CN201072798Y - Interface component of radio frequency filter - Google Patents
Interface component of radio frequency filter Download PDFInfo
- Publication number
- CN201072798Y CN201072798Y CNU200720152182XU CN200720152182U CN201072798Y CN 201072798 Y CN201072798 Y CN 201072798Y CN U200720152182X U CNU200720152182X U CN U200720152182XU CN 200720152182 U CN200720152182 U CN 200720152182U CN 201072798 Y CN201072798 Y CN 201072798Y
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- CN
- China
- Prior art keywords
- cable
- radio
- radio frequency
- static line
- frequency filter
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- 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
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Abstract
The utility model provides a radio frequency filter interface component for a base station equipment of the communication field, which comprises a fixing cable clip passing through a radio frequency cable, an installation flange is provided at the peripheral side of the fixing cable clip, a cable shielding layer installation face is provided at the inner periphery of the fixing cable clip, one end of the fixing cable clip is connected with the radio frequency filter through the installation flange. The radio frequency filter interface component of the utility model directly transfers the filter input or output interface with the radio frequency cable, the required assembly space is small, transferring time is few, thereby lowering the process precision of the component parts.
Description
Technical field
The utility model relates to the communication field base station equipment, relates in particular to wireless device radio frequency filter interface unit.
Background technology
Existing market is wanted miniaturization to base station equipment, and device interior device and module are placed more and more closelyer, and the cabling space in the equipment is also more and more littler.Radio-frequency filter interface input and output mouth connector switching commonly used at present.The connector switching has two kinds of forms: a kind of is non-blindmate connector, and it is to be connected on other device by the single line cable on the connector, and another kind is a blindmate connector,
If adopt non-blindmate connector, generally be at filter input or delivery outlet dress radio frequency (RF) coaxial connector, as the SMA radio frequency (RF) coaxial connector, have characteristics such as volume is little, bandwidth, mechanical electric superior performance, reliability height, it is most widely used radio frequency connector, perhaps SMB radio frequency (RF) coaxial connector (pressing a kind of small-sized push-in type radio frequency (RF) coaxial connector of MLI-C-39012 closed specification development and production), and then by a cable filter is connected with power amplifier.Like this, low, the required installing space of the physical dimension machining accuracy of Assembly part is bigger.
If adopt blindmate connector, be that the end with blindmate connector is contained on the filter, the other end is contained on the power amplifier, allows them directly to inserting then.The blindmate connector occupation mode generally has two kinds: 1) both sides tape splicing line all, machining accuracy height; 2) tape splicing line on one side, another side wiring cable, machining accuracy is than both sides tape splicing line low all.Generally speaking, when using blindmate connector to connect, required installing space is less, but the physical dimension machining accuracy height of Assembly part.
For, reed is fragile in the BMA connector, and particularly two ends all are to select band line structure (this is that blindmate connector quality of fit height causes) for use, and plugging several times, the interior reed of BMA just has the damage phenomenon; And the blindmate connector of SMP and MMBX model is made up of three parts, and it is big a little that it adjusts the position, and general maximum position offset amount is at 0.4mm, but this type of connector price is higher.
The utility model content
The technical problems to be solved in the utility model provides a kind of radio-frequency filter interface unit, and directly with radio frequency cable through connection filter input or output interface, required assembly space is little, and the switching number of times is few, reduces the machining accuracy of structural member.
In order to address the above problem, the utility model provides a kind of radio-frequency filter interface unit, comprise the static line cable clip that is used to pass the radio frequency cable, the outer circumferential side of described static line cable clip is provided with mounting flange, the inner peripheral surface of described static line cable clip is provided with cable shielding layer installed surface, and an end of described static line cable clip is connected with radio-frequency filter by described mounting flange.
Further, above-mentioned radio-frequency filter interface unit also can have following characteristics: described interface unit also comprises heat-shrinkable T bush, and described heat-shrinkable T bush is enclosed within described static line cable clip outer surface and described cable outer surface.
Further, above-mentioned radio-frequency filter interface unit also can have following characteristics: described static line cable clip adopts the mode of welding or crimping to be connected with cable.
Further, above-mentioned radio-frequency filter interface unit also can have following characteristics: when adopting described welding manner, the outside of described fixed cable clamp cable screen installed surface is provided with welding hole.
Further, above-mentioned radio-frequency filter interface unit also can have following characteristics: when adopting described crimping mode, described interface unit also comprises a metallic sheath, and described metallic sheath is arranged between the cable shielding layer and cable insulating barrier of described static line cable clip.
Further, above-mentioned radio-frequency filter interface unit also can have following characteristics: the inner peripheral surface of described static line cable clip also is provided with cable protection layer installed surface, is provided with a step surface between described cable protection layer installed surface and the described cable shielding layer installed surface.
Radio-frequency filter interface unit of the present utility model provides a kind of reliable switching form, can reduce switching number of times and required installing space between radio-frequency filter and the power amplifier, reduce the structural member machining accuracy, reduce system loss, reduced cost, improve the reliability of system equipment.
Description of drawings
Fig. 1 is present radio-frequency filter interface unit schematic diagram;
Fig. 2 is a radio-frequency filter interface unit schematic diagram of the present utility model;
Fig. 3 is the side-looking partial schematic sectional view of Fig. 2;
Fig. 4 is the partial enlarged drawing of the A part among Fig. 3;
Fig. 5 is the structural representation of flexible radio frequency cable;
Fig. 6 is the structural representation of the static line cable clip of radio frequency cable when being the flexible radio frequency cable;
Fig. 7 is that cutaway view is looked on the left side of Fig. 6;
Fig. 8 is the assembling schematic diagram of the radio-frequency filter interface unit of the present utility model of the embodiment among Fig. 6;
Fig. 9 is the cutaway view of metallic sheath;
Figure 10 is the structural representation of half steel radio frequency cable;
Figure 11 is the structural representation of the static line cable clip of radio frequency cable when being half steel radio frequency cable;
Figure 12 is the assembling schematic diagram of the radio-frequency filter interface unit of the present utility model of the embodiment among Figure 10.
Embodiment
Below in conjunction with accompanying drawing, radio-frequency filter interface unit of the present utility model is described in further detail.
As shown in Figure 1, present radio-frequency filter interface unit comprises that the form of the connector 103 of the connector 101 of input port of radio-frequency filter 102 and delivery outlet is non-blindmate connector SMA/SMB or blindmate connector BMA/MMBX/SMP.
Extremely shown in Figure 4 as Fig. 2, radio-frequency filter interface unit of the present utility model mainly comprises static line cable clip 202, among Fig. 2, one end of static line cable clip 202 is installed in the input port of radio-frequency filter 201, also can be installed in delivery outlet when needing, directly be inserted in the installing hole of radio-frequency filter 201.Radio frequency cable 204 1 ends are fixed in the static line cable clip 202, and the other end connects radio frequency (RF) coaxial connector 206, by radio frequency (RF) coaxial connector 206 and radio frequency cable 204 radio-frequency filter 201 is connected to power amplifier.The part of heat-shrinkable T bush 203 is enclosed within on the installation screen outer surface 401 of static line cable clip 202, and another part is enclosed within on the outer surface 304 of radio frequency cable 204.
First embodiment
Present embodiment is the interface unit of radio frequency cable when being the flexible radio frequency cable, and as shown in Figure 5, the flexible radio frequency cable comprises: radio frequency cable inner core 301, radio frequency cable insulating barrier 302, radio frequency cable screen 303 and radio frequency cable external protection 304.
Fig. 6 is the structural representation of the static line cable clip 202 of present embodiment; inner peripheral surface 406 of static line cable clip 202 (for insertion end) and 407 directions are provided with cable protection layer installed surface 406 and cable shielding layer installed surface 404 successively; separate with a step 405 between cable shielding layer installed surface 404 and the cable protection layer installed surface 406, the outer circumferential side of the port of export of static line cable clip 202 is provided with welding hole 403.When adopting the crimping mode, interface unit also includes metallic sheath 307, and its structure between metallic sheath 307 insertion radio frequency cable screens 303 and the insulating barrier 302, when guaranteeing that screen 303 clamps with static line cable clip 202, has good electrical contact as shown in Figure 9.Static line cable clip 202 outer surfaces are provided with mounting flange 402, and the end face of mounting flange 402 is provided with installing hole 407, as shown in Figure 7.
In conjunction with Fig. 8, the installation step of the radio-frequency filter interface unit of present embodiment is described below:
Step 1: dial the radio frequency cable knob
According to actual needs, an end of radio frequency cable is pulled out external protection 304 expose screen 303, pull out screen 303 and insulating barrier 302 again, the end face of screen 303 and insulating barrier 302 is trimmed, expose the inner core 301 of radio frequency cable.At first be inserted in a joint heat-shrinkable T bush 203 from the radio frequency cable end of having dialled; then; in this end-fire cable insertion frequently static line cable clip 202; protective layer 304 end faces that make the radio frequency cable push up step 405 places along the cable protection layer installed surface 406 of static line cable clip inner peripheral surface; and screen 303 end faces of radio frequency cable are alignd with the end face of the port of export of static line cable clip, make the inner core 301 of radio frequency cable expose the port of export of static line cable clip.
Step 2: the radio frequency cable is connected with the static line cable clip
1, welding
Behind completing steps 1, make the screen 303 circumference welding of fixed cable clamp surface and radio frequency cable from welding hole 403 tin fillings of static line cable clip, then, weld around the end face with the end face of static line cable clip 202 and the screen 303 of radio frequency cable again.
2, crimping
Behind completing steps 1, between the screen 303 of radio frequency cable and insulating barrier 302, insert metallic sheath 307 from static line cable clip welding end surface 404, the outer surface of this metallic sheath 307 is contacted with cable shielding layer 303, inner surface is to cable insulating barrier 302, clamp with specific purpose tool again, make the static line cable clip 406 of interface unit well contact with cable shielding layer 303.
Step 3: the assembling of static line cable clip
Behind completing steps 2, the part of heat-shrinkable T bush 203 is enclosed within on the insertion end 401 of static line cable clip, another part is enclosed within the protective layer 304 of radio frequency cable, then with hair dryer contraction heat Heat-Shrinkable Tubings up to tighten up for till.
Step 4: the assembling of interface unit and radio-frequency filter
The insertion end of static line cable clip is inserted in the installing hole of radio-frequency filter 201, then the installing hole 407 of hold-down screw from the mounting flange 402 of static line cable clip is screwed on the housing screwed hole of radio-frequency filter 201, the mounting flange 402 of static line cable clip and the housing installed surface of radio-frequency filter 201 are electrically contacted well.Then, the inner core 301 of radio frequency cable is connected with resonator connecting rod in radio-frequency filter 201 housings firm.
Second embodiment
Present embodiment is the interface unit of radio frequency cable when being half steel radio frequency cable, and as shown in figure 10, half steel radio frequency line cable wrap is drawn together: radio frequency cable inner core 601, radio frequency cable insulating barrier 602 and radio frequency cable external protection 603.
Figure 11 is the structural representation of the static line cable clip 202 of present embodiment, and the inner peripheral surface of static line cable clip 202 is provided with cable protection layer installed surface 504, and the outer circumferential side of the port of export of static line cable clip 202 is provided with welding hole 403.Static line cable clip 202 middle parts are provided with mounting flange 502, and are similar to first embodiment, and the end face of mounting flange 502 also is provided with the installing hole (not shown).
In conjunction with Figure 12, the installation step of the radio-frequency filter interface unit of present embodiment is described below:
Step 1: dial the radio frequency cable knob
According to actual conditions, the half steel cable is shaped, pull out the screen 603 and the insulating barrier 602 of half steel cable, the end face of screen 603 and insulating barrier 602 is trimmed, expose the inner core 601 of radio frequency cable.At first be inserted in a joint heat-shrinkable T bush 203, then, this end half steel cable inserted the static line cable clip from left to right, the end face of the screen 603 of radio frequency cable is alignd with the end face of the port of export of static line cable clip from the half steel cable end of having handled well; Make the inner core 601 of radio frequency cable expose the port of export of static line cable clip, 601 length is ordered according to actual needs.
Step 2: the radio frequency cable welds mutually with the static line cable clip
Behind completing steps 1, the shape of half steel cable is corresponded to actual needs, make the screen 603 circumference welding of static line cable clip and radio frequency cable from scolding tin hole 503 tin fillings of static line cable clip, then, again with the end face 504 of static line cable clip respectively with the end face of the screen 603 of radio frequency cable and insulating barrier 602 around welding.
Step 3: the assembling of static line cable clip
Behind completing steps 2, the part of heat-shrinkable T bush 203 is enclosed within on the outer surface of static line cable clip insertion end 501, another part is at radio frequency cable screen 603, then with hair dryer contraction heat Heat-Shrinkable Tubings up to tighten up for till.
Step 4: the assembling of interface unit and radio-frequency filter
The insertion end of static line cable clip is inserted in the installing hole of radio-frequency filter 201, then the installing hole of hold-down screw from the mounting flange 502 of static line cable clip is screwed on the housing screwed hole of radio-frequency filter 201, the mounting flange 502 of static line cable clip is contacted well with the housing installed surface of radio-frequency filter 201.Then, the inner core 601 of radio frequency cable is connected with resonator connecting rod in radio-frequency filter 201 housings firm.
In sum, an end of radio-frequency filter interface unit of the present utility model is connected with radio-frequency filter, and the other end is connected with radio frequency (RF) coaxial connector, and this radio frequency (RF) coaxial connector can be screwed into or insert radio frequency (RF) coaxial connector corresponding on the power amplifier.Switching number of times and required installing space between radio-frequency filter and the power amplifier have been reduced.Reduced the structural member machining accuracy.Simultaneously, reliably be connected with radio-frequency filter, on the radio frequency cable of radio-frequency filter equipped at outlet port, install and fix cable clamp in order to guarantee the radio frequency cable.Static line cable clip and radio frequency cable adopt welding or crimping, it is firm that the static line cable clip is connected with radio frequency cable, then, mounting flange by static line cable clip 202 is installed on the side housing of radio-frequency filter 201, and the mounting flange of static line cable clip 202 is contacted well with the installed surface of radio-frequency filter 201.
Claims (6)
1. radio-frequency filter interface unit, it is characterized in that, comprise the static line cable clip that is used to pass the radio frequency cable, the outer circumferential side of described static line cable clip is provided with mounting flange, the inner peripheral surface of described static line cable clip is provided with cable shielding layer installed surface, and an end of described static line cable clip is connected with radio-frequency filter by described mounting flange.
2. radio-frequency filter interface unit as claimed in claim 1 is characterized in that described interface unit also comprises heat-shrinkable T bush, and described heat-shrinkable T bush is enclosed within described static line cable clip outer surface and described cable outer surface.
3. radio-frequency filter interface unit as claimed in claim 2 is characterized in that, described static line cable clip adopts the mode of welding or crimping to be connected with cable.
4. radio-frequency filter interface unit as claimed in claim 3 is characterized in that, when adopting described welding manner, the outside of described fixed cable clamp cable screen installed surface is provided with welding hole.
5. radio-frequency filter interface unit as claimed in claim 3 is characterized in that, when adopting described crimping mode, described interface unit also comprises a metallic sheath, and described metallic sheath is arranged between the cable shielding layer and cable insulating barrier of described static line cable clip.
6. radio-frequency filter interface unit as claimed in claim 5 is characterized in that, the inner peripheral surface of described static line cable clip also is provided with cable protection layer installed surface, is provided with a step surface between described cable protection layer installed surface and the described cable shielding layer installed surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720152182XU CN201072798Y (en) | 2007-07-09 | 2007-07-09 | Interface component of radio frequency filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720152182XU CN201072798Y (en) | 2007-07-09 | 2007-07-09 | Interface component of radio frequency filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201072798Y true CN201072798Y (en) | 2008-06-11 |
Family
ID=39551354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720152182XU Expired - Fee Related CN201072798Y (en) | 2007-07-09 | 2007-07-09 | Interface component of radio frequency filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201072798Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098557A (en) * | 2015-08-28 | 2015-11-25 | 国网山东莒南县供电公司 | 2M cable head manufacturing process |
| WO2016058529A1 (en) * | 2014-10-13 | 2016-04-21 | 中兴通讯股份有限公司 | Outdoor equipment external interface protection apparatus |
| CN106129622A (en) * | 2016-08-17 | 2016-11-16 | 苏州市吴通天线有限公司 | A kind of coaxial cable ground connection and fixing flange |
-
2007
- 2007-07-09 CN CNU200720152182XU patent/CN201072798Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058529A1 (en) * | 2014-10-13 | 2016-04-21 | 中兴通讯股份有限公司 | Outdoor equipment external interface protection apparatus |
| CN105098557A (en) * | 2015-08-28 | 2015-11-25 | 国网山东莒南县供电公司 | 2M cable head manufacturing process |
| CN105098557B (en) * | 2015-08-28 | 2017-11-10 | 国网山东省电力公司莒南县供电公司 | 2M manufacturing cable head techniques |
| CN106129622A (en) * | 2016-08-17 | 2016-11-16 | 苏州市吴通天线有限公司 | A kind of coaxial cable ground connection and fixing flange |
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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: 20080611 Termination date: 20140709 |
|
| EXPY | Termination of patent right or utility model |