CN206697595U

CN206697595U - A kind of handset switch combined antenna

Info

Publication number: CN206697595U
Application number: CN201720600720.0U
Authority: CN
Inventors: 潘秋波
Original assignee: Huizhou Speed Wireless Technology Co Ltd
Current assignee: Huizhou Speed Wireless Technology Co Ltd
Priority date: 2017-05-26
Filing date: 2017-05-26
Publication date: 2017-12-01
Anticipated expiration: 2027-05-26

Abstract

It the utility model is related to antenna for mobile phone field, specifically disclose a kind of handset switch combined antenna, including antenna body and PCB main board, the antenna body includes distributing point, earth point and switch access point, distributing point and earth point the connection PCB mainboard, switch matching network circuit is provided with the PCB main board, the switch matching network circuit is connected with switch access point.The utility model switchs matching network circuit by setting, first determine the resonance conditions of initial each path, carry out switching the setting of each frequency range again, by antenna body main resonance or so frequency deviation debug the length of switch ways microstrip line, without changing the use function of switch, the increase of switch ways microstrip line physical length make it that resonance is deeper, and bandwidth is wider, and the setting of variable connector state can cover broader frequency range in the confined space so that the performance of antenna for mobile phone is more preferable.

Description

A kind of handset switch combined antenna

Technical field

It the utility model is related to antenna for mobile phone field, more particularly to a kind of handset switch combined antenna.

Background technology

The rapid development of communications industry, smart mobile phone turn into the market mainstream already, in order to meet the aesthetic of user with using Demand, texture, outward appearance and the various intelligent functions of mobile phone all become one of factor of people's consideration, and smart mobile phone is all towards doing It is thin to do big direction and develop, and metal has inherent texture, therefore, metal shell design is increasingly by the joyous of masses Meet.But with the intervention of metal appearance, the exploitation of antenna is allowed to become more and more difficult, the using area of antenna becomes increasingly Small, traditional antenna can not cover all frequency ranges to meet various intelligent demands in limited space.

Utility model content

For above-mentioned technical problem, the utility model provides a kind of can cover wider frequency model in the confined space Enclose, the handset switch combined antenna that switched tuning effect is more excellent.

In order to solve the above-mentioned technical problem, concrete scheme of the present utility model is as follows：A kind of handset switch combined antenna, bag Include antenna body and PCB main board, the antenna body includes distributing point, earth point and switch access point, the distributing point and connects Place connection PCB mainboard, switch matching network circuit is provided with the PCB main board, the switch matching network circuit is with opening Access point connects.

Preferably, the switch matching network circuit includes switch control chip, the switch being connected with switch control chip Path matching body, switch and switch ways microstrip line, by switch access point access switch control chip, then pass through switch ways Matching body crosses switch ways microstrip line access PCB main board.

Preferably, the switch matching network circuit is arranged on the empty regions of the PCB main board, advantageously ensures that switch The normal work of matching network circuit.

Preferably, the switch ways matching body is inductively or capacitively, the magnitude range of electric capacity and inductance can be according to reality Antenna requirements are set, and flexibility is strong.

Preferably, the quantity of the switch ways matching body is at least two, and multiple switch path matching body is set can be with Cover broader frequency range so that the performance of antenna for mobile phone is more preferable.

Preferably, the switch control chip is connected with switch access point.

Preferably, the switch is single-pole single-throw switch (SPST) or single pole multiple throw.

Preferably, the width of the switch ways microstrip line is more than 0.1mm, and its periphery headroom is more than 1mm, can make tune It is more excellent to try effect.

Preferably, the antenna body form is PIFA, IFA, LOOP, metal edge frame, narrow frame, three-stage and U-lag In any one, make antenna optimization have more selections.

Compared with prior art, the beneficial effects of the utility model are：Matching network circuit is switched by setting, first really Resonance conditions of fixed initial each path, then switch the setting of each frequency range, by antenna body main resonance or so frequency deviation come Debug the length of switch ways microstrip line, without changing the use function of switch, switch ways microstrip line physical length Increase make it that resonance is deeper, and bandwidth is wider, changes the limitation of former matching and debugging, and the variable connector state in the confined space Setting can cover broader frequency range so that the performance of antenna for mobile phone is more preferable, allows antenna prioritization scheme to have more Selection.

Brief description of the drawings

Fig. 1 is entire block diagram of the present utility model；

Fig. 2 is the structured flowchart of antenna body of the present utility model；

Fig. 3 is the structured flowchart of PCB main board of the present utility model；

Fig. 4 is the contrast resonance figure of the utility model embodiment；

Fig. 5 and Fig. 6 is the contrast efficiency chart of the utility model embodiment；

Wherein, 1 is antenna body；2 be switch matching network circuit；3 be PCB main board；4 be switch access point；5 be feed Point；6 be earth point；7 be switch control chip；8 be first switch path matching body；9 be second switch path matching body；10 are 3rd switch ways matching body；11 be the 4th switch ways matching body；12 be switch；13 be switch ways microstrip line.

Embodiment

In order that those skilled in the art is better understood from the technical solution of the utility model, below in conjunction with the accompanying drawings to this The technical scheme of utility model is further elaborated.

As Figure 1-3, a kind of handset switch combined antenna, including antenna body 1 and PCB main board 3, the antenna body 1 includes distributing point 5, earth point 6 and switch access point 4, and switch access point 4 is arranged on the centre of antenna to stub area, fed 5 and the connection PCB mainboard 3 of earth point 6 are put, switch matching network circuit 2, the switch pair net are provided with the PCB main board 3 Network circuit 2 is connected with switch access point 4.

Switch 12 is traditional single-pole single-throw(SPST or single pole multiple throw, and switch 12 is adjusted according to common debud mode Examination, and the length of switch ways microstrip line 13 includes antenna and antenna body 1 forms completed antenna.

Switch matching network circuit 2 is arranged on the empty regions of the PCB main board 3, including switch control chip 7, with opening Switch ways matching body, switch 12 and switch ways microstrip line 13 that control chip 7 connects are closed, switch ways microstrip line 13 Width is more than 0.1mm, and its periphery headroom is more than 1mm, logical by the access switch control chip 7 of switch access point 4, then by switching Road matching body crosses switch ways microstrip line 13 and accesses PCB main board 3.

Switch ways matching body is inductively or capacitively, the magnitude range of electric capacity and inductance can set according to actual antennas demand Put, and its quantity is at least two, multiple switch path matching body, which is set, can cover broader frequency range so that mobile phone day The performance of line is more preferable.

Switch ways matching body shares four, and first switch path matching body 8, second switch path matching body the 9, the 3rd are opened Path matching body 10 and the 4th switch ways matching body 11 are closed, the length of individual channel to the switch ways microstrip line 13 on ground differs Sample, also can be different in the size of individual channel frequency deviation with frequency range, and the length of switch ways microstrip line 13 is led humorous depending on antenna body 1 Left and right frequency deviation shake to be debugged, the change centering high frequency effect of its length becomes apparent from, and we can be by switch during Antenna Operation Normal principle selects different switching pathways and switch ways matching body, different antenna conditions is debugged, to reach wideband Effect.

Embodiment：As shown in figure 4, it is contrast optimization 1800mHz-2100mHz resonance figures, wherein switch 12 uses hilted broadsword four Throw switch, contrast test is carried out by first switch path matching body 8, reset condition only changes first switch path matching body 8 matching value, first switch path matching body 8 here is electric capacity, and its matching value is 3.3pf, now occurs one preferably Resonance, as shown in lines A, the matching value of first switch path matching body 8 is then remained 0 ohm again, only change first The physical length and width of switch ways microstrip line 13 corresponding to switch ways matching body, a more preferable resonance can be obtained, As indicated by line b, the contrast test figure of two states efficiency is as shown in Figure 5,6.

Test result according to Fig. 5 and Fig. 6 can find that the length of debugging switch ways microstrip line 13 is compared with width Former common switch ways matching body debugging, is deepened in the frequency band resonance to be optimized, and bandwidth broadens, and in 1800mHz- 2100mHz sections, peak efficiencies improve 10% or so, and most of frequency improved efficiency is more than 5%, in 2500mHz-2700mHz sections, Peak efficiencies improve 5% or so.

Described above is the preferable embodiment of the utility model, in the case of the utility model design is not departed from, is carried out Any obvious deformation and replacement, belong to the scope of protection of the utility model.

Claims

1. a kind of handset switch combined antenna, including antenna body（1）And PCB main board（3）, the antenna body（1）Including feedback Electric point（5）, earth point（6）With switch access point（4）, it is characterised in that：The distributing point（5）And earth point（6）Connection PCB master Plate（3）, the PCB main board（3）On be provided with switch matching network circuit（2）, the switch matching network circuit（2）With switch Access point（4）Connection.

2. handset switch combined antenna according to claim 1, it is characterised in that：The switch matching network circuit（2） Including switch control chip（7）, with switch control chip（7）Switch ways matching body, the switch of connection（12）And switch is logical Road microstrip line（13）.

3. handset switch combined antenna according to claim 2, it is characterised in that：The switch matching network circuit（2） It is arranged on the PCB main board（3）Empty regions.

4. handset switch combined antenna according to claim 3, it is characterised in that：The switch ways matching body is electric capacity Or inductance.

5. handset switch combined antenna according to claim 4, it is characterised in that：The quantity of the switch ways matching body For at least two.

6. handset switch combined antenna according to claim 5, it is characterised in that：The switch control chip（7）With opening Access point（4）Connection.

7. handset switch combined antenna according to claim 6, it is characterised in that：The switch（12）Opened for single-pole single-throw(SPST Pass or single pole multiple throw.

8. handset switch combined antenna according to claim 7, it is characterised in that：The switch ways microstrip line（13）'s Width is more than 0.1mm, and its periphery headroom is more than 1mm.

9. handset switch combined antenna according to claim 8, it is characterised in that：The antenna body（1）Form is Any one in PIFA, IFA, LOOP, metal edge frame, narrow frame, three-stage and U-lag.