CN203631921U

CN203631921U - Radio-frequency coaxial connector

Info

Publication number: CN203631921U
Application number: CN201320509613.9U
Authority: CN
Inventors: 欧阳伟; 寿祖刚
Original assignee: SUZHOU RECODEAL ELECTRONICS CO Ltd
Current assignee: Suzhou Recodeal Interconnect System Co ltd
Priority date: 2013-08-21
Filing date: 2013-08-21
Publication date: 2014-06-04
Anticipated expiration: 2023-08-21

Abstract

The utility model discloses a radio-frequency coaxial connector. The utility model aims at providing an improved radio-frequency coaxial connector. The radio-frequency coaxial connector comprises a main body; the main body comprises a first socket, a second socket, and a commutator connecting the two. The first socket and the second socket are in signal connection via the commutator, and the radio-frequency coaxial connector has the advantages of simple structure, durable use, convenient connection and good signal transmission. And the radio-frequency coaxial connector is mainly used for circuit board radio frequency connection.

Description

A kind of radio frequency (RF) coaxial connector

Technical field:

The utility model discloses a kind of radio frequency (RF) coaxial connector, belong to circuit board radio frequency (RF) coaxial connector field.

Background technology:

The radio frequency (RF) coaxial connector tolerance that radio frequency (RF) coaxial connector need have certain radial and axial tolerance to manufacture with compensation during to radio-frequency module to radio-frequency module or radio-frequency module to circuit board or circuit board for circuit board.

Known in the prior art have radio frequency (RF) coaxial connector can realize circuit board circuit board is connected.Problem is that described connector just allows not enough radial and axial tolerance or produce high impedance in the time of generation of interfaces gap to have reduced radio frequency electric property conventionally.

Available circuit plate does not all insert guiding to radio-frequency module or radio-frequency module to leading in radio-frequency module connector to circuit board or circuit board, easily damages connector inner wire.

The adapter of existing available circuit plate centre to radio-frequency module connector to radio-frequency module or radio-frequency module to circuit board or circuit board all can at random plug together with the socket at two ends, thereby causes two ends to have not matching area to be unfavorable for that impedance matching has reduced radio frequency electric property (having strengthened voltage standing wave ratio).

Utility model content:

The technical problems to be solved in the utility model is to provide a kind of larger axis that allows to side-play amount, and has the radio frequency (RF) coaxial connector of good radio frequency electrical resistance.Solve adapter inner wire in the time plugging together and insert bad problem.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of radio frequency (RF) coaxial connector, comprise body, and body comprises the first socket and the second socket and is connected both adapters; The first socket comprises the first outer conductor, the first center conductor and is located at the first insulator between the two; Adapter comprises the second outer conductor, the second center conductor and is located at the second insulator between the two; The second socket comprises the 3rd outer conductor, the 3rd center conductor and is located at the 3rd insulator between the two, it is characterized in that:

A. the first outer conductor contact-making surface of described the first socket is inner circular cylinder, and the first center conductor contact-making surface is external cylindrical surface, and the second center conductor end is T shape for being with flexible external shape, and inner openings is bowl-mouth shape;

B. the end of the top and bottom of the second outer conductor of described adapter is and has elasticity and be provided with the radially fixture block with salient point;

The 3rd outer conductor contact-making surface of described the second socket be inner circular cylinder and bottom with radial slot, the 3rd center conductor contact-making surface is inner circular cylinder;

The upper end of adapter is plugged in the first socket, and the upper end of the second outer conductor of the upper end of adapter is connected with the first outer conductor on the first socket, the upper end of the second center conductor is connected with the first center conductor on the first socket;

The lower end of adapter is plugged in the second socket, and the lower end of the second outer conductor of the lower end of adapter is connected with the 3rd outer conductor on the second socket, the lower end of the second center conductor is connected with the 3rd center conductor on the second socket.

Effect of the present utility model: owing to being provided with the inner wire of T shape in the inside of adapter, thereby in the engaging zones of adapter and socket, form different impedances region: the join domain place at connector in the time that the device pitch being connected has very large axial tolerance there will be larger air gap, thereby form high impedance areas; And the end region of adapter forms Low ESR region, the design of socket shoulder also forms a Low ESR region, other region is normal impedance region, high impedance areas and Low ESR region can form impedance complementation like this, thereby reduce the harmful effect of high impedance areas to connector performance, improved the radio frequency electric property of product.Therefore, radio frequency (RF) coaxial connector of the present utility model compared with prior art can allow larger axial offset (± 1mm), the amount of the impedance mismatch that minimizing linkage interface place is caused by air gap has good radio frequency electric property in frequency 0 to 6Ghz.Adapter inner wire as the rim of a bowl will protect inner wire by insert bad.4 of sockets coordinate the impedance matching that has ensured a-quadrant to reach excellent radio frequency electric property with the lower end of adapter 3.

Brief description of the drawings

By reference to the accompanying drawings the utility model is elaborated.

Fig. 1 is the elevation cross-sectional view of connector of the present utility model under assembled state.

Fig. 2 is the elevational cross-sectional view of the adapter of connector of the present utility model.

Fig. 3 is the center conductor upper end cutaway view of the adapter of connector of the present utility model.

Fig. 4 is impedance area schematic.

Fig. 5 is the utility model voltage standing wave ratio curve chart.

In figure, A is normal impedance region, V is Low ESR region, S is Low ESR region, R is the gap forming after connecting, for high impedance areas, body 1, the first socket 2, adapter 3, the second socket 4, the first outer conductor 21, the first insulator 22, the first center conductor 23, the second outer conductor 31, the second insulator 32, the second center conductor 33, the 3rd outer conductor 41, the 3rd insulator 42, the 3rd center conductor 43

Embodiment

Referring to accompanying drawing 1, to accompanying drawing 4, the utility model comprises body 1, and body 1 comprises the first socket 2 and the second socket 4 and is connected both adapters 3; The first socket 2 comprises the first outer conductor 21, the first center conductor 23 and is located at the first insulator 22 between the two; Adapter 3 comprises the second outer conductor 31, the second center conductor 33 and is located at the second insulator 32 between the two; The second socket 4 comprises the 3rd outer conductor 41, the 3rd center conductor 43 and is located at the 3rd insulator 42 between the two, it is characterized in that:

A. the first outer conductor 21 contact-making surfaces of described the first socket 2 are inner circular cylinder, and the first center conductor 23 contact-making surfaces are external cylindrical surface, and the second center conductor 33 ends are T shape for being with flexible external shape, and inner openings is bowl-mouth shape;

B. the end of the top and bottom of the second outer conductor 31 of described adapter 3 is and has elasticity and be provided with the radially fixture block with salient point;

C. the 3rd outer conductor 41 contact-making surfaces of described the second socket 4 be inner circular cylinder and bottom with radial slot, the 3rd center conductor 43 contact-making surfaces are inner circular cylinder;

The upper end of adapter 3 is plugged in the first socket 2, and the upper end of the second outer conductor 31 of the upper end of adapter 3 is connected with the first outer conductor 21 on the first socket 2, the upper end of the second center conductor 33 is connected with the first center conductor 23 on the first socket 2;

The lower end of adapter 3 is plugged in the second socket 4, and the lower end of the second outer conductor 31 of the lower end of adapter 3 is connected with the 3rd outer conductor 41 on the second socket 4, the lower end of the second center conductor 33 is connected with the 3rd center conductor 43 on the second socket 4.

The end of the top and bottom of the second outer conductor 31 of described adapter 3 is to have elasticity and be provided with the radially card with salient point and determines.Be impedance matching region by the second socket 4 with the a-quadrant that the lower end of adapter 3 forms, V region is Low ESR region, and Zone R territory is high impedance areas, and S region is Low ESR region.

The empty gap (as Fig. 4 " R " region) that becomes to affect radio frequency electric property of the interior formation of the first socket 2 is inserted in the upper end of adapter 3, the T shape inner wire of adapter forms Low ESR region (as Fig. 4 " V "), " S " region in the first socket 2 is Low ESR region, such high impedance areas and two adjacent complementations in Low ESR region, fall low-impedance mismatch, improve radio frequency electric property.

When the second socket 4 and the lower end of adapter 3 plug together, the first socket 2 plugs together with the upper end of adapter 3, the first socket 2 diameter of bore H=4.63, hole depth L=3 in socket, shoulder diameter of bore J=3.6, the wide S=0.3 of shoulder, socket the first center conductor 23 diameter G=0.93, the second outer conductor 31 internal diameter I=3.85 of adapter 3, the second center conductor 33 external diameter W=1.9 of adapter 3, width V=1.7, radio frequency electric property " voltage standing wave ratio " minimum while plugging together gap R=1mm.Radio frequency electric property " voltage standing wave ratio " maximum while plugging together gap R=2 and R=0, when actual use using R=1 as benchmark, majority plugs together in situation radio frequency electric property " voltage standing wave ratio " lower than utmost point maximum, to reach excellent radio frequency electric property (as Fig. 5) like this.

When upper end T shape second center conductor 33 of adapter 3 and the first center conductor 23 of the first socket 2 plug together, the second center conductor 33 of adapter 3 utilizes bowl-mouth shape (Fig. 3) guiding in aperture to prevent from by the first center conductor 23 of the first socket 2, the second center conductor 33 of adapter 3 being inserted bad.

By the description of above-mentioned structure and principle; person of ordinary skill in the field is to be understood that; the utility model is not limited to above-mentioned embodiment; on the utility model basis, adopt the improvement of techniques well known and substitute and all drop on protection range of the present utility model, should be limited by each claim.

Claims

1. a radio frequency (RF) coaxial connector, comprises body (1), and body (1) comprises the first socket (2) and the second socket (4) and is connected both adapters (3); The first socket (2) comprises the first outer conductor (21), the first center conductor (23) and is located at the first insulator (22) between the two; Adapter (3) comprises the second outer conductor (31), the second center conductor (33) and is located at the second insulator (32) between the two; The second socket (4) comprises the 3rd outer conductor (41), the 3rd center conductor (43) and is located at the 3rd insulator (42) between the two, it is characterized in that:

A. the first outer conductor (21) contact-making surface of described the first socket (2) is inner circular cylinder, the first center conductor (23) contact-making surface is external cylindrical surface, the second center conductor (33) end is T shape for being with flexible external shape, and inner openings is bowl-mouth shape;

B. the end of the top and bottom of second outer conductor (31) of described adapter (3) is and has elasticity and be provided with the radially fixture block with salient point;

C. the 3rd outer conductor (41) contact-making surface of described the second socket (4) be inner circular cylinder and bottom with radial slot, the 3rd center conductor (43) contact-making surface is inner circular cylinder.

2. a kind of radio frequency (RF) coaxial connector according to claim 1, it is characterized in that: the upper end of adapter (3) is plugged in the first socket (2), the upper end of second outer conductor (31) of the upper end of adapter (3) is connected with the first outer conductor (21) on the first socket (2), the upper end of the second center conductor (33) is connected with the first center conductor (23) on the first socket (2).

3. a kind of radio frequency (RF) coaxial connector according to claim 1, it is characterized in that: the lower end of adapter (3) is plugged in the second socket (4), the lower end of second outer conductor (31) of the lower end of adapter (3) is connected with the 3rd outer conductor (41) on the second socket (4), the lower end of the second center conductor (33) is connected with the 3rd center conductor (43) on the second socket (4).