CN110739516A

CN110739516A - kinds of power synthesizer

Info

Publication number: CN110739516A
Application number: CN201911028366.9A
Authority: CN
Inventors: 杨林明
Original assignee: Beijing Institute of Radio Measurement
Current assignee: Beijing Institute of Radio Measurement
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-01-31

Abstract

The embodiment of the invention discloses power synthesizers, which are characterized by comprising a fan-shaped end, an output end and an input end, wherein the fan-shaped end comprises a fan-shaped narrow end and a fan-shaped wide end, the output end is connected with the fan-shaped narrow end and used for outputting waveguides, and the input end is connected with the fan-shaped wide end and used for inputting waveguides.

Description

kinds of power synthesizer

Technical Field

The invention relates to power combiners, in particular to power combiners.

Background

However, a single solid-state power amplifier is limited by the physical characteristics of a semiconductor and the processing technology of the single solid-state power amplifier, and the output power is limited, so that in order to meet the output power requirement of the radar on the transmitter, the output power of the solid-state transmitter must be increased by adopting a mode of power synthesis of a plurality of unit modules.

How to solve the problems of low synthesis efficiency, large volume and complex structure of the power synthesizer is an urgent need for power synthesizers to solve the above or more problems.

Disclosure of Invention

The invention aims to provide power combiners to solve the problems of low combining efficiency, large volume and complex structure of the power combiner in the prior art.

A second object of the present invention is to provide power-matched combining networks.

In order to achieve the purpose, the invention adopts the following technical scheme:

a power combiner, comprising:

a fan-shaped end comprising a fan-shaped narrow end and a fan-shaped wide end;

the output end is connected with the fan-shaped narrow end and used for outputting a waveguide; and the number of the first and second groups,

and the input end is connected with the fan-shaped wide end and used for inputting the waveguide.

Preferably, the input end includes an th end and a second end connected at 90 ° to the th end.

Preferably, the th end is connected to the second end by an arc.

Preferably, the input terminal further comprises:

th end having a plurality of th paths, and,

a second end having a plurality of second paths respectively connected to the plurality of th paths,

wherein said th end is connected at 90 ° to said second end.

Preferably, the plurality of th paths are arranged parallel to each other, and,

the plurality of second paths are arranged in parallel with each other.

Preferably, the end having the plurality of th paths and the second end having the plurality of second paths are connected by arcs of a circle having different radii.

Preferably, the fan-shaped end, the output end, and the input end are connected in the same plane .

In order to achieve the second purpose, the following technical scheme is adopted;

A power-matched composite network, comprising:

an th power combiner, wherein the th power combiner is a power combiner for achieving the th objective;

a second power combiner, said second power combiner being a power combiner for implementing the th objective;

wherein the content of the first and second substances,

an input end of the th power combiner is connected with an output end of the second power combiner;

the input end of the second power synthesizer is used as the input end of the network;

the output of the th power combiner is used as the output of the network.

Preferably, the th power combiner is axisymmetrically mounted with the second power combiner.

The invention has the following beneficial effects:

the power synthesizer of the invention adopts a fan-shaped structure, thus realizing impedance matching and reducing return loss; the power synthesis of different paths is realized by changing the radius and the angle of the sector, and the power synthesis is not limited by the number and the number of stages of a binary synthesizer; the method has the advantages of single-stage synthesis, low insertion loss and high synthesis efficiency; the synthesis path number is flexible and is not limited by binary system; the plane is integrated, and is small, simple structure, convenient radiating effect.

Drawings

The following detailed description describes embodiments of the present invention in conjunction with the accompanying drawings.

Fig. 1 shows a block diagram of inputs of a power combiner;

fig. 2 shows a block diagram of the multiple inputs of a power combiner:

FIG. 3 shows a schematic diagram of a power-matched composite network;

reference numerals: a fan-shaped end 10; a fan-shaped narrow end 11; a fan-shaped wide end 12;

the power combiner comprises an output end 20, an input end 30, a 1 st input end th end 31, a 1 st input end second end 32, an Nth input end th end 33, an Nth input end second end 34, a power matching and synthesizing network 40, a network output end 41, a network input end 42, a th power combiner input end 51, a th power combiner output end 52, a second power combiner input end 53, a second power combiner output end 54, a th power combiner 1 st input end second end 511, a th power combiner N th input end second end 512, a second power combiner N th output end second end 541 and a second power combiner 1 st output end second end 542.

Detailed Description

For purposes of illustrating the invention more clearly, the invention is described in further with reference to the preferred embodiment and the drawings wherein like reference numerals are used to indicate similar parts.

A power combiner, as shown in FIG. 1, comprising:

a fan-shaped end 10, the fan-shaped end 10 comprising a fan-shaped narrow end 11 and a fan-shaped wide end 12;

an output end 20 connected to the narrow end 11 for outputting a waveguide; and the number of the first and second groups,

and an input end 30 connected with the fan-shaped wide end 12 for inputting a waveguide.

The invention adopts a fan-shaped structure to realize impedance matching and reduce return loss. The power synthesis of different paths is realized by changing the radius and the angle of the fan-shaped end 10, and is not limited by the number of binary synthesizers and the number of stages.

The fan-shaped end 10, output end 20, and input end 30 are configured to be connected at the same plane so that the input and output end waveguides are at the same plane, unlike the vertical structure of a radial combiner, which facilitates integration and heat dissipation.

embodiments of the present invention, as shown in FIG. 1, the input end 30 has only for input waveguides, the input end 30 includes a th end 31 and a second end 32 connected at 90 to the th end 31, and the th end 31 and the second end 32 are configured to be connected by an arc.

In another embodiments of the present invention, as shown in fig. 2, the input terminal 30 further includes:

th end having a plurality of th paths, and,

and a second end having a plurality of second paths connected to the plurality of th paths, respectively, wherein the th end is connected to the second end at 90 ° to multiplex the input of the waveguide.

The plurality of th paths are arranged in parallel with each other and the plurality of second paths are arranged in parallel with each other.

In this embodiment, the second ends of the plurality of path waveguides are arranged in a transversely parallel line, and the second ends of the plurality of path waveguides are aligned.

The top path waveguide is the 1 st waveguide, the 1 st waveguide comprises the st end 31 of the 1 st input end, the 1 st input end is the second end 32, the waveguide positioned on the last paths is the Nth waveguide, the Nth waveguide comprises the th end 33 of the Nth input end, and the Nth input end is the second end 34 (N is an integer larger than or equal to 1) in the order from top to bottom in the defined plane.

The end with multiple th paths and the second end with multiple second paths are connected through arcs with different radiuses, the short turning radius of the branch path inside the middle of the fan shape is small, the long turning radius of the branch path outside the two ends of the fan shape is large, different turning radii can effectively make up the difference of the paths of the fan-shaped structure, the phases of every complete branches are the same, and the synthesis efficiency and the working bandwidth are guaranteed.

A third embodiment of the present invention, kinds of power matching combining networks, as shown in fig. 3, includes a th power combiner formed by the above scheme and a second power combiner also formed by the above scheme;

the power-matching combining network 40 includes a network output 41, a network input 42;

the input 53 of the second power combiner is used as the input 42 of the power combining network;

the output 52 of the th power combiner is taken as the output 41 of the network.

The internal connections of the power combining and combining network 40 are such that the input 51 of the th power combiner is connected to the output 54 of the second power combiner.

The th power combiner is arranged in axial symmetry with the second power combiner, and the th power combiner has its input terminal 51 connected with the output terminal 54 of the second power combiner.

Because the th power combiner has the same structure with the second power combiner, after the th power combiner is arranged in an axial symmetry way, under the condition that the th power combiner and the second power combiner adopt the th end and the second end of a plurality of paths, the th power combiner 1 st path input end second end 511 is connected with the second power combiner N path output end second end 541;

the second end 512 of the input end of the Nth path of the power combiner is connected with the second end 542 of the output end of the 1 st path of the second power combiner, N represents the path number of the waveguides, the power combiner and the second power combiner select the same number of waveguides, and the phases of every complete branches of the formed power distribution and synthesis network are the same, so that the synthesis efficiency and the working bandwidth are ensured.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims

A power combiner of the type 1, , comprising:

a fan-shaped end comprising a fan-shaped narrow end and a fan-shaped wide end;

the output end is connected with the fan-shaped narrow end and used for outputting a waveguide; and the number of the first and second groups,

and the input end is connected with the fan-shaped wide end and used for inputting the waveguide.
2. A power combiner as recited in claim 1, wherein said input terminals comprise an th terminal and a second terminal connected at 90 ° to said th terminal.
3. The power combiner of claim 2, wherein the th end is connected to the second end by an arc.
4. The power combiner of claim 1, wherein the input further comprises:

th end having a plurality of th paths, and,

a second end having a plurality of second paths respectively connected to the plurality of th paths,

wherein said th end is connected at 90 ° to said second end.
5. The power combiner of claim 4,

the plurality of th paths are arranged parallel to each other and,

the plurality of second paths are arranged in parallel with each other.
6. The power combiner of claim 4,

the end having the plurality of th paths and the second end having the plurality of second paths are connected by arcs of different radii.
7. The synthesizer of claim 1 wherein said sector terminal, said output terminal, and said input terminal are connected in the same plane.
8, A power-matched composite network, comprising:

an th power combiner, the th power combiner being as claimed in any of claims 1 to 7;

a second power combiner, the second power combiner being as claimed in any of claims 1 to 7;

wherein the content of the first and second substances,

an input end of the th power combiner is connected with an output end of the second power combiner;

the input end of the second power synthesizer is used as the input end of the network;

the output of the th power combiner is used as the output of the network.
9. The combining network of claim 8 wherein said -th power combiner is mounted axisymmetrically with said second power combiner.