CN107910628A - Height suppresses duplexer - Google Patents
Height suppresses duplexer Download PDFInfo
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- CN107910628A CN107910628A CN201711039507.8A CN201711039507A CN107910628A CN 107910628 A CN107910628 A CN 107910628A CN 201711039507 A CN201711039507 A CN 201711039507A CN 107910628 A CN107910628 A CN 107910628A
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- resonator
- resonators
- duplexer
- tap line
- adjusting screw
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/20—Magic-T junctions
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Abstract
The present invention suppresses duplexer to be high, solves size that existing duplexer debugging needs to tear cover board adjustment the inside open, it is necessary to the problem of two duplexer series, volume is bigger, and loss and standing wave can all be deteriorated.Signal passes through the tap line of the 1st port（11）, be concatenated all the way the 1st, 2,4,5 resonators be connected with the 2nd port, the 2nd, 4 resonators be connected with the both ends of the 3rd resonator, tap line（11）Another way be concatenated the 6th, 7,9,10 resonators be connected with the 3rd port, the 7th, 9 resonators and the 8th resonator（8）Both ends connection, cavity（14）Inside there are two the in parallel the 1st, 2 grooves and tap line open slot（17）Connection, the described 1st, the periphery of 2 grooves be connected in series by the equal circular arc of some radiuses, the 1st 10 resonator and the resonator being connected with tap line（19）Respectively positioned at the center of circle of the equal circular arc of some radiuses, cavity（14）Cover board（18）On have adjusting screw.
Description
Technical field
The present invention realizes that the device of frequency selection function is related with transceiver antenna.
Background technology
Duplexer is incorporated to receiving by signal hoe by antenna, again launches signal by antenna, it is desirable to connect
Sending and receiving transmit-receive radio road each completes its function without influencing each other, and receives, influencing each other to depend primarily between radiating circuit connects
The suppression between transmitting is received, suppression more high anti-jamming capacity is strong, and it is left mutually to suppress most 110dB in conventional communication system
It is right all higher at last.But with the development of technology and the needs of business, mutual suppression requirement is also just higher,
The existing duplexer routinely suppressed has been unable to meet existing system requirement.Existing duplexer mainly has following shortcoming：
1. it is larger to influence each other between duplexer reception and transmitting, prevent suppression from improving；
2. when needing to tear the size inside cover board adjustment open when debugging runs into and suppresses inadequate, for the high suppression control for suppressing duplexer
It is completely inapplicable to make this method；
3. assembly technology is complicated, it is unfavorable for producing the high duplexer for suppressing class in batches；
4. pair suppressing the high system of some, single a duplexer cannot meet index request, just with two duplexer series sides
Formula, but this volume is bigger, and loss and standing wave can all be deteriorated.
The content of the invention
The object of the present invention is to provide a kind of simple in structure, assembling is easy, easy to adjust, the limit can be achieved suppress 150dB
High suppress duplexer.
What the present invention was realized in：
Height suppresses duplexer, and signal passes through the tap line 11 of the 1st port, the 1st, 2,4,5 resonators 1,2,4,5 being concatenated all the way
Be connected with the 2nd port, the 2nd, 4 resonators 2,4 are connected with the both ends of the 3rd resonator 3, the another way of tap line 11 be concatenated
6th, 7,9,10 resonators 6,7,9,10 are connected with the 3rd port, and the 7th, 9 resonators 7,9 are connected with the both ends of the 8th resonator 8, cavity
There are two the in parallel the 1st, 2 grooves to be connected with tap line open slot 17 in 14, the described 1st, the periphery of 2 grooves is by the equal circle of some radiuses
Arc is connected in series, the 1-10 resonators and with tap line connection resonator 19 respectively positioned at some radiuses it is equal
The center of circle of circular arc, has adjusting screw on the cover board 18 of cavity 14, the lower end of adjusting screw is in the described 1st, 2 grooves, the tune
Section screw lower end is located on above-mentioned adjacent resonators central junction line, and the angle for two tap lines 11 being connected with resonator 19 is
75o, cavity 14 is tightly connected with cover board 18 by trip bolt 12, and the 1st zero point 15 lower end of coupling adjusting screw is humorous positioned at the 2nd, 4
Shake device 2, on 4 central junction lines, the lower end of the 2nd zero point coupling adjusting screw is located at the 7th, 9 resonators 7, on 9 central junction lines.
1st, 2,3, the 3rd, 4,5 resonator centrals respectively in a triangular apex, the 6th, 7,8, the 7th, 8,9 resonators
Center is respectively in a triangular apex, and the 1st, 2 resonators, the resonator 19 that is connected with tap line is in a triangular apex
On, the 6th, 7 resonators, another resonator 19 for being connected with tap line is in a triangular apex.
The present invention will suppress to bring up to 150dB, and the signal for first having to reduce between reception, radiating circuit two-way is mutually dry
Disturb, this interference is likely to be from common port junction, it is also possible to be reception, the radiating circuit two-way interference of itself.For
Reduce the crosstalk at common port, receive, radiating circuit two-way will separate angle such as into 75 °, in addition receive, radiating circuit
Cavity 14 between two-way will add seal cover board 18 and be fastened by trip bolt 12, to prevent mutual crosstalk between two-way.
The duplexer for suppressing higher is not suitable for that traditional zero point mode, the structure after being realized according to circuit diagram
（As shown in Figure 3）.Because this structure just needs to dismantle cover board adjusting coupling disc 16 when suppressing inadequate, and is also not easy to protect
Card index disclosure satisfy that, debugging only repeatedly and then tear lid open, so very bothering.
The present invention has used a kind of new zero point transmission mode in order to meet the suppression of 150dB（As shown in Figure 4）,
When suppressing inadequate, just only needs adjust the 1st zero point coupling adjusting screw 15 according to the actual size that suppresses by outside.This
It is convenient that the mode of kind is adjusted, and is easy to debug.
The principle of the present invention figure realizes that structural approach is, resonator 2 plays a part of to produce frequency in cavity 14, then passes through
1st zero point couples adjusting screw 15 by signal transmission another resonator 4, is then formed and suppresses zero point.When the 1st zero point coupling
Close adjusting screw 15 be tuned in cavity 14 deeper coupling it is stronger, it is on the contrary then weak.
The high operation principle for suppressing duplexer of the invention（As shown in Figure 5）, behind port 1 dividing the signal into two-way forms
One duplexer.Resonator 1 wherein all the way is connected with resonator 3,4 respectively after being connected with resonator 2.Wherein resonator 2
One zero point transmission of formation is connected with resonator 4（As shown in Figure 4）, then it is connected again with resonator 5, it is defeated finally by port 2
Go out.The resonator 6 of another way is connected with resonator 8 respectively after being connected with resonator 7, resonator 9 connects.Wherein resonator 7
One zero point transmission of point formation is connected with resonator 9（As shown in Figure 4）, then it is connected again with resonator 10, finally by port 3
Output.
The achievable beneficial effect of the present invention：
The high of the present invention suppresses duplexer process, and assembling, is debugged very simple.Cover board 18 need not be torn open can just suppress to adjust,
Meet to suppress to require by exterior adjusting method.The volume of product greatly reduces, and more spaces have been conceded on complete machine simultaneously
And all big reduction of weight and cost.Even if volume reduces but other electrical performance indexes do not become, the index during use
It is reliable and stable.
The high duplexer that suppresses of the invention is to belong to pure passive device, is mainly made of cavity and resonator, 150dB high suppressions
The characteristics of system is realized using the band logical of cavity body structure, this structure is that power capacity is big, single-chamber body Q values are high, shielding properties
It is good.It is mainly coupled on next resonator by adjusting screw.This mode allows for whole 150dB high and suppresses double
The assembling of work device, debugging are all very convenient, and index is reliable and stable, greatly improves whole performance, is to existing convention duplexers
The a kind of of 110dB or so can only be by, which suppressing, breaks through.
Brief description of the drawings
Fig. 1 is circuit diagram of the present invention.
Fig. 2 is common port structural plan of the present invention figure.
Fig. 3 is traditional zero point mode figure.
Fig. 4 is the zero point transmission mode figure of the present invention.
Fig. 5 is block diagram of the present invention.
Fig. 6 is cavity of the present invention, covering plate structure figure.
Fig. 7 is sample measured curve figure.
Embodiment
Signal passes through the tap line of the 1st port, and the 1st, 2,4,5 resonators 1,2,4,5 being concatenated all the way and the 2nd port connect
Connect, the 2nd, 4 resonators 2,4 are connected with the both ends of the 3rd resonator 3, the another way of tap line be concatenated the 6th, 7,9,10 resonance
Device 6,7,9,10 is connected with the 3rd port, and the 7th, 9 resonators 7,9 are connected with the both ends of the 8th resonator 8, there is two parallel connections in cavity 14
The 1st, 2 grooves be connected with tap line open slot 17, the described 1st, the periphery of 2 grooves be connected in series by the equal circular arc of some radiuses and
Into the resonator 19 that the 1-10 resonators are connected with tap line is respectively positioned at the center of circle of the equal circular arc of some radiuses, chamber
There is adjusting screw 20,21 on the cover board 18 of body 14, the lower end of adjusting screw is located in the described 1st, 2 grooves, the groove in parallel with two
Circular arc the center of circle on the angle of two tap lines 11 that connects of resonator 19 be 75o, cavity 14 is with cover board 18 by fastening spiral shell
Nail 12 is tightly connected, adjusting screw lower end positioned at above-mentioned resonator between, the 1st zero point coupling adjusting screw 15 lower end is located at the 2nd,
Between 4 resonators 2,4, the lower end of the 2nd zero point coupling adjusting screw is between the 7th, 9 resonators 7,9.
The characteristics of this 150dB high, which suppresses duplexer, to be realized using the band logical of cavity body structure, this structure is that power holds
Amount is big, single-chamber body Q values are high, advantages of good shielding performance.It is also to be realized according to the principle of wave filter with this method, such as Fig. 1 institutes
Show, exponent number can be increased or decreased according to actual requirement.
The inductance L capacitances C in circuit and internal impedance R in resonator is connected in parallel produces frequency, wherein frequency
Scope is dependent on inductance L and capacitance C, and value is bigger, and frequency is lower, otherwise just high.In-band insertion loss is dependent on internal resistance R,
The higher insertion loss indicated that in passband of Q values of single-chamber internal resistance R is on the contrary bigger than normal with regard to small.Shunt inductance L capacitances C and internal resistance R is arrived
The part on ground is a resonance point, and two adjacent Frequency points are then transmitted increase work band by normalizing coupled mode
Width, the E above schematic diagram is capacitance normalized value.
Claims (2)
1. height suppresses duplexer, it is characterised in that signal passes through the tap line of the 1st port（11）, be concatenated all the way the 1st, 2,
4th, 5 resonator（1、2、4、5）It is connected with the 2nd port, the 2nd, 4 resonators（2、4）With the 3rd resonator（3）Both ends connection, tap
Line（11）Another way be concatenated the 6th, 7,9,10 resonators（6、7、9、10）It is connected with the 3rd port, the 7th, 9 resonators（7、
9）With the 8th resonator（8）Both ends connection, cavity（14）Inside there are two the in parallel the 1st, 2 grooves and tap line open slot（17）Connection,
Described 1st, the periphery of 2 grooves is connected in series by the equal circular arc of some radiuses, the 1-10 resonators and and tap line
The resonator of connection（19）Respectively positioned at the center of circle of the equal circular arc of some radiuses, cavity（14）Cover board（18）On have adjusting
Screw, in the described 1st, 2 grooves, the adjusting screw lower end is located at above-mentioned adjacent resonators center company for the lower end of adjusting screw
In wiring, with resonator（19）Two tap lines of connection（11）Angle be 75o, cavity（14）With cover board（18）By fastening spiral shell
Nail（12）It is tightly connected, the 1st zero point coupling adjusting screw（15）Lower end is located on the 2nd, 4 resonators (2,4) central junction line,
The lower end of 2nd zero point coupling adjusting screw is positioned at the 7th, 9 resonators（7、9）On central junction line.
High suppress duplexer 2. according to claim 1, it is characterised in that the 1st, 2,3, the 3rd, 4,5 resonator centrals point
Not in a triangular apex, the 6th, 7,8, the 7th, 8,9 resonator centrals respectively in a triangular apex, the 1st, 2 is humorous
Shake device, the resonator being connected with tap line（19）In a triangular apex, the 6th, 7 resonators, it is connected with tap line
Another resonator（19）In a triangular apex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039507.8A CN107910628B (en) | 2017-10-31 | 2017-10-31 | High-suppression duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039507.8A CN107910628B (en) | 2017-10-31 | 2017-10-31 | High-suppression duplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107910628A true CN107910628A (en) | 2018-04-13 |
| CN107910628B CN107910628B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711039507.8A Active CN107910628B (en) | 2017-10-31 | 2017-10-31 | High-suppression duplexer |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4890078A (en) * | 1988-04-12 | 1989-12-26 | Phase Devices Limited | Diplexer |
| CN202737065U (en) * | 2012-07-23 | 2013-02-13 | 陕西微康姆通信技术有限公司 | Diplexer |
| CN204361222U (en) * | 2015-01-20 | 2015-05-27 | 迈特通信设备（苏州）有限公司 | A kind of coaxial filter |
-
2017
- 2017-10-31 CN CN201711039507.8A patent/CN107910628B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4890078A (en) * | 1988-04-12 | 1989-12-26 | Phase Devices Limited | Diplexer |
| CN202737065U (en) * | 2012-07-23 | 2013-02-13 | 陕西微康姆通信技术有限公司 | Diplexer |
| CN204361222U (en) * | 2015-01-20 | 2015-05-27 | 迈特通信设备（苏州）有限公司 | A kind of coaxial filter |
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| Publication number | Publication date |
|---|---|
| CN107910628B (en) | 2021-01-05 |
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