CN1862872A - Apparatus for implementing wireless wideband frequency combiner - Google Patents
Apparatus for implementing wireless wideband frequency combiner Download PDFInfo
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Abstract
This invention relates to device used to realize wireless broad band frequency combination circuit. The device includes amplitude phase adjuster and combination circuit device, the adjuster is used to amplitude phase adjusting process input each route carrier frequency signal reflection and transmission signal, and then the signals are sent to input terminal of the combination device and combined each carrier frequency signal is got at output terminal. Carrier wave combination insert loss can greatly reduced in this invention, and carrier wave power utilance can be improved. Baseband frequency hopping technique is also supported in this invention, and that is signal changes at frequency point can e combined processed. Device complex degree can be reduced to greatly reduce device cost and improve device working reliability.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of wireless wideband frequency combiner technology.
Background technology
In wireless communication network system, the mobile communication base station radio system is responsible for the reception and the emission of the wireless air signal of whole wireless network, be important, basic system in the wireless network, the working condition of this system will directly have influence on whole wireless network professional service quality will be provided.
In the radio system of mobile communication base station, for descending covering power that increases the base station and the quantity that reduces antenna feeder, usually adopt the carrier power path combining technique, this carrier power path combining technique is the power that a plurality of single carrier power amplifiers are exported to be carried out alien frequencies close road to an antennal interface, make each single sector of base station can use minimum antenna feeder quantity to support more carrier frequency, thereby reach the purpose of improving or increasing the base station covering power, improve the capacity of system.Therefore, the carrier power path combining technique is one of important technology in the radio system of mobile communication base station.
In present wireless communication network system, the carrier power path combining technique that adopts is the broadband path combining technique usually, and this technology can also be supported the RF hopping technology.The embodiment that described broadband path combining technique adopts at present usually has two kinds, will the specific implementation of two kinds of schemes be introduced below.
1, existing broadband path combining technique embodiment one is as follows:
Technology implementation scheme one is to adopt electric bridge broadband path combining technique to realize, is the technology that always adopts in the present wireless network, as shown in Figure 1, includes input port and output port and electric bridge.Carrier wave F1 and F2 are input in the electric bridge by two input ports of electric bridge respectively, in electric bridge, close then the road and by electric bridge close crossing/anti-phase mouthful output, and anti-phase mouthful of correspondence/close the crossing and connect load.The carrier power of F1 and F2 arrives antenna-feedback system in an output port output half-power separately of electric bridge, and second half power has consumed in load separately, and promptly power loss is in the electric bridge load.In addition, because the difference of electric bridge phase place, then corresponding carrier wave input port is also different, and for 90 degree electric bridges, carrier wave is respectively by the isolated port input, and for 180 degree electric bridge or magic T, carrier wave is imported from two balance ports.
The major defect of this embodiment one is that to close the road Insertion Loss bigger.In theory, in embodiment one, when the carrier wave of two road carrier waves unification road, the power loss in electric bridge is 3dB, and during four road carrier waves unification carrier wave, the power loss in electric bridge is 6dB.To pass by in the journey loss very big owing to close, and directly has influence on the descending covering power of base station.
2, existing broadband path combining technique embodiment two
Development along with communication, number of users sharply increases, the demand of the base station capacity being carried out dilatation is also more and more stronger, equipment manufacturers are difficult to bear power consumption for what evade that the power increase brings, just released the another embodiment that carrier wave closes the road, promptly released embodiment two: far control the electrically tunable filter path combining technique, specifically as shown in Figure 2, in the enforcement structure of this scheme, include input/output port, control interface, detection interface and complex devices such as filter and control appliance.
In Fig. 2, carrier wave F1 and F2 respectively from two input port input signals to filter, in filter, close the road then and by the output port outgoing carrier.In this structure, the loss of the incoming carrier of F1 and F2 depends primarily on the loss of filter, and this loss size is directly relevant with the carrier spacing, when big at interval, combination loss obviously reduces, and therefore, embodiment two can effectively reduce carrier wave and close the power loss of passing by in the journey.
Yet, in this scheme, because described filter only allows the frequency corresponding with it to pass through, make when F1 and F2 frequency change, the frequency that filter allows need be carried out tuning change, promptly need filter is regulated and control frequency that specifically can be by manual control break filter or utilize long-range electricity regulation and control system to add the frequency that detects control filters.
Therefore, in embodiment two since filter provide close road frequency relative fixed, make that it can not be random, fast to controlled function such as carrier frequency point switch, thereby make embodiment two can't support the baseband hopping technology; And when the carrier wave of GSM900MHz closed the road, the minimum frequency of filter closed path channels and must therefore, adopt this cavity body filter path combining technique also to reduce the service behaviour of base station to a certain extent greater than 600KHz usually at interval.
In addition, cavity body filter is integrated, and tunable filter closes complex devices such as road assembly, control interface, detection interface, makes device structure complexity, Heavy Weight, volume big, has reduced the reliability of equipment work, has improved the cost of equipment.
As can be seen, though existing technology can realize multi-transceiver combination output, existing various technology also come with some shortcomings from above two kinds of specific embodiments that provide, thereby can't realize well still that at present low-loss broadband closes the road processing.
Summary of the invention
The purpose of this invention is to provide a kind of device of realizing wireless wideband frequency combiner, can reduce carrier wave and close Insertion Loss in the road, improve the carrier power utilance, can also reduce the structure complexity that pipeline equipment is closed in the broadband simultaneously, and then reduce equipment cost.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of device of realizing wireless wideband frequency combiner, comprise that the width of cloth adjusts device and mixer spare mutually, the width of cloth is adjusted device mutually and is used for that the CF signal reflection that the road is waited to close in each road of input is carried out the width of cloth with transmission signals and adjusts processing mutually, reflection and transmission signals are adjusted the input port that is input to mixer spare after the processing respectively mutually through the width of cloth, and each CF signal after output port obtains merging.
The described width of cloth is adjusted device mutually and is comprised two ports, and the parameter that two ports are adjusted device mutually according to the width of cloth respectively reflects with the transmission width of cloth the signal of input adjusts processing mutually, reflected signal is returned by the port of signal input, adjusts the transmission signals of device through the width of cloth mutually and then exports by the another port.
Described device also comprises circulator, wait that each road CF signal of closing the road mutually adjusts device with second port transmission to the width of cloth by first port of circulator, for adjust mutually from the width of cloth signal that device reflects then second port by circulator and the 3rd port transmission to the input port of mixer spare.
Described mixer spare comprises: electric bridge, magic T, homophase mixer or anti-phase mixer.
When adopting 90 degree electric bridges as mixer spare, the width of cloth is adjusted device mutually and is carried out the width of cloth at the reflected signal of signal of input and adjust mutually and handle the first via signal that obtains, also the signal of importing is carried out the width of cloth simultaneously and adjust the second road signals of acquisition mutually with respect to first via phase lag signal or leading 90 degree, described first via signal is identical with the second road signal amplitude, the output after 90 degree electric bridges merge of the described first via signal and the second road signal.
When adopting 180 degree electric bridges or homophase mixer as mixer spare, the width of cloth is adjusted device mutually and is carried out the width of cloth at the reflected signal of signal of input and adjust mutually to handle and obtain first via signal, also the signal of importing is carried out the width of cloth simultaneously and adjust the acquisition the second road signal identical mutually with first via signal phase, described first via signal is identical with the second road signal amplitude, the output after 180 degree electric bridges or magic T or the merging of homophase mixer of the described first via signal and the second road signal.
When adopting 180 degree electric bridges or anti-phase mixer as mixer spare, the width of cloth is adjusted device mutually and is carried out the width of cloth at the reflection of signal of input and adjust mutually to handle and obtain first via signal, also the signal of importing is carried out the width of cloth simultaneously and adjust the acquisition the second road signal opposite mutually with first via signal phase, described first via signal is identical with the second road signal amplitude, the output after 180 degree electric bridges or magic T or the merging of anti-phase mixer of the described first via signal and the second road signal.
Comprise in the described device that a plurality of width of cloth adjust the carrier wave combiner unit that device and mixer spare are formed mutually, wherein, in a plurality of carrier wave combiner units, the road output of closing of subordinate's carrier wave combiner unit will be as the carrier wave input of waiting to close the road of higher level's carrier wave combiner unit.
Described carrier wave combiner unit also comprises two circulators.
In described a plurality of carrier wave combiner unit, any two carrier wave combiner units comprise other carrier wave combiner unit of at least two levels as the corresponding higher level's carrier wave combiner unit of subordinate's carrier wave combiner unit in described a plurality of carrier wave combiner units.
As seen from the above technical solution provided by the invention, technical scheme provided by the invention can make carrier wave close the road Insertion Loss significantly to reduce, greatly improve the hear rate of base station, improve the carrier power utilance, when the power output of identical machine top, significantly reduce the power output of power amplifier, or when the carrier power of power amplifier is constant, can greatly improve the covering power of base station down.The present invention simultaneously can also support the baseband hopping technology, promptly can close the road at the signal that frequency changes and handle.In addition, realization of the present invention can also reduce the weight and volume of equipment, reduces the complexity of equipment, thereby can reduce the cost that pipeline equipment is closed in the broadband greatly, improves the reliability of equipment work.
Description of drawings
Fig. 1 closes the embodiment on road for prior art adopts electric bridge;
Fig. 2 closes the embodiment on road for prior art adopts filter;
Fig. 3 is the apparatus structure schematic diagram of broadband provided by the invention mixer;
Fig. 4 is the operation principle schematic diagram of 90 degree electric bridges;
Fig. 5 is the operation principle schematic diagram of 180 degree electric bridges;
Fig. 6 is the operation principle schematic diagram of magic T;
Fig. 7 is the operation principle schematic diagram of homophase mixer;
Fig. 8 is the operation principle schematic diagram of anti-phase mixer;
Fig. 9 closes the specific implementation structural representation of road device for multichannel carrier.
Embodiment
Core concept of the present invention is when multichannel carrier closes road output, uses device provided by the invention and implementation method to come that wideband frequency is closed the road and handles, and reaches the road power output is closed in the low-loss of multichannel carrier.
More specifically say: the present invention is utilizing the width of cloth to adjust the broadband mixer that device, circulator, electric bridge (as 90 degree electric bridges or 180 degree electric bridges etc.) or other homophase mixer or anti-phase mixer etc. are formed mutually, the distribution of adjusting the amplitude of S parameter of device and phase place by the width of cloth mutually realizes that low-loss broadband closes road output, and described S parameter is the voltage amplitude phase.
The S parameter reflection that the width of cloth that the present invention is based on two-port is adjusted device D mutually distributes mutually with the transmission width of cloth, reaches alien frequencies or closes the road with low-loss frequently, closes the road and handles thereby can finish the broadband with less consumption.Therefore, the present invention can be very big Chengdu improve the power loss that present wireless base station RF front end carrier wave closes the road, improve the carrier power utilance, saves energy and reduce the base station volume.
For the present invention there being further understanding, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
The present invention is in specific implementation process, and as shown in Figure 3, concrete structure comprises: the width of cloth is adjusted device D, the first circulator H1, the second circulator H2 and mixer spare H composition mutually, and wherein, described mixer spare comprises electric bridge or other same/anti-phase mixer etc.
To the function of each function element among Fig. 3 be described below:
The described width of cloth is adjusted device D mutually and the signal part of input can be reflected as first via signal by input port, another part is exported as the second road signal by output port, wherein, the S parameter that the signal width of cloth of reflection and output is specifically adjusted device D by the width of cloth is mutually mutually determined, and require described first via signal identical with the second road signal amplitude, promptly the power of two paths of signals equates;
Consistent and the symmetry of the passage index of described circulator H1 and H2, its loss is 0dB, and the forward transmitted phase place is 0 degree between port, this supposition is the simplification for analytic process, and this supposition can not influence realization principle of the present invention;
Described mixer spare H is 90 degree electric bridges or 180 degree electric bridge or magic T or homophase mixer or anti-phase mixers; Wherein, described 90 degree electric bridges or 180 degree electric bridges are general-purpose device, and described homophase mixer is meant that two constant amplitude in-phase signals close the road addition, and described anti-phase mixer is meant that two constant amplitude inversion signals close the road addition.
In Fig. 3, port A and port B are used to import the signal of waiting to close the road, and wherein: port A is F1 carrier wave input port, and hypothesis port A to the phase place of circulator H1 port 6 be 0 degree; Port B is F2 carrier wave input port, and hypothesis port B to the phase place of device H2 port one 0 also be 0 degree.
Port C among Fig. 3 or L are that F1 and F2 carrier wave close the road output port, specifically need determine according to the phase of input signals characteristic.
In Fig. 3, be connected with E4 by transmission line E1, E2, E3 between each device, wherein: E1 is the radio-frequency transmission line of interface unit D port one in device H1 port 5, E2 is the radio-frequency transmission line of interface unit D port 2 and device H2 port 9, requires transmission line E1 and E2 equiphase length (being assumed to be the P degree) and low-loss; E3 is the radio-frequency transmission line of interface unit H port 3 and device H1 port 7, and E4 is the radio-frequency transmission line of interface unit H port 4 and device H2 port 8, and transmission line E3 and E4 require equiphase length (being assumed to be the Q degree) and low-loss in theory.
In structure shown in Figure 3, the S parameter that the width of cloth is adjusted device D mutually can be closed the road needs according to different actual carrier and be selected flexibly, and when the width of cloth that adopts different S parameters was adjusted device D mutually, concrete closed the road processing procedure with different, will be introduced respectively below:
(1) situation 1
The width of cloth is adjusted the following S parameter of having of device D width of cloth phase character mutually:
The F1 carrier wave inputs to the width of cloth by the port 6 of the first circulator H1, and to adjust the signal that reflects in the signal of port one of device D mutually be the first via signal S11 (back abbreviates " S11 " as) of F1 carrier wave, adjusting device D mutually through the width of cloth is the second road signal S21 (back abbreviates " S21 " as) of F1 carrier wave by the signal of its port 2 outputs, and, the S11 signal is input to the port 3 of mixer H through the first circulator H1, the S21 signal will be input to the port 4 of mixer spare H through the second circulator H2, wherein, S11=0.707/ φ=S21=0.707/ φ;
The F2 carrier wave inputs to the width of cloth by the port 9 of the second circulator H2, and to adjust the signal that reflects in the signal of port 2 of device D mutually be the first via signal S12 (back abbreviates " S12 " as) of F2 carrier wave, adjusting device D mutually through the width of cloth is the second road signal S22 (back abbreviates " S22 " as) of F2 carrier wave by the signal of its port one output, and, the S12 signal is input to the port 4 of mixer H through the second circulator H2, the S21 signal will be input to the port 3 of mixer spare H through the first circulator H1, wherein, S22=0.707/ θ=S12=0.707/ θ;
Above-mentioned S11 and S21, and S12 and S22 constitute one group of S parameter that the width of cloth is adjusted device D mutually, wherein, 0.707 be theoretical voltage coefficient (wherein, not containing thermal losses), and described φ and θ are phase angle, and its unit is: spend.
Be that S11 is mutually identical with the width of cloth of S21; S22 is mutually identical with the width of cloth of S12
In this case, with reference to shown in Figure 3, operation principle of the present invention is as follows:
When the F1 carrier frequency by port A through the first circulator H1 port, 6 forward transmitted behind port 5, arrive the width of cloth through transmission line E1 again and adjust device D port one mutually;
Because the reflection of device D is consistent with the transmission amplitude, the phase place unanimity, so after its reflected signal S11 arrives the first circulator H1 port 5 through E1, from port 7 outputs, to mixer spare H port 3, supposing does not have loss through transmission line E3, then the width of cloth of signal S11 (the 2P+ φ+Q) that is 0.707/ mutually;
In like manner, this F1 carrier wave is adjusted device D mutually through the width of cloth and is arrived the second circulator H2 port, 9 backs from port 8 outputs from port one to 2 transmission signals S21 through transmission line E2, be sent to mixer spare H port 4 through transmission line E4, supposing does not have loss, then the width of cloth of signal S21 (the 2P+ φ+Q) that is 0.707/ mutually;
Because it is identical with phase place with the S21 signal amplitude with 4 S11 to arrive mixer spare H port 3, this moment, mixer spare H can adopt homophase mixer or 180 degree electric bridges to close road output from port C; As shown in Figure 5, corresponding respectively 180 degree electric bridge port U and the V of port 3 and 4, corresponding respectively 180 degree electric bridge ∑ and port and the Δ ports of port C and L, the constant amplitude in-phase signal is respectively from port 3 and 4 inputs, and in ∑ and port C merging output, Δ difference port L connects power termination.
In this case, to close the road principle identical for close road principle and the F1 carrier wave of the F2 carrier wave among Fig. 3, so no longer describe in detail.
(2) situation 2
In this case, the width of cloth is adjusted device D mutually and is had following S parameter width of cloth phase character:
(1) port one of adjusting device D mutually by the width of cloth reflexes to the signal S11=0.707/ φ 1 of the port 3 of mixer spare H;
(2) port one of adjusting device D mutually by the width of cloth transfers to the signal S21=0.707/ φ 2 of the port 4 of mixer spare H again to port 2;
(3) port 2 of adjusting device D mutually by the width of cloth reflexes to the signal S22=0.707/ θ 1 of the port 4 of mixer spare H;
(4) port 2 of adjusting device D mutually by the width of cloth transfers to the signal S12=0.707/ θ 2 of the port 3 of mixer spare H again to port one;
Wherein:
| φ 2-φ 1|=180 degree+/-the δ degree, δ usually should be less than 20;
| θ 2-θ 1|=180 degree+/-the δ degree, δ usually should be less than 20;
0.707 be theoretical voltage coefficient (not containing thermal losses); φ 1/ φ 2, and θ 1/ θ 2 is phase angle, its unit is: degree.
And in this case, S11 is identical with the amplitude of S21, and phase place is opposite; S22 is opposite with the amplitude same phase of S12.
In this case, with reference to shown in Figure 3, realization principle of the present invention is as follows:
When the F1 carrier frequency passes through circulator H1 port 6 forward transmitted behind port 5 by port A, arrive device D port one through transmission line E1 again;
Because it is consistent with the transmission amplitude that the width of cloth is adjusted the reflection of device D mutually, phase place is opposite, therefore its reflected signal S11 arrives port 5 backs of the first annular device H1 from port 7 outputs through transmission line E1, through the port 3 of transmission line E3 to mixer spare H, supposing does not have loss, and then the width of cloth of signal S11 is 0.707/ (2P+ φ 1+Q) mutually;
In like manner, adjust device D mutually through the width of cloth and arrive port 9 backs of the second annular device H2 from port 8 outputs through transmission line E2 from the transmission signals S21 of port one to 2, and process transmission line E4 is sent to mixer spare H port 4, supposing does not have loss, and then the width of cloth of signal S21 is 0.707/ (2P+ φ 2+Q) mutually;
Phase place is opposite because the amplitude of the signal S21 of arrival mixer spare H port 3 and 4 equates, this moment, mixer spare H can adopt anti-phase mixer or 180 degree electric bridges to export from its port L; Still referring to shown in Figure 5, corresponding respectively 180 degree electric bridge port U and the V of port 3 and 4, corresponding respectively 180 degree electric bridge ∑ and port and the Δ difference ports of port C and L, constant amplitude inversion signal are respectively from port 3 and 4 inputs, Δ difference port L merges output, and ∑ and port C connect power termination.
Equally, in this case, at the F2 carrier wave close the road principle with at the F1 carrier wave to close the road principle identical, so no longer be described.
(3) situation 3
The width of cloth is adjusted device D mutually and is had following S parameter width of cloth phase character:
(1) port one of adjusting device D mutually by the width of cloth reflexes to the signal S11=0.707/ φ 1 of the port 3 of mixer spare H;
(2) port one of adjusting device D mutually by the width of cloth transfers to the signal S21=0.707/ φ 2 of the port 4 of mixer spare H again to port 2;
(3) port of adjusting device D mutually by the width of cloth reflexes to the signal S22=0.707/ θ 1 of the port 4 of mixer spare H;
(4) port 2 of adjusting device D mutually by the width of cloth transfers to the signal S12=0.707/ θ 2 of the port 3 of mixer spare H again to port one.
Wherein:
φ 2-φ 1=90 degree+/-the δ degree, δ usually should be less than 20;
θ 1-θ 2=90 degree+/-the δ degree, δ usually should be less than 20;
Be that signal S11 is more identical than the amplitude of S21, phase lag 90 degree; Signal S12 is more identical than the amplitude of S22, phase lag 90 degree.
In above-mentioned S parameter, 0.707 is theoretical voltage coefficient (not containing thermal losses); φ 1/ φ 2, and θ 1/ θ 2 is phase angle, its unit is: degree.
In this case, still with reference to shown in Figure 3, realization principle of the present invention is as follows:
When the F1 carrier frequency by port A through the first circulator H1 port, 6 forward transmitted behind port 5, arrive the port one that the width of cloth is adjusted device D mutually through transmission line E1 again;
Because it is consistent with the transmission amplitude that the width of cloth is adjusted the reflection of device D mutually, and the transmission phase place is than leading 90 degree of reflected phase will, therefore after its reflected signal S11 arrives the port 5 of the first circulator H1 through transmission line E1, from port 7 outputs, be sent to the port 3 of mixer spare H through transmission line E3, supposing does not have loss, and then the width of cloth of signal S11 is 0.707/ (2P+ φ 1+Q) mutually;
In like manner, after the transmission signals S21 that adjusts the port one to 2 of device D from the width of cloth mutually arrives the port 9 of the second circulator H2 through transmission line E2, from port 8 outputs, be sent to the port 4 of mixer spare H again through transmission line E4, supposing does not have loss, and then the width of cloth of S21 is 0.707/ (2P+ φ 2+Q) mutually, because φ 2-φ 1=90 degree, therefore, signal S11 and S21 arrive that the port 3 of mixer spare H and 4 amplitude equate and the phase place of port 3 than phase lag 90 degree of port 4.
When the F2 carrier frequency by port B through port one 0 forward transmitted of the second circulator H2 behind port 9, arrive the port 2 that the width of cloth is adjusted device D mutually through transmission line E2 again;
Because it is consistent with the transmission amplitude that the width of cloth is adjusted the reflection of port 2 of device D mutually, the transmission phase place is than reflective phase retarder 90 degree, therefore its reflected signal S22 arrives port 9 backs of the second circulator H2 from port 8 outputs through transmission line E2, be sent to the port 4 of mixer spare H again through transmission line E4, supposing does not have loss, and then the width of cloth of signal S22 is 0.707/ (2P+ θ 1+Q) mutually;
In like manner, the transmission signals S12 that adjusts the port 2 to 1 of device D from the width of cloth mutually arrives port 5 backs of the first circulator H1 from port 7 outputs through transmission line E1, be sent to the port 3 of mixer spare H through transmission line E3, suppose and do not have loss, then the width of cloth of signal S12 is 0.707/ (2P+ θ 2+Q) mutually, because θ 1-θ 2=90, then signal S22 and S12 arrive that mixer spare H port 3 equates with 4 amplitude and the phase place of port 3 than phase lag 90 degree (identical) of port 4 with F1.
Because F1, F2 arrives mixer spare H port 3 and has identical phase property with 4, this moment, mixer spare H can adopt 90 degree electric bridges merging to export from port C, referring to shown in Figure 4, corresponding respectively 90 degree electric bridge port x and the Y of port 3 and 4, corresponding respectively 90 degree electric bridge J port and the K ports of port C and L, port C output, port L connects power termination.
(4) situation 4
The width of cloth is adjusted device D mutually and is had following S parameter width of cloth phase character:
(1) port one of adjusting device D mutually by the width of cloth reflexes to the signal S11=0.707/ φ 1 of the port 3 of mixer spare H;
(2) port one of adjusting device D mutually by the width of cloth transfers to the signal S21=0.707/ φ 2 of the port 4 of mixer spare H again to port 2;
(3) port of adjusting device D mutually by the width of cloth reflexes to the signal S22=0.707/ θ 1 of the port 4 of mixer spare H;
(4) port 2 of adjusting device D mutually by the width of cloth transfers to the signal S12=0.707/ θ 2 of the port 3 of mixer spare H again to port one.
Wherein:
φ 2-φ 1=-90 degree+/-the δ degree, δ usually should be less than 20;
θ 1-θ 2=-90 degree+/-the δ degree, δ usually should be less than 20;
Be that S11 is more identical than the amplitude of S21, leading 90 degree of phase place; S12 is more identical than the amplitude of S22, leading 90 degree of phase place;
In above-mentioned S parameter, 0.707 is theoretical voltage coefficient (not containing thermal losses); φ 1/ φ 2, and θ 1/ θ 2 is phase angle, its unit is: degree.
In this case, referring to Fig. 3, realization principle of the present invention is as follows:
Similar with the realization principle of situation 3, difference is: F1, after the F2 carrier frequency is adjusted device D mutually through the width of cloth, the port 3 of its reflection and transmission signals arrival mixer spare H is different with 4 phase place, the port 3 that this moment, signal arrived mixer spare H equate with 4 amplitude and the phase place of port 3 than leading 90 degree of the phase place of port 4, promptly device H can adopt 90 degree electric bridges to merge to export from port L; Still referring to shown in Figure 4, port 3 and 4 is correspondence 90 degree electric bridge port x and Y respectively, corresponding respectively 90 degree electric bridge J port and the K ports of port C and L, and port L exports, and port C connects power termination.
As can be seen, under above-mentioned four kinds of situations, in the specific implementation provided by the invention, when the described width of cloth is adjusted device D mutually and is met 4 kinds of S parameter conditions, then can take out by the reflection and the transmission signals of circulator with two carrier waves, obtain the signals that two carrier waves meet 90 degree electric bridges, 180 degree electric bridges, magic T, homophase mixer or anti-phase mixer simultaneously and close travel permit spare, the structure of described 90 degree electric bridges, 180 degree electric bridges, magic T, homophase mixer or anti-phase mixer such as Fig. 4, Fig. 5, Fig. 6, Fig. 7 and shown in Figure 8.
And, among the present invention,, then need to control input phase if two homogenous frequency signals are closed the road, as long as the input phase unanimity, the frequency carrier wave closes the road just the present invention can be used for independently together, as is applied to power amplifier stack output etc.
Among the present invention, close the road device based on two-way carrier wave shown in Figure 3, can also realize that multichannel carrier closes the road device, suppose that adjusting device D, two circulators and mixer spare mutually by the width of cloth can form the carrier wave combiner unit, then multichannel carrier closes the road device and just comprises a plurality of two-way carrier wave combiner units simultaneously, wherein, in a plurality of two-way carrier wave combiner units, the carrier wave input that will wait to close the road as two of higher level's carrier wave combiner unit is exported on the road of closing of two subordinate's carrier wave combiner units.
Concrete implementation structure can be as shown in Figure 9, Fig. 9 closes the structure on road for four carrier waves of adjusting device D based on the width of cloth under the situation 1 mutually, carrier wave F1, F2, F3, F4 are respectively from port one, 2,3,4 inputs, closing the road after F1, the F2 processing through subordinate's carrier wave combiner unit exports from port J, F3, F4 export from port K through closing the road after the processing of another subordinate's carrier wave combiner unit, afterwards, import the port 5 and 6 of higher level's carrier wave combiner unit respectively, final F1, F2, F3, F4 close the road and export from port C.
Close in the device of road at multichannel carrier, can comprise a plurality of other the superior and the subordinate's carrier wave combiner units of level, when comprising other the superior and the subordinate of a plurality of level carrier wave combiner unit, for same carrier wave combiner unit and different carrier wave close the road when connecting its can the while as higher level's carrier wave combiner unit and subordinate's carrier wave combiner unit.For example, the input that can also continue as other carrier wave combiner units is exported on the road of closing of the higher level's carrier wave combiner unit among Fig. 9, and at this moment, the higher level's carrier wave combiner unit among Fig. 9 is then as subordinate's carrier wave combiner unit.
In sum, can be to realize that low Insertion Loss carrier wave closes road output by the present invention, improve the reliability of carrier power utilance and equipment work, reduce the cost of equipment.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, a kind of device of realizing wireless wideband frequency combiner, it is characterized in that, comprise that the width of cloth adjusts device and mixer spare mutually, the width of cloth is adjusted device mutually and is used for that the CF signal reflection that the road is waited to close in each road of input is carried out the width of cloth with transmission signals and adjusts processing mutually, reflection and transmission signals are adjusted the input port that is input to mixer spare after the processing respectively mutually through the width of cloth, and each CF signal after output port obtains merging.
2, device according to claim 1, it is characterized in that, the described width of cloth is adjusted device mutually and is comprised two ports, and the parameter that two ports are adjusted device mutually according to the width of cloth respectively reflects with the transmission width of cloth the signal of input adjusts processing mutually, reflected signal is returned by the port of signal input, adjusts the transmission signals of device through the width of cloth mutually and then exports by the another port.
3, device according to claim 2, it is characterized in that, described device also comprises circulator, wait that each road CF signal of closing the road mutually adjusts device with second port transmission to the width of cloth by first port of circulator, for adjust mutually from the width of cloth signal that device reflects then second port by circulator and the 3rd port transmission to the input port of mixer spare.
4, according to claim 1,2 or 3 described devices, it is characterized in that described mixer spare comprises: electric bridge, magic T, homophase mixer or anti-phase mixer.
5, device according to claim 4, it is characterized in that, when adopting 90 degree electric bridges as mixer spare, the width of cloth is adjusted device mutually and is carried out the width of cloth at the reflected signal of signal of input and adjust mutually and handle the first via signal that obtains, also the signal of importing is carried out the width of cloth simultaneously and adjust the second road signals of acquisition mutually with respect to first via phase lag signal or leading 90 degree, described first via signal is identical with the second road signal amplitude, the output after 90 degree electric bridges merge of the described first via signal and the second road signal.
6, device according to claim 4, it is characterized in that, when adopting 180 degree electric bridges or homophase mixer as mixer spare, the width of cloth is adjusted device mutually and is carried out the width of cloth at the reflected signal of signal of input and adjust mutually to handle and obtain first via signal, also the signal of importing is carried out the width of cloth simultaneously and adjust the acquisition the second road signal identical mutually with first via signal phase, described first via signal is identical with the second road signal amplitude, the output after 180 degree electric bridges or magic T or the merging of homophase mixer of the described first via signal and the second road signal.
7, device according to claim 4, it is characterized in that, when adopting 180 degree electric bridges or anti-phase mixer as mixer spare, the width of cloth is adjusted device mutually and is carried out the width of cloth at the reflection of signal of input and adjust mutually to handle and obtain first via signal, also the signal of importing is carried out the width of cloth simultaneously and adjust the acquisition the second road signal opposite mutually with first via signal phase, described first via signal is identical with the second road signal amplitude, the output after 180 degree electric bridges or magic T or the merging of anti-phase mixer of the described first via signal and the second road signal.
8, according to claim 1,2 or 3 described devices, it is characterized in that, comprise in the described device that a plurality of width of cloth adjust the carrier wave combiner unit that device and mixer spare are formed mutually, wherein, in a plurality of carrier wave combiner units, the road output of closing of subordinate's carrier wave combiner unit will be as the carrier wave input of waiting to close the road of higher level's carrier wave combiner unit.
9, device according to claim 8 is characterized in that, described carrier wave combiner unit also comprises two circulators.
10, device according to claim 8, it is characterized in that, in described a plurality of carrier wave combiner unit, any two carrier wave combiner units comprise other carrier wave combiner unit of at least two levels as the corresponding higher level's carrier wave combiner unit of subordinate's carrier wave combiner unit in described a plurality of carrier wave combiner units.
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| CN2006100030820A CN1862872B (en) | 2006-02-08 | 2006-02-08 | Apparatus for implementing wireless wideband frequency combiner |
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| CN2006100030820A CN1862872B (en) | 2006-02-08 | 2006-02-08 | Apparatus for implementing wireless wideband frequency combiner |
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| CN1862872B CN1862872B (en) | 2010-04-21 |
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| CN101247134B (en) * | 2008-03-06 | 2012-05-23 | 中兴通讯股份有限公司 | Resonating device and method for electrically regulated filtering unit |
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| US4451832A (en) * | 1982-03-22 | 1984-05-29 | Gte Products Corporation | Radio frequency transmitter coupling circuit |
| US5504465A (en) * | 1992-11-18 | 1996-04-02 | Space Systems/Loral, Inc. | Microwave modulator having adjustable couplers |
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