CN105027352A

CN105027352A - Antenna and terminal

Info

Publication number: CN105027352A
Application number: CN201380003611.5A
Authority: CN
Inventors: 王汉阳; 徐慧梁; 陈丽娜; 应李俊
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2013-12-27
Filing date: 2013-12-27
Publication date: 2015-11-04
Anticipated expiration: 2033-12-27
Also published as: CN105027352B; WO2015096132A1

Abstract

Provided are an antenna and a terminal. The antenna comprises: a first antenna branch, a second antenna branch, a third antenna branch, a feed branch and a grounding branch. The first antenna branch, the feed branch and the grounding branch constitute a first PIFA antenna which generates a first resonance frequency; the second antenna branch, the feed branch and the grounding branch constitute a second PIFA antenna which generates a second resonance frequency; and the third antenna branch, the feed branch and the grounding branch constitute a loop antenna which generates a third resonance frequency, wherein the electrical size of the loop antenna is 1/2 of a wavelength corresponding to the third resonance frequency. The operating bandwidth of the antenna provided in the embodiments of the present invention can be expanded to a wider frequency band, and thus can be applied to an electronic device with a wide frequency band. The antenna has a wide application range.

Description

Antenna and terminal

Technical field

The present invention relates to communication technical field, more particularly to a kind of antenna and terminal.Background technology

With continuing to develop for the communication technology, user requires the bandwidth of operation of mobile terminal more and more higher, and terminal antenna is as a kind of miniature antenna, and the more and more thinner of apparent size design is less and less.Therefore, the demand to the antenna with compact size and the wide multiband resonance of working frequency range becomes increasing.

In the prior art, for resonance is in the antenna that multiband works, by taking antenna of the resonance in three band operations as an example, traditional Antenna Design is one three frequency resonant antenna of PIFA antennas and a parasitic minor matters composition by a double-frequency resonance.Wherein, the PIFA antennas of double-frequency resonance can be operated in 900MHZ and 1800MHZ, parasitic minor matters can expand the bandwidth of high frequency, such as antenna needs to be operated in 1900MHZ or 2100MHZ, parasitic minor matters can be increased by the feeder line of double-frequency resonance PIFA antennas, so as to so that the PIFA antennas high frequency bandwidth of double-frequency resonance is extended to 1900MHZ or 2100MHZ from 1800MHZ.

With the development of technology, antenna needs to be operated in increasingly wider frequency band, and traditional antenna is difficult to the demand for meeting future development, therefore, and traditional antenna can not be suitable for being operated in wide band terminal device.The content of the invention

The embodiment of the present invention provides a kind of antenna and terminal, goes in wide band terminal device, increases the scope of application of antenna.

First aspect of the embodiment of the present invention provides a kind of antenna, including：First antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first end, the first end of the second antenna minor matters, the first end of the third antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；

The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, The first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute the 2nd PIFA antennas with the feed minor matters, the ground connection minor matters, and the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength.

With reference in a first aspect, in the first possible embodiment of first aspect, the vertical height between plane and the PCB where the first antenna minor matters, the second antenna minor matters and the third antenna minor matters is between the gangster of 3 gangster -5.

With reference to the first possible embodiment of first aspect or first aspect, in second of possible embodiment of first aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, wherein, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

With reference to the first possible embodiment of first aspect or first aspect, in first aspect in the third possible embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the PCB of the bonnet.

Any one of the third possible embodiment with reference to first aspect to first aspect, in the 4th kind of possible embodiment of first aspect, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are " F " type structure, and the first end of the third antenna minor matters is electrically connected with the first end of the first antenna minor matters and the first end of the second antenna minor matters respectively.

With reference to the 4th kind of possible embodiment of first aspect, in the 5th kind of possible embodiment of first aspect, the second antenna minor matters are located at the first edge side of the PCB, and the third antenna minor matters are located at the second edge side of the PCB.

Any one of the third possible embodiment with reference to first aspect to first aspect, in the 6th kind of possible embodiment of first aspect, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are " E " type structure, and the first end of the third antenna minor matters is flushed with the first end of the first antenna minor matters and the first end of the second antenna minor matters.

With reference to the 6th kind of possible embodiment of first aspect, in the 7th kind of possible reality of first aspect Apply in mode, the antenna is located at any edge side of the PCB.

A kind of antenna provided in an embodiment of the present invention, the 1/2 of the 3rd resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting third antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the 3rd resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band terminal device, increase the scope of application of antenna.

Second aspect of the present invention provides a kind of antenna, including：First antenna minor matters, the second antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first end, the first end of the second antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters is electrically connected with the second end of the second antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；

The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute loop aerial with the feed minor matters, the ground connection minor matters, and the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength.

With reference to second aspect, in the first possible embodiment of second aspect, the vertical height between plane and the PCB where the first antenna minor matters and the second antenna minor matters is between the gangster of 3 ware -5.

With reference to the first possible embodiment of second aspect or second aspect, in second of possible embodiment of second aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

With reference to the first possible embodiment of second aspect or second aspect, in the third possible embodiment of second aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the PCB of the bonnet.

With reference to the third possible embodiment of second possible embodiment or second aspect of second aspect, in the 4th kind of possible embodiment of second aspect, the first antenna minor matters and the second antenna minor matters are " " type structure, the first end of the first antenna minor matters and the second antenna minor matters First end flush.

A kind of antenna provided in an embodiment of the present invention, the 1/2 of the second resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting the second antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the second resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band terminal device, increase the scope of application of antenna.

Third aspect present invention provides a kind of terminal, including：RF processing unit, baseband processing unit and antenna；Wherein, the antenna includes first antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first end, the first end of the second antenna minor matters, the first end of the third antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on the PCB, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute the 2nd PIFA antennas with the feed minor matters, the ground connection minor matters, and the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength;

The antenna, for giving the RF processing unit by the transmission of wireless signals received, or is converted to electromagnetic wave by the transmission signal of RF processing unit, sends；The RF processing unit, wireless signal for being received to the antenna carries out frequency-selecting, amplification, down-converted, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to the baseband processing unit, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent are sent by up-conversion, amplification by the antenna；The baseband processing unit, is handled the intermediate-freuqncy signal or the baseband signal received.

With reference to the third aspect, in the first possible embodiment of the third aspect, the vertical height between plane and the PCB where the first antenna minor matters, the second antenna minor matters and the third antenna minor matters is between the gangster of 3 gangster -5.

With reference to the first possible embodiment of the third aspect or the third aspect, in second of possible embodiment of the third aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of the terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, wherein, the antenna holder is arranged on the one side towards the bonnet of the PCB, the first antenna minor matters, The second antenna minor matters and the third antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

With reference to the first possible embodiment of the third aspect or the third aspect, in the third possible embodiment of the third aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the PCB of the bonnet.

Any one of the third possible embodiment with reference to the third aspect to the third aspect, in the 4th kind of possible embodiment of the third aspect, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are " F " type structure, and the first end of the third antenna minor matters is electrically connected with the first end of the first antenna minor matters and the first end of the second antenna minor matters respectively.

With reference to the 4th kind of possible embodiment of the third aspect, in the 5th kind of possible embodiment of the third aspect, the second antenna minor matters are located at the first edge side of the PCB, and the third antenna minor matters are located at the second edge side of the PCB.

Any one of the third possible embodiment with reference to the third aspect to the third aspect, in the 6th kind of possible embodiment of the third aspect, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are " E " type structure, and the first end of the third antenna minor matters is flushed with the first end of the first antenna minor matters and the first end of the second antenna minor matters.

With reference to the 6th kind of possible embodiment of the third aspect, in the 7th kind of possible embodiment of the third aspect, the antenna is located at any edge side of the PCB.

A kind of terminal provided in an embodiment of the present invention, the 1/2 of the 3rd resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting third antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the 3rd resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band terminal device, increase the scope of application of antenna.

Fourth aspect present invention provides a kind of terminal, including：RF processing unit, baseband processing unit and antenna；

Wherein, the antenna includes：First antenna minor matters, the second antenna minor matters, feed minor matters and ground connection minor matters, first end, the first end of the second antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters is electrically connected with the second end of the second antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；The first antenna branch Section constitutes the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute loop aerial with the feed minor matters, the ground connection minor matters, and the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength;

With reference to fourth aspect, in the first possible embodiment of fourth aspect, the vertical height between plane and the PCB where the first antenna minor matters and the second antenna minor matters is between the gangster of 3 ware -5.

With reference to the first possible embodiment of fourth aspect or fourth aspect, in second of possible embodiment of fourth aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

With reference to the first possible embodiment of fourth aspect or fourth aspect, in the third possible embodiment of fourth aspect, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the PCB of the bonnet.

With reference to the third possible embodiment of second possible embodiment or fourth aspect of fourth aspect, in the 4th kind of possible embodiment of fourth aspect, the first antenna minor matters and the second antenna minor matters are " " type structure, and the first end of the first end of the first antenna minor matters and the second antenna minor matters is flushed.

A kind of terminal provided in an embodiment of the present invention, the 1/2 of the second resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting the second antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the second resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band terminal device, increase the scope of application of antenna. Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, the structure that other accompanying drawings 1 apply example one for the antenna that the present invention is provided can also be obtained according to these accompanying drawings

Fig. 2 applies the structure of example two for the antenna that the present invention is provided

Fig. 3 applies the return loss of example two for the day ^ that the present invention is provided

Fig. 4 applies the efficiency analogous diagram of example two for the day ^ that the present invention is provided；

Fig. 5 applies the structural representation of example three for the day ^ that the present invention is provided；

Fig. 6 applies the return loss of example three for the day ^ that the present invention is provided

Fig. 7 applies the efficiency analogous diagram of example three for the day ^ that the present invention is provided

Fig. 8 applies the knot Hiiragi of example four for the day ^ that the present invention is provided

Fig. 9 applies the knot Hiiragi of example five for the day ^ that the present invention is provided

The echo for the day embodiment five that Figure 10 provides for the present invention

The terminal embodiment one that Figure 11 provides for the present invention

The terminal embodiment two that Figure 12 provides for the present invention

Description of reference numerals

11：First antenna minor matters； 12：Second antenna minor matters; 13：Third antenna minor matters; 14：Feed minor matters； 15：It is grounded minor matters； 16： PCB;

17：Antenna feed end； 18：Earth terminal； 19：Antenna holder； 20：PCB first edge side；21 PCB second edge side； 111：Second end 121 of the first antenna minor matters of first end 112 of first antenna minor matters：Second end 131 of the antenna minor matters of first end 122 second of the second antenna minor matters：Second end 141 of the third antenna minor matters of first end 132 of third antenna minor matters：Feed the first end of minor matters；Second end of 142 feed minor matters； 151：It is grounded the first end of minor matters；Second end of 152 ground connection minor matters； 41：RF processing unit； 42 :Baseband processing unit; 43：Antenna； 31：First antenna minor matters;Second antenna minor matters；

33 feed minor matters； 34：It is grounded minor matters; 35： PCB;

36 antenna feed ends; 37：Earth terminal； 38：Antenna holder；

39 PCB first edge side； 40：PCB second edge side；

The first end of 311 first antenna minor matters; 312：Second end of first antenna minor matters

The first end of 321 second antenna minor matters; 322：Second end of the second antenna minor matters

The first end of 331 feed minor matters； 332：Feed the second end of minor matters；

The first end of 341 ground connection minor matters； 342：It is grounded the second end of minor matters;

44：RF processing unit； 45:Baseband processing unit； 46:Antenna.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Multiband resonant antenna can be worked by certain radiation mechanism in several different frequency ranges.And the different working frequency range of correspondence, due to the difference of working frequency, the electric size of respective antenna is different.Antenna is worked well in each working frequency range, it is necessary to the resonant frequency of operation point of designing antenna, that is, determine the optimal electric size of the antenna of each frequency range.If Antenna Operation is on different resonance points, antenna can be made in each working frequency range, with preferable performance.

Usually, antenna has several working frequency range just to have several resonant frequencies, so as to realize antenna multiband preferably working condition.The embodiments of the invention provide a kind of antenna, such as tri-band antenna, it can have three resonant frequencies, may be used in three different band operation scenes, for example：WLAN（Wireless Local Area Networks, hereinafter referred to as WLAN) scene of antenna, compound WLAN and global positioning system (Global Positioning System, hereinafter referred to as GPS) antenna scene, Long Term Evolution（Long Term Evolution, hereinafter referred to as LTE) diversity antenna and LTE primary antennas scene etc..

The structural representation for the antenna embodiment one that Fig. 1 provides for the present invention.It should be noted that the connection that Fig. 1 is able to each antenna minor matters in antenna in the clearer explanation embodiment of the present invention is closed Antenna in system or corresponding position, and a kind of simply signal of the antenna structure in the embodiment of the present invention, the embodiment of the present invention can also have other structures, be not restricted to the structure shown in Fig. 1.It can be made referrals in embodiment of the other structures of antenna below in the embodiment of the present invention.

As shown in figure 1, the antenna includes：First antenna minor matters 11, the second antenna minor matters 12, third antenna minor matters 13, feed minor matters 14 and ground connection minor matters 15;Wherein, first end 11 1, the first end 121 of the second antenna minor matters 12, the first end 131 of third antenna minor matters 13 of the first end 141 of the feed minor matters 14 respectively with first antenna minor matters 11 are electrically connected, and the second end 142 of feed minor matters 14 is electrically connected with the antenna feed end 17 on PCB16；The first end 151 of ground connection minor matters 15 is electrically connected with the second end 132 of third antenna minor matters 13, and the second end 152 of ground connection minor matters 15 is electrically connected with the earth terminal 18 on PCB16；The first antenna minor matters 11 constitute the first PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters 12 constitute the 2nd PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters 13, feed minor matters 14 and ground connection minor matters 15 constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength.

Wherein, the first resonant frequency can be 2. 4GHz-2. 5GHz, and the centre frequency of the second resonant frequency can be 5. 2GHz, and the centre frequency of the 3rd resonant frequency can be 5. 8GHz.

Specifically, as shown in figure 1, first antenna minor matters 11, feed minor matters 14 and ground connection minor matters 15 constitute the first PIFA antennas；Wherein, the first end 141 of feed minor matters 14 is electrically connected with the first end 111 of first antenna minor matters 11, and the second end 142 of feed minor matters 14 is electrically connected with the antenna feed end 17 on PCB16.By setting the electric size length of the first PIFA antennas to cause the first PIFA antennas to produce the first resonant frequency.Wherein, first resonant frequency can be 2. 4GHz.The electric size length of first PIFA antennas can be the 1/4 of the corresponding wavelength of the first resonant frequency, and the electric size length of the first PIFA antennas can be the electrical length via feed minor matters 14 to the second end 112 of first antenna minor matters 11 from PCB16 antenna feed end 17.Here the 1/4 of the corresponding wavelength of the first resonant frequency can be the electrical length calculated according to the 4GHz of resonant frequency 2..

Second antenna minor matters 12 constitute the 2nd PIFA antennas with feed minor matters 14, ground connection minor matters 15；Wherein, the first end 141 of the feed minor matters 14 is electrically connected with the first end 121 of the second antenna minor matters 12, and the second end 142 of feed minor matters 14 is electrically connected with the antenna feed end 17 on PCB16.By setting the electric size length of the 2nd PIFA antennas that the 2nd PIFA antennas can be caused to produce the second resonant frequency, wherein, Second resonant frequency can be 5. 2GHz, and the electric size length of the 2nd PIFA antennas can be the electrical length from antenna feed end 17 via the second end 122 of the feed antenna of minor matters 14 to the second minor matters 12.Here the electric size length of the 2nd PIFA antennas is the 1/4 of the corresponding wavelength of the second resonant frequency, and the 1/4 of the corresponding wavelength of the second resonant frequency here can be the electrical length calculated according to the 2GHz of resonant frequency 5..

It should be noted that the position of the antenna minor matters 12 of first antenna minor matters 11 and second is one simply illustrative in Fig. 1, first antenna minor matters 11 can be parallel with the second antenna minor matters 12, can also be not parallel with the second antenna minor matters 12（Fig. 1 shows a case that the two is not parallel）As long as ensuring that the first end 121 of the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11 is electrically connected with feeding the first end 141 of minor matters 14, there is suitable gap between the second end 112 of first antenna minor matters 11 and the second end 122 of the second antenna minor matters 12.

Third antenna minor matters 13 constitute loop aerial with feed minor matters 14, ground connection minor matters 15, by the way that the electric size of the loop aerial is set into the 1/2 of the 3rd resonant frequency corresponding wavelength, so that the loop aerial constituted produces the 3rd resonant frequency, the 3rd resonant frequency can be 5. 8GHz;Here the electric size of loop aerial actually refers to antenna feed end 17 and reaches the electrical length that earth terminal 18 is constituted via feed minor matters 14, third antenna minor matters 13, ground connection minor matters 15, that is, is exactly loop aerial electric size.The design of loop aerial, so that PCB16 only has 18 two contact points of antenna feed end 17 and earth terminal with antenna, and be increased without extra parasitic minor matters to produce the 3rd resonant frequency, it is possible to the bandwidth of operation of antenna is expanded, it is also possible that the volume of antenna reduces.Here the 1/2 of the corresponding wavelength of the 3rd resonant frequency can be the electrical length calculated according to the 8GHz of frequency 5..

Current signal after terminal inner is needed processing is gone out by aerial radiation, then current signal flows through the earth terminal 18 that feed minor matters 14, corresponding antenna minor matters and ground connection minor matters 15 reach PCB by the antenna feed end 17 on PCB16, form resonant tank to produce radiation field, current signal is radiate in the form of an electromagnetic wave.Assuming that the current signal of terminal inner processing is the signal that centre frequency is 5. 8GHz frequency ranges, then the current signal enters one closed loop of formation of earth terminal 18 that feed minor matters 14, third antenna minor matters 13 and ground connection minor matters 15 reach PCB16 by antenna feed end 17, so as to produce radiation field, the current signal is radiate in the form of an electromagnetic wave；It should be noted that, the current signal also can in the form of an electromagnetic wave be radiate by the first PIFA antennas and the 2nd PIFA antennas, only because loop aerial can be operated in the 3rd resonant frequency, therefore the electromagnetic wave signal intensity being radiate via loop aerial is compared with the first PIFA antennas and the 2nd PIFA The electromagnetic intensity of aerial radiation is big, it is easy to which the electronic equipment of opposite end is received.It should be noted that, merely just simply describe the process for current signal being sent by antenna, the electromagnetic wave signal of corresponding band is received using the antenna in the embodiment of the present invention, and it is similar with the principle of the transmission process that the electromagnetic wave signal is converted to the principle of the process of current signal, will not be repeated here.

The embodiment of the present invention provides a kind of antenna, the 1/2 of the 3rd resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting third antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the 3rd resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band electronic equipment, increase the scope of application of antenna.

Further, on the basis of above-described embodiment, the vertical height between plane and PCB16 where the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 can be between the gangster of 3 gangsters _ 5, can so to cause antenna only to need less space inside occupied terminal just to widen the working band of oneself.

Can specifically there are two kinds of embodiments, be respectively：

The first embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder 19, the PCB16 and antenna holder 19 are located in the cavity, wherein, the antenna holder 19 is arranged on the PCB16 one side towards the bonnet, and the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on the one side towards the bonnet of the antenna holder 19.

Specifically, being referred to Fig. 1, the position relationship of each minor matters in antenna holder 19 and the antenna is shown in Fig. 1（The protecgulum and bonnet of terminal not shown in Fig. 1）The antenna holder 19 is arranged on the one side of the bonnet of PCB16 terminaloriented, the first antenna minor matters 11 of the antenna, the second antenna minor matters 12 and third antenna minor matters 13 are arranged in the approximately the same plane of antenna holder 19, and the plane is the one side of the terminaloriented bonnet of antenna holder 19.Gp, the plane where the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 and the vertical height between PCB16 can be caused to be maintained between the gangster of 3 wares _ 5 by antenna holder 19, so that the antenna takes the space of less terminal inner.

Second of embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB16 is located in the cavity, and the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on the one side towards PCB16 of the bonnet.

Specifically, first antenna minor matters 11, the second antenna minor matters 12 and third antenna in the antenna Minor matters 13 are in approximately the same plane, and the plane is the one side towards PCB16 of terminal bonnet, i.e. first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are located at a plane of terminal bonnet, and the plane is the one side towards PCB16 of terminal bonnet, the vertical height between the plane and PCB16 at first antenna minor matters 11, the second antenna minor matters 12 and the place of third antenna minor matters 13 can so be caused between the gangster of 3 ware -5, so that the antenna takes the space of less terminal inner.

The embodiment of the present invention provides a kind of antenna, the 1/2 of the 3rd resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting third antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the 3rd resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band electronic equipment；In addition, producing the 3rd resonant frequency without the single parasitic minor matters of increase.Plane where first antenna minor matters, the second antenna minor matters and third antenna minor matters can be between PCB vertical height between the gangster of 3 gangsters _ 5 so that the antenna takes the space of less terminal inner；Further, PCB only has two contact points of antenna feed end and earth terminal with antenna, further such that antenna takes less PCB surface product, and due to the reduction on PCB with antenna contacts, it is also possible that PCB cost reduction.

The structural representation for the antenna embodiment two that Fig. 2 provides for the present invention, the return loss analogous diagram for the antenna embodiment two that Fig. 3 provides for the present invention, the efficiency analogous diagram for the antenna embodiment two that Fig. 4 provides for the present invention.On the basis of above-described embodiment, further, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 can be " F " type structure, and the first end 121 of the first ends 131 of third antenna minor matters 13 respectively with the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11 is electrically connected.

Specifically, first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 form " F " type structure, here first antenna minor matters 11 can be parallel with the second antenna minor matters 12, the second antenna minor matters 12 that can also get along well are parallel, as long as ensuring that the first end 121 of the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11 is electrically connected with feeding the first end 141 of minor matters 14, there is suitable gap at the second end 112 of first antenna minor matters 11 and the second end 122 of the second antenna minor matters 12.It should be noted that described Fig. 1 and Fig. 2 difference is to be illustrated that the situation parallel with the second antenna minor matters 12 of first antenna minor matters 11 in the situation for being illustrated that the antenna minor matters 12 of first antenna minor matters 11 and second are not parallel in Fig. 1, Fig. 2.

Feed minor matters 14, ground connection minor matters 15 and the first PIFA antennas of formation of first antenna minor matters 11；Feed minor matters 14, ground connection minor matters 15 and second the 2nd PIFA antennas of formation of antenna minor matters 12；Pass through the 3rd Antenna minor matters 13 constitute loop aerial with feed minor matters 14, ground connection minor matters 15, by the way that the electric size of the loop aerial is set into the 1/2 of the 3rd resonant frequency corresponding wavelength so that the loop aerial constituted can produce the 3rd resonant frequency；Here electric size actually refers to the electrical length for the ring being made up of the earth terminal 18 that PCB16 antenna feed end 17 reaches PCB16 via feed minor matters 14, third antenna minor matters 13, ground connection minor matters 15, that is, is exactly loop aerial electric size.

Return loss of the antenna of different height on resonance point is respectively illustrated in Fig. 3, as seen from Figure 3, under different antenna heights, the return loss for the antenna being operated on three resonance points is all smaller；The efficiency of antenna of the antenna of different height on resonance point is respectively illustrated in Fig. 4, as seen from Figure 4, under different antenna heights, the efficiency for the antenna being operated on three resonance points is all than larger.

In order to preferably radiate current signal, the second antenna minor matters 12 can be located at

PCB16 first edge side 20, third antenna minor matters 13 can be located at PCB17 second edge side 21, and particular location may refer to shown in Fig. 2.The antenna is located at a corner of the upper two edge sides formation of PCB16.It should be noted that the antenna may be located on other corners of the upper two edge sides formation of PCB, the embodiment of the present invention is not limited to this.

The embodiment of the present invention provides a kind of antenna, the 1/2 of the 3rd resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting third antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the 3rd resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band electronic equipment；Separately, the 3rd resonant frequency is produced without the single parasitic minor matters of increase, and the plane where first antenna minor matters, the second antenna minor matters and third antenna minor matters can be between PCB vertical height between the gangster of 3 gangsters _ 5 so that the antenna takes the space of less terminal inner；Further, PCB only has two contact points of antenna feed end and earth terminal with antenna, further such that antenna takes less PCB surface product, and due to the reduction on PCB with antenna contacts, it is also possible that PCB cost reduction.

The structural representation for the antenna embodiment three that Fig. 5 provides for the present invention, the return loss analogous diagram for the antenna embodiment three that Fig. 6 provides for the present invention, the efficiency analogous diagram for the antenna embodiment three that Fig. 7 provides for the present invention.As shown in Figure 5, on the basis of the embodiment, further, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are " E " type structure, and the first end 131 of third antenna minor matters 13 is flushed with the first end 121 of the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11.

Specifically, first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are formd One " E " type structure, the third antenna minor matters 13, the three of 11 and second antenna minor matters of first antenna minor matters 12 can be with parallel, can also be not parallel, as long as ensuring the first end 111 of first antenna minor matters 11, the first end 121 of second antenna minor matters 12, the first end 131 of third antenna minor matters 13 is electrically connected with feeding the first end 141 of minor matters 14, second end 112 of first antenna minor matters 11, second end 122 of the second antenna minor matters 12 and the second end 132 of third antenna minor matters 13 are in a plane, first antenna minor matters 11, second antenna minor matters 12 and third antenna minor matters 13 have suitable interval.Fig. 5 as example illustrates specific annexation so that three is parallel.

The first end 131 of third antenna minor matters 13 is flushed with the first end 121 of the antenna minor matters 12 of first end 11 1 and second of first antenna minor matters 11, the concept mentioned here flushed may refer to shown in Fig. 5 structure, even PCB16 the one side towards bonnet with transverse and longitudinal coordinate come locative words, X-axis and y-axis as shown in Figure 5, the first end 131 of third antenna minor matters 13 is identical with the first end 111 of first antenna minor matters 11, the X-coordinate value of the position of the first end 121 of the second antenna minor matters 12.

Feed minor matters 14, ground connection minor matters 15 and the first PIFA antennas of formation of first antenna minor matters 11；Feed minor matters 14, ground connection minor matters 15 and second the 2nd PIFA antennas of formation of antenna minor matters 12；Third antenna minor matters 13 constitute loop aerial with feed minor matters 14, ground connection minor matters 15, and the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength, so constituted loop aerial can be enabled to produce the 3rd resonant frequency；Here electric size actually refers to the electrical length for the ring being made up of the earth terminal 18 that PCB16 antenna feed end 17 reaches PCB16 via feed minor matters 14, third antenna minor matters 13, ground connection minor matters 15, that is, is exactly loop aerial electric size.

In order to preferably radiate current signal, the antenna of the structure can be located at PCB16 any corner（For example, the first edge side 20 and second edge side 21 form the turning）.Fig. 5 is the simple signal for the edge side that the antenna is located at PCB16, but the embodiment of the present invention is without limitation.Optionally, the layout of the aerial position in Fig. 5 so that antenna has two open radiation borders（Top edge and left hand edge i.e. shown in Fig. 5）, the position of its antenna feed end 17 and earth terminal 18 is easy to do more preferable impedance matching with PCB16, so that with more preferable antenna efficiency.The top edge that antenna is located at PCB16 respectively is respectively illustrated in Fig. 6（Layout one）And left hand edge（Layout two）When return loss on resonance point, the efficiency of antenna when antenna is located at PCB16 top edge and left hand edge respectively on resonance point is shown respectively in Fig. 7.By the antenna of this structure it can be seen from Fig. 6 and Fig. 7 less return loss and larger antenna efficiency are respectively provided with three resonance points.

The embodiment of the present invention provides a kind of antenna, by by third antenna minor matters, feed minor matters and ground connection branch The electric size length for saving the loop aerial constituted is set to the 1/2 of the 3rd resonant frequency corresponding wavelength, so that the loop aerial produces the 3rd resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band electronic equipment；Separately, the 3rd resonant frequency is produced without the single parasitic minor matters of increase, and the plane where first antenna minor matters, the second antenna minor matters and third antenna minor matters can be between PCB vertical height be maintained between the gangster of 3 ware -5 so that the antenna takes the space of less terminal inner；Further, PCB only has two contact points of antenna feed end and earth terminal with antenna, further such that antenna takes less PCB surface product, and due to the reduction on PCB with antenna contacts, it is also possible that PCB cost reduction.The structural representation for the antenna embodiment four that Fig. 8 provides for the present invention, the antenna includes：First antenna minor matters 31, the second antenna minor matters 32, feed minor matters 33 and ground connection minor matters 34;Wherein, first end 31 1, the first end 321 of the second antenna minor matters 32 of the first end 331 of the feed minor matters 33 respectively with first antenna minor matters 31 are electrically connected, second end 332 of feed minor matters 33 is electrically connected with the antenna feed end 36 on PCB35, the first end 341 of ground connection minor matters 34 is electrically connected with the second end 322 of the second antenna minor matters 32, and the second end 342 of ground connection minor matters 34 is electrically connected with the earth terminal 37 on PCB35；The first antenna minor matters 31 constitute the first PIFA antennas with feed minor matters 33, ground connection minor matters 34, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters 32 constitute loop aerial with feed minor matters 33, ground connection minor matters 34, and the loop aerial is used to produce the second resonant frequency；Wherein, the electric size length of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength.

Wherein, the first resonant frequency can be 2. 4GHz-2. 5GHz, and the second resonant frequency can be

4. 9GHz-5. 9GHz o

Specifically, as shown in figure 8, first antenna minor matters 31, feed minor matters 33 and ground connection minor matters 34 constitute the first PIFA antennas；Wherein, the first end 331 of feed minor matters 33 is electrically connected with the first end 311 of first antenna minor matters 31, and the second end 332 of feed minor matters 33 is electrically connected with the antenna feed end 36 on PCB35.By setting the electric size length of the first PIFA antennas to cause the first PIFA antennas to produce the first resonant frequency, first resonant frequency can be 2. 4GHz.The electric size length of first PIFA antennas can be the 1/4 of the corresponding wavelength of the first resonant frequency, and the electric size length of the first PIFA antennas can be electrical length from PCB35 antenna feed end 36 via feed minor matters 33 to the second end 312 of first antenna minor matters 31.Here the 1/4 of the corresponding wavelength of the first resonant frequency is the electrical length calculated according to the 4GHz of resonant frequency 2.. Second antenna minor matters 32 constitute loop aerial with feed minor matters 33, ground connection minor matters 34；Wherein, the first end 331 of the feed minor matters 33 is electrically connected with the first end 321 of the second antenna minor matters 32, and the second end 332 of feed minor matters 33 is electrically connected with the antenna feed end 36 on PCB35.By the way that the electric size of the loop aerial is set into the 1/2 of the second resonant frequency corresponding wavelength so that the loop aerial constituted produces the second resonant frequency, and second resonant frequency can be 5. 2GHz.Here the electric size of loop aerial actually refers to be reached the electrical length for the ring that earth terminal 37 is constituted via feed minor matters 33, the second antenna minor matters 32, ground connection minor matters 34 by PCB35 antenna feed end 36, that is, is exactly loop aerial electric size.

It should be noted that the position of the antenna minor matters 32 of first antenna minor matters 31 and second is one simply illustrative in Fig. 8, first antenna minor matters 31 can be parallel with the second antenna minor matters 32, can also be not parallel with the second antenna minor matters 32（Fig. 8 shows a case that the two is not parallel）As long as ensuring that the first end 321 of the antenna minor matters 32 of first end 31 1 and second of first antenna minor matters 31 is electrically connected with feeding the first end 331 of minor matters 33, there is suitable gap between the second end 312 of first antenna minor matters 31 and the second end 322 of the second antenna minor matters 32.

Current signal after terminal inner is needed processing is gone out by aerial radiation, then current signal flows through the earth terminal 37 that feed minor matters 33, corresponding antenna minor matters and ground connection minor matters 34 reach PCB35 by the antenna feed end 36 on PCB35, form resonant tank to produce radiation field, current signal is radiate in the form of an electromagnetic wave.Assuming that it is the signal in 5. 8GHz frequency ranges that the current signal of terminal inner processing, which is centre frequency, then the current signal enters one closed loop of formation of earth terminal 37 that feed minor matters 33, the second antenna minor matters 32 and ground connection minor matters 34 reach PCB35 by antenna feed end 36, so as to produce radiation field, the current signal is radiate in the form of an electromagnetic wave；It should be noted that, the current signal also can in the form of an electromagnetic wave be radiate by the first PIFA antennas, only because loop aerial can be operated in the second resonant frequency, therefore the electromagnetic wave signal intensity being radiate via loop aerial will be greatly compared with the electromagnetic intensity of the first PIFA aerial radiations, it is easy to which the electronic equipment of opposite end is received.It should be noted that, merely just simply describe the process for current signal being sent by antenna, the electromagnetic wave signal in corresponding band is received using the antenna in the embodiment of the present invention, and it is similar with the principle of above-mentioned transmission process that the electromagnetic wave signal is converted to the principle of the process of current signal, will not be repeated here.

The embodiment of the present invention provides a kind of antenna, the 1/2 of the second resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting the second antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the second resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band And then go in wide band electronic equipment.

Further, further, on the basis of above-mentioned embodiment illustrated in fig. 8, the vertical height between plane and PCB35 where the 31 and second antenna minor matters of first antenna minor matters 32 can be between 3mm-5mm, so that antenna only needs less space inside occupied terminal just to widen the working band of oneself.Can specifically there are two kinds of embodiments, be respectively：

The first embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB35 and antenna holder 38 are located in the cavity, wherein, the antenna holder 38 is arranged on the PCB35 one side towards the bonnet, and the antenna minor matters 32 of first antenna minor matters 31 and second are arranged on the one side towards the bonnet of the antenna holder 38.

Specifically, being referred to Fig. 8, the position of each minor matters in antenna holder 38 and the antenna is shown in Fig. 8（The protecgulum and bonnet of terminal not shown in Fig. 8）The antenna holder 38 is arranged on the one side of the bonnet of PCB35 terminaloriented, the antenna minor matters 32 of first antenna minor matters 31 and second of the antenna are arranged in a plane of antenna holder 38, and the plane is the one side of the terminaloriented bonnet of antenna holder 38.GP, can cause the plane where the 31 and second antenna minor matters of first antenna minor matters 32 and the vertical height between PCB35 to be maintained between the gangster of 3 wares _ 5, so that the antenna takes the space of less terminal inner by antenna holder 38.

Second of embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB35 is located in the cavity, and the antenna minor matters 32 of first antenna minor matters 31 and second are arranged on the one side towards PCB35 of the bonnet.

Specifically, the antenna minor matters 32 of first antenna minor matters 31 and second of the antenna are in a plane, and the plane is the one side towards PCB35 of terminal bonnet, i.e. the antenna minor matters 32 of first antenna minor matters 31 and second are located at a plane of terminal bonnet, and the plane is the one side towards PCB35 of terminal bonnet, the vertical height between the plane and PCB35 at the place of 31 and second antenna minor matters of first antenna minor matters 32 can so be caused between the gangster of 3 ware -5, so that the antenna takes the space of less terminal inner.

The embodiment of the present invention provides a kind of antenna, the 1/2 of the second resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting the second antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the second resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band electronic equipment.In addition, the plane where first antenna minor matters and the second antenna minor matters can be between PCB vertical height between 3mm_5mm so that the antenna take it is less The space of terminal inner.

The structural representation for the antenna embodiment five that Fig. 9 provides for the present invention, the return loss analogous diagram for the antenna embodiment five that Figure 10 provides for the present invention.On the basis of embodiment illustrated in fig. 8, further, the antenna minor matters 32 of first antenna minor matters 31 and second are " " type structure；The first end 321 of the antenna minor matters 32 of first end 311 and second of the first antenna minor matters 31 is flushed.

It should be noted that Fig. 8 and Fig. 9 difference is, the not parallel situation of the antenna minor matters 32 of first antenna minor matters 31 and second is illustrated that in Fig. 8, Fig. 9 is illustrated that the situation parallel with the second antenna minor matters 32 of first antenna minor matters 31.

Specifically, the second antenna minor matters 32 and the first antenna minor matters 31 form " " type structure, and the first end 321 of the second antenna minor matters 32 is flushed with the first end 311 of first antenna minor matters 31, the concept mentioned here flushed may refer to shown in Fig. 9 structure, X-axis and y-axis as shown in Figure 9, locative words are even come with transverse and longitudinal coordinate, then the X-coordinate value of the position of the first end 311 of the first end 321 of the second antenna minor matters 32 and first antenna minor matters 31 is identical.

Feed minor matters 33, ground connection minor matters 34 and the first PIFA antennas of formation of first antenna minor matters 31；Feed minor matters 33, the ground connection minor matters 34 and second formation loop aerial of antenna minor matters 32；Here the bandwidth of operation that the loop aerial formed can be covered is the second resonant frequency（Such as 5. 2GHz) bandwidth of operation.The electric size of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength of correspondence.Wherein, the electric size of loop aerial here actually refers to the electrical length for the ring being made up of the earth terminal 37 that PCB35 antenna feed end 36 reaches PCB35 via feed minor matters 33, the second antenna minor matters 32, ground connection minor matters 34.

In order to preferably radiate current signal, the antenna of the structure can be located at PCB35 any edge side（For example：First edge side 39 or second edge side 40 in Fig. 9).The return loss of the antenna is shown in Figure 10（S11 ) .As seen from Figure 10, the antenna of this structure is respectively provided with less return loss on its resonance point.

The embodiment of the present invention provides a kind of antenna, the 1/2 of the second resonant frequency corresponding wavelength is set to by the electric size length for the loop aerial for constituting the second antenna minor matters, feed minor matters and ground connection minor matters, so that the loop aerial produces the second resonant frequency, so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then go in wide band electronic equipment.

The structural representation for the terminal embodiment one that Figure 11 provides for the present invention, refers to Figure 11 and Fig. 1, and the terminal includes RF processing unit 41, baseband processing unit 42 and antenna 43.

The antenna 43, including first antenna minor matters 11, the second antenna minor matters 12, third antenna minor matters 13rd, feed minor matters 14 and ground connection minor matters 15;Wherein, first end 1 11, the first end 121 of the second antenna minor matters 12, the first end 131 of third antenna minor matters 13 of the first end 141 of the feed minor matters 14 respectively with first antenna minor matters 11 are electrically connected, second end 142 of the feed minor matters 14 is electrically connected with the antenna feed end 17 on PCB16, the first end 151 of ground connection minor matters 15 is electrically connected with the second end 132 of third antenna minor matters 13, and the second end 152 of ground connection minor matters 15 is electrically connected with the earth terminal 18 on PCB16；The first antenna minor matters 11 constitute the first PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters 12 constitute the 2nd PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters 13, feed minor matters 14 and ground connection minor matters 15 constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength.

The antenna 43, for the transmission of wireless signals received to be converted into electromagnetic wave to RF processing unit 41, or by the transmission signal of RF processing unit 41, sends；RF processing unit 41, wireless signal for being received to antenna 43 carries out frequency-selecting, amplification, down-converted, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to baseband processing unit 42, or, baseband signal or intermediate-freuqncy signal for baseband processing unit 42 to be sent are sent by up-conversion, amplification by antenna 43；Baseband processing unit 42, is handled the intermediate-freuqncy signal or baseband signal received.

Further, the vertical height between the plane and PCB16 where the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 is between 3mm-5mm.

Optionally, the antenna 43 is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna 43 also includes antenna holder 19, the PCB16 and antenna holder 19 are located in the cavity, wherein, the antenna holder 19 is arranged on the one side towards the bonnet of the PCB16, and first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on the one side towards the bonnet of antenna holder 19.

Optionally, the antenna 43 is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB16 is located in the cavity, and first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on the one side towards PCB16 of the bonnet.

Optionally, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are " F " type structure, the first end 131 of the third antenna minor matters 13 is vertical with the first end 121 of the antenna minor matters 12 of first end 111 and 1 second of first antenna minor matters 11 respectively to be electrically connected.Also, optional, the second antenna minor matters 12 are located at PCB16 first edge side 20, and third antenna minor matters 13 are located at PCB16 second edge side 21.

Optionally, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are type structure, and the first end 131 of the third antenna minor matters 13 is flushed with the first end 121 of the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11.Also, optional, the antenna is located at PCB16 any edge side.

It should be noted that antenna 43 herein is referred to the description of the antenna structure embodiment in described Fig. 1-Fig. 7, it will not be repeated here.The terminal can be the communication terminals such as data card, wireless Internet card, wireless router, mobile phone, Wearable, glasses, media apparatus.

The structural representation for the terminal embodiment two that Figure 12 provides for the present invention, as shown in figs. 8 and 12, the terminal include RF processing unit 44, baseband processing unit 45 and antenna 46.

The antenna 46 includes：First antenna minor matters 31, the second antenna minor matters 32, feed minor matters 33 and ground connection minor matters 34;Wherein, first end 311, the first end 321 of the second antenna minor matters 32 of the first end 331 of the feed minor matters 33 respectively with first antenna minor matters 31 are electrically connected, second end 332 of feed minor matters 33 is electrically connected with the antenna feed end 36 on PCB35, the first end 341 of ground connection minor matters 34 is electrically connected with the second end 322 of the second antenna minor matters 32, and the second end 342 of ground connection minor matters 34 is electrically connected with the earth terminal 37 on PCB35；The first antenna minor matters 31 constitute the first PIFA antennas with feed minor matters 33, ground connection minor matters 34, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters 32 constitute loop aerial with feed minor matters 33, ground connection minor matters 34, and the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength.

The antenna 46, for the transmission of wireless signals received to be converted into electromagnetic wave to RF processing unit 44, or by the transmission signal of RF processing unit 44, sends；RF processing unit 44, wireless signal for being received to antenna 46 carries out frequency-selecting, amplification, down-converted, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to baseband processing unit 45, or, baseband signal or intermediate-freuqncy signal for baseband processing unit 45 to be sent are sent by up-conversion, amplification by antenna 46；Baseband processing unit 45, is handled the intermediate-freuqncy signal or baseband signal received.

Wherein, the first resonant frequency can be 2. 4GHz-2. 5GHz, and the second resonant frequency can be 4. 9GHz-5. 9GHz. Further, the vertical height between the plane and PCB35 where the 31 and second antenna minor matters of first antenna minor matters 32 is between 3mm_5mm.

Optionally, the antenna 46 is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna 46 also includes antenna holder 38, PCB35 and antenna holder 38 are located in the cavity, the antenna holder 38 is arranged on the PCB35 one side towards the bonnet, and the antenna minor matters 32 of first antenna minor matters 31 and second are arranged on the one side towards the bonnet of antenna holder 38.

Optionally, the antenna 46 is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB35 is located in the cavity, and the antenna minor matters 32 of first antenna minor matters 31 and second are arranged on the one side towards PCB35 of the bonnet.

Optionally, the antenna minor matters 32 of first antenna minor matters 31 and second are " " type structure, and the first end 322 of the antenna minor matters 32 of first end 31 1 and second of the first antenna minor matters 31 is flushed.

It should be noted that antenna 46 herein is referred to the description to antenna structure embodiment in above-mentioned Fig. 8-Figure 10, it will not be repeated here.The terminal can be the communication terminals such as data card, wireless Internet card, wireless router, mobile phone, Wearable, glasses, media apparatus.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, a kind of antenna, it is characterised in that including：First antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first end, the first end of the second antenna minor matters, the first end of the third antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；

The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute the 2nd PIFA antennas with the feed minor matters, the ground connection minor matters, and the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength.

2nd, antenna according to claim 1, it is characterised in that the vertical height between plane and the PCB where the first antenna minor matters, the second antenna minor matters and the third antenna minor matters exists

Between 3mm_5mm.

3rd, antenna according to claim 1 or 2, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, wherein, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

4th, antenna according to claim 1 or 2, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the PCB of the bonnet.

5th, the antenna according to claim any one of 1-4, it is characterized in that, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are " F " type structure, and the first end of the third antenna minor matters is electrically connected with the first end of the first antenna minor matters and the first end of the second antenna minor matters respectively.

6th, antenna according to claim 5, it is characterised in that the second antenna minor matters are located at institute PCB first edge side is stated, the third antenna minor matters are located at the second edge side of the PCB.

7th, the antenna according to claim any one of 1-4, it is characterized in that, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are type structure, and the first end of the third antenna minor matters is flushed with the first end of the first antenna minor matters and the first end of the second antenna minor matters.

8th, antenna according to claim 7, it is characterised in that the antenna is located at any edge side of the PCB.

9th, a kind of antenna, it is characterised in that including：First antenna minor matters, the second antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first end, the first end of the second antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters is electrically connected with the second end of the second antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB;The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute loop aerial with the feed minor matters, the ground connection minor matters, and the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength.

10th, antenna according to claim 9, it is characterised in that the vertical height between plane and the PCB where the first antenna minor matters and the second antenna minor matters is in 3mm-5_mmBetween.

11st, antenna according to claim 8 or claim 9, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

12nd, antenna according to claim 8 or claim 9, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the PCB of the bonnet.

13rd, the antenna according to claim 11 or 12, it is characterised in that the first antenna minor matters and the second antenna minor matters are " " type structure, the first end of the first end of the first antenna minor matters and the second antenna minor matters is flushed.

14th, a kind of terminal, it is characterised in that including：RF processing unit, baseband processing unit and day Wherein, the antenna includes first antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first end, the first end of the second antenna minor matters, the first end of the third antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on the PCB, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute the 2nd PIFA antennas with the feed minor matters, the ground connection minor matters, and the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength;

The antenna, for giving the RF processing unit by the transmission of wireless signals received, or is converted to electromagnetic wave by the transmission signal of RF processing unit, sends；The RF processing unit, wireless signal for being received to the antenna carries out frequency-selecting, amplification, down-converted, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to the baseband processing unit, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent are sent by up-conversion, amplification by the antenna；The baseband processing unit, is handled the intermediate-freuqncy signal or the baseband signal received.

15th, terminal according to claim 14, it is characterised in that the vertical height between plane and the PCB where the first antenna minor matters, the second antenna minor matters and the third antenna minor matters is between 3mm_5mm.

16th, the terminal according to claims 14 or 15, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of the terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, wherein, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

17th, the terminal according to claims 14 or 15, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the one side towards the PCB of the bonnet. 18th, the terminal according to claim any one of 14-17, it is characterized in that, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are " F " type structure, and the first end of the third antenna minor matters is electrically connected with the first end of the first antenna minor matters and the first end of the second antenna minor matters respectively.

19th, terminal according to claim 18, it is characterised in that the second antenna minor matters are located at the first edge side of the PCB, the third antenna minor matters are located at the second edge side of the PCB.

20th, the terminal according to claim any one of 14-17, it is characterized in that, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are type structure, and the first end of the third antenna minor matters is flushed with the first end of the first antenna minor matters and the first end of the second antenna minor matters.

21st, terminal according to claim 20, it is characterised in that the antenna is located at any edge side of the PCB.

22nd, a kind of terminal, it is characterised in that including：RF processing unit, baseband processing unit and day, wherein, the antenna includes：First antenna minor matters, the second antenna minor matters, feed minor matters and ground connection minor matters, first end, the first end of the second antenna minor matters of the first end of the feed minor matters respectively with the first antenna minor matters are electrically connected, second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters is electrically connected with the second end of the second antenna minor matters, and the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；The first antenna minor matters constitute the first PIFA antennas with the feed minor matters, the ground connection minor matters, and the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters constitute loop aerial with the feed minor matters, the ground connection minor matters, and the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength;

The antenna, for giving the RF processing unit by the transmission of wireless signals received, or is converted to electromagnetic wave by the transmission signal of RF processing unit, sends；The RF processing unit, wireless signal for being received to the antenna carries out frequency-selecting, amplification, down-converted, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to the baseband processing unit, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent are sent by up-conversion, amplification by the antenna；The baseband processing unit, is handled the intermediate-freuqncy signal or the baseband signal received.

23rd, terminal according to claim 22, it is characterised in that the first antenna minor matters and institute The vertical height between the plane and the PCB where the second antenna minor matters is stated in 3mm-5_mmBetween.

24th, the terminal according to claim 22 or 23, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, the PCB and the antenna holder are located in the cavity, the antenna holder is arranged on the one side towards the bonnet of the PCB, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.

25th, the terminal according to claim 22 or 23, it is characterized in that, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, and the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the PCB of the bonnet.

26th, the terminal according to claim 24 or 25, it is characterised in that the first antenna minor matters and the second antenna minor matters are " " type structure, the first end of the first end of the first antenna minor matters and the second antenna minor matters is flushed.