CN201556702U

CN201556702U - Helical antenna structure

Info

Publication number: CN201556702U
Application number: CN2009201562848U
Authority: CN
Inventors: 袁世军; 王启芳
Original assignee: SHENZHEN CITY KANGYUANXIN COMMUNICATION TECHNOLOGY Co Ltd
Current assignee: SHENZHEN CITY KANGYUANXIN COMMUNICATION TECHNOLOGY Co Ltd
Priority date: 2009-06-12
Filing date: 2009-06-12
Publication date: 2010-08-18
Anticipated expiration: 2019-06-12

Abstract

The utility model discloses a helical antenna structure, which comprises a spring, an SMA radio frequency connector inner conductor, a magnetic core, an SMA radio frequency connector outer conductor and a rubber cap. A spring wire of the spring is provided with an extension section, the magnetic core is sleeved inside the spring, a longitudinal guide groove and a transverse groove engaged with the extension section are arranged on the magnetic core, the SMA radio frequency connector inner conductor is longitudinally connected to the end portion of the extension portion, and the rubber cap and the SMA radio frequency connector outer conductor are respectively positioned at two ends of the spring. By using special magnetic material as the magnetic core, the antenna has fine effect in short-term mutual coupling of electromagnetic waves, and special dielectric constant of the magnetic core leads length of the antenna to be greatly shortened, thereby facilitating clients in use.

Description

Helical antenna structure

[technical field]

Antenna, electromagnetic field microwave, radio, high frequency field

[background technology]

The antenna structure of traditional mode all adopts the straight line design, and its longer dimension can not satisfy existing consumer's requirement portable to electronic product, and its complex structure, is not easy to install, and outward appearance is attractive in appearance inadequately simultaneously, is unfavorable for promoting the use of.

[summary of the invention]

At the deficiencies in the prior art, the purpose of this utility model is intended to, and a kind of helical antenna structure is provided, and its size is little, and is easy to use.

For achieving the above object, the utility model adopts following technical scheme:

A kind of helical antenna structure, this antenna comprises spring, SMA radio frequency connector inner wire, magnetic core, SMA radio frequency connector outer conductor, Capsule, the spring wire of described spring has an extension, described magnetic core is set in the described spring, it is provided with vertical guide groove and transverse concave groove with described extension coupling, described SMA radio frequency connector inner wire vertically is connected in the end of described extension, and described Capsule and described SMA radio frequency connector outer conductor lay respectively at the two ends of described spring.

The inwall of described SMA radio frequency connector outer conductor is fixedlyed connected with described magnetic core.

The outer wall of described SMA radio frequency connector outer conductor is fixedlyed connected with described Capsule.

Described Capsule vertically has a blind hole along it, and described spring, SMA radio frequency connector inner wire, magnetic core are positioned at the cavity that described blind hole and described SMA radio frequency connector outer conductor are connected to form

The helical antenna structure that the utility model is set forth, its beneficial effect is:

Use helical antenna can length be reduced to the description thin wire antenna length of same frequency work 1/3rd or shorter.

This antenna because of possess have patent magnetic material as magnetic core, for electromagnetic wave during intercouple and played good effect, simultaneously, the dielectric constant that magnetic core is special makes the length of antenna shorten greatly, thereby has made things convenient for client's use.

[description of drawings]

Fig. 1 a, 1b are the axle side schematic diagrames of spring and magnetic core assembling

Fig. 2 a, 2b are the axle side schematic diagrames of antenna mount SMA connector outer conductor

Fig. 3 is the axle side schematic diagram of antenna mount Capsule

Fig. 4 is the cut-away view of antenna finished product

[embodiment]

This is a external antenna, and its structure comprises that the Capsule of SMA radio frequency connector outer conductor, SMA radio frequency connector inner wire, manganese steel spring, macromolecule organo-metallic material moulding magnetic core and the moulding of ABS plastic rubber material combines.

Integrally-built characteristics and effect thereof: shown in Fig. 1 a, 1b, 2a, 2b, 3,4,

1. described macromolecule organo-metallic material moulding magnetic core (a 400) wherein end (405) inserts in manganese steel spring (300) internal diameter of electroplating surface, and spring (300) is gone up bending position (301) and just in time is inserted in the groove position (401) on the magnetic core (400), and spring this moment (300) is gone up bending position (302) and is close to the cell wall (402) on the magnetic core (400) and stretches out magnetic core (400) and go up about 4 millimeters of plane (405).

2. assembling semi-finished product upper spring (300) the bending position (302) of described magnetic core (400) and spring (300) all insert in SMA radio frequency connector inner wire (200) endoporus (201) [be described magnetic core (400) with the assembling semi-finished product of spring (300) on magnetic core plane (405) go up endoporus plane (202) with SMA radio frequency connector inner wire (200) and stick together], and use the scolding tin mode to connect, described magnetic core this moment (400) is electrically connected with SMA radio frequency connector inner wire (200) with the assembling assembling semi-finished product upper springs (300) of spring (300).

3. described magnetic core (400), the assembling semi-finished product of spring (300) and SMA radio frequency connector inner wire (200) are when assembling with SMA radio frequency connector outer conductor (100), magnetic core (400), SMA radio frequency connector inner wire (200) most advanced and sophisticated (203) inserts between two parties in SMA radio frequency connector outer conductor (100) central bore (102) and to go up plane (404) to magnetic core (400) and go up plane (101) with SMA radio frequency connector outer conductor (100) and be close on the assembling semi-finished product of spring (300) and SMA radio frequency connector inner wire (200), this moment magnetic core (400), the assembling semi-finished product of spring (300) and SMA radio frequency connector inner wire (200) and SMA radio frequency connector (100) matched in clearance, be fixed on the SMA radio frequency connector outer conductor (100), and magnetic core (400), SMA radio frequency connector inner wire (200) stretches out from the threaded end of SMA radio frequency connector outer conductor (100) on the assembling semi-finished product of spring (300) and SMA radio frequency connector inner wire (200), during SMA radio frequency connector outer conductor (100) assembling, built-in aerial (1123) is gone up four button pin (211 on the primary antenna support (200), 212,213,214) just fasten PCB (400) both sides, thereby built-in aerial (1123) is decided just to play a part ground connection

4. described magnetic core (400); spring (300); when the assembling semi-finished product (1234) of SMA radio frequency connector outer conductor (100) and SMA radio frequency connector inner wire (200) assemble at the Capsule (500) with the moulding of ABS plastic rubber material; semi-finished product (1234) upper springs (300) and magnetic core (400) part are packed in Capsule (500) endoporus (501); and back-off (103) arranged on the radio frequency connector outer conductor (100); going up back-off position (502) with Capsule (500) crosses to draw and cooperates; play a part fixedly semi-finished product (1234) and Capsule (500), this moment Capsule and play a part protection antenna internal structure.

Claims

1. helical antenna structure, it is characterized in that, this antenna comprises spring, SMA radio frequency connector inner wire, magnetic core, SMA radio frequency connector outer conductor, Capsule, the spring wire of described spring has an extension, described magnetic core is set in the described spring, it is provided with vertical guide groove and transverse concave groove with described extension coupling, described SMA radio frequency connector inner wire vertically is connected in the end of described extension, and described Capsule and described SMA radio frequency connector outer conductor lay respectively at the two ends of described spring.

2. helical antenna structure as claimed in claim 1 is characterized in that, the inwall of described SMA radio frequency connector outer conductor is fixedlyed connected with described magnetic core.

3. helical antenna structure as claimed in claim 2 is characterized in that, the outer wall of described SMA radio frequency connector outer conductor is fixedlyed connected with described Capsule.

4. helical antenna structure as claimed in claim 3 is characterized in that described Capsule vertically has a blind hole along it, and described spring, SMA radio frequency connector inner wire, magnetic core are positioned at the cavity that described blind hole and described SMA radio frequency connector outer conductor are connected to form.