CN207303341U

CN207303341U - High bandwidth integrates the double frequency whip antenna of GPS

Info

Publication number: CN207303341U
Application number: CN201720470165.4U
Authority: CN
Inventors: 莫钢
Original assignee: GALTRONICS (WUXI) CO Ltd
Current assignee: GALTRONICS (WUXI) CO Ltd
Priority date: 2017-04-28
Filing date: 2017-04-28
Publication date: 2018-05-01
Anticipated expiration: 2027-04-28

Abstract

The double frequency whip antenna that a kind of high bandwidth integrates GPS, including sub-miniature A connector are the utility model is related to, it is characterized in that：The sub-miniature A connector includes SMA shells, the SMA being arranged on the inside of SMA shells shieldings ground, first insulator, SMA cores and second insulator, first insulator is arranged on the inside of SMA shieldings ground, SMA cores are arranged at one end on the inside of first insulator, and second insulator is arranged at the other end on the inside of first insulator；Copper wire is set in the inner side of the SMA chips and second insulator, one end of copper wire is connected with SMA core rivetings, and the other end and the fixing piece riveting of copper wire, fixing piece is together with flexible shaft line riveting；There is protective case the outside of the copper wire is cementing, 3M metal copper foils are posted in the outer surface of protective case.The utility model solves the contradiction of antenna length and performance, both ensure that length with short and thick antenna relatively, performance is even also advantageous over common whip antenna, and bandwidth is wider, meets the more multi-functional intercom demand of higher performance.

Description

High bandwidth integrates the double frequency whip antenna of GPS

Technical field

A kind of antenna is the utility model is related to, especially a kind of high bandwidth integrates the double frequency whip antenna of GPS, belongs to antenna Technical field.

Background technology

In interphone antenna field, whip antenna has the advantages that speech range is remote, call is clear, for U sections common For, although whip antenna has very big advantage in performance, its length is also more many than common short and thick length of antenna.

Whip antenna is using flexible shaft line or coaxial line structure, and short and thick antenna is using helical spring structure, institute With from a structural point, same frequency, whip antenna will be grown；Whip antenna is difficult to realize double frequency or three frequencies design, multiband Design generally integrates other a gps antenna to realize that multiband is designed by short and thick inner antenna, such to design not only property It can ensure, bandwidth wretched insufficiency because of two interacting for antenna, in the case where low frequency or high band speech quality are serious Drop.

The content of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of high bandwidth integrates the double of GPS Frequency whip antenna, solves the contradiction of antenna length and performance, both ensure that length with short and thick antenna relatively, performance is even Common whip antenna is also advantageous over, bandwidth is wider, meets the more multi-functional intercom demand of higher performance.

According to technical solution provided by the utility model, the high bandwidth integrates the double frequency whip antenna of GPS, including SMA Connector, it is characterized in that：The sub-miniature A connector include SMA shells, be arranged on the inside of SMA shells SMA shielding ground, first insulator, SMA cores and second insulator, first insulator are arranged on the inside of SMA shieldings ground, and SMA cores are arranged on the inside of first insulator One end, second insulator is arranged at the other end on the inside of first insulator；In the SMA chips and the inner side of second insulator Copper wire is set, and one end of copper wire is connected with SMA core rivetings, the other end and fixing piece riveting, fixing piece and the flexible shaft line of copper wire Riveting is together；There is protective case the outside of the copper wire is cementing, 3M metal copper foils are posted in the outer surface of protective case.

Further, the flexible shaft line is arranged on the inside of injection casing by locating piece, in flexible shaft line and injection casing End set closing cover.

Further, the SMA shieldings ground and SMA cores are isolated by first insulator.

The utility model has the following advantages：

（1）The utility model can shorten whip antenna length, make product aesthetics higher；

（2）The utility model can lift product bandwidth, and speech quality especially marginal frequency call is greatly improved；

（3）The utility model is designed using two-band, and especially GPS bandwidths are especially wide, can be applicable in GPS Big Dippeves etc. at the same time Deng the different demands of positioning.

Brief description of the drawings

Fig. 1 is the structure diagram for the double frequency whip antenna that high bandwidth described in the utility model integrates GPS.

Description of reference numerals：1-SMA shells, 2-SMA shieldings ground, 3- first insulators, 4-SMA cores, 5- second insulate Body, 6-3M metal copper foils, 7- protective cases, 8- copper wire, 9- fixing pieces, 10- flexible shaft lines, 11- locating pieces, 12- closing covers, 13- notes Mould shell.

Embodiment

With reference to specific attached drawing, the utility model is described in further detail.

As shown in Figure 1, the double frequency whip antenna that high bandwidth described in the utility model integrates GPS includes sub-miniature A connector, SMA connects Head includes SMA shells 1, the SMA being arranged on the inside of SMA shells 1 shieldings ground 2, first insulator 3, SMA cores 4 and second and insulate Body 5, first insulator 3 are arranged at 2 inner side of SMA shieldings ground, and SMA cores 4 are arranged at one end of the inner side of first insulator 3, and second Insulator 5 is arranged at the other end of the inner side of first insulator 3；In the inner side of the SMA chips 4 and second insulator 5, copper is set Line 8, one end of copper wire 8 are connected with SMA cores 4 by riveting, the other end and 9 riveting of fixing piece of copper wire 8, in the copper wire 8 Outside it is cementing have protective case 7,3M metal copper foils 6 are posted in the outer surface of protective case 7；The fixing piece 9 and the one of flexible shaft line 10 Hold riveting together, flexible shaft line 10 ensures position in a mold by locating piece 11, and it is outer to be then molded formation injection by heat Shell 13, sets closing cover 12 on the other end and injection casing 13 of flexible shaft line 10.

High bandwidth described in the utility model integrates the double frequency whip antenna of GPS, is inserted into copper wire 8 using in antenna tail end, covers Lid 3M metal copper foils 6 are used as oscillating circuit, antenna is formed two different frequency ranges, a frequency range is metal flexible shaft line 10 itself The standard intercommunication frequency range of formation, this is the antenna of 1/4 wavelength of a standard, and second frequency range is produced at 1/2 wavelength, is passed through Adjustment aluminium foil can wait until extraordinary second frequency range of performance, i.e. GPS taking human as the bandwidth and frequency of second frequency range of control Frequency range, while do not influence the performance of first frequency range again.

Copper wire forms a small-sized oscillating circuit with copper foil, makes the half-wavelength of antenna generation by adjusting the size of copper foil Resonant frequency just falls on GPS frequency ranges, and the length of flexible shaft line in itself is just the intercommunication frequency range of 1/4 wavelength, is formed with this One dual-band antenna, can be easy to the length of adjustment antenna in itself, due to antenna intercommunication frequency range according to intercom frequency range Itself without any other factor influence, therefore its performance maintain completely whip antenna high-performance high-frequency it is wide the advantages of, And GPS frequency ranges are also from intercommunication frequency range frequency multiplication, so performance is equally very outstanding, this design is produced than helical spring antenna Raw GPS frequency range performances are more excellent, and the GPS that most importantly helical spring antenna produces is due to structure, receptivity master Will be in the lower half spherical radiation of intercom, gps signal derives from satellite, so lower section excellent performance is to no avail, only episphere Could preferably it position, and this completely no problem of this whiplike GPS dual-radio designs, main performance is all in episphere, upper half Ball efficiency improves more than 50% than spring antenna, and from the test result of laboratory and reality it is also seen that coming, this design is fixed Faster, the probability of drift or lossing signal is lower for position.

Typical whip antenna is due to being not GPS frequency ranges in the position of half-wavelength（The for example intercommunication frequency range of 400MHz, frequency multiplication Near 800Mhz, and GPS is 1575Mhz）, and the performance of far poor 1/4 wavelength location of mistake of frequency doubling property, because can only conduct Single-band antenna uses, and although spring antenna is easier a GPS frequency range, but because two antenna distances are too near, It can be mutually coupled, seriously affect the bandwidth of intercommunication frequency range, the intercommunication frequency range of script spring antenna is just not so good as whip antenna, introduces More deteriorate after GPS, antenna described in the utility model can be easy to avoid these situations.

Claims

1. a kind of high bandwidth integrates the double frequency whip antenna of GPS, including sub-miniature A connector, it is characterized in that：The sub-miniature A connector includes SMA Shell（1）, be arranged at SMA shells（1）The SMA shieldings ground of inner side（2）, first insulator（3）, SMA cores（4）With the second insulation Body（5）, first insulator（3）It is arranged at SMA shieldings ground（2）Inner side, SMA cores（4）It is arranged at first insulator（3）Inner side One end, second insulator（5）It is arranged at first insulator（3）The other end of inner side；In the SMA chips（4）With the second insulation Body（5）Inner side set copper wire（8）, copper wire（8）One end and SMA cores（4）Riveting connects, copper wire（8）The other end with it is solid Determine part（9）Riveting, fixing piece（9）With flexible shaft line（10）Riveting is together；In the copper wire（8）Outside cementing have protective case （7）, protective case（7）Outer surface post 3M metal copper foils（6）.

2. high bandwidth as claimed in claim 1 integrates the double frequency whip antenna of GPS, it is characterized in that：The flexible shaft line（10）It is logical Cross locating piece（11）It is arranged on injection casing（13）Inner side, in flexible shaft line（10）And injection casing（13）End set closing cover （12）.

3. high bandwidth as claimed in claim 1 integrates the double frequency whip antenna of GPS, it is characterized in that：The SMA shieldings ground（2） With SMA cores（4）By first insulator（3）Isolation.