CN103647130B - 6 road radio frequency high-power synthesizers - Google Patents
6 road radio frequency high-power synthesizers Download PDFInfo
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- CN103647130B CN103647130B CN201310740452.9A CN201310740452A CN103647130B CN 103647130 B CN103647130 B CN 103647130B CN 201310740452 A CN201310740452 A CN 201310740452A CN 103647130 B CN103647130 B CN 103647130B
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Abstract
The invention discloses a kind of 6 road radio frequency high-power synthesizers, comprise 6 1:1 balanced-unbalanced transformers, wherein the output of every 3 1:1 balanced-unbalanced transformers is connected with the input of 3 road homophase power combiners respectively, the output of two 3 road homophase power combiners is connected with the input of a 1:4 impedance transformer respectively, the output of two 1:4 impedance transformers connects the input of 2 road homophase power combiners, the output of described 2 road homophase power combiners connects the input of LC low pass impedance converter, the output of described LC low pass impedance converter is as the output of this power combiner.6 road radio frequency high-power synthesizers of the present invention achieve 6 tunnel radiofrequency signal synthesis, have widened the kind of radio frequency high-power synthesizer, compact conformation, good operating stability.
Description
Technical field
The present invention relates to radio-frequency power synthesis field, especially relate to 6 road radio frequency high-power synthesizers.
Background technology
The Key Implementation Technology of rf broadband high power combiner uses line transformer, but the impedance transformation ratio that line transformer can conveniently realize is limited to 1:4,1:9,1:16 ... these and natural number square, this causes the way that can synthesize to be limited to 4,9,16 ...And for resembling the such requirement of 6 road synthetic wideband, thus also there is no 6 road radio frequency high-power synthesizers at present due to 1:6 impedance transformation can not be realized easily.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency existing in prior art, a kind of 6 road radio frequency high-power synthesizers are provided.
In order to realize foregoing invention object, the technical solution used in the present invention is:
A kind of 6 road radio frequency high-power synthesizers, comprise 6 1:1 balanced-unbalanced transformers, wherein the output of every 3 1:1 balanced-unbalanced transformers is connected with the input of 3 road homophase power combiners respectively, the output of two 3 road homophase power combiners is connected with the input of a 1:4 impedance transformer respectively, the output of two 1:4 impedance transformers connects the input of 2 road homophase power combiners, the output of described 2 road homophase power combiners connects the input of LC low pass impedance converter, the output of described LC low pass impedance converter is as the output of this power combiner.
In the present invention, 6 road balanced radio frequency signals of input are converted to uneven radiofrequency signal by 6 1:1 balanced-unbalanced transformers, by two 3 road homophase power combiners, uneven for 6 tunnels radiofrequency signal is synthesized 2 tunnel radiofrequency signals, 2 tunnel radiofrequency signal impedances are 16.7 ohm, be 66.8 Europe by two 1:4 impedance transformers by 2 tunnel radiofrequency signal impedance transformation afterwards, a road radio frequency output is synthesized by crossing 2 tunnel radiofrequency signals again by 2 road homophase power combiners, output impedance is 33.4 ohm, 50 ohm or 75 ohm are converted to by 33.4 ohm finally by LC low pass impedance converter Jiang Gai mono-road radio frequency output impedance, thus achieve 6 tunnel radiofrequency signal synthesis, widen the kind of radio frequency high-power synthesizer.
Preferably, described 6 1:1 balanced-unbalanced transformers are installed with two 3 road homophase power combiners are overlapping in the height direction, and two 1:4 impedance transformers are installed with 2 road homophase power combiners are overlapping in the height direction.6 1:1 balanced-unbalanced transformers are installed with two 3 road homophase synthesizers are overlapping in the height direction thus decrease the space hold in horizontal direction, two 1:4 impedance transformers install with 2 road homophase synthesizers are overlapping in the height direction the space hold decreased in horizontal direction, compact conformation, reduce horizontal size, save valuable PCB surface and amass.
Preferably, the output impedance of described LC low pass impedance converter is 50 Ω or 75 Ω, can be suitable for existing general radio frequency coaxial cable.
Preferably, signal isolator is provided with between any two-way radiofrequency signal in the radiofrequency signal of the input input of described 6 1:1 balanced-unbalanced transformers, 3 road homophase power combiners, 1:4 impedance transformer and 2 road homophase power combiners.Mutually isolated between the input of any two-way radio frequency, each road signal is mutually isolated, like this when wherein any road only will be part of the loss fan-out capability after losing efficacy, and global failure and fault coverage can not be caused to expand, good operating stability.
compared with prior art, beneficial effect of the present invention:
6 road radio frequency high-power synthesizers of the present invention achieve 6 tunnel radiofrequency signal synthesis, have widened the kind of radio frequency high-power synthesizer.In this 6 road radio frequency high-power synthesizer, 6 1:1 balanced-unbalanced transformers are installed with two 3 road homophase synthesizers are overlapping in the height direction thus decrease the space hold in 6 road radio frequency high-power synthesizer horizontal directions, two 1:4 impedance transformers install with 2 road homophase synthesizers are overlapping in the height direction the space hold decreased in horizontal direction, compact conformation, reduce horizontal size, save valuable PCB surface to amass, its size is little, layout is simple, cost is low, be easy to expanded application, the scope of application is wide.Mutually isolated between any two-way radio frequency input in preferred version of the present invention, good operating stability.
accompanying drawing illustrates:
Fig. 1 is the theory diagram of 6 road radio frequency high-power synthesizers;
Fig. 2 is the specific implementation schematic diagram of 6 road radio frequency high-power synthesizers.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
As shown in Figure 1, the present invention 6 road radio frequency high-power synthesizer is suitable for synthesis 6 road homophase, the high-power input signal of balanced type, comprise 5 functional units: 1:1 balanced-unbalanced transformer 1,3 road homophase power combiner 2,1:4 impedance transformer 3,2 road homophase power combiner 4 and LC low pass impedance converter 5, and 5 functional units are existing mature technology.Concrete, 6 1:1 balanced-unbalanced transformers 1, wherein the output of every 3 1:1 balanced-unbalanced transformers is connected with the input of 3 road homophase power combiners 2 respectively, the output of two 3 road homophase power combiners 2 is connected with the input of a 1:4 impedance transformer 3 respectively, the output of two 1:4 impedance transformers 3 connects the input of 2 road homophase power combiners 4, the output of described 2 road homophase power combiners 4 connects the input of LC low pass impedance converter 5, the output of described LC low pass impedance converter 5 is as the output of this power combiner.Each functional unit input/output end port impedance Z1 ~ Z6 represents, wherein Z1=50 Ω, Z2=50 Ω, Z3=16.7 Ω, Z4=66.8 Ω, Z5=33.4 Ω, Z6=50 Ω.
During work, balanced signal RFin1 ~ the RFin6 of 6 tunnel constant amplitudes, homophase is input to the balance input of 6 1:1 balanced-unbalanced transformers 1 respectively, be transformed into the 6 uneven radiofrequency signals in tunnels through 1:1 balanced-unbalanced transformer 1 to export, impedance magnitude remains unchanged Z1=Z2=50 Ω.The uneven radiofrequency signal in 6 tunnels that 1:1 balanced-unbalanced transformer 1 exports divides two groups of inputs inputting 23 road homophase power combiners 2 respectively, and 3 road homophase power combiners 2 export after 3 tunnel radiofrequency signals are added, and output impedance becomes Z3=16.7 Ω.The output of 23 road homophase power combiners 2 connects the input of 2 1:4 impedance transformers 3 respectively, and output impedance becomes Z4=66.8 Ω.The output radiofrequency signal of 2 1:4 impedance transformers 3 inputs the input of 2 road homophase power combiners 4 respectively, and 2 road homophase power combiners 4 export after 2 tunnel radiofrequency signals are added, and output impedance becomes Z5=33.4 Ω.The output radiofrequency signal input LC low pass impedance converter 5 of 2 road homophase power combiners 4, output impedance becomes Z6=50 Ω, thus achieves 6 tunnel radiofrequency signal synthesis.The output impedance of LC low pass impedance converter 5 also can adjust and expand to 75 Ω, can be suitable for existing general radio frequency coaxial cable like this.
In the present invention, 6 road balanced radio frequency signals of input are converted to uneven radiofrequency signal by 6 1:1 balanced-unbalanced transformers, by two 3 road homophase power combiners, uneven for 6 tunnels radiofrequency signal is synthesized 2 tunnel radiofrequency signals, 2 tunnel radiofrequency signal impedances are 16.7 ohm, be 66.8 Europe by two 1:4 impedance transformers by 2 tunnel radiofrequency signal impedance transformation afterwards, by 2 road homophase power combiners, 2 tunnel radiofrequency signals are synthesized a road radio frequency again to export, output impedance is 33.4 ohm, 50 ohm or 75 ohm are converted to by 33.4 ohm finally by LC low pass impedance converter Jiang Gai mono-road radio frequency output impedance, thus achieve 6 tunnel radiofrequency signal synthesis, widen the kind of radio frequency high-power synthesizer.LC low pass impedance converter is adopted in the present invention simultaneously, LC low pass impedance converter is difficult to obtain Broadband Matching for large impedance transformation ratio, but for broadband be not very wide and that impedance transformation is less application owing to having certain Out-of-band rejection ability, thus can obtain better harmonic distortion and band outer AF panel.
Traditional use high power transmission line transformer realizes rf broadband high power combiner to be needed to use large-sized magnetic core in case the problems of excessive heat that causes of magnetic loss, and this is for how combined magnet core is to reduce horizontal size, saves that valuable PCB surface is long-pending proposes requirement.Referring to Fig. 2,6 1:1 balanced-unbalanced transformers described in preferred version of the present invention are installed with two 3 road homophase power combiners are overlapping in the height direction, and two 1:4 impedance transformers are installed with 2 road homophase power combiners are overlapping in the height direction.6 1:1 balanced-unbalanced transformers are installed with two 3 road homophase synthesizers are overlapping in the height direction thus decrease the space hold in horizontal direction, two 1:4 impedance transformers install with 2 road homophase synthesizers are overlapping in the height direction the space hold decreased in horizontal direction, compact conformation, reduce horizontal size, save valuable PCB surface and amass.
As another preferred version, in the radiofrequency signal of the input input of described 6 1:1 balanced-unbalanced transformers 1,3 road homophase power combiner 2,1:4 impedance transformer 3 and 2 road homophase power combiner 4, between any two-way radiofrequency signal, be provided with signal isolator (not shown).Mutually isolated between the input of any two-way radio frequency, each road signal is mutually isolated, like this when wherein any road only will be part of the loss fan-out capability after losing efficacy, and global failure and fault coverage can not be caused to expand, good operating stability.
By reference to the accompanying drawings the specific embodiment of the present invention is described in detail above, but the present invention is not restricted to above-mentioned execution mode, in the spirit and scope situation of claim not departing from the application, those skilled in the art can make various amendment or remodeling.
Claims (3)
1. a road radio frequency high-power synthesizer, it is characterized in that, comprise 6 1:1 balanced-unbalanced transformers (1), wherein the output of every 3 1:1 balanced-unbalanced transformers (1) is connected with the input on 3 roads homophase power combiner (2) respectively, the output on two 3 roads homophase power combiner (2) is connected with the input of a 1:4 impedance transformer (3) respectively, the output of two 1:4 impedance transformers (3) connects the input on 2 roads homophase power combiner (4), the output on described 2 roads homophase power combiner (4) connects the input of LC low pass impedance converter (5), the output of described LC low pass impedance converter (5) is as the output of this power combiner, described 6 1:1 balanced-unbalanced transformers (1) are installed with two 3 roads homophase power combiner (2) are overlapping in the height direction, and two 1:4 impedance transformers (3) are installed with 2 roads homophase power combiner (4) are overlapping in the height direction.
2. 6 road radio frequency high-power synthesizers according to claim 1, is characterized in that, the output impedance of described LC low pass impedance converter (5) is 50 Ω or 75 Ω.
3. 6 road radio frequency high-power synthesizers according to claim 1 and 2, it is characterized in that, in the radiofrequency signal of the input input of described 6 1:1 balanced-unbalanced transformers (1), 3 roads homophase power combiner (2), 1:4 impedance transformer (3) and No. 2 power combiners (4), between any two-way radiofrequency signal, be provided with signal isolator.
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| CN201310740452.9A CN103647130B (en) | 2013-12-27 | 2013-12-27 | 6 road radio frequency high-power synthesizers |
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| CN201310740452.9A CN103647130B (en) | 2013-12-27 | 2013-12-27 | 6 road radio frequency high-power synthesizers |
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| US5523728A (en) * | 1994-08-17 | 1996-06-04 | The United States Of America As Represented By The Secretary Of The Army | Microstrip DC-to-GHZ field stacking balun |
| GB2359666B (en) * | 2000-02-24 | 2004-06-23 | Wireless Systems Int Ltd | A signal combiner, a signal splitter and a circuit using a combiner and a splitter |
| CN101662061A (en) * | 2009-09-25 | 2010-03-03 | 华南理工大学 | Planar spatial power dividing/combining amplifier |
| CN203242732U (en) * | 2013-05-15 | 2013-10-16 | 北京北广科技股份有限公司 | Broadband power combiner |
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Effective date of registration: 20200805 Address after: 610000 No.6 building, hi tech Incubation Park, north section of Tianfu Avenue, Chengdu, Sichuan Province Patentee after: CHENGDU NTS SOFTWARE Co.,Ltd. Address before: 610041, Sichuan high tech Zone, Chengdu Tianfu Road, South extension line, high-tech incubator Park, building 3, 6 Patentee before: CHENGDU NTS TECHNOLOGY Co.,Ltd. |
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