CN204316458U - The bounce frequency filter of modified node method - Google Patents
The bounce frequency filter of modified node method Download PDFInfo
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- CN204316458U CN204316458U CN201420872375.2U CN201420872375U CN204316458U CN 204316458 U CN204316458 U CN 204316458U CN 201420872375 U CN201420872375 U CN 201420872375U CN 204316458 U CN204316458 U CN 204316458U
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Abstract
The bounce frequency filter of modified node method, comprises metal shell, resonator, switching diode array circuit, high-voltage driving circuit and digital control circuit; Resonator and switching diode array circuit form the first working cell and are arranged in the first container cavity in metal shell simultaneously, and high-voltage driving circuit and digital control circuit form the second working cell and be arranged in the second container cavity in metal shell simultaneously; Also comprise the radio frequency filter circuit being provided with choking-winding, high-voltage driving circuit is by radio frequency filter circuit signal of telecommunication connecting valve diode array circuit, and radio frequency filter circuit forms the 3rd working cell and is arranged in the 3rd container cavity in metal shell; Keep apart respectively between first, second, third container cavity three.Like this can not only individual screen radiofrequency signal, the noise signal in described first container cavity and heat also can be avoided to impact described radio frequency filter circuit and described choking-winding, substantially increase the job stability of three working cells.
Description
Technical field
The present invention relates to telecommunications field, in particular to a kind of bounce frequency filter, described bounce frequency filter is generally arranged on the delivery outlet of the power amplifier of transmitter, for the transmitting clutter frequency that effective filtering is useless, and preventing the wireless interference signal of other transmitter from entering local transmitter, bounce frequency filter belongs to band pass filter.
Background technology
Early stage powerful bounce frequency filter design weak point is that insertion loss is large, and filter effect is bad, and element radiating difference causes working life short, and when the power of product is larger, element heating amount is larger, just needs electronic component to adopt particular design to dispel the heat; Existing powerful bounce frequency filter small product size is large, and manufacturing cost is higher.For this reason, application number is 200910040262.X, and name is called a kind of patented invention of bounce frequency filter, discloses it and comprises heat conduction shell, analog circuit unit, digital control circuit plate; Described analog circuit unit comprises at least two resonance modules, switching diode array circuit, a high-voltage drive, connected by coupler between multiple described resonance modules, multiple described resonance modules is connected with described digital control circuit plate respectively by described switching diode array circuit circuit, high-voltage drive; Described analog circuit unit and digital control circuit plate are separately positioned in different heat conduction shell cavitys.According to the description of this patent, it can prevent electromagnetic interference between internal electronic element, can reduce product height or volume again, and product has excellent filter effect, and rapid heat dissipation, can keep long working stability degree.
Secondly, we are also concerned about application number is 201120428296.9, name is called the content disclosed by patent documentation of high-power tuning frequency hopping filter, it mainly adds one group of π type filter circuit in high-voltage driving circuit, according to the description of its specification, the main filtering of described π type filter circuit switches the inside noise signal interference caused due to the high frequency of described high-voltage driving circuit.But we find the resonance frequency less than 1/500th of the switching frequency only just described resonator due to described high-voltage driving circuit, and be low-down frequency, the effect of described π type filter circuit is very limited, otherwise can affect switching speed.
Summary of the invention
Testing above-mentioned application number at us is 200910040262.X, during name patented invention scheme being called a kind of bounce frequency filter and products thereof, find that the interference of its main radio-frequency electromagnetic derives from described resonance modules, and switching diode array circuit described in it is main pyrotoxin, and its signal exported of the product of this structure is also unstable, and the radiofrequency signal of described resonance modules is very large on the impact of other circuit, require further improvement the structure of this product for this reason, the radio frequency noise electromagnetic signal of its high frequency and the impact of heat on entire system thereof are further reduced.
According to above-mentioned purpose, the present invention proposes a kind of bounce frequency filter of modified node method, comprises metal shell, is arranged on the resonator of described metal shell interior also signal of telecommunication connection, switching diode array circuit, high-voltage driving circuit and digital control circuit; It is characterized in that, described resonator and described switching diode array circuit form the first working cell and are arranged in the first container cavity in described metal shell simultaneously, and described high-voltage driving circuit and described digital control circuit form the second working cell and be arranged in the second container cavity in described metal shell simultaneously; Also comprise the radio frequency filter circuit being provided with choking-winding, described high-voltage driving circuit connects described switching diode array circuit by the described radio frequency filter circuit signal of telecommunication, and described radio frequency filter circuit forms the 3rd working cell and is arranged in the 3rd container cavity in described metal shell; Keep apart respectively between described first container cavity, described second container cavity, described 3rd container cavity three.
Wherein, described resonator a kind ofly includes resonance coil and resonant capacitance and can produce the device of resonance signal; Can the unnecessary interference signal of filtering by described resonator, signal from the impedance matching box end input of resonance coil one end being positioned at described resonator, from described resonator the impedance matching box end of the resonance coil other end export.In order to realize frequency hopping (i.e. such as 20us (about 50KHz) inner conversion resonance frequency within the very short time cycle), need capacitance variations because inductance can not change for this reason, when frequency hopping works, when which frequency of needs, just by the corresponding electric capacity of diode current flow in described switching diode array, multiple electric capacity of adaptive capacity are allowed to access resonant tanks.
Wherein, described switching diode array circuit, be one group can the heavy-duty diode of resonant capacitance described in conducting, realize the adjustment to the described resonant capacitance of different capabilities when the diode current flow of varying number or cut-off.In order to realize the tight short of mounting structure, further technical scheme can also be, merged by the resonant capacitance of described switching diode array circuit and described resonator and to be arranged on same circuit board namely on diode circuit plate, described diode circuit plate is positioned at described first container cavity.Secondly, diode described in conducting is led needs electric current to carry out conducting, and those temporarily do not need the diode of conducting, then need to add high back-pressure, if add anti-high pressure to the diode of cut-off, radio frequency high voltage will allow diode damage, even if it is abnormal badly also not work for the moment.For this reason, the high voltage of needs when described high-voltage driving circuit mainly provides to described switching diode array circuit the electric current and cut-off that need during conducting under the control of described digital control circuit.Described switching diode array circuit, high-voltage driving circuit and digital control circuit can be separately positioned on one or several circuit board be separated.
Wherein, the main filtering of described radio frequency filter circuit is possibly to the radio frequency main signal that described high-voltage driving circuit oppositely sends from described resonator direction.Because the radio-frequency power voltage of described resonator is very high, and if the output of described high-voltage driving circuit is disturbed by the radio-frequency voltage of a few volt, described high-voltage driving circuit is just fragile.
According to above-mentioned technical scheme, with prior art particularly application number be that the patent of invention of 200910040262.X contrasts, can find that its useful technique effect is:
1. the first working cell owing to described resonator and described switching diode array circuit being formed is arranged in described first container cavity and is arranged on outside described first container cavity by main devices such as described high-voltage driving circuit, described digital control circuit and described choking-winding, radio frequency filter circuit, allows the chamber wall of described first container cavity can not only shield described resonator resonant radio frequency signal like this and can isolate the heat that described switching diode array circuit produced.
2. because described high-voltage driving circuit and described digital control circuit form the second working cell and in the second container cavity being arranged in described metal shell simultaneously, not only between described high-voltage driving circuit and described digital control circuit, signal transmission distance is short thus decrease the distortion of control signal for this reason, and due to described high-voltage driving circuit and described digital control circuit and described first container cavity is completely isolated opens, described high-voltage driving circuit and described digital control circuit are all not easy to be subject to the impact of electromagnetism that described resonator and described switching diode array circuit produce and heat, make the operation of described high-voltage driving circuit and described digital control circuit more stable.
3. described resonator and described switching diode itself can be suppressed to described high-voltage driving circuit and described digital control circuit oppositely to transmit the radiofrequency signal of high pressure by described radio frequency filter circuit and described choking-winding, thus protect described high-voltage driving circuit and described digital control circuit.
4. due to described 3rd container cavity respectively and described first container cavity, to keep apart between described second container cavity, can not only individual screen radiofrequency signal, also the noise signal in described first container cavity and heat can be avoided to impact described radio frequency filter circuit and described choking-winding, substantially increase the job stability of three working cells.
Wherein, described first container cavity and described second container cavity can be two cavitys in same shell, also can be two cavitys split in different metal housing.
Further technical scheme can also be, between described 3rd container cavity and described first container cavity, left and right distributes, spaced apart by division board between described 3rd container cavity and described first container cavity, described division board connects described metal shell, on the heat-conducting plate be connected on the sidewall that the diode circuit plate arranging described switching diode array circuit abuts against described metal shell or described division board or with described metal shell.Diode in described like this switching diode array circuit the heat sent out, outwards can distribute by means of described metal shell, or be delivered on described metal shell by means of described division board or described heat-conducting plate.Secondly, between described 3rd container cavity and described first container cavity, left and right distributes, and the transfer process of circuit signal can be made tightly short and the overall volume of whole described bounce frequency filter is diminished.
。Further technical scheme can also be, between described 3rd container cavity and described first container cavity, left and right distributes, spaced apart by division board between described 3rd container cavity and described first container cavity, described division board connects described metal shell, under the diode of described switching diode array circuit on the heat-conducting plate that is connected on described metal shell or described division board or with described metal shell of welding edges.Wherein, under described diode, end, ground, refers to that the diode in described switching diode array circuit is in the end of same polarity in circuit, such as, is in the end of negative or positive electrode together.Utilize the scheme of described lower ground welding edges on same plate body for this reason, can not only to transmit for their by means of described metal shell or described division board or described heat-conducting plate and drive signal of telecommunication thus save space and connecting material, and can also to utilize described metal shell or described division board or described heat-conducting plate be directly diode radiating.
Further technical scheme can also be, groove is provided with on described division board or on described heat-conducting plate, under the diode of described switching diode array circuit welding edges in described groove or near described groove, so not only can convenient welding operation and also welding reliable.
Further technical scheme can also be, described second container cavity is positioned at below described 3rd container cavity and described first container cavity or described second container cavity and described 3rd container cavity are positioned at below described first container cavity.The overall volume of described metal shell and heat insulation can be greatly reduced like this.Also for this reason, further technical scheme can also be, described 3rd container cavity between described second container cavity and described first container cavity, so further reinforcement isolation effect.
Further technical scheme can also be, the radio frequency filter circuit plate arranging the filter capacitor of described radio frequency filter circuit is roughly parallel with described division board, between described division board and described radio frequency filter circuit plate, be provided with the skeleton that can support described choking-winding.Described choking-winding can not only be maked somebody a mere figurehead like this, be also the heat radiation of described choking-winding by means of described skeleton, and the impact of described choking-winding on described radio frequency filter circuit can also be reduced.
Further technical scheme can also be, the described division board being positioned at described 3rd container cavity side is provided with screen, described screen is provided with the screen hole that described skeleton can be allowed to pass, described screen is positioned on described division board, and one end of described skeleton is positioned on described screen.There is provided location by means of described screen to the skeleton that each supports described choking-winding like this, reduce getting loose or damaging in use procedure.Certainly, according to the prompting of the program, it is envisioned that described screen can also be located on described metal shell.
Further technical scheme can also be, is also provided with the supporting bracket that can support the described skeleton other end at the side of described radio frequency filter circuit plate.There is provided location by means of described supporting bracket to the skeleton that each supports described choking-winding like this, reduce getting loose or damaging in use procedure.Certainly, according to the prompting of the program, it is envisioned that described supporting bracket can also be located on described metal shell.Because one end of described skeleton is located respectively by described screen, the structure of described supporting bracket just can relatively simple point for this reason, and described supporting bracket can be arranged on below described skeleton end or locate described skeleton above.
Further technical scheme can also be, the middle section of the resonance coil of described resonator is provided with earthing rod, and the sub-resonance coil on described earthing rod both sides intercouples.Described middle section is not at least the centre position only referring to described resonance coil, can to the left also can be more to the right.Described earthing rod refers to an electrode of the earth connection (zero potential) that can connect described bounce frequency filter.By described earthing rod, in fact making described resonance coil be divided into two becomes two sub-resonance coils intercoupled, thus not only structure is simple but also the ability of process radiofrequency signal is strong.Described earthing rod more slightly can conduct larger electric current and can be dispelled the heat to described resonance coil.
Further technical scheme can also be, described earthing rod is connected to the earth terminal of described switching diode array circuit.Namely the ground plane of the UNICOM of earth terminal institute of switching diode array is connected to.
Further technical scheme can also be, the metal shell at described first container cavity place and the metal shell at described second container cavity place are provided separately.
Further technical scheme can also be, on a lateral surface of described metal shell, be at least provided with asperities or the fin of heat radiation.Further technical scheme can also be, on the inner side of one of them outside side wall body at described first container cavity place, be at least provided with inside asperities or the inner fin of heat radiation.Heat-sinking capability can be strengthened like this by means of described inside asperities or inner fin.
Because the present invention has These characteristics and advantage, can be applied on bounce frequency filter for this reason.
Accompanying drawing explanation
Fig. 1 is the signal controlling schematic flow sheet applying bounce frequency filter of the present invention;
Fig. 2 is the structural representation applying bounce frequency filter of the present invention;
Fig. 3 is the plan structure schematic diagram of Fig. 2;
Fig. 4 is wherein a kind of structural representation of described division board;
Fig. 5 is the structural representation of described screen.
Embodiment
Be further described below in conjunction with the structure of accompanying drawing to application bounce frequency filter of the present invention.
As shown in the figure, a kind of bounce frequency filter 100 of modified node method, its RF operating frequency is at more than 30MHz, comprise metal shell 1, the resonance coil 51 be arranged in described metal shell 1, the diode circuit plate 55 being provided with switching diode array circuit and resonant capacitance, choking-winding 43, the radio frequency filter circuit plate 41 being provided with filter capacitor, high-voltage driving circuit 31 and digital control circuit 32, wherein, described resonance coil 51 mainly forms resonator with resonant capacitance, and described filter capacitor and choking-winding 43 mainly form radio frequency filter circuit.Between described resonator, switching diode array circuit, radio frequency filter circuit, high-voltage driving circuit 31 and digital control circuit 32, signal controlling flow chart is shown in shown in accompanying drawing 1 in turn.
Wherein, described metal shell 1 comprises a left side, right plate (12, 13), cover plate 11, base plate 18, central dividing plate 14 and front plate body 16, rear plate body 17, also comprise and be arranged on a described left side, right plate (12, 13) division board 15 between, space on described central dividing plate 14 is divided into two, left and right independently space i.e. the first container cavity 21 and the 3rd container cavity 23 by described division board 15, described central dividing plate 14 is by a described left side, right plate (12, 13) space between is divided into up and down independently three chambeies, namely except described first container cavity 21 and the 3rd container cavity 23, independently second container cavity 22 is also comprised.Again should be noted that, respectively independence is organized between three cavitys, do not refer to and separate utterly between them that at least also there is between them the cable-through hole allowing electric lead pass, but fluid sealant can adopted to give closed described cable-through hole through after described electric lead.
Wherein, described resonance coil 51 is screw type structures, and two electrode tips (52,53) of the described resonance coil 51 respectively signal of telecommunication are connected to described switching diode array circuit.The concrete connection outlet position of described electrode tip (52,53) on described resonance coil 51, specifically can determine according to the size of resonance frequency when debugging.Described resonator and described switching diode array circuit form the first working cell and are arranged in the first container cavity 21 in described metal shell 1 simultaneously, and namely described resonance coil 51 is positioned at described first container cavity 21 with described diode circuit plate 55.The middle section of described resonance coil 51 has thicker earthing rod 54, and described earthing rod 54 passes described diode circuit plate 55 and is electrically connected with the zero potential line of the switching diode on diode circuit plate 55.Not only water conservancy diversion and the heat radiation of described like this earthing rod 54, both sides also form two independently sub-resonance coils (501,502), and these two described sub-resonance coils (501,502) connect and intercouple, thus not only structure is simple but also the ability of process radiofrequency signal is strong.Wherein, described middle section is not at least the centre position only referring to described resonance coil 51, can to the left also can be more to the right.
Described high-voltage driving circuit 31 and described digital control circuit 32 form the second working cell and are arranged on the second circuit board 30 in the second container cavity 22 in described metal shell 1 simultaneously; One end of described high-voltage driving circuit 31 is connected with the described radio frequency filter circuit signal of telecommunication through described central dividing plate 14 by wire, and the other end is connected with described digital control circuit 32 signal of telecommunication.Owing to keeping apart between described first container cavity 21 and described second container cavity 22, the disturbing magnetic field that produces of described resonator and described switching diode array circuit and heat can not disturb described high-voltage driving circuit 31 and the work of described digital control circuit 32 for this reason, greatly improve described bounce frequency filter 100 overall work stability.
Wherein, described resonator is a kind of device that can produce resonance signal, can the unnecessary external interference signals of filtering by described resonator, external signal inputs from the impedance matching box end 61 being positioned at described resonance coil 51 one end, exports from the impedance matching box end 62 of the other end of described resonance coil 51.Described high-voltage driving circuit 31 mainly provides high-voltage signal and current signal to described switching diode array circuit under the control of described digital control circuit 32.Described switching diode array circuit, high-voltage driving circuit 31 and digital control circuit 32 can be separately positioned on one or several circuit board be separated.
Wherein, further technical scheme can also be, described first container cavity 21 and described second container cavity 22, can be two cavitys in same shell, also can be two cavitys split in different metal housing.
Further technical scheme can also be, also comprise the radio frequency filter circuit being provided with choking-winding 43 and filter capacitor, filter capacitor is arranged on described radio frequency filter circuit plate 41, described radio frequency filter circuit forms the 3rd working cell and is arranged in the 3rd container cavity 23 in described metal shell 1, described 3rd container cavity 23 respectively with described first container cavity 21, keep apart between described second container cavity 22, realize the signal of telecommunication by described 3rd working cell between described first working cell with described second working cell to be connected, wherein, the filter capacitor of described radio frequency filter circuit is connected with the signal of telecommunication between described high-voltage driving circuit 31, between described choking-winding 43 with described switching diode array circuit, the signal of telecommunication is connected.Because described resonator is a kind of device that can produce resonance signal, the resonance signal of itself and noise signal are very easy to the work feeding back to described second working cell and then affect described second working cell.For this reason, according to the program, owing to being provided with described 3rd working cell between described first working cell and described second working cell, the drive singal of described high-voltage driving circuit 31 can not only be transmitted in described 3rd working cell, and can also suppress described resonator and described switching diode itself oppositely to the radio frequency high voltage signal that described high-voltage driving circuit 31 and described digital control circuit 32 transmit.Secondly, due to described 3rd container cavity 23 respectively and described first container cavity 21, to keep apart between described second container cavity 22, can not only individual screen radiofrequency signal, also the noise signal in described first container cavity 21 and heat can be avoided to impact described radio frequency filter circuit, substantially increase the job stability of described 3rd working cell.
Further technical scheme can also be, as shown in Figures 2 and 3, between described 3rd container cavity 23 and described first container cavity 21, left and right distributes, spaced apart by division board 15 between described 3rd container cavity 23 and described first container cavity 21, described division board 15 connects described metal shell 1 thus can conduct heat, described division board 15 with central dividing plate 14 integrated molding in described metal shell 1, also can separately can manufacture.The diode circuit plate 55 arranging described switching diode array circuit abuts against on the sidewall of described division board 15, can certainly be directly to abut against on the described metal shell 1 at described first container cavity 21 place; Or arrange the heat-conducting plate (not shown in FIG.) be connected with described metal shell 1 in described first container cavity 21, described diode circuit plate 55 abuts against on described heat-conducting plate.Diode in described like this switching diode array circuit the heat sent out, can be delivered on described metal shell 1 by means of described division board 15 or described heat-conducting plate.
Further technical scheme can also be, between described 3rd container cavity 23 and described first container cavity 21, left and right distributes, spaced apart by division board 15 between described 3rd container cavity 23 and described first container cavity 21, described division board 15 connects described metal shell 1, on the heat-conducting plate that the lower ground welding edges of described switching diode array circuit is connected on the described metal shell 1 at described first container cavity 21 place or on described division board 15 or with described metal shell 1.Wherein, the end, lower ground of described switching diode array circuit, refers to that the diode in described switching diode array circuit is in the end of same polarity in circuit, such as, is in the end of negative or positive electrode pole together.Utilize same polarity end to be welded on scheme on same plate body for this reason, can not only transmit signal of telecommunication by means of described division board 15 or described heat-conducting plate for their thus save space and connecting material, and can also to utilize described division board 15 or described heat-conducting plate be directly diode radiating.
Further technical scheme can also be, as shown in Figure 4, on described division board 15 or on described heat-conducting plate, is provided with groove 150, and the lower ground welding edges of described switching diode array circuit is in described groove 150 or near described groove 150.So not only can convenient welding operation and also welding reliable.
Relative position relation between three cavitys, in addition to the above described configuration, further technical scheme can also be, described second container cavity 22 is positioned at below described first container cavity 21 with described 3rd container cavity 23, so also can greatly reduce the overall volume of described metal shell 1 and heat insulation.Further technical scheme can also be, described 3rd container cavity 23 is between described second container cavity 22 and described first container cavity 21, because this is relatively simple for structure, for this reason not shown in FIG..
Further technical scheme can also be, described radio frequency filter circuit plate 41 is roughly parallel with described division board 15, is provided with the skeleton 44 that can support described choking-winding 43 between described division board 15 and described radio frequency filter circuit plate 41.Described choking-winding 43 can not only be maked somebody a mere figurehead like this, also dispel the heat for described choking-winding 43 by means of described skeleton 44, and the impact of described choking-winding 43 on whole described radio frequency filter circuit can also be reduced.
Further technical scheme can also be, the described division board 15 being positioned at described 3rd container cavity 23 side is provided with screen 45, as shown in Figure 5, described screen 45 is provided with the screen hole 451 that described skeleton 44 can be allowed to pass, described screen 45 is positioned on described division board 15, and one end of described skeleton 44 is positioned in screen hole 451 set on described screen 45.There is provided location by means of described screen 45 to the skeleton 44 that each supports described choking-winding 43 like this, reduce getting loose or damaging in use procedure.Certainly, according to the prompting of the program, it is envisioned that described screen 45 can also be positioned on the described metal shell 1 at described 3rd container cavity 23 place.
Further technical scheme can also be, is also provided with the supporting bracket 42 that can support described skeleton 44 other end at the side of described radio frequency filter circuit plate 41.By means of described supporting bracket 42, location, end is given to the skeleton 44 that each supports described choking-winding 43 like this, reduce getting loose or damaging in use procedure.Certainly, according to the prompting of the program, it is envisioned that described supporting bracket 42 can also be located on described metal shell 1.Because one end of described skeleton 44 is located respectively by described screen 45, the structure of described supporting bracket 42 just can relatively simple point for this reason, and described supporting bracket 42 can be arranged on below described skeleton 44 end or locate described skeleton 44 above.
Further technical scheme can also be, on the lateral surface of the described upper cover plate 11 of described metal shell 1, be at least provided with asperities or the fin (not shown in FIG.) of heat radiation, asperities or the fin of these heat radiations certainly can also be distributed on the whole lateral surface of described metal shell 1 further.Further technical scheme can also be, one of them outside side wall style at least at described first container cavity 21 place, as the inner side of upper cover plate 11 or left plate 12 being provided with inside asperities or the inner fin of heat radiation, can strengthen heat-sinking capability by means of described inside asperities or inner fin like this.
Claims (15)
1. the bounce frequency filter of modified node method, comprises metal shell, is arranged on the resonator of described metal shell interior also signal of telecommunication connection, switching diode array circuit, high-voltage driving circuit and digital control circuit; It is characterized in that, described resonator and described switching diode array circuit form the first working cell and are arranged in the first container cavity in described metal shell simultaneously, and described high-voltage driving circuit and described digital control circuit form the second working cell and be arranged in the second container cavity in described metal shell simultaneously; Also comprise the radio frequency filter circuit being provided with choking-winding, described high-voltage driving circuit connects described switching diode array circuit by the described radio frequency filter circuit signal of telecommunication, and described radio frequency filter circuit forms the 3rd working cell and is arranged in the 3rd container cavity in described metal shell; Keep apart respectively between described first container cavity, the second container cavity, the 3rd container cavity three.
2. bounce frequency filter according to claim 1, it is characterized in that, merged by the resonant capacitance of described switching diode array circuit and described resonator and to be arranged on same circuit board namely on diode circuit plate, described diode circuit plate is positioned at described first container cavity.
3. bounce frequency filter according to claim 1, it is characterized in that, between described 3rd container cavity and described first container cavity, left and right distributes, spaced apart by division board between described 3rd container cavity and described first container cavity, described division board connects described metal shell, on the heat-conducting plate be connected on the sidewall that the diode circuit plate arranging described switching diode array circuit abuts against described metal shell or described division board or with described metal shell.
4. bounce frequency filter according to claim 1, it is characterized in that, between described 3rd container cavity and described first container cavity, left and right distributes, spaced apart by division board between described 3rd container cavity and described first container cavity, described division board connects described metal shell, under the diode of described switching diode array circuit on the heat-conducting plate that is connected on described metal shell or described division board or with described metal shell of welding edges.
5. bounce frequency filter according to claim 4, is characterized in that, on described division board or on described heat-conducting plate, be provided with groove, under the diode of described switching diode array circuit welding edges in described groove or near described groove.
6. bounce frequency filter according to claim 1, is characterized in that, described second container cavity is positioned at below described 3rd container cavity and described first container cavity or described second container cavity and described 3rd container cavity are positioned at below described first container cavity.
7. bounce frequency filter according to claim 1, is characterized in that, described 3rd container cavity is between described second container cavity and described first container cavity.
8. the bounce frequency filter according to claim 3 or 4, it is characterized in that, the radio frequency filter circuit plate arranging the filter capacitor of described radio frequency filter circuit is roughly parallel with described division board, between described division board and described radio frequency filter circuit plate, be provided with the skeleton that can support described choking-winding.
9. bounce frequency filter according to claim 8, it is characterized in that, the described division board being positioned at described 3rd container cavity side is provided with screen, described screen is provided with the screen hole that described skeleton can be allowed to pass, described screen is positioned on described division board, and one end of described skeleton is positioned on described screen.
10. bounce frequency filter according to claim 8, is characterized in that, is also provided with the supporting bracket that can support the described skeleton other end at the side of described radio frequency filter circuit plate.
11. according to the arbitrary described bounce frequency filter of claim 1 to 7, and it is characterized in that, the middle section of the resonance coil of described resonator is provided with earthing rod, and the sub-resonance coil on described earthing rod both sides intercouples.
12. bounce frequency filters according to claim 11, is characterized in that, described earthing rod is connected to the earth terminal of described switching diode array circuit.
13. according to the arbitrary described bounce frequency filter of claim 1 to 7, and it is characterized in that, the metal shell at described first container cavity place and the metal shell at described second container cavity place are provided separately.
14., according to the arbitrary described bounce frequency filter of claim 1 to 7, is characterized in that, on a lateral surface of described metal shell, are at least provided with asperities or the fin of heat radiation.
15., according to the arbitrary described bounce frequency filter of claim 1 to 7, is characterized in that, on the inner side of one of them outside side wall body at described first container cavity place, are at least provided with inside asperities or the inner fin of heat radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872375.2U CN204316458U (en) | 2014-12-29 | 2014-12-29 | The bounce frequency filter of modified node method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872375.2U CN204316458U (en) | 2014-12-29 | 2014-12-29 | The bounce frequency filter of modified node method |
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| CN204316458U true CN204316458U (en) | 2015-05-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467724A (en) * | 2014-12-29 | 2015-03-25 | 广东宽普科技股份有限公司 | Frequency-hopping filter with improved structure |
| CN111884614A (en) * | 2020-08-24 | 2020-11-03 | 武汉博畅通信设备有限责任公司 | 108-plus 270MHz frequency hopping filter |
-
2014
- 2014-12-29 CN CN201420872375.2U patent/CN204316458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467724A (en) * | 2014-12-29 | 2015-03-25 | 广东宽普科技股份有限公司 | Frequency-hopping filter with improved structure |
| CN104467724B (en) * | 2014-12-29 | 2017-11-14 | 广东宽普科技股份有限公司 | The bounce frequency filter of improved structure |
| CN111884614A (en) * | 2020-08-24 | 2020-11-03 | 武汉博畅通信设备有限责任公司 | 108-plus 270MHz frequency hopping filter |
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