CN218602716U

CN218602716U - Duplexer

Info

Publication number: CN218602716U
Application number: CN202223101882.XU
Authority: CN
Inventors: 高晨; 黄建平; 胡万超
Original assignee: Xi'an Aishang Zhihui Electronic Technology Co ltd
Current assignee: Xi'an Aishang Zhihui Electronic Technology Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-10
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to a duplexer field just discloses a duplexer, and the effectual public port that has solved at the duplexer at present increases extra transmission line structure to make the great problem of size of duplexer, which comprises a housing, the internally mounted of casing has wiring subassembly, and wiring subassembly sets up the inside cavity of casing including the symmetry, installs public post between two cavitys, and the bottom of public post is equipped with the public end interface, and public end interface fixed mounting is in the bottom of casing, the utility model discloses, adopt the structure that two resonance posts refer to through public port, can increase the coupling volume between two chambeies, solve the problem of port time delay simultaneously, at public port department, use soldering tin to weld joint and public post, then fix cavity and apron with fastening bolt, can guarantee good reliability, succinct transmission line structure can reduce the degree of difficulty for the installation of product again, is favorable to the production of product large batch more.

Description

Duplexer

Technical Field

The utility model belongs to the duplexer field specifically is a duplexer.

Background

In recent years, with the development of wireless communication systems, the market demand for communication transmission rate is increasing, and the phenomenon of frequency resource shortage occurs, so that the improvement of spectrum utilization rate becomes the focus of research. The duplexer plays an important role in frequency division as an indispensable device in the frequency division duplex technology, and the duplexer with higher bandwidth and higher isolation can enable the spectrum utilization rate to be higher. Meanwhile, low cost, high performance and small size are also very important considerations in the design of the duplexer, and the duplexer is composed of two band-pass filters with different frequencies, so that the design of a common port is very important, and the common port plays a role in connecting the two filters, but the following defects still exist in the use of the duplexer:

in the design of the filter common port, in order to reduce the mutual influence of the two band-pass filters, an additional transmission line structure needs to be added to the common port, so that the joint needs a larger area, the size of the duplexer is larger, a plurality of places need to be welded, and the assembly and debugging of the duplexer are not facilitated.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a duplexer, the effectual public port that has solved at the duplexer at present increases extra transmission line structure to make the great problem of size of duplexer.

In order to achieve the above purpose, the utility model provides a following technical scheme: a duplexer comprises a shell, wherein a wiring component is arranged in the shell;

the wiring assembly comprises cavities symmetrically arranged in the casing, a common column is arranged between the two cavities, a common end interface is arranged at the bottom end of the common column, and the common end interface is fixedly arranged at the bottom end of the casing.

Preferably, the inside of the two cavities is symmetrically provided with a resonance column disc, and a single-port joint is arranged above the resonance column disc.

Preferably, a top cover is installed above the machine shell, the single-port connectors are symmetrically and fixedly installed on the top cover, and the single-port connectors are connected with the resonant column disc.

Preferably, tuning screws are uniformly installed in the top cover and penetrate through the cavity.

Preferably, the top end of the top cover is uniformly provided with positioning holes, and fastening bolts are arranged inside the positioning holes.

Preferably, the top end of the casing is uniformly provided with screw holes, the screw holes are positioned below the positioning holes, and the fastening bolts are in threaded connection with the positioning holes.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses, adopt the structure that two resonance posts cross the finger through public port, can increase the coupling volume between two chambeies, solve the problem of port time delay simultaneously, at public port department, use soldering tin to connect and public post welding, then fix cavity and apron with fastening bolt, can guarantee good reliability, succinct transmission line structure, can reduce the degree of difficulty for the installation of product again, be favorable to the production of product large batch more;

(2) This is novel through in single port department, with the dish independent processing on the resonance post, the dish with take a percentage processing as an organic whole to when the installation, only need with dish and resonance for the post fix with screw weld together can, thereby make equipment fixing more convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of a duplexer of the present invention;

fig. 2 is an exploded view of the duplexer structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the housing of the present invention;

FIG. 4 is a schematic view of the top cover structure of the present invention;

in the figure: 1. a housing; 2. a top cover; 3. a wiring assembly; 301. a cavity; 302. a resonant column disk; 303. a common column; 304. a common port interface; 305. a single port fitting; 306. a tuning screw; 4. a screw hole; 5. positioning holes; 6. and (5) fastening the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 4, the present invention includes a casing 1, and a wiring assembly 3 is installed inside the casing 1;

the wiring component 3 comprises cavities 301 symmetrically arranged in the shell 1, a common column 303 is arranged between the two cavities 301, a common end interface 304 is arranged at the bottom end of the common column 303, the common end interface 304 is fixedly arranged at the bottom end of the shell 1, a resonance column disc 302 is symmetrically arranged in the two cavities 301, a single-port joint 305 is arranged above the resonance column disc 302, a top cover 2 is arranged above the shell 1, the single-port joint 305 is symmetrically and fixedly arranged on the top cover 2, the single-port joint 305 is connected with the resonance column disc 302, discs on the resonance column disc 302 are processed independently at the single-port joint 305, the discs and taps are processed into a whole, therefore, when the discs and the resonance column disc 302 are fixed together by screws for welding, tuning screws 306 are uniformly arranged in the top cover 2, the tuning screws 306 penetrate into the cavities 301, positioning holes 5 are uniformly arranged at the top end of the top cover 2, fastening bolts 6 are arranged in the positioning holes 5, screw holes 4 are uniformly arranged at the top end of the shell 1, the positioning holes 4 are positioned below the positioning holes 5, the fastening bolts 6 are in threaded connection with the cavities 5, the common end interface 304, the common end interface structure is a structure for reducing the size of the common column disc, and the common column disc, and the common column disc welding area of the common column disc is reduced, and the common column connection equipment, and the common column connection area of the common column, so that the common column connection structure is not needed to be larger.

The working principle is as follows: adopt the structure that two resonance posts cross at common port interface 304 department, the top of common port interface 304 is provided with common post 303, and common post 303 sets up between two cavitys 301 on casing 1, thereby at common port interface 304 department, use soldering tin to weld joint and common post 303, and common post 303 is connected with two single port connectors 305 respectively, thereby accomplish the output from two single port connectors 305, thereby reach the purpose of succinct transmission line structure, make the junction not need great area, thereby reduce the size of equipment, cover top cap 2 on the top of casing 1 after it, insert fastening bolt 6 inside locating hole 5, and with fastening bolt 6 and screw 4 threaded connection on the casing 1, thereby the installation of completion equipment reduces the degree of difficulty for the installation of product, be favorable to the production of product large batch, simultaneously at single port connector 305 department, the dish on resonance post dish 302 is processed alone, dish and tap processing as an organic whole, thereby, only need to fix dish and resonance post dish 302 with the screw and weld together when the installation, thereby make the equipment installation more convenient.

Claims

1. A duplexer, comprising a housing (1), characterized in that: a wiring component (3) is arranged in the shell (1);

the wiring component (3) comprises two cavities (301) symmetrically arranged in the casing (1), a common column (303) is arranged between the two cavities (301), a common end interface (304) is arranged at the bottom end of the common column (303), and the common end interface (304) is fixedly arranged at the bottom end of the casing (1).

2. The duplexer of claim 1, wherein: two cavity (301) inside symmetry installs resonance column dish (302), and the top of resonance column dish (302) is equipped with single port and connects (305).

3. A duplexer according to claim 2, characterized in that: a top cover (2) is installed above the machine shell (1), the single-port connectors (305) are symmetrically and fixedly installed on the top cover (2), and the single-port connectors (305) are connected with a resonant column disc (302).

4. A duplexer according to claim 3, characterized in that: tuning screws (306) are uniformly arranged in the top cover (2), and the tuning screws (306) penetrate into the cavity (301).

5. A duplexer according to claim 3, characterized in that: locating holes (5) are evenly formed in the top end of the top cover (2), and fastening bolts (6) are installed inside the locating holes (5).

6. A duplexer according to claim 5, characterized in that: screw holes (4) are uniformly formed in the top end of the machine shell (1), the screw holes (4) are located below the positioning holes (5), and the fastening bolts (6) are in threaded connection with the positioning holes (5).