CN101043098A

CN101043098A - Communication electronic device for improving the influence of loss medium to antenna

Info

Publication number: CN101043098A
Application number: CN 200610068007
Authority: CN
Inventors: 蔡调兴; 邱建评; 廖志威
Original assignee: Quanta Computer Inc
Current assignee: Quanta Computer Inc
Priority date: 2006-03-23
Filing date: 2006-03-23
Publication date: 2007-09-26

Abstract

A communication electronic device which improves the affect of dissipative medium to antenna includes a shell, a circuit board which is set in the shell, an antenna and a reflection layer which are above the circuit board, and a dissipative medium is set on the shell, at least one part of the dissipative medium and antenna in shell are superposed, the reflection layer is made of conductive material, and set between the dissipative medium and the antenna and corresponding with the part of the dissipative medium and antenna, it does not contacted with the antenna. By the antenna signal is reflected between the reflection layer and the antenna, it avoids the area of dissipative medium, and does not prong the dissipative medium to loss energy of signal.

Description

Improve the communication electronic device of loss medium to the antenna influence

Technical field

The invention relates to a kind of electronic installation, particularly a kind of communication electronic device that is provided with antenna.

Background technology

When the antenna signal penetrates the not good material of conductivity, all can some energy loss, the not good material (as human body, building etc.) of this conductivity can be described as loss medium usually.

Fig. 1, Fig. 2 is the interior section member of a mobile phone 1, comprise a shell 11, one circuit board 12 and an antenna 13, circuit board 12 is to be located in the shell 11, and antenna 13 is located at circuit board 12 tops, and consider that antenna 13 is provided with the optimization of position, problems such as the overall appearance of mobile phone and the utilization of mobile phone inner space, the configuration meeting of part mobile phone is with brand mark, the not good loss medium 15 of the self-photography mirror of camera or other conductivity is arranged at antenna 13 tops and overlaps with antenna 13, loss medium 15 as indication among the figure is the self-photography mirror of mobile phone 1, the below and the self-photography mirror that then are provided in a side of antenna 13 with the phtographic lens 14 of self-photography mirror connection are corresponding, but can make thus and be positioned at antenna 13 parts under this loss medium 15, during the loss medium 15 of its radiation signal above passing through, cause the loss of a part of energy.And if desire to make antenna not with this loss medium overlaid, the position that changes loss medium can have influence on the appearance design of mobile phone integral body again, changes the position is set then can has influence on antenna performance of antenna.

Consult Fig. 2, Fig. 6, wherein, Fig. 6 is the experimental result of antenna for mobile phone in the running of GSM 900MHz frequency band, the circular data point that indicates " zero " is the not radiation gain by loss medium of antenna for mobile phone, the data point that rectangle indicates " " then is the radiation gain of antenna for mobile phone by loss medium, by among Fig. 6 as can be known, this loss medium 15 can make the gain of antenna 13 reduce about 1～2dB.

Summary of the invention

Therefore, purpose of the present invention is promptly providing a kind of communication electronic device that improves loss medium to the antenna influence.

Another object of the present invention, being to provide a kind of both can not influence appearance design, can improve the communication electronic device of loss medium to the antenna influence again.

So, the present invention improves loss medium the communication electronic device of antenna influence is comprised a shell, is located at a circuit board in the shell, is located at an antenna and a reflector on this circuit board, and shell is provided with a loss medium, at least one part overlaid of antenna in this loss medium and the shell is corresponding, this reflector is that conductive material is made, be arranged between this loss medium and this antenna and simultaneously corresponding to this loss medium and the corresponding part of this antenna, and do not contact with this antenna.

The communication electronic device that the present invention improves loss medium to be influenced antenna sees through this reflector and is arranged between loss medium and the antenna, and can be with the signal of antenna by reflecting between reflector and antenna, avoid the zone of loss medium, and directly do not penetrate loss medium, to avoid causing the signal energy loss.

Description of drawings

Fig. 1 is a schematic top plan view, and the interior section member of a mobile phone is described, comprises a shell, a circuit board, an antenna and a loss medium;

Fig. 2 is a schematic side view, illustrates that this loss medium is located at this antenna top and corresponding to the part of this antenna;

Fig. 3 is a schematic top plan view, illustrates that the present invention improves loss medium the preferred embodiment of the communication electric installation of antenna influence is comprised a circuit board, an antenna, a loss medium and a reflector;

Fig. 4 is a schematic side view, illustrates that the external form profile in this reflector is identical with this loss medium, and corresponding to the below of this loss medium;

Fig. 5 is the partial enlarged drawing that indicates the A place among Fig. 4, illustrates that aerial signal reflects between this antenna and this reflector, and goes out this shell by the regional reflex that is not provided with this loss medium; And

Fig. 6 is an experimental data distribution map, antenna is described when the frequency band running of GSM 900MHz, the radiation gain comparison that signal does not pass any loss medium, passes loss medium and set up three kinds of states in reflector between loss medium and antenna.

The primary clustering symbol description

1,2 mobile phones

11,21 shells

12,22 circuit boards

13,23 antennas

231 load points

232 earth points

233 straightways

234 U type sections

14,24 phtographic lenses

15,25 loss mediums

26 reflector

Embodiment

About aforementioned and other technology contents, characteristics and effect of the present invention, in following cooperation DETAILED DESCRIPTION OF THE PREFERRED with reference to the accompanying drawings, can clearly present.

Consult Fig. 3 and Fig. 4, it is to be illustrative examples with a camera cell phone 2 with Self-timer to the preferred embodiment of the communication electronic device of antenna influence that the present invention improves loss medium, and this mobile phone 2 comprises the reflector 26 that a shell 21, an electronic circuit cell 20, an antenna 23, a loss medium 25 and a conductive material are made.

Electronic circuit cell 20 is to be arranged in the shell 21, and comprise a circuit board 22 and an image processor 24, antenna 23 is located on the circuit board 22, it comprises a straightway 233 and a U type section 234, straightway 233 contiguous two ends respectively are provided with a load point 231 and an earth point 232, the U type opening of this U type section 234 is outside circuit board 22 and terminal a connection of an end and straightway 233, and image processor 24 is to be located at the interior digital camera of antenna U type section 234 openings.

It should be noted that, the loss medium 25 of present embodiment indication is embedded on the shell 21, and be positioned at directly over the antenna 23 of shell 21 and with image processor corresponding self-photography mirror about in the of 24, but in fact, part does not possess the mobile phone of camera function, consider the bulk shape design of mobile phone, material layer edge that also can brand mark or other conductivity is not good invest on the shell 21 and with shell 21 in part antenna 23 overlaids, if this kind mobile phone, then the loss medium 25 of indication is this brand mark, or other is attached on the phone housing, conductivity is not good and correspond to the material layer of antenna 23 equally.

Consult Fig. 4, Fig. 5, in the present embodiment, reflector 26 is one to be attached at loss medium (self-photography mirror) 25 lower surface and sheet metal (to call sheet metal 26 in the following text) between loss medium 25 and shell 21, it for example is Copper Foil, this sheet metal 26 does not contact with antenna 23 and has remained the space between the two, its position is up and down simultaneously corresponding to loss medium 25 and antenna 23, whereby, when with the equitant antenna 23 area radiation signals of loss medium 25, produce the reflex that is similar to minute surface owing to see through this sheet metal 26, make the aerial signal can be by the past interflection between sheet metal 26 and the antenna, and go out shell 21 (shown in the arrow of Fig. 5) by the regional reflex that shell 21 is not provided with loss medium 25, and directly do not pass loss medium 25, avoid this loss medium 25 to cause the loss of antenna energy.

And when actual fabrication, the external form profile of this sheet metal 26 also can be according to the design of the external form profile of loss medium 25 correspondence fully, for example, if the type profile is an ellipse outside this loss medium 25, then this sheet metal 26 also can be made into the identical ellipse of a size, and this sheet metal 26 also can be attached at shell 21 bottom surfaces, also same at interval corresponding between loss medium 25 and the antenna 23.

Consult Fig. 4, Fig. 6, wherein, Fig. 6 is an antenna for mobile phone in the experimental result of GSM 900MHz frequency band running, and the circular data point that indicates " zero " is a mobile phone when not being provided with any loss medium, the radiation gain of antenna; The data point that rectangle indicates " " is the radiation gain of antenna for mobile phone 23 by loss medium 25; And the data point of triangle sign " △ " is the radiation gain of setting up reflector 26 between loss medium 25 and the antenna 23.Because when identical signal is inputed to different antennae, its energy that enters antenna is about the same, but as can be known by the data point among Fig. 6, seeing through increases this reflector 26, can make antenna gain increase about 1dB than yield value by this loss medium 25, and at the yield value of part frequency range, even can be with the yield value by loss medium is not identical.Therefore, the present invention can (GSM, DCS PCS) all can obtain bigger radiation gain in different frequency bands in use.

In sum, the present invention improves the communication electronic device of loss medium to the antenna influence, utilization is set up in the reflector 26 of this loss medium 25 belows, the signal of the antenna 23 parts institute radiation that feasible below is overlaid, see through this reflector 26 and produce the reflex that is similar to minute surface, make signal that antenna 23 parts corresponding to loss medium 25 belows are given off by reflex, avoid loss medium 25 and directly up do not pass loss medium 25 to avoid causing energy loss, both can keep the original design optimization of antenna for mobile phone 23, and also can avoid the energy loss that signal caused by loss medium 25 and reduce gain.

The above person only is the preferred embodiments of the present invention, and when not limiting scope of the invention process with this, promptly the simple equivalent of doing according to content of the present invention generally changes and modifies, and all still belongs in the scope that the present invention contains.

Claims

1. one kind is improved loss medium to the communication electronic device that antenna influences, and comprising:

One shell;

One electronic circuit cell is placed in this shell, and comprises a circuit board;

One antenna is arranged at this circuit board top;

One loss medium is arranged on this shell, and a part of corresponding with this antenna at least; And

One reflector is made by conductive material, is arranged between this antenna and this loss medium, and does not contact with this antenna, directly passes this loss medium in order to stop this aerial radiation signal, increases the radiation efficiency of this antenna.

2. the communication electronic device that improves loss medium to the antenna influence according to claim 1 is characterized in that, this reflector is attached to this loss medium in the face of on the surface of this antenna.

3. the communication electronic device that improves loss medium to antenna influence according to claim 1 is characterized in that, this reflector be arranged at this shell and between this loss medium and its between the overlapping antenna part that corresponds to.

4. according to claim 1, the 2 or 3 described communication electronic devices that improve loss medium to the antenna influence, it is characterized in that this reflector is a sheet metal.

5. the communication electronic device that improves loss medium to the antenna influence according to claim 4 is characterized in that, comprise that also one is installed in the image processor of contiguous this antenna in this shell, and this loss medium is a self-photography mirror.

6. the communication electronic device that improves loss medium to the antenna influence according to claim 1, it is characterized in that, the contour shape of this loss medium of contour shape and this in this reflector is identical, when being arranged between this loss medium and this antenna, this reflector is overlapped in this loss medium fully.