CN105958165A - Miniature high-isolation triple-band and six-way microstrip combiner - Google Patents
Miniature high-isolation triple-band and six-way microstrip combiner Download PDFInfo
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- CN105958165A CN105958165A CN201610404308.1A CN201610404308A CN105958165A CN 105958165 A CN105958165 A CN 105958165A CN 201610404308 A CN201610404308 A CN 201610404308A CN 105958165 A CN105958165 A CN 105958165A
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- frequency range
- combiner
- micro
- power splitter
- tunnel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2135—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using strip line filters
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Abstract
The invention discloses a miniature high-isolation triple-band and six-way microstrip combiner. The miniature high-isolation triple-band and six-way microstrip combiner is characterized by comprising a substrate, wherein copper coating the back surface of the substrate is grounded; a microstrip line is arranged on the front surface of the substrate and comprises filters and power dividers of three bands; an output feeder is shared by the filters of three bands at a port I; input feeders of the filters are connected with input ports of the power dividers of the same bands respectively; and two output ports are led out from the power divider of each band. A harmonic suppression theory technology is adopted by the filters of three bands, so that the isolation degree of the combiner is improved. One output feeder is shared by the three filters at the port I and an extra matching circuit is not needed, so that the size of the combiner is reduced. The three power dividers of different bands can feed electricity to different array antenna systems, so that the different array antenna systems can be combined.
Description
Technical field
The present invention relates to a kind of micro-strip combiner, be specifically related to a kind of miniaturization high isolation three frequency range six tunnel micro-strip
Combiner, belongs to microwave passive component technical field.
Background technology
Combiner is the key components in Modern Communication System transceiver, and its performance quality is directly closed
It it is whole communication system.
Traditional micro-strip combiner is all made up of wave filter and match circuit, but closes road for multifrequency micro-strip
For device, the design of match circuit will become particularly complicated, and the existence of match circuit too increases combiner
Size.For isolation, increase Out-of-band rejection generally by the exponent number increasing wave filter, improve and close
Road device isolation, but increase the exponent number of wave filter, the size of combiner can be increased equally.Therefore, small-sized
The performance indications such as change, high isolation become the important content of combiner research.
Under the background of array antenna research so heat, traditional single antenna performance cannot meet the most far away people
Demand, it is necessary to by a series of antenna elements composition array antenna realize index request.Therefore to not
The combiner carrying out closing road with the signal of frequency range array antenna system has good development prospect and application valency
Value.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of miniaturization high isolation three frequency
Duan Liulu micro-strip combiner, solves in prior art that micro-strip combiner volume is big, isolation effect is low and can only
A single aerial system carries out closing the technical problem on road.
For solving above-mentioned technical problem, the invention provides a kind of miniaturization high isolation three frequency range six tunnel micro-strip and close
Road device, is characterized in that, including substrate, copper ground connection is covered at the back side of substrate, and front is provided with microstripline, institute
Stating microstripline and include wave filter and the power splitter of three frequency ranges, the wave filter of described three frequency ranges is at port one
Place shares an output feeder, and the incoming feeder of each wave filter connects the input of the power splitter of same frequency range
Port, the power splitter of each frequency range draws 2 output ports.
Further, described wave filter is band filter.
Further, described wave filter is the Chebyshev filter of second order.
Further, described wave filter includes two phases being set in parallel between incoming feeder and output feeder
Same resonator, two resonators are individually placed at the high and low electric current density of input and output feeder line.
Further, described resonator is split-ring resonator, and two resonator opening parts are oppositely arranged.
Further, a length of 1/2nd wavelength of the microstrip line of described split-ring resonator.
Further, described power splitter is bisection Wilkinson power splitter.
Further, a length of quarter-wave of microstrip line of described Wilkinson power splitter, isolation resistance
Resistance is 100 Ω.
Compared with prior art, the present invention is reached to provide the benefit that: combiner of the present invention, because three
The wave filter of frequency range have employed harmonics restraint theory and technology, thus improves the isolation of combiner；The logical filter of band
Ripple device is to be coupling between input and output feeder line that constitute and three wave filter to share at port one by resonator
A piece output feeder, without extra match circuit, so reducing combiner size；And
Wilkinson power splitter can be array antenna feed, so combiner of the present invention can also be to different frequency range array
The signal of antenna system carries out closing road, has widened range of application.
Accompanying drawing explanation
Fig. 1 is the structural representation of combiner of the present invention；
Fig. 2 is the structural representation of the single filter of combiner of the present invention；
Fig. 3 is that combiner of the present invention is at 1G frequency range S parameter schematic diagram；
Fig. 4 is that combiner of the present invention is at 1.8G frequency range S parameter schematic diagram；
Fig. 5 is that combiner of the present invention is at 2.5G frequency range S parameter schematic diagram；
Fig. 6 is the alien frequencies interport isolation S parameter schematic diagram of combiner of the present invention.
Reference: 1, substrate；2, resonator one；3, resonator two；4, resonator three；5, resonance
Device four；6, resonator five；7, resonator six；8, power splitter one；9, power splitter two；10, power splitter
Three；11, port one；12, port two；13, port three；14, port four；15, port five；16、
Port six；17, port seven.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating
Technical scheme, and can not limit the scope of the invention with this.
As it is shown in figure 1, a kind of miniaturization high isolation three frequency range six tunnel micro-strip combiner of the present invention, its feature
It is that including substrate 1, copper ground connection is covered at the back side of substrate 1, and front is provided with microstripline, described microstripline
Including wave filter and the power splitter of three frequency ranges, the wave filter of described three frequency ranges shares one at port 1
Root output feeder, the incoming feeder of each wave filter connects the input port of the power splitter of same frequency range, often
The power splitter of individual frequency range draws 2 output ports.
Substrate 1 material selection Rogers (Rogers) 6010LM, size is
60.8mm*55mm*0.635mm.Substrate 1 front is the copper sheet microstrip structure of combiner, and the back side is grounding copper
Skin.
Wherein resonator 1 resonator 23 constitutes mid frequency is the band filter of 1G, resonator three
It is the band filter of 1.8G that 4 resonator 45 constitute mid frequency, resonator 56 resonator 67
Constituting mid frequency is the band filter of 2.5G.The exponent number of band filter is second order, band filter
Type function be Chebyshev, the bandwidth of operation of band filter is 20MHz.
The power splitter of three frequency ranges includes power splitter 1, power splitter 29 and power splitter 3 10, is second-class
Dividing Wilkinson power splitter, its mid frequency is respectively 1G, 1.8G, 2.5G, Wilkinson power splitter
The a length of quarter-wave of microstrip line.Each frequency range power splitter is connected on mid frequency therewith respectively corresponding
The input of band filter, port 2 12 and the output port that port 3 13 is power splitter 1, port
6 16 and output port that port 7 17 is power splitter 29, port 4 14 and port 5 15 are power splitter
The output port of 3 10.R1 is the isolation resistance of power splitter 1, and R2 is the isolation resistance of power splitter 29,
R3 is the isolation resistance of power splitter 3 10, and the resistance of isolation resistance R1, R2 and R3 is 100 Ω.Because
Wilkinson power splitter can be array antenna feed, and combiner the most of the present invention can be different to above three
The signal of the array antenna system of frequency range carries out closing road.
As in figure 2 it is shown, resonator is identical split-ring resonator, and two resonator opening parts set relatively
Put, a length of 1/2nd wavelength of its microstrip line.Coupled modes bag between resonator and input and output feeder line
Including magnetic coupling and electric coupling, for magnetic coupling, resonator should be placed at the high current density of feeder line, for
Electric coupling, resonator should be placed at the low current density of feeder line.Therefore designing band filter when,
Utilize harmonics restraint theoretical, two resonators be individually placed at the high and low electric current density of input and output feeder line,
Make the coupled modes in the harmonic frequency being coupling in passband between resonator and input and output feeder line contrary (i.e.
Individual be electric coupling another be magnetic coupling), parasitic passband will be effectively suppressed, thus improves combiner
Isolation.Constitute because band filter is coupling in input and output feeder line two ends by resonator, resonance
It is INDIRECT COUPLING between device and input and output feeder line rather than is joined directly together, therefore need not extra
Distribution road, thus reduce combiner size.In the present embodiment, the chi of the band filter of three frequency ranges
Very little as shown in table 1, optimal through the filter effect of this size of emulation testing,
The parameters of structural dimension value of table 1 wave filter
As it is shown on figure 3, be combiner of the present invention at 1G frequency range S parameter schematic diagram, in 1G working frequency range
Insertion loss is less than 4dB, and return loss is less than-10dB, with the isolation between frequency more than 15dB.
As shown in Figure 4, for combiner of the present invention at 1.8G frequency range S parameter schematic diagram, at 1.8G work frequency
Section is inserted into loss and is less than-10dB less than 5dB, return loss, with the isolation between frequency more than 20dB.
As it is shown in figure 5, be combiner of the present invention at 2.5G frequency range S parameter schematic diagram, at 2.5G work frequency
Section is inserted into loss and is less than-10dB less than 5dB, return loss, with the isolation between frequency more than 20dB.
As shown in Figure 6, for the alien frequencies interport isolation S parameter schematic diagram of combiner of the present invention, alien frequencies port
Between isolation more than 35dB.
The present invention is to apply more 1G, and 1.8G, 2.5G tri-is as a example by frequency range, it is also possible to arrange four by that analogy
The multipath microstrip combiner of the more multibands such as individual frequency range, five frequency ranges, belongs to protection scope of the present invention.
The above is only the preferred embodiment of the present invention, it is noted that common for the art
For technical staff, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and change
Type, these improve and modification also should be regarded as protection scope of the present invention.
Claims (8)
1. a miniaturization high isolation three frequency range six tunnel micro-strip combiner, it is characterized in that, including substrate, copper ground connection is covered at the back side of substrate, front is provided with microstripline, and described microstripline includes that wave filter and the power splitter of three frequency ranges, the wave filter of described three frequency ranges share an output feeder at port one, the incoming feeder of each wave filter connects the input port of the power splitter of same frequency range, and the power splitter of each frequency range draws 2 output ports.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 1 micro-strip combiner, is characterized in that, described wave filter is band filter.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 2 micro-strip combiner, is characterized in that, described wave filter is the Chebyshev filter of second order.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 1 micro-strip combiner, it is characterized in that, described wave filter includes two the identical resonators being set in parallel between incoming feeder and output feeder, and two resonators are individually placed at the high and low electric current density of input and output feeder line.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 4 micro-strip combiner, is characterized in that, described resonator is split-ring resonator, and two resonator opening parts are oppositely arranged.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 5 micro-strip combiner, is characterized in that, a length of 1/2nd wavelength of microstrip line of described split-ring resonator.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 1 micro-strip combiner, is characterized in that, described power splitter is bisection Wilkinson power splitter.
A kind of miniaturization high isolation three frequency range six tunnel the most according to claim 7 micro-strip combiner, is characterized in that, a length of quarter-wave of microstrip line of described Wilkinson power splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404308.1A CN105958165B (en) | 2016-06-08 | 2016-06-08 | A kind of three frequency range of miniaturization high isolation, six tunnel micro-strip combiner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404308.1A CN105958165B (en) | 2016-06-08 | 2016-06-08 | A kind of three frequency range of miniaturization high isolation, six tunnel micro-strip combiner |
Publications (2)
| Publication Number | Publication Date |
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| CN105958165A true CN105958165A (en) | 2016-09-21 |
| CN105958165B CN105958165B (en) | 2018-09-14 |
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| CN201610404308.1A Active CN105958165B (en) | 2016-06-08 | 2016-06-08 | A kind of three frequency range of miniaturization high isolation, six tunnel micro-strip combiner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972233A (en) * | 2017-05-10 | 2017-07-21 | 厦门大学 | A kind of four tunnel filtering type power splitters based on three line coupled structures |
| CN107732399A (en) * | 2017-10-25 | 2018-02-23 | 上海安费诺永亿通讯电子有限公司 | A kind of frequency four-port microstrip combiner of ultra wide band three for mobile radio system |
| CN111224207A (en) * | 2020-01-13 | 2020-06-02 | 电子科技大学 | Broadband power divider |
| CN111384534A (en) * | 2020-02-28 | 2020-07-07 | 南京智能高端装备产业研究院有限公司 | Three-way band-pass power division filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001006595A2 (en) * | 1999-07-21 | 2001-01-25 | Celletra Ltd. | Active antenna array configuration and control for cellular communication systems |
| CN101916898A (en) * | 2010-09-08 | 2010-12-15 | 江苏华之光微波科技有限公司 | Multi-circuit combiner and manufacturing method thereof |
-
2016
- 2016-06-08 CN CN201610404308.1A patent/CN105958165B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001006595A2 (en) * | 1999-07-21 | 2001-01-25 | Celletra Ltd. | Active antenna array configuration and control for cellular communication systems |
| CN101916898A (en) * | 2010-09-08 | 2010-12-15 | 江苏华之光微波科技有限公司 | Multi-circuit combiner and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972233A (en) * | 2017-05-10 | 2017-07-21 | 厦门大学 | A kind of four tunnel filtering type power splitters based on three line coupled structures |
| CN107732399A (en) * | 2017-10-25 | 2018-02-23 | 上海安费诺永亿通讯电子有限公司 | A kind of frequency four-port microstrip combiner of ultra wide band three for mobile radio system |
| CN111224207A (en) * | 2020-01-13 | 2020-06-02 | 电子科技大学 | Broadband power divider |
| CN111384534A (en) * | 2020-02-28 | 2020-07-07 | 南京智能高端装备产业研究院有限公司 | Three-way band-pass power division filter |
| CN111384534B (en) * | 2020-02-28 | 2021-08-27 | 南京智能高端装备产业研究院有限公司 | Three-way band-pass power division filter |
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| Publication number | Publication date |
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| CN105958165B (en) | 2018-09-14 |
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Address after: 210019 No. 219 Ningliu Road, Jiangbei New District, Nanjing City, Jiangsu Province Patentee after: NANJING University OF INFORMATION SCIENCE & TECHNOLOGY Address before: The Olympic Avenue in Jianye District of Nanjing city of Jiangsu Province, No. 69 210019 Patentee before: NANJING University OF INFORMATION SCIENCE & TECHNOLOGY |
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Effective date of registration: 20211208 Address after: 310000 No. 581, torch Avenue, Hangzhou, Zhejiang Patentee after: SUNWAVE COMMUNICATIONS Co.,Ltd. Address before: No. 219, ningliu Road, Jiangbei new district, Nanjing, Jiangsu 210019 Patentee before: NANJING University OF INFORMATION SCIENCE & TECHNOLOGY |