CN104022326B - A kind of same frequency combiner - Google Patents

Abstract

The present invention discloses a kind of same frequency combiner, includes 3dB electric bridge and the shell of parcel 3dB electric bridge；Described 3dB electric bridge include overlap together, centre be provided with the first electric bridge and second electric bridge of insulation spacer；Described first electric bridge includes the first coupled section, the second coupled section and connects the first coupled section and the first linkage section of the second coupled section；Described second electric bridge includes the 3rd coupled section, the 4th coupled section and connects the 3rd coupled section and the second linkage section of the 4th coupled section；By so shaped design, under the emulation of computer software, calculating, the impedance factor of the present invention is less, and coupling is high, and coupling efficiency reaches more than 95%；Its isolation is more than 10db, and interference is low, effectively meets the requirement of 4G network.

Description

A co-frequency combiner

technical field

The invention relates to the field of co-frequency combiners.

Background technique

The 3dB bridge is also called the same frequency combiner, generally refers to the coupling bridge part in the same frequency combiner, its function is to couple two signals of the same frequency, it is widely used in the field of communication technology, and the 3dB bridge is the most The main performance includes interference, coupling, isolation, etc. With the advent of the 4G network era, its requirements for communication products are getting higher and higher, especially for 3dB bridges, which have higher requirements for coupling, so The market needs a 3dB bridge with higher coupling and lower interference.

Contents of the invention

The object of the present invention is to overcome the above-mentioned shortcomings and provide a high-performance co-frequency combiner.

In order to achieve the above object, the specific solution of the present invention is as follows: the same frequency combiner includes a 3dB bridge and a shell that wraps the 3dB bridge; The first bridge and the second bridge; the first bridge includes a first coupling section, a second coupling section and a first connecting section connecting the first coupling section and the second coupling section; the first electric bridge The bridge also includes a first input end arranged at the free end of the first coupling section and a first output end arranged at the free end of the second coupling section; the second electric bridge includes a third coupling section, a fourth coupling section and a connection The second connection section of the third coupling section and the fourth coupling section; the second electric bridge also includes a second input terminal provided at the free end of the third coupling section and a second output terminal provided at the free end of the fourth coupling section The side of the first coupling section provided with the first connecting section extends obliquely downward with a plurality of first coupling wings; the side of the third coupling section provided with the second connecting section extends obliquely downward with a plurality of The third coupling wing; the free ends of the first coupling wing and the third coupling wing are provided with a triangular blocking notch.

Wherein, the other side of the second coupling section provided with the first connecting section has a plurality of second coupling wings extending obliquely upward; the other side of the fourth coupling section provided with the second connecting section extends obliquely upwards with a plurality of a fourth coupling wing. The first coupling section and the second coupling section are respectively located on both sides of the first connecting section; the third coupling section and the fourth coupling section are respectively located on both sides of the second connecting section;

Wherein, the included angles between the first coupling wing and the third coupling wing and the horizontal direction are both 30°.

Wherein, the angles between the second coupling wing and the fourth coupling wing and the horizontal direction are both 30°.

Wherein, the number of the first coupling wings and the third coupling wings is four.

Wherein, the number of the second coupling wings and the fourth coupling wings is four.

Wherein, the free ends of the second coupling wing and the fourth coupling wing are provided with a triangular blocking notch.

The beneficial effects of the present invention are: the same-frequency combiner includes a 3dB electric bridge and a shell wrapping the 3dB electric bridge; the 3dB electric bridge includes a first electric bridge that is overlapped and arranged together with insulating gaskets in the middle and a second electric bridge; the first electric bridge includes a first coupling section, a second coupling section and a first connection section connecting the first coupling section and the second coupling section; the second electric bridge includes a third Coupling section, the fourth coupling section and the second connecting section connecting the third coupling section and the fourth coupling section; through such shape design, under the simulation of computer software, it is calculated that the impedance coefficient of the present invention is small and the coupling is high , the coupling rate is over 95%; the isolation is greater than 10db, and the interference is low, which effectively meets the requirements of the 4G network.

Description of drawings

Fig. 1 is the schematic diagram of the first electric bridge of the present invention;

Fig. 2 is the schematic diagram of the second electric bridge of the present invention;

Fig. 3 is a partial enlarged view of Fig. 2;

Fig. 4 is the schematic diagram of 3dB electric bridge of the present invention;

Fig. 5 is the schematic diagram of the first electric bridge of the present invention;

Fig. 6 is a schematic diagram of the present invention;

Fig. 7 is the coupling test diagram of the present invention under computer simulation software;

Explanation of reference numerals among Fig. 1 to Fig. 7:

1-first electric bridge; 11-first input end; 12-first output end; 13-first coupling section; 13a-first coupling wing; 14-second coupling section; 14a-second coupling wing; 15 - the first connection section; 16 - the first isolation section; 17 - the first hollow hole;

2-second electric bridge; 21-second input end; 22-second output end; 23-third coupling section; 23a-third coupling wing; 24-fourth coupling section; 24a-fourth coupling wing; 25 - the second connection section; 26 - the second isolation section; 27 - the second hollow hole;

3- Barrier gap.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the co-frequency combiner described in the present embodiment includes a 3dB bridge and a shell wrapping the 3dB bridge; The 3dB electric bridge includes a first electric bridge 1 and a second electric bridge 2 which are overlapped and arranged together with insulating gaskets in the middle; the first electric bridge 1 includes a first coupling section 13, a second coupling section 14 and the first connecting section 15 connecting the first coupling section 13 and the second coupling section 14; the first electric bridge 1 also includes a first input terminal 11 arranged at the free end of the first coupling section 13 and a first input terminal 11 arranged at the second coupling section 14 The first output end 12 of the free end of the two coupling sections 14; the second bridge 2 includes a third coupling section 23, a fourth coupling section 24 and a second connecting section connecting the third coupling section 23 and the fourth coupling section 24 25; the second electric bridge 2 also includes a second input end 21 arranged at the free end of the third coupling section 23 and a second output end 22 arranged at the free end of the fourth coupling section 24; the first electric bridge 1 An insulating gasket is provided between the second electric bridge 2, and an insulating post can also be provided between them. Both the insulating post or the insulating spacer need to insulate and separate the first electric bridge 1 and the second electric bridge 2; the signal from The first input terminal 11 and the second input terminal 21 are input, and the first connection section 15 and the second connection section 25 couple the signal; through computer software simulation, the coupling degree is as high as 95%, and the isolation degree is relatively large and the impedance is small. , The standing wave is small; as shown in Figure 6, the coupling frequency calculated by the simulation software can reach 2950KHZ, and the coupling line is very smooth, which greatly meets the requirements of the current mainstream 4G LTE technical standards, and its practicability is greatly increased. Its structure is simple, not easy to damage, and has a long service life. Through such a shape design, under the simulation of computer software, it is calculated that the impedance coefficient of the present invention is small, the coupling is high, the coupling rate is over 95%, and its isolation is greater than 10db , low interference, and effectively meet the requirements of the 4G network.

In the same-frequency combiner described in this embodiment, the side of the first coupling section 13 provided with the first connecting section 15 extends obliquely downward with a plurality of first coupling wings 13a; the third coupling section 23 is provided with There are a plurality of third coupling wings 23a extending obliquely downward from the side with the second connecting section 25; when the first bridge 1 and the second bridge 2 overlap, the first coupling wings 13a and the third coupling wings 23a also overlap, As shown in Fig. 3, it presents a cross state, and through the coupling between the first coupling wing 13a and the third coupling wing 23a, under computer software simulation, it can be drawn that the coupling coefficient of the present invention has been further enhanced; the first coupling wing 13a and The free ends of the third coupling wings 23a are provided with a triangular blocking notch 3; through simulation, it further reduces the standing wave impedance of the overall coupler. The first coupling section 13 and the second coupling section 14 are respectively located on both sides of the first connecting section 15; the third coupling section 23 and the fourth coupling section 24 are respectively located on both sides of the second connecting section 25;

In the same-frequency combiner described in this embodiment, the second coupling section 14 is provided with a plurality of second coupling wings 14a extending obliquely upward on the other side of the first connecting section 15; the fourth coupling section 24 is provided with There are a plurality of fourth coupling wings 24a extending obliquely upward on the other side of the second connecting section 25; as shown in Figure 3, it presents a cross state, through the coupling between the second coupling wing 14a and the fourth coupling wing 24a, in computer software simulation Below, it can be drawn that the coupling coefficient of the present invention is further enhanced; the free ends of the second coupling wing 14a and the fourth coupling wing 24a are all provided with a triangular blocking notch 3; by simulation, it further reduces the overall coupler standing wave impedance.

In the co-frequency combiner described in this embodiment, the included angles between the first coupling wing 13a and the third coupling wing 23a and the horizontal direction are both 30°; in the co-frequency combiner described in this embodiment, the described The angle between the second coupling wing 14a and the fourth coupling wing 24a and the horizontal direction is 30°; under the simulation of the computer simulation software, the angle between the first coupling wing 13a to the fourth coupling wing 24a and the horizontal direction is 30° , the coupling degree is the best.

In the co-frequency combiner described in this embodiment, the number of the first coupling wings 13a and the third coupling wings 23a is four; the number of the second coupling wings 14a and the fourth coupling wings 24a is four. According to the simulation by computer simulation software, when the number of the first coupling wings 13 a to the fourth coupling wings 24 a is 4, it can save the most material while maintaining the best coupling degree.

In the same-frequency combiner described in this embodiment, the first coupling section 13 is provided with a first isolation section 16 extending obliquely downward from the opposite side of the first connecting section 15; the third coupling section 23 is provided with The second isolation section 26 extends obliquely downward from the opposite side of the second connection section 25 ; the isolation degree is further increased by the provision of the first isolation section 16 and the second isolation section 26 , and the isolation degree can reach 12db.

In the same-frequency combiner described in this embodiment, the first coupling section 13 and the second coupling section 14 are provided with a plurality of triangular first hollow holes 17, and the third coupling section 23 and the fourth coupling section 24 are provided with a plurality of triangular second hollow holes 27; through the design of the first hollow hole 17 and the second hollow hole 27, under the simulation of computer simulation software, it can be found that it greatly reduces the impedance coefficient and reduces the interference. properties, greatly improving the electrical performance of the present invention.

The above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present invention are included in the protection scope of the patent application of the present invention.

Claims (6)

1. a same frequency combiner, includes 3dB electric bridge and the shell of parcel 3dB electric bridge；It is characterized in that: described 3dB electric bridge include overlap together, centre be provided with the first electric bridge (1) and second electric bridge (2) of insulation spacer；Described first electric bridge (1) includes the first coupled section (13), the second coupled section (14) and connects the first coupled section (13) and first linkage section (15) of the second coupled section (14)；Described first electric bridge (1) also includes the first input end (11) of the free end being located at the first coupled section (13) and is located at first outfan (12) of the second coupled section (14) free end；Described second electric bridge (2) includes the 3rd coupled section (23), the 4th coupled section (24) and connects the 3rd coupled section (23) and second linkage section (25) of the 4th coupled section (24)；Described second electric bridge (2) also includes second input (21) of the free end being located at the 3rd coupled section (23) and is located at second outfan (22) of the 4th coupled section (24) free end；

The side that described first coupled section (13) is provided with the first linkage section (15) is extended with a plurality of first coupling wing (13a) obliquely；The side that described 3rd coupled section (23) is provided with the second linkage section (25) is extended with a plurality of 3rd coupling wing (23a) obliquely；

What the free end of the described first coupling wing (13a) and the 3rd coupling wing (23a) was equipped with a triangle obstructs breach (3)；

The opposite side that described second coupled section (14) is provided with the first linkage section (15) is extended with a plurality of second coupling wing (14a) obliquely；

The opposite side that described 4th coupled section (24) is provided with the second linkage section (25) is extended with a plurality of 4th coupling wing (24a) obliquely；Described first coupled section (13) and the second coupled section 14) it is equipped with first hollow hole (17) of a plurality of triangle, described 3rd coupled section (23) and the 4th coupled section (24) are equipped with second hollow hole (27) of a plurality of triangle；

Described first coupled section (13) and the second coupled section (14) lay respectively at the both sides of the first linkage section (15)；

Described 3rd coupled section (23) and the 4th coupled section (24) lay respectively at the both sides of the second linkage section (25).

The same frequency combiner of one the most according to claim 1, it is characterised in that: the angle that the described first coupling wing (13a) couples the wing (23a) and horizontal direction with the 3rd is 30 °.

The same frequency combiner of one the most according to claim 1, it is characterised in that: the angle that the described second coupling wing (14a) couples the wing (24a) and horizontal direction with the 4th is 30 °.

The same frequency combiner of one the most according to claim 1, it is characterised in that: the quantity that the described first coupling wing (13a) couples the wing (23a) with the 3rd is 4.

The same frequency combiner of one the most according to claim 1, it is characterised in that: the quantity that the described second coupling wing (14a) couples the wing (24a) with the 4th is 4.

The same frequency combiner of one the most according to claim 1, it is characterised in that: the free end of the described second coupling wing (14a) and the 4th coupling wing (24a) is equipped with a triangle and obstructs breach (3).