CN101859921A - Microstrip broadband dual-frequency combining method and combiner - Google Patents
Microstrip broadband dual-frequency combining method and combiner Download PDFInfo
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- CN101859921A CN101859921A CN201010000291A CN201010000291A CN101859921A CN 101859921 A CN101859921 A CN 101859921A CN 201010000291 A CN201010000291 A CN 201010000291A CN 201010000291 A CN201010000291 A CN 201010000291A CN 101859921 A CN101859921 A CN 101859921A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000012811 non-conductive material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention discloses a microstrip broadband dual-frequency combining method. The method comprises the following steps of: preparing a metal box which comprises a cover plate and a box body; arranging a radio frequency input port A and a radio frequency input port B on one side of the box body; arranging a radio frequency output port on the other side of the box body; fixing a medium substrate in the box body; arranging a band-stop filter A and a band-stop filter B on the medium substrate; accessing a broadband signal A and a broadband signal B to be combined from the radio frequency input ports; making the broadband signal A pass through the radio frequency input port A; making the broadband signal B pass through the radio frequency input port B; performing filtering on the broadband signal A by using a microstrip transmission line A of the band-stop filter A; forming high out-band rejection on the broadband signal B in the range of the broadband signal B by using a 1/4 wavelength branch open-circuit line of the band-stop filter A; performing filtering on the broadband signal B by using a microstrip transmission line B of a band-stop filter B; and forming high out-band rejection on the broadband signal A in the range of the broadband signal A by using the 1/4 wavelength branch open-circuit line of the band-stop filter B.
Description
Technical field
The present invention relates to mixer, particularly a kind of microstrip broadband dual-frequency combining method and realizes the mixer of this method.
Background technology
In the prior art, development of Communication Technique is maked rapid progress, reduce the volume and weight of module, reduce system cost, the signal transmission form of the shared antenna-feedback system of a plurality of frequency ranges is widespread usage more and more, thus multiband close the important component part that the road bypass technology has developed into development communication technologies.
Traditional mixer generally is made up of two coaxial cavity band pass filters, this mixer relative bandwidth has only 20%, even it is lower, and because coaxial cavity filter is to use the mode of resonant cavity coupling cascade to realize, make the mixer complex structure that this mode realizes, the assembling and setting difficulty is big, and volume is big, the cost height, controllable degree is poor.
Summary of the invention
The objective of the invention is to, a kind of microstrip broadband dual-frequency combining method is provided, this method solution mixer assembling and setting difficulty is big by adopting, the problem of controllable degree difference.
The present invention also aims to provide a kind of microstrip broadband dual-frequency mixer of implementing this microstrip broadband dual-frequency combining method, this microstrip broadband dual-frequency mixer volume is little, simple in structure, assembling and setting is easy, and can satisfy the performance requirement of high relative bandwidth, effectively reduces the cost.
The technical scheme that the present invention is adopted for achieving the above object is:
A kind of microstrip broadband dual-frequency combining method, it may further comprise the steps:
(1) preparation one comprises the can of cover plate and box body, and this cover plate for sealing covers on the box body, and a side of described box body is provided with a rf inputs mouth A and a rf inputs mouth B, and relative opposite side is provided with a radio-frequency (RF) output end mouth on this box body;
(2) medium substrate of making by electrically non-conductive material at described box body internal fixation one, corresponding radio-frequency (RF) output end mouth one end is provided with a thick connection line that is connected with this radio-frequency (RF) output end mouth on the described medium substrate, corresponding described two rf inputs mouths, one end is provided with two parallel microstrip A and microstrip B on this medium substrate, microstrip A is connected with rf inputs mouth A, microstrip B is connected with rf inputs mouth B, and described two microstrip A are connected toward thick connection line one end extension and with this thick connection line with microstrip B;
(3) some 1/4 wavelength branch open-circuit lines are set respectively on the lateral surface of described two microstrip, described 1/4 wavelength branch open-circuit line is perpendicular to described microstrip, the 1/4 wavelength branch open-circuit line in described microstrip A and its outside constitutes band stop filter A, and the 1/4 wavelength branch open-circuit line in described microstrip B and its outside constitutes band stop filter B;
(4) broadband signal A and the broadband signal B that needs is closed the road inserted by the rf inputs mouth, wherein, broadband signal A is by rf inputs mouth A, broadband signal B is by rf inputs mouth B, broadband signal A carries out filtering by the microstrip A of band stop filter A, and the 1/4 wavelength branch open-circuit line of band stop filter A forms outside the high-band broadband signal B in the scope of broadband signal B and suppresses; Broadband signal B carries out filtering by the microstrip B of band stop filter B, the 1/4 wavelength branch open-circuit line of band stop filter B forms outside the high-band broadband signal A in the scope of broadband signal A and suppresses, and broadband signal A after treatment and broadband signal B are delivered to the radio-frequency (RF) output end mouth by thick connection line and close road output.
As a further improvement on the present invention, described band stop filter A or band stop filter B can change its pass-band performance and stopband range by the distance between quantity, wavelength, live width or adjacent two the 1/4 wavelength branch open-circuit lines of adjusting its 1/4 included wavelength branch open-circuit line.
A kind of mixer of implementing aforementioned microstrip broadband dual-frequency combining method, it comprises a can, described can comprises that a box body and can seal the cover plate that covers its top, one side of described box body is provided with a rf inputs mouth A and a rf inputs mouth B, relative opposite side is provided with a radio-frequency (RF) output end mouth on this box body, described box body internal fixation has a medium substrate of being made by electrically non-conductive material, described medium substrate is provided with a band stop filter A and a band stop filter B, described band stop filter A one end connects rf inputs mouth A, described band stop filter B one end connects rf inputs mouth B, and the other end of this band stop filter A and band stop filter B is connected described radio-frequency (RF) output end mouth.
As a further improvement on the present invention, described band stop filter A comprises a microstrip A and some 1/4 wavelength branch open-circuit lines that is arranged on its left side, described 1/4 wavelength branch open-circuit line is perpendicular to described microstrip A, this microstrip A one end is connected to described rf inputs mouth A, and its other end extends to the opposite side of box body.
As a further improvement on the present invention, described band stop filter B comprises a microstrip B and some 1/4 wavelength branch open-circuit lines that is arranged on its right side, described 1/4 wavelength branch open-circuit line is perpendicular to described microstrip B, this microstrip B one end is connected to described rf inputs mouth B, and its other end extends to the opposite side of box body.
As a further improvement on the present invention, described microstrip A is parallel with microstrip B.
As a further improvement on the present invention, also be provided with a thick connection line on the described medium substrate, this thick connection line is arranged on described radio-frequency (RF) output end mouth one side and is connected with it, and the other end of this thick connection line is connected with little tape input circuit B with described little tape input circuit A.
As a further improvement on the present invention, described band stop filter A or band stop filter B can change its pass-band performance and stopband range by the distance between quantity, wavelength, live width or adjacent two the 1/4 wavelength branch open-circuit lines of adjusting its 1/4 included wavelength branch open-circuit line.
As a further improvement on the present invention, described medium substrate by screw in described box body.
As a further improvement on the present invention, described cover plate in described box body top, forms the can of a sealing by screw.
Beneficial effect of the present invention is: mixer volume of the present invention is little, simple in structure, and assembling and setting is easy, and can satisfy the performance requirement of high relative bandwidth, effectively reduces cost, and the inventive method is implemented to make the assembling and setting of mixer easy, can degree of controlling height.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Description of drawings
Fig. 1 is structural representation Fig. 1 of the present invention.
Embodiment
Embodiment: see Fig. 1 and Fig. 2, a kind of microstrip broadband dual-frequency combining method of the present invention, it may further comprise the steps:
(1) preparation one comprises the can of cover plate 1 and box body 2, this cover plate 1 sealing covers on the box body 2, one side of described box body 2 is provided with a rf inputs mouth A21 and a rf inputs mouth B22, and relative opposite side is provided with a radio-frequency (RF) output end mouth 23 on this box body 2;
(2) medium substrate of making by electrically non-conductive material at described box body 2 internal fixation one 3, corresponding radio-frequency (RF) output end mouth 23 1 ends are provided with a thick connection line 31 that is connected with this radio-frequency (RF) output end mouth 23 on the described medium substrate 3, corresponding described two rf inputs mouths 21 on this medium substrate 3,22 1 ends are provided with two parallel microstrip A32 and microstrip B33, microstrip A32 is connected with rf inputs mouth A21, microstrip B33 is connected with rf inputs mouth B22, and described two microstrip A32 are connected toward thick connection line 31 1 ends extension and with this thick connection line 31 with microstrip B33;
(3) some 1/4 wavelength branch open-circuit lines 34 are set respectively on the lateral surface of described two microstrip 32,33, described 1/4 wavelength branch open-circuit line 34 is perpendicular to described microstrip 32,33, the 1/4 wavelength branch open-circuit line 34 in described microstrip A32 and its outside constitutes band stop filter A, and the 1/4 wavelength branch open-circuit line 34 in described microstrip B33 and its outside constitutes band stop filter B;
(4) broadband signal A and the broadband signal B that needs is closed the road inserted by rf inputs mouth 21,22, wherein, broadband signal A is by rf inputs mouth A21, broadband signal B is by rf inputs mouth B22, broadband signal A carries out filtering by the microstrip A32 of band stop filter A, and the 1/4 wavelength branch open-circuit line 34 of band stop filter A forms outside the high-band broadband signal B in the scope of broadband signal B and suppresses; Broadband signal B carries out filtering by the microstrip B33 of band stop filter B, the 1/4 wavelength branch open-circuit line 34 of band stop filter B forms outside the high-band broadband signal A in the scope of broadband signal A and suppresses, and broadband signal A after treatment and broadband signal B are delivered to radio-frequency (RF) output end mouth 23 by thick connection line 31 and close road output.
Described band stop filter A or band stop filter B can change its pass-band performance and stopband range by the distance between quantity, wavelength, live width or adjacent two the 1/4 wavelength branch open-circuit lines 34 of adjusting its 1/4 included wavelength branch open-circuit line 34.
A kind of mixer of implementing aforementioned microstrip broadband dual-frequency combining method, it comprises a can, described can comprises that a box body 2 and can seal the cover plate 1 that covers its top, one side of described box body 2 is provided with a rf inputs mouth A21 and a rf inputs mouth B22, relative opposite side is provided with a radio-frequency (RF) output end mouth 23 on this box body 2, described box body 2 internal fixation have a medium substrate 3 of being made by electrically non-conductive material, described medium substrate 3 is provided with a band stop filter A and a band stop filter B, described band stop filter A one end connects rf inputs mouth A21, described band stop filter B one end connects rf inputs mouth B22, and the other end of this band stop filter A and band stop filter B is connected described radio-frequency (RF) output end mouth 23.
Described band stop filter A comprises a microstrip A32 and some 1/4 wavelength branch open-circuit lines 34 that is arranged on its left side, described 1/4 wavelength branch open-circuit line 34 is perpendicular to described microstrip A32, this microstrip A32 one end is connected to described rf inputs mouth A21, and its other end extends to the opposite side of box body 2.
Described band stop filter B comprises a microstrip B33 and some 1/4 wavelength branch open-circuit lines 34 that is arranged on its right side, described 1/4 wavelength branch open-circuit line 34 is perpendicular to described microstrip B33, this microstrip B33 one end is connected to described rf inputs mouth B22, and its other end extends to the opposite side of box body 2.
Described microstrip A21 is parallel with microstrip B22.
Also be provided with a thick connection line 31 on the described medium substrate 3, this thick connection line 31 is arranged on described radio-frequency (RF) output end mouth 23 1 sides and is connected with it, and the other end of this thick connection line 31 is connected with little tape input circuit B33 with described little tape input circuit A32.
Described band stop filter A or band stop filter B can change its pass-band performance and stopband range by the distance between quantity, wavelength, live width or adjacent two the 1/4 wavelength branch open-circuit lines 34 of adjusting its 1/4 included wavelength branch open-circuit line 34, thereby reach the purpose that whole mixer electric property is adjusted, to satisfy the various index requests of mixer.
Described medium substrate 3 is fixed in the described box body 2 by screw 4.Described cover plate 1 is fixed in described box body 2 tops by screw 4, forms the can of a sealing.
The microstrip broadband dual-frequency mixer that utilizes the present embodiment mode to realize, not only relative bandwidth can reach more than 30%, exceeds the relative bandwidth of traditional double frequency filter.And volume is little, and is simple in structure and with low cost, provides a kind of simple and practical solution for double frequency closes the road system.
As described in the embodiment of the invention, with same or analogous other microstrip broadband dual-frequency combining method of the present invention and mixer, all in protection scope of the present invention.
Claims (10)
1. microstrip broadband dual-frequency combining method is characterized in that it may further comprise the steps:
(1) preparation one comprises the can of cover plate and box body, and this cover plate for sealing covers on the box body, and a side of described box body is provided with a rf inputs mouth A and a rf inputs mouth B, and relative opposite side is provided with a radio-frequency (RF) output end mouth on this box body;
(2) medium substrate of making by electrically non-conductive material at described box body internal fixation one, corresponding radio-frequency (RF) output end mouth one end is provided with a thick connection line that is connected with this radio-frequency (RF) output end mouth on the described medium substrate, corresponding described two rf inputs mouths, one end is provided with two parallel microstrip A and microstrip B on this medium substrate, microstrip A is connected with rf inputs mouth A, microstrip B is connected with rf inputs mouth B, and described two microstrip A are connected toward thick connection line one end extension and with this thick connection line with microstrip B;
(3) some 1/4 wavelength branch open-circuit lines are set respectively on the lateral surface of described two microstrip, described 1/4 wavelength branch open-circuit line is perpendicular to described microstrip, the 1/4 wavelength branch open-circuit line in described microstrip A and its outside constitutes band stop filter A, and the 1/4 wavelength branch open-circuit line in described microstrip B and its outside constitutes band stop filter B;
(4) broadband signal A and the broadband signal B that needs is closed the road inserted by the rf inputs mouth, wherein, broadband signal A is by rf inputs mouth A, broadband signal B is by rf inputs mouth B, broadband signal A carries out filtering by the microstrip A of band stop filter A, and the 1/4 wavelength branch open-circuit line of band stop filter A forms outside the high-band broadband signal B in the scope of broadband signal B and suppresses; Broadband signal B carries out filtering by the microstrip B of band stop filter B, the 1/4 wavelength branch open-circuit line of band stop filter B forms outside the high-band broadband signal A in the scope of broadband signal A and suppresses, and broadband signal A after treatment and broadband signal B are delivered to the radio-frequency (RF) output end mouth by thick connection line and close road output.
2. microstrip broadband dual-frequency combining method according to claim 1, it is characterized in that described band stop filter A or band stop filter B can change its pass-band performance and stopband range by the distance between quantity, wavelength, live width or adjacent two the 1/4 wavelength branch open-circuit lines of adjusting its 1/4 included wavelength branch open-circuit line.
3. mixer of implementing the described microstrip broadband dual-frequency combining method of claim 1, it comprises a can, described can comprises that a box body and can seal the cover plate that covers its top, it is characterized in that: a side of described box body is provided with a rf inputs mouth A and a rf inputs mouth B, relative opposite side is provided with a radio-frequency (RF) output end mouth on this box body, described box body internal fixation has a medium substrate of being made by electrically non-conductive material, described medium substrate is provided with a band stop filter A and a band stop filter B, described band stop filter A one end connects rf inputs mouth A, described band stop filter B one end connects rf inputs mouth B, and the other end of this band stop filter A and band stop filter B is connected described radio-frequency (RF) output end mouth.
4. microstrip broadband dual-frequency mixer according to claim 3, it is characterized in that, described band stop filter A comprises a microstrip A and some 1/4 wavelength branch open-circuit lines that is arranged on its left side, described 1/4 wavelength branch open-circuit line is perpendicular to described microstrip A, this microstrip A one end is connected to described rf inputs mouth A, and its other end extends to the opposite side of box body.
5. microstrip broadband dual-frequency mixer according to claim 4, it is characterized in that, described band stop filter B comprises a microstrip B and some 1/4 wavelength branch open-circuit lines that is arranged on its right side, described 1/4 wavelength branch open-circuit line is perpendicular to described microstrip B, this microstrip B one end is connected to described rf inputs mouth B, and its other end extends to the opposite side of box body.
6. microstrip broadband dual-frequency mixer according to claim 5 is characterized in that described microstrip A is parallel with microstrip B.
7. microstrip broadband dual-frequency mixer according to claim 6, it is characterized in that, also be provided with a thick connection line on the described medium substrate, this thick connection line is arranged on described radio-frequency (RF) output end mouth one side and is connected with it, and the other end of this thick connection line is connected with little tape input circuit B with described little tape input circuit A.
8. microstrip broadband dual-frequency mixer according to claim 7, it is characterized in that described band stop filter A or band stop filter B can change its pass-band performance and stopband range by the distance between quantity, wavelength, live width or adjacent two the 1/4 wavelength branch open-circuit lines of adjusting its 1/4 included wavelength branch open-circuit line.
9. microstrip broadband dual-frequency mixer according to claim 3 is characterized in that, described medium substrate by screw in described box body.
10. microstrip broadband dual-frequency mixer according to claim 3 is characterized in that, described cover plate in described box body top, forms the can of a sealing by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010000291 CN101859921B (en) | 2010-01-07 | 2010-01-07 | Microstrip broadband dual-frequency combining method and combiner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010000291 CN101859921B (en) | 2010-01-07 | 2010-01-07 | Microstrip broadband dual-frequency combining method and combiner |
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| Publication Number | Publication Date |
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| CN101859921A true CN101859921A (en) | 2010-10-13 |
| CN101859921B CN101859921B (en) | 2013-10-09 |
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| CN 201010000291 Expired - Fee Related CN101859921B (en) | 2010-01-07 | 2010-01-07 | Microstrip broadband dual-frequency combining method and combiner |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956547A (en) * | 2014-04-24 | 2014-07-30 | 江苏捷士通射频系统有限公司 | Integrated combiner |
| CN104821422A (en) * | 2015-05-12 | 2015-08-05 | 庄昆杰 | Low-loss high-isolation miniaturized double-broadband combining dividing filter |
| CN105914433A (en) * | 2016-05-05 | 2016-08-31 | 陈运涛 | Band-stop filter applied to broadband receiver |
| CN107453015A (en) * | 2017-07-26 | 2017-12-08 | 德清利维通讯科技股份有限公司 | A kind of microstrip broadband dual-frequency combiner |
| CN110828949A (en) * | 2020-01-07 | 2020-02-21 | 成都天大仪器股份有限公司 | Automatic debugging system of communication combiner |
| CN112751149A (en) * | 2020-12-17 | 2021-05-04 | 浙江水利水电学院 | Cavity filter |
| CN113540727A (en) * | 2021-06-30 | 2021-10-22 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Frequency selective microstrip shunt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664294Y (en) * | 2003-11-08 | 2004-12-15 | 摩比天线技术（深圳）有限公司 | A radio-frequency device having multiple-unit duplexer |
| CN201018482Y (en) * | 2007-03-12 | 2008-02-06 | 京信通信系统（中国）有限公司 | Dual-frequency combiner |
| CN101478071A (en) * | 2009-01-08 | 2009-07-08 | 京信通信系统（中国）有限公司 | High relative bandwidth dual frequency combiner |
-
2010
- 2010-01-07 CN CN 201010000291 patent/CN101859921B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2664294Y (en) * | 2003-11-08 | 2004-12-15 | 摩比天线技术（深圳）有限公司 | A radio-frequency device having multiple-unit duplexer |
| CN201018482Y (en) * | 2007-03-12 | 2008-02-06 | 京信通信系统（中国）有限公司 | Dual-frequency combiner |
| CN101478071A (en) * | 2009-01-08 | 2009-07-08 | 京信通信系统（中国）有限公司 | High relative bandwidth dual frequency combiner |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956547A (en) * | 2014-04-24 | 2014-07-30 | 江苏捷士通射频系统有限公司 | Integrated combiner |
| CN104821422A (en) * | 2015-05-12 | 2015-08-05 | 庄昆杰 | Low-loss high-isolation miniaturized double-broadband combining dividing filter |
| CN105914433A (en) * | 2016-05-05 | 2016-08-31 | 陈运涛 | Band-stop filter applied to broadband receiver |
| CN105914433B (en) * | 2016-05-05 | 2019-05-21 | 陈运涛 | A kind of bandstop filter applied to broadband receiver |
| CN107453015A (en) * | 2017-07-26 | 2017-12-08 | 德清利维通讯科技股份有限公司 | A kind of microstrip broadband dual-frequency combiner |
| CN110828949A (en) * | 2020-01-07 | 2020-02-21 | 成都天大仪器股份有限公司 | Automatic debugging system of communication combiner |
| CN110828949B (en) * | 2020-01-07 | 2020-04-14 | 成都天大仪器股份有限公司 | Automatic debugging system of communication combiner |
| CN112751149A (en) * | 2020-12-17 | 2021-05-04 | 浙江水利水电学院 | Cavity filter |
| CN112751149B (en) * | 2020-12-17 | 2022-02-22 | 浙江水利水电学院 | Cavity filter |
| CN113540727A (en) * | 2021-06-30 | 2021-10-22 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Frequency selective microstrip shunt |
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| Publication number | Publication date |
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| CN101859921B (en) | 2013-10-09 |
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