technology
Along with the development of short-wave communication tedhnology, broadband, the passive device demand of low intermodulation are increased day by day by people, and the lowest intermodulation load is applied widely due to it, and demand is the most urgent.Attenuator, in microwave system, is that a Two-port netwerk has consumption Microwave Net, and its effect Shi Jiang mono-road microwave power exports after decaying by a certain percentage.The stock of existing composition frequency microwave power attenuator is resistor-type material, by certain technique resistance material is placed in the radio frequency structure of different-waveband the attenuator being the formation of corresponding frequencies.The attenuator of the resistance material of existing structure is typically by adapter, attenuator, 50 ohm of wiring boards, inner core, and heat-dissipating casing forms.Inner core and the fin shell of attenuator are to be connected by screw, the inner core of adapter and attenuator is Split type structure, also it is that screw is connected between wiring board, attenuator and inner core, this non-immediate connection, the ground state of device will necessarily be affected, affect third order intermodulation index and the heat sinking function of device.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of low intermodulation attenuator of high stability, and its attachment structure is stable, and radiating effect is more preferable, and third order intermodulation index is stable.
The technical solution of the utility model is:
A kind of low intermodulation attenuator of high stability, includes heat-dissipating casing, the inner core being installed in heat-dissipating casing, 50 ohm of wiring boards and attenuator, and adapter；It is characterized in that: in described heat-dissipating casing, be provided with inner core installing hole, described inner core be arranged in inner core installing hole and with inner core installing hole interference fit fixing with heat-dissipating casing be connected；Described attenuator is welded on inner core, and described attenuator is connected with 50 ohm of circuit boards solders by attenuator lead-in wire, and 50 ohm of wiring boards are connected with the inner wire scolding tin of adapter.
The outer conductor of described adapter is one-body molded with inner core.
Being provided with multiple tapped through hole on described heat-dissipating casing, described inner core is provided with multiple inner core screwed hole connected with tapped through hole, multiple fastening bolts sequentially pass through corresponding tapped through hole and inner core screwed hole and connect fixing to heat-dissipating casing and inner core.
The flange of described adapter is fixing with heat-dissipating casing patch merga pass connecting bolt to be connected.
Advantage of the present utility model:
Inner core of the present utility model and heat-dissipating casing use over-surplus fit structure, it is ensured that both attachment structures are stable, and add both contacts area, i.e. add the radiating surface of inner core, improve the integral heat sink effect of device；The outer conductor of this utility model adapter is one-body molded with load inner core, attenuator is welded on inner core, and 50 ohm of wiring boards and attenuator are connected by attenuator lead-in wire scolding tin, further increase the structural stability of overall attenuation device, ground state is good, and third order intermodulation index is stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
See Fig. 1, a kind of low intermodulation attenuator of high stability, include heat-dissipating casing 1,2,50 ohm of wiring boards 3 of the inner core being installed in heat-dissipating casing 1 and attenuator 4, and adapter；Inner core installing hole it is provided with in heat-dissipating casing 1, inner core 2 be arranged in inner core installing hole and with inner core installing hole interference fit, multiple tapped through hole 5 it is provided with on heat-dissipating casing 1, being provided with multiple inner core screwed hole 6 connected with tapped through hole 5 on inner core 2, multiple fastening bolts 7 sequentially pass through corresponding tapped through hole 5 and inner core screwed hole 6 by heat-dissipating casing 1 and the fixing connection of inner core 2；The flange 10 of adapter pastes with heat-dissipating casing 1 that merga pass connecting bolt is fixing to be connected；The outer conductor 8 of adapter is one-body molded with inner core 2, and attenuator 4 is welded on inner core 2, and attenuator 4 is connected with 50 ohm of wiring board 3 scolding tin by attenuator lead-in wire, and 50 ohm of wiring boards 3 are connected with inner wire 9 scolding tin of adapter.
Claims (4)
1. the low intermodulation attenuator of high stability, includes heat-dissipating casing, the inner core being installed in heat-dissipating casing, 50 ohm of wiring boards and attenuator, and adapter；It is characterized in that: in described heat-dissipating casing, be provided with inner core installing hole, described inner core be arranged in inner core installing hole and with inner core installing hole interference fit fixing with heat-dissipating casing be connected；Described attenuator is welded on inner core, and described attenuator is connected with 50 ohm of circuit boards solders by attenuator lead-in wire, and 50 ohm of wiring boards are connected with the inner wire scolding tin of adapter.
A kind of low intermodulation attenuator of high stability the most according to claim 1, it is characterised in that: the outer conductor of described adapter is one-body molded with inner core.
A kind of low intermodulation attenuator of high stability the most according to claim 1, it is characterized in that: on described heat-dissipating casing, be provided with multiple tapped through hole, being provided with multiple inner core screwed hole connected with tapped through hole on described inner core, multiple fastening bolts sequentially pass through corresponding tapped through hole and inner core screwed hole and connect fixing to heat-dissipating casing and inner core.
A kind of low intermodulation attenuator of high stability the most according to claim 1, it is characterised in that: the flange of described adapter is fixing with heat-dissipating casing patch merga pass connecting bolt to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620174833.4U CN205429127U (en) | 2016-03-08 | 2016-03-08 | Intermodulation attenuator is hanged down to high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620174833.4U CN205429127U (en) | 2016-03-08 | 2016-03-08 | Intermodulation attenuator is hanged down to high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205429127U true CN205429127U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620174833.4U Active CN205429127U (en) | 2016-03-08 | 2016-03-08 | Intermodulation attenuator is hanged down to high stability |
Country Status (1)
| Country | Link |
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| CN (1) | CN205429127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972230A (en) * | 2017-05-10 | 2017-07-21 | 合肥熠信微波通信有限公司 | A kind of low intermodulation attenuator of high stability |
-
2016
- 2016-03-08 CN CN201620174833.4U patent/CN205429127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972230A (en) * | 2017-05-10 | 2017-07-21 | 合肥熠信微波通信有限公司 | A kind of low intermodulation attenuator of high stability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |