CN101826851A - Frequency-hopping filter with multi-band selection function - Google Patents
Frequency-hopping filter with multi-band selection function Download PDFInfo
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- CN101826851A CN101826851A CN 201010142821 CN201010142821A CN101826851A CN 101826851 A CN101826851 A CN 101826851A CN 201010142821 CN201010142821 CN 201010142821 CN 201010142821 A CN201010142821 A CN 201010142821A CN 101826851 A CN101826851 A CN 101826851A
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Abstract
The invention discloses a frequency-hopping filter with multi-band selection function, which comprises an input band selection radio frequency switch, a segment filter and an output band selection radio frequency switch which are sequentially connected in a heat-conducting housing, as well as a logic control circuit for controlling the working of the components; and the segment filter comprises two cavity filters with different bands, and the different cavity filters can be selected for carrying out signal processing according to the inputted different frequency band signals. The frequency-hopping filter has the advantages of small product volume, high degree of integration, excellent filtration effect, fast heat radiation and long-term working stability.
Description
Technical field
The present invention relates to electronic communication field, relate in particular to a kind of bounce frequency filter of handling big frequency range signal.
Background technology
Frequency hopping radio set has very strong anti-interference, anti-interception capability as the communication countermeasures equipment of a new generation, makes it demonstrate huge superiority in the Modern Electronic antagonism that electromagnetic interference is on the rise.The parts of frequency hopping radio set most critical are exactly bounce frequency filter, its performance quality about directly the development of frequency hopping communications.Bounce frequency filter generally be installed in before the transmitter antenna or receiver antenna after.Be used for the useless emission clutter frequency of effective filtering, and prevent that the air interference signal of other transmitter from entering local transmitter, bounce frequency filter belongs to band pass filter.It is big that present bounce frequency filter design weak point is to insert loss, sensitivity is low, the wave band that receives processing signals is narrow, the element radiating difference causes working life short, especially for the signal of different-waveband, only adopt the filter process of a structure, it is big loss to occur inserting, sensitivity is low, the problem that heat radiation is uneven.When the power of product is big more, when the element heating amount is big more, just need electronic component to adopt particular design to dispel the heat; Existing bounce frequency filter small product size is big, and the wave band of processing signals is single, and manufacturing cost is higher, poor reliability.
Summary of the invention
The embodiment of the invention provides a kind of bounce frequency filter with multi-band selection function, and broadband signal is had good filter effect, integrated level height, stable performance.
The embodiment of the invention provides a kind of bounce frequency filter with multi-band selection function, be included in the input waveband selection radio-frequency (RF) switch, segmentation filter, the output waveband selection radio-frequency (RF) switch that connect successively in the thermal conductive shell, and be connected, and control the logic control circuit of described bounce frequency filter work with described input waveband selection radio-frequency (RF) switch, segmentation filter, output waveband selection radio-frequency (RF) switch; Described segmentation filter comprises the cavity body filter of at least two different-wavebands, can select different described cavity body filters to carry out signal processing according to the different frequency band signal of input.
Further, described segmentation filter comprises the cavity body filter of three wave bands: wherein the cavity body filter of first wave band processing frequency is the signal of 30Mhz～90Mhz, adopts the spiral cavity structure; It is the signal of 90Mhz～225Mhz that the cavity body filter of second wave band is handled frequency, adopts the quarter-wave cavity body structure; It is the signal of 225Mhz～512Mhz that the cavity body filter of triband is handled frequency, adopts the quarter-wave cavity body structure.The cavity body filter of described first wave band adopts the spiral cavity resonator; Described second and the cavity body filter of triband all adopt the quarter-wave cavity resonator.
The described cavity body filter of different-waveband comprises heat conduction cavity, analog circuit unit, digital control circuit plate respectively; Described analog circuit unit comprises at least two resonance modules, a switching diode array circuit, a high-voltage drive, connect by coupler between a plurality of described resonance modules, a plurality of described resonance modules are connected with described digital control circuit plate by described switching diode array circuit, high-voltage drive respectively.
As a kind of execution mode, described analog circuit unit comprises two resonance modules, and each described resonance modules is connected to form by resonator and impedance matching box; Connect by coupler between the resonator of two described resonance modules, the resonator of two described resonance modules is connected with the digital control circuit plate by described switching diode array circuit, high-voltage drive respectively successively; Signal is from the impedance matching box end input of a described resonance modules, from the impedance matching box end output of another described resonance modules.
Further, between described switching diode array circuit and the described high-voltage drive also coupling be connected with and be used for tuning choke.
Further, described thermal conductive shell and heat conduction cavity all are the metal heat-conducting housing, and described analog circuit unit is separately positioned in the different heat conduction cavitys with the digital control circuit plate.
Further, be to increase radiating effect, the switching diode in the described switching diode array circuit be close to or be welded on described heat conduction cavity inboard or with heat-conducting plate that described thermal conductive shell links to each other on.
Further, the switching diode in the described switching diode array circuit adopts withstand voltage height, the little switching diode of internal resistance; The CMOS triode that described high-voltage drive adopts withstand voltage anti-stream parameter and frequency hopping speed parameter to be complementary according to the filtering demand.
Adopt the present invention to have the bounce frequency filter of multi-band selection function, by adopting new modularized circuit structural design, signal for the different frequency wave band is divided into multichannel, adopt the different cavity body filter of structure to handle, this had both reduced the insertion loss, improve sensitivity, prevented electromagnetic interference between the internal electronic element again.
Can carry out radio-frequency (RF) switch control automatically to the different-waveband signal, subrane inserts corresponding cavity body filter and handles, and like this broadband signal is had good filter effect.Three band frequency traffic filters are synthesized the bounce frequency filter that has multi-band selection function at, and product integrated level height reduces cost, stable performance.
Under the high power work environment, the switching diode that caloric value is big be close to or be welded on described heat conduction shell inboard or with heat-conducting plate that thermal conductive shell links to each other on.Can further strengthen radiating rate like this.
Description of drawings
Fig. 1 is the structural representation block diagram of the bounce frequency filter with multi-band selection function that provides of the embodiment of the invention;
Fig. 2 is the bounce frequency filter schematic appearance with multi-band selection function that the embodiment of the invention provides;
Fig. 3 is the cavity body filter structural representation block diagram in the bounce frequency filter that provides of the embodiment of the invention one;
Fig. 4 is the cavity body filter equivalent circuit diagram in the bounce frequency filter that provides of the embodiment of the invention one;
Fig. 5 is the cavity body filter structural representation block diagram in the bounce frequency filter that provides of the embodiment of the invention two.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the invention provides a kind of bounce frequency filter with multi-band selection function, be included in the input waveband selection radio-frequency (RF) switch 100, segmentation filter 200, the output waveband selection radio-frequency (RF) switch 300 that connect successively in the thermal conductive shell, and is connected, and control the logic control circuit 400 that their are worked with described input waveband selection radio-frequency (RF) switch, segmentation filter, output waveband selection radio-frequency (RF) switch; Described segmentation filter comprises the cavity body filter of at least two different-wavebands, can select different described cavity body filters to carry out signal processing according to the different frequency band signal of input.
As embodiment one, described segmentation filter comprises the cavity body filter of three wave bands: wherein the cavity body filter of first wave band processing frequency is the signal of 30Mhz～90Mhz, adopts the spiral cavity structure; It is the signal of 90Mhz～225Mhz that the cavity body filter of second wave band is handled frequency, adopts the quarter-wave cavity body structure; It is the signal of 225Mhz～512Mhz that the cavity body filter of triband is handled frequency, adopts the quarter-wave cavity body structure.Each segmentation filter 200 produces control signal by Digital Logic control circuit 400, and the forward and reverse biasing of control PIN diode and capacitor array realizes subrane signal processing and adjusting.
The cavity body filter of described first wave band adopts the spiral cavity resonator; Described second and the cavity body filter of triband all adopt the quarter-wave cavity resonator.
Fig. 2 is the schematic appearance that the present invention has the bounce frequency filter of multi-band selection function, and the bounce frequency filter among the figure is divided into three chamber modules, i.e. three cavity body filters are handled the frequency signal of three wave bands respectively.Described bounce frequency filter also has a master control chamber module to have a plurality of interfaces, and a total input port RFIN and a total output port RFOUT are wherein arranged.
As shown in Figure 3, the described cavity body filter of different-waveband comprises heat conduction cavity, analog circuit unit, digital control circuit plate respectively.In the heat conduction cavity of each individual cavity filter, be provided with described analog circuit unit, digital control circuit plate 40, described analog circuit unit comprises at least two resonance modules 10, switching diode array circuit 20, a high-voltage drive 30, connect by coupler 50 between a plurality of described resonance modules, a plurality of described resonance modules are connected with described digital control circuit plate by described switching diode array circuit, high-voltage drive respectively.
Such as for the quarter-wave cavity resonator, described analog circuit unit wherein comprises two resonance modules 10, i.e. double tuned circuit, and each described resonance modules 10 is connected to form by resonator 12 and impedance matching box 11; Connect by coupler 50 between the resonator of two described resonance modules, the resonator 12 of two described resonance modules is connected with digital control circuit plate 40 by described switching diode array circuit 20, high-voltage drive 30 respectively successively; Signal is from the impedance matching box end input of a described resonance modules, from the impedance matching box end output of another described resonance modules.
As shown in Figure 4, be the cavity body filter equivalent circuit diagram of Fig. 3, the resistance 1 of two symmetries is impedance matching box.Electronic switch 2 is equivalent to switching diode, receives the control signal of digital control circuit plate, controls the frequency hopping filtering of each resonance branch road.Lead or resistance 3 are coupler, connect the resonator of two symmetrical resonance modules.
As the execution mode after a kind of improve of Fig. 3, as shown in Figure 5, in described cavity body filter, also mate between described switching diode array circuit and the described high-voltage drive to be connected with and be used for tuning choke 60.
For improving radiating effect, thermal conductive shell described in the foregoing description and heat conduction cavity all are the metal heat-conducting housing, the switching diode in the described switching diode array circuit be close to or be welded on described heat conduction cavity inboard or with heat-conducting plate that described thermal conductive shell links to each other on.Described analog circuit unit is separately positioned in the different heat conduction cavitys with the digital control circuit plate.This had both prevented electromagnetic interference between the internal electronic element, accelerated heat radiation again.
Switching diode in the described switching diode array circuit adopts withstand voltage height, the little switching diode of internal resistance; The CMOS triode that described high-voltage drive adopts withstand voltage anti-stream parameter and frequency hopping speed parameter to be complementary according to the filtering demand.Number such as switching diode is 10, is divided into 5 one group and is connected by heat-conducting plate with described one of them resonator.Described high-voltage drive is taken all factors into consideration and is selected the big and fast CMOS triode of frequency hopping of current/voltage for use according to the CMOS triode that the filtering demand adopts withstand voltage anti-stream parameter and frequency hopping speed parameter to be complementary.The 3DB relative bandwidth of the bounce frequency filter of described multi-band selection function remains on about 10% of signal sum frequency, and the insertion loss is low, and centre frequency ± 10% attenuation outside a channel is greater than 11DB.
Need to prove; above-mentioned bounce frequency filter with multi-band selection function also can comprise the cavity body filter of two wave bands; or the cavity body filter of four wave bands; according to using and design needs manufacturing, but its internal structure and operation principle all belong to the present invention within the protection range of public technology scheme.Described analog circuit unit also can comprise a plurality of resonance modules, connect by coupler between a plurality of described resonance modules, a plurality of described resonance modules are connected with the digital control circuit plate by described switching diode array circuit, high-voltage drive respectively, its operation principle is the same with the bounce frequency filter that only comprises two resonance modules, here no longer repeat specification.
The above is a preferred implementation of the present invention; certainly can not limit the present invention's interest field with this; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvement and change, these improvement and change also are considered as protection scope of the present invention.
Claims (9)
1. bounce frequency filter with multi-band selection function, it is characterized in that, be included in the input waveband selection radio-frequency (RF) switch, segmentation filter, the output waveband selection radio-frequency (RF) switch that connect successively in the thermal conductive shell, and the logic control circuit of controlling described bounce frequency filter work; Described segmentation filter comprises the cavity body filter of at least two different-wavebands, can select different described cavity body filters to carry out signal processing according to the different frequency band signal of input.
2. according to the described bounce frequency filter of claim 1 with multi-band selection function, it is characterized in that, described segmentation filter comprises the cavity body filter of three wave bands: wherein the cavity body filter of first wave band processing frequency is the signal of 30Mhz～90Mhz, adopts the spiral cavity structure; It is the signal of 90Mhz～225Mhz that the cavity body filter of second wave band is handled frequency, adopts the quarter-wave cavity body structure; It is the signal of 225Mhz～512Mhz that the cavity body filter of triband is handled frequency, adopts the quarter-wave cavity body structure.
3. according to the described bounce frequency filter of claim 1, it is characterized in that the described cavity body filter of different-waveband comprises heat conduction cavity, analog circuit unit, digital control circuit plate respectively with multi-band selection function; Described analog circuit unit comprises at least two resonance modules, a switching diode array circuit, a high-voltage drive, connect by coupler between a plurality of described resonance modules, a plurality of described resonance modules are connected with described digital control circuit plate by described switching diode array circuit, high-voltage drive respectively.
4. according to the described bounce frequency filter with multi-band selection function of claim 3, it is characterized in that described analog circuit unit comprises two resonance modules, each described resonance modules is connected to form by resonator and impedance matching box; Connect by coupler between the resonator of two described resonance modules, the resonator of two described resonance modules is connected with the digital control circuit plate by described switching diode array circuit, high-voltage drive respectively successively; Signal is from the impedance matching box end input of a described resonance modules, from the impedance matching box end output of another described resonance modules.
5. according to claim 2 or 4 described bounce frequency filters, it is characterized in that the cavity body filter of described first wave band adopts the spiral cavity resonator with multi-band selection function; Described second and the cavity body filter of triband all adopt the quarter-wave cavity resonator.
6. according to claim 3 or 4 described bounce frequency filters, it is characterized in that with multi-band selection function, between described switching diode array circuit and the described high-voltage drive also coupling be connected with and be used for tuning choke.
7. according to the described bounce frequency filter of claim 3 with multi-band selection function, it is characterized in that, described thermal conductive shell and heat conduction cavity all are the metal heat-conducting housing, and described analog circuit unit is separately positioned in the different heat conduction cavitys with the digital control circuit plate.
8. according to claim 3 or 4 described bounce frequency filters with multi-band selection function, it is characterized in that, the switching diode in the described switching diode array circuit be close to or be welded on described heat conduction cavity inboard or with heat-conducting plate that described thermal conductive shell links to each other on.
9. according to claim 3 or 4 described bounce frequency filters, it is characterized in that the switching diode in the described switching diode array circuit adopts withstand voltage height, the little switching diode of internal resistance with multi-band selection function; The CMOS triode that described high-voltage drive adopts withstand voltage anti-stream parameter and frequency hopping speed parameter to be complementary according to the filtering demand.
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| CN 201010142821 CN101826851A (en) | 2010-04-02 | 2010-04-02 | Frequency-hopping filter with multi-band selection function |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152003A (en) * | 2013-01-18 | 2013-06-12 | 西安电子科技大学 | Ultra-wide band electrically-tunable band-pass filter set and frequency control method thereof |
| WO2013170826A2 (en) * | 2012-10-09 | 2013-11-21 | 中兴通讯股份有限公司 | Multiband antenna tuned circuit and wireless terminal |
| CN104767551A (en) * | 2014-01-07 | 2015-07-08 | 熊猫电子集团有限公司 | Wide frequency band RF signal on-and-off switching module |
| CN105322917A (en) * | 2015-11-20 | 2016-02-10 | 南京熊猫汉达科技有限公司 | A 30MHz-512MHz wide frequency band frequency hopping filter |
| CN107357350A (en) * | 2017-06-27 | 2017-11-17 | 浙江大学 | Improve the acousto-optic modulator drive system of acousto-optic modulator fuel factor |
| CN111865263A (en) * | 2020-07-15 | 2020-10-30 | 武汉博畅通信设备有限责任公司 | Double-circuit numerical control frequency hopping trapper |
| CN112003586A (en) * | 2020-08-24 | 2020-11-27 | 武汉博畅通信设备有限责任公司 | Four-in-one co-site filter |
| CN112038736A (en) * | 2020-08-24 | 2020-12-04 | 武汉博畅通信设备有限责任公司 | Radio frequency filter and radio frequency control system |
| CN112311356A (en) * | 2020-11-19 | 2021-02-02 | 成都菲斯洛克电子技术有限公司 | Miniaturized GHz high-power antenna front-end device group |
| CN112543012A (en) * | 2020-12-09 | 2021-03-23 | 诺思(天津)微系统有限责任公司 | Filter circuit, duplexer, and communication apparatus |
| CN113364427A (en) * | 2021-06-29 | 2021-09-07 | 广东圣大通信有限公司 | Broadband frequency hopping filter |
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| CN101645700A (en) * | 2009-06-16 | 2010-02-10 | 广州市圣大电子有限公司 | Bounce frequency filter |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013170826A2 (en) * | 2012-10-09 | 2013-11-21 | 中兴通讯股份有限公司 | Multiband antenna tuned circuit and wireless terminal |
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| CN103152003A (en) * | 2013-01-18 | 2013-06-12 | 西安电子科技大学 | Ultra-wide band electrically-tunable band-pass filter set and frequency control method thereof |
| CN103152003B (en) * | 2013-01-18 | 2016-02-10 | 西安电子科技大学 | Ultra wide band electrically tunable band-pass filter group and control method for frequency thereof |
| CN104767551A (en) * | 2014-01-07 | 2015-07-08 | 熊猫电子集团有限公司 | Wide frequency band RF signal on-and-off switching module |
| CN105322917A (en) * | 2015-11-20 | 2016-02-10 | 南京熊猫汉达科技有限公司 | A 30MHz-512MHz wide frequency band frequency hopping filter |
| CN107357350A (en) * | 2017-06-27 | 2017-11-17 | 浙江大学 | Improve the acousto-optic modulator drive system of acousto-optic modulator fuel factor |
| CN107357350B (en) * | 2017-06-27 | 2018-10-12 | 浙江大学 | Improve the acousto-optic modulator drive system of acousto-optic modulator fuel factor |
| CN111865263A (en) * | 2020-07-15 | 2020-10-30 | 武汉博畅通信设备有限责任公司 | Double-circuit numerical control frequency hopping trapper |
| CN111865263B (en) * | 2020-07-15 | 2023-06-27 | 武汉博畅通信设备有限责任公司 | Double-circuit numerical control frequency hopping trapper |
| CN112003586A (en) * | 2020-08-24 | 2020-11-27 | 武汉博畅通信设备有限责任公司 | Four-in-one co-site filter |
| CN112038736A (en) * | 2020-08-24 | 2020-12-04 | 武汉博畅通信设备有限责任公司 | Radio frequency filter and radio frequency control system |
| CN112311356A (en) * | 2020-11-19 | 2021-02-02 | 成都菲斯洛克电子技术有限公司 | Miniaturized GHz high-power antenna front-end device group |
| CN112543012A (en) * | 2020-12-09 | 2021-03-23 | 诺思(天津)微系统有限责任公司 | Filter circuit, duplexer, and communication apparatus |
| CN113364427A (en) * | 2021-06-29 | 2021-09-07 | 广东圣大通信有限公司 | Broadband frequency hopping filter |
| CN113364427B (en) * | 2021-06-29 | 2021-12-31 | 广东圣大通信有限公司 | Broadband frequency hopping filter |
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Application publication date: 20100908 |