CN101728609A - Implementing method for preventing signals of coaxial filter from leaking and signal processing device - Google Patents
Implementing method for preventing signals of coaxial filter from leaking and signal processing device Download PDFInfo
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- CN101728609A CN101728609A CN201010000281A CN201010000281A CN101728609A CN 101728609 A CN101728609 A CN 101728609A CN 201010000281 A CN201010000281 A CN 201010000281A CN 201010000281 A CN201010000281 A CN 201010000281A CN 101728609 A CN101728609 A CN 101728609A
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Abstract
The invention discloses an implementing method for preventing signals of coaxial filter from leaking. In the method, a device of box-shaped structure is arranged and comprises an external box-shaped structure, a cover board structure, a filter and a multi-section box-shaped structure; the filter is arranged in the internal cavity of the box-shaped structure and forms a signal channel with the box-shaped structure; a clapboard is arranged in the box-shaped structure to partition the internal cavity of the box-shaped structure into a plurality of blocking rooms; a concave groove is arranged on the contact face between the upper surface of the clapboard and the cover board; one end of the box-shaped structure is provided with a signal receiving port and the other end thereof is provided with at least two signal outputting ports, and the ports are in conducting connection with the box-shaped structure; an external transmission signal is transmitted into the box-shaped structure via the signal receiving port and transmitted to the signal outputting ports after the box-shaped structure and the filter induce with each other. And the invention also discloses a signal processing device for implementing the method.
Description
Technical field
The present invention relates to mobile communication technology field and electronic technology field, relate in particular to a kind of implementation method that prevents signals of coaxial filter from leaking, more relate to a kind of signal processing apparatus of realizing this method.
Background technology
Along with the development of wireless technology, integrated, miniaturization becomes a development trend of communication equipment.Because coaxial cavity filter is the system that forms a sealing by the cover plate of the fastening cavity of screw.Because the cavity machining accuracy is not enough, add the whole sealing of filter through after dismantling several times, cause the distortion of shell cavity and cover plate, sealing system is destroyed, cause filter signal to be revealed, influence inhibition degree between the duplexer transceiver channel and mixer and respectively close isolation between the paths, destroyed the performance of filter, duplexer, mixer, cause product lot quantity to scrap, bring very big loss to enterprise.The existing method that solves the filter signal leakage has three kinds: the one, and the flatness and the roughness of raising cavity and cover plate contact-making surface; The 2nd, the hardness of increasing cavity and cover plate materials; The 3rd, the quantity of increase cavity and cover plate trip bolt; The relevant device that said method is equipped with it brings the inconvenience of machining and installation, and cost is higher.
In sum, the existing leakage signal method that solves coaxial cavity filter can't adapt to the development of modern wireless communication technique, can not satisfy the needs of hyundai electronics mechanics of communication.
Summary of the invention
The object of the present invention is to provide a kind of implementation method that prevents signals of coaxial filter from leaking, at the surface fluting that the cavity of filter contacts with cover plate, the width of groove and the degree of depth are decided according to the width of contact-making surface, increase pressure by the contact area that reduces cavity and cover plate, form a sealing system, prevent the filter signal leakage; Another purpose of the present invention is to provide a kind of signal processing apparatus of realizing this method.
For effectively addressing the above problem, the technical scheme that the present invention takes is as follows:
A kind of implementation method that prevents signals of coaxial filter from leaking, its method may further comprise the steps:
(1) device of a box like structure is set, described device comprises an outside box-like body structure, a covering plate structure, a filter and multistage box-like body structure, described filter places described box-like body inside configuration cavity, and forms signal path with described box-like body structure; Described cover plate capping also is provided with a plurality of hold-down nuts, and the contact-making surface of described box like structure and described cover plate is provided with a plurality of cylindrical apertures, and described hold-down nut is corresponding mutually with described aperture position, and described contact-making surface comprises box like structure outer chamber wall and inner space dividing plate.
(2) in described box like structure inside dividing plate is set described box like structure internal cavity is divided into a plurality of barriers space, groove is set in the contact-making surface position of described dividing plate upper surface and described cover plate; Described groove cell wall is 0.75mm-1mm from the cavity wall distance, groove depth 0.5mm-2mm; The surface groove width that the cavity of described filter contacts with cover plate and the degree of depth form a sealing system less than the width and the height of contact-making surface.
(3) described box like structure one end is provided with a receiver port, at least two signal output ports of other end setting, and described port is connected with the conducting of described box-like body structure; It is consistent with the reception and the outbound course of described filter signal transmit port that the port of described receiver port and signal output port is provided with direction, and connect by described box-like body structure mutual conduction, described box-like body structure respectively with described signal output port conducting.
(4) the external transmission signal transfers in the described box like structure by described receiver port, transfers to described signal output port after interacting by described box-like body structure and described filter; Described filter receives in the processing signals process and selects fixed frequency box-like body structural transmission by frequency range and signal value classification processing back, and the signal transmission route is consistent with the signal transmission pathway that described signal transmission port connects.
(5) described groove produces pressure with described box like structure and the tight pressing of cover plate, and described transmission signals is pressed together on transmission in the described transmission channel, avoids signal to leak from described box like structure and described cover plate junction; Described signal transmission course in transmission channel is not disturbed mutually, and described box-like body structure is made of described box like structure outer chamber wall, cover plate and inner described dividing plate interblock gap, and the inner pressing degree of described transmission channel is higher than the transmission frequency of transmission signals.
A kind of signal processing apparatus of realizing said method, it comprises a box like structure, a filter, a covering plate structure and multistage box-like body structure, described filter places described box-like body inside configuration cavity, and forms signal path with described box-like body structure; Described box like structure inside comprises that dividing plate is divided into a plurality of barriers space with described box like structure internal cavity, and the contact-making surface position of described dividing plate upper surface and described cover plate comprises groove; Described box like structure one end comprises a receiver port, and the other end comprises at least two signal output ports, and described port is connected with the conducting of described box-like body structure respectively.
Described cover plate capping also comprises a plurality of hold-down nuts, the contact-making surface of described box like structure and described cover plate also comprises a plurality of cylindrical apertures, described hold-down nut is corresponding mutually with described aperture position, and described contact-making surface comprises box like structure outer chamber wall and inner space dividing plate.
Described groove cell wall is 0.75mm-1mm from the cavity wall distance, groove depth 0.5mm-2mm; The surface groove width that the cavity of described filter contacts with cover plate and the degree of depth are less than the width and the height of contact-making surface; Comprise a plurality of cylindrical resonant rods in the described signal transmission passage respectively.
Beneficial effect of the present invention is: the invention provides the implementation method and the signal processing apparatus that prevent signals of coaxial filter from leaking and slot at the cavity of filter and the surface that contacts of cover plate, the width of groove and the degree of depth are decided according to the width of contact-making surface, thereby the contact area that reduces cavity and cover plate increases pressure, like this at the screw of equivalent amount, equal moment is fastening, realize more performance, prevented between the duplexer transceiver channel and mixer respectively closes leakage signal between the paths, the relevant device that is equipped with it in the time of implementation method brings machining and easier for installation, and has reduced cost; The topology layout of science modifier of the present invention itself, thus reaching obvious improves that paths is many because of closing, the spacing frequency narrow bandwidth bring mutual between the purpose of signal cross-talk, and operation is simple, easy batch process; Mixer provided by the invention is simple in structure, and is rationally distributed, and the isolation height has fabulous response forms, can improve the performance of network greatly, increase the reliability of network, and its volume is little, and adaptability is strong, and very wide application space is arranged.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a signal processing apparatus perspective view of the present invention;
Fig. 2 is a signal processing device interposed structure vertical view of the present invention.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of implementation method that prevents signals of coaxial filter from leaking, its method may further comprise the steps: (1) is provided with the device of a box like structure, described device comprises an outside box-like body structure 11, a covering plate structure, a filter and multistage box-like body structure 15, described filter places described box-like body structure 11 internal cavities, and forms signal path with described box-like body structure 15; Described cover plate capping also is provided with a plurality of hold-down nuts, described box like structure 11 is provided with a plurality of cylindrical apertures 17 with the contact-making surface of described cover plate, described hold-down nut is corresponding mutually with described aperture 17 positions, and described contact-making surface comprises box like structure outer chamber wall and inner space dividing plate.
(2) in described box like structure 11 inside dividing plate is set described box like structure internal cavity is divided into a plurality of barriers space 21, groove 14 is set in the contact-making surface position of described dividing plate upper surface and described cover plate; Described groove 14 cell walls are 0.75mm-1mm from the cavity wall distance, groove depth 0.5mm-2mm; Surface groove 14 width that the cavity of described filter contacts with cover plate and the degree of depth form a sealing system less than the width and the height of contact-making surface.
(3) described box like structure 11 1 ends are provided with a receiver port 13, at least two signal output ports of other end setting 20, and described port is connected with described box-like body structure 15 conductings; It is consistent with the reception and the outbound course of described filter signal transmit port that the port of described receiver port 13 and signal output port 20 is provided with direction, and connect by described box-like body structure 15 mutual conduction, described box-like body structure 15 respectively with described signal output port 20 conductings.
(4) the external transmission signal transfers in the described box like structure by described receiver port 13, transfers to described signal output port 20 after interacting with described filter by described box-like body structure 15; Described filter receives in the processing signals process and selects 15 transmission of fixed frequency box-like body structure by frequency range and signal value classification processing back, and the signal transmission route is consistent with the signal transmission pathway that described signal transmission port connects.
(5) described groove 14 produces pressure with described box like structure and the tight pressing of cover plate, and described transmission signals is pressed together on transmission in the described transmission channel, avoids signal to leak from described box like structure and described cover plate junction; Described signal transmission course in transmission channel is not disturbed mutually, and described box-like body structure 15 is made of described box like structure outer chamber wall, cover plate and inner described dividing plate interblock gap, and the inner pressing degree of described transmission channel is higher than the transmission frequency of transmission signals.
Referring to Fig. 1 and Fig. 2, a kind of signal processing apparatus of realizing said method, it comprises a box like structure, a filter, a covering plate structure and multistage box-like body structure 15, and described filter places described box-like body structure 11 internal cavities, and forms signal path with described box-like body structure 15; Described box like structure inside comprises that dividing plate is divided into a plurality of barriers space 21 with described box like structure internal cavity, and the contact-making surface position of described dividing plate upper surface and described cover plate comprises groove 14; Described box like structure one end comprises a receiver port 13, and the other end comprises at least two signal output ports 20, and described port is connected with described box-like body structure 15 conductings respectively.
Described cover plate capping also comprises a plurality of hold-down nuts, the contact-making surface of described box like structure and described cover plate also comprises a plurality of cylindrical apertures 17, described hold-down nut is corresponding mutually with described aperture position, and described contact-making surface comprises box like structure outer chamber wall and inner space dividing plate.
Described groove 14 cell walls are 0.75mm-1mm from the cavity wall distance, groove depth 0.5mm-2mm; Surface groove 14 width that the cavity of described filter contacts with cover plate and the degree of depth are less than the width and the height of contact-making surface; Comprise a plurality of cylindrical resonant rods 12 in the described signal transmission passage respectively.
The present invention is not limited to above-mentioned execution mode, and all employings and analog structure of the present invention and method thereof realize that all execution modes of the object of the invention are all within protection scope of the present invention.
Claims (9)
1. an implementation method that prevents signals of coaxial filter from leaking is characterized in that, its method may further comprise the steps:
(1) device of a box like structure is set, described device comprises an outside box-like body structure, a covering plate structure, a filter and multistage box-like body structure, described filter places described box-like body inside configuration cavity, and forms signal path with described box-like body structure;
(2) in described box like structure inside dividing plate is set described box like structure internal cavity is divided into a plurality of barriers space, groove is set in the contact-making surface position of described dividing plate upper surface and described cover plate;
(3) described box like structure one end is provided with a receiver port, at least two signal output ports of other end setting, and described port is connected with the conducting of described box-like body structure;
(4) the external transmission signal transfers in the described box like structure by described receiver port, transfers to described signal output port after interacting by described box-like body structure and described filter;
(5) described groove produces pressure with described box like structure and the tight pressing of cover plate, and described transmission signals is pressed together on transmission in the described transmission channel, avoids signal to leak from described box like structure and described cover plate junction.
2. the implementation method that prevents signals of coaxial filter from leaking according to claim 1, it is characterized in that, described step (1) is further comprising the steps of: described cover plate capping also is provided with a plurality of hold-down nuts, the contact-making surface of described box like structure and described cover plate is provided with a plurality of cylindrical apertures, described hold-down nut is corresponding mutually with described aperture position, and described contact-making surface comprises box like structure outer chamber wall and inner space dividing plate.
3. the implementation method that prevents signals of coaxial filter from leaking according to claim 1 is characterized in that, described step (2) is further comprising the steps of: described groove cell wall is 0.75mm-1mm from the cavity wall distance, groove depth 0.5mm-2mm; The surface groove width that the cavity of described filter contacts with cover plate and the degree of depth form a sealing system less than the width and the height of contact-making surface.
4. the implementation method that prevents signals of coaxial filter from leaking according to claim 1, it is characterized in that, described step (3) is further comprising the steps of: it is consistent with the reception and the outbound course of described filter signal transmit port that the port of described receiver port and signal output port is provided with direction, and connect by described box-like body structure mutual conduction, described box-like body structure respectively with described signal output port conducting.
5. the implementation method that prevents signals of coaxial filter from leaking according to claim 1, it is characterized in that, described step (4) is further comprising the steps of: described filter receives in the processing signals process and selects fixed frequency box-like body structural transmission by frequency range and signal value classification processing back, and the signal transmission route is consistent with the signal transmission pathway that described signal transmission port connects.
6. the implementation method that prevents signals of coaxial filter from leaking according to claim 1, it is characterized in that, described step (5) is further comprising the steps of: described signal transmission course in transmission channel is not disturbed mutually, described box-like body structure is made of described box like structure outer chamber wall, cover plate and inner described dividing plate interblock gap, and the inner pressing degree of described transmission channel is higher than the transmission frequency of transmission signals.
7. signal processing apparatus of realizing the described method of claim 1, it is characterized in that, it comprises a box like structure, a filter, a covering plate structure and multistage box-like body structure, and described filter places described box-like body inside configuration cavity, and forms signal path with described box-like body structure; Described box like structure inside comprises that dividing plate is divided into a plurality of barriers space with described box like structure internal cavity, and the contact-making surface position of described dividing plate upper surface and described cover plate comprises groove; Described box like structure one end comprises a receiver port, and the other end comprises at least two signal output ports, and described port is connected with the conducting of described box-like body structure respectively.
8. signal processing apparatus according to claim 7, it is characterized in that, described cover plate capping also comprises a plurality of hold-down nuts, the contact-making surface of described box like structure and described cover plate also comprises a plurality of cylindrical apertures, described hold-down nut is corresponding mutually with described aperture position, and described contact-making surface comprises box like structure outer chamber wall and inner space dividing plate.
9. signal processing apparatus according to claim 7 is characterized in that, described groove cell wall is 0.75mm-1mm from the cavity wall distance, groove depth 0.5mm-2mm; The surface groove width that the cavity of described filter contacts with cover plate and the degree of depth are less than the width and the height of contact-making surface; Comprise a plurality of cylindrical resonant rods in the described signal transmission passage respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000281A CN101728609A (en) | 2010-01-07 | 2010-01-07 | Implementing method for preventing signals of coaxial filter from leaking and signal processing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000281A CN101728609A (en) | 2010-01-07 | 2010-01-07 | Implementing method for preventing signals of coaxial filter from leaking and signal processing device |
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| CN101728609A true CN101728609A (en) | 2010-06-09 |
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| CN201010000281A Pending CN101728609A (en) | 2010-01-07 | 2010-01-07 | Implementing method for preventing signals of coaxial filter from leaking and signal processing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361116A (en) * | 2011-10-11 | 2012-02-22 | 深圳市大富科技股份有限公司 | Cavity filter and cavity filter cover plate |
| CN105070982A (en) * | 2015-08-12 | 2015-11-18 | 深圳市国人射频通信有限公司 | Cavity radio frequency device and manufacturing method thereof |
| WO2020061915A1 (en) * | 2018-09-27 | 2020-04-02 | Nokia Shanghai Bell Co., Ltd. | A diplexer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910003A (en) * | 1982-07-07 | 1984-01-19 | Murata Mfg Co Ltd | Filter device |
| CN88200832U (en) * | 1988-01-15 | 1988-11-09 | 朱兴源 | Plate frame of filter press for separating solid and liquid |
| CN201018482Y (en) * | 2007-03-12 | 2008-02-06 | 京信通信系统（中国）有限公司 | Dual-frequency combiner |
| CN101557025A (en) * | 2009-05-20 | 2009-10-14 | 南京赛格微电子科技有限公司 | Compact GSM/CDMA shared combiner for transceiving |
-
2010
- 2010-01-07 CN CN201010000281A patent/CN101728609A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910003A (en) * | 1982-07-07 | 1984-01-19 | Murata Mfg Co Ltd | Filter device |
| CN88200832U (en) * | 1988-01-15 | 1988-11-09 | 朱兴源 | Plate frame of filter press for separating solid and liquid |
| CN201018482Y (en) * | 2007-03-12 | 2008-02-06 | 京信通信系统（中国）有限公司 | Dual-frequency combiner |
| CN101557025A (en) * | 2009-05-20 | 2009-10-14 | 南京赛格微电子科技有限公司 | Compact GSM/CDMA shared combiner for transceiving |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361116A (en) * | 2011-10-11 | 2012-02-22 | 深圳市大富科技股份有限公司 | Cavity filter and cavity filter cover plate |
| CN102361116B (en) * | 2011-10-11 | 2013-12-04 | 深圳市大富科技股份有限公司 | Cavity filter and cavity filter cover plate |
| CN105070982A (en) * | 2015-08-12 | 2015-11-18 | 深圳市国人射频通信有限公司 | Cavity radio frequency device and manufacturing method thereof |
| WO2020061915A1 (en) * | 2018-09-27 | 2020-04-02 | Nokia Shanghai Bell Co., Ltd. | A diplexer |
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Application publication date: 20100609 |