CN101924803A - Handheld electronic device - Google Patents
Handheld electronic device Download PDFInfo
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- CN101924803A CN101924803A CN2009101494262A CN200910149426A CN101924803A CN 101924803 A CN101924803 A CN 101924803A CN 2009101494262 A CN2009101494262 A CN 2009101494262A CN 200910149426 A CN200910149426 A CN 200910149426A CN 101924803 A CN101924803 A CN 101924803A
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- electric device
- portable electric
- balanced type
- type antenna
- radiant body
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Abstract
The invention discloses a handheld electronic device, which comprises a shell, a telephone receiver, a balanced type antenna and a body. The shell comprises a top end and a bottom end. The telephone receiver is arranged in the shell and is adjacent to the top end, and the balanced type antenna is arranged in the shell and is adjacent to the bottom end. The body is arranged in the shell and is electrically connected to the telephone receiver and the balanced type antenna.
Description
Technical field
The invention relates to a kind of portable electric device, and particularly about a kind of portable electric device that reduces electromagnetic interference.
Background technology
When the user operates mobile phone, near the signal that is given off the receiver of mobile phone (receiver) can and hearing aids (Hearing Aid) between produce and interfere with each other, so (Federal Communications Commission of FCC, FCC) compatibility of requirement test mobile phone and hearing aids, and propose relevant for hearing aid compatibility (Hearing Aid Compatibility, HAC) standard is to define the also usefulness property and the fail safe of hearing aids and multiple communication equipment.
Table 1
Please refer to above-mentioned table 1, under the standard of hearing aid compatibility, the manufacturer of mobile phone must be limited in the electromagnetic interference (EMI) of mobile phone below one rated value (threshold), and wherein so-called electromagnetic interference comprises that electric field and magnetic field are to the interference of hearing aids and the influence of tolerance.In other words, general HAC not single just electric field to be solved also will solve the interference of magnetic field to hearing aids simultaneously to the influence of hearing aids.And FCC requires mobile phone must reach the M3 grade of table 1.That is to say that the electric field value of mobile phone must be less than 84.1V/m, and the magnetic field value of mobile phone must be less than 0.25A/m.So how making mobile phone meet the hearing aid compatibility standard promptly becomes the present important topic of being badly in need of solution.
Summary of the invention
The present invention is about a kind of portable electric device, and it comprises following advantage at least:
One, the induced current on the reduction substrate.
Two, meet hearing aid compatibility (Hearing Aid Compatibility, HAC) standard.
According to an aspect of the present invention, a kind of portable electric device is proposed.Portable electric device comprises housing, receiver, balanced type antenna and body.Housing comprises top and bottom.Receiver is arranged in the housing and is configured near the top end, and balanced type antenna is arranged in the housing and be configured near the bottom place.Body is arranged in the housing and is coupled to receiver and balanced type antenna.
For foregoing of the present invention can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
Figure 1 shows that and be calcspar according to a kind of portable electric device of the embodiment of the invention.
Figure 2 shows that and be the front schematic view of receiver in the position of portable electric device.
Fig. 3 and the back position perspective view that is respectively balanced type antenna in the different angles of portable electric device shown in Figure 4.
Fig. 4 A and Fig. 4 B illustrate the structural representation of unbalanced antenna and balanced type antenna respectively.
Figure 5 shows that the relative position schematic diagram in portable electric device for receiver and balanced type antenna.
Figure 6 shows that subelement perspective view for portable electric device.
Fig. 7 A and Fig. 7 B are respectively the stereogram of balanced type antenna different angles.
The main element symbol description
10: portable electric device
110: housing
112: the top
114: the bottom
120: receiver
130: balanced type antenna
131: feeding portion
133: grounding parts
132: the radiant body front
134: the radiant body back side
136: the radiant body side
140: body
142: system ground
144: conducting strip
146: inhale wave plate
150: substrate
230: the unbalanced antenna
Embodiment
In order to meet the hearing aid compatibility standard, following embodiment provides a kind of portable electric device, and the function that it has wireless mobile communications explains with mobile phone in the present embodiment, but not as limit.Portable electric device comprises housing, receiver, balanced type antenna and body.Housing comprises top and bottom.Receiver is arranged in the housing and is configured near the top end, and balanced type antenna is arranged in the housing and be configured near the bottom place.The body of portable electric device is arranged in the housing and is electrically connected to receiver and balanced type antenna.Aftermentioned further will be described in detail as follows with embodiment:
Embodiment
Please be simultaneously referring to figs. 1 through Fig. 4, Figure 1 shows that and be calcspar according to a kind of portable electric device of the embodiment of the invention, Figure 2 shows that and be the position view of receiver in portable electric device, Fig. 3 and the position perspective view that is respectively the different angles of balanced type antenna in portable electric device shown in Figure 4 Figure 5 shows that the relative position schematic diagram in mobile communications device into receiver and balanced type antenna.Portable electric device 10 for example be mobile phone (Mobile Phone), intelligent mobile phone (Smart Phone), personal digital assistant (Personal Digital Assistant, PDA), satellite navigator.Portable electric device 10 comprises housing 110, receiver 120, balanced type antenna (BalancedAntenna) 130 and body 140, and balanced type antenna 130 is between housing 110 and body 140.Receiver 120, balanced type antenna 130 and body 140 are arranged in the housing 110, and body 140 is coupled to receiver 120 and balanced type antenna 130.Body 140 is via balanced type antenna 130 transmitting/receiving wireless signals, and the wireless signal that balanced type antenna 130 is received is play output via receiver 120 again after match circuit, RF circuit and a succession of interlock circuit are handled.Balanced type antenna 130 for example is the loop antenna (Loop Antenna) of three-dimensional structure, and the body 140 of portable electric device is a substrate for example, and disposes many relevant electronic circuit components on the substrate.
Please refer to Fig. 4 A, Fig. 4 A is depicted as the structural representation of unbalanced antenna and substrate.Unbalanced antenna 230 electrically connects with substrate 150.Electric current I a=I1+I2 in the unbalanced antenna 230.Because I1 does not flow back to the system ground in the substrate 150, so current Ib is not equal to electric current I a.Based on law of conservation of energy, induced current Ir certainly will will be produced accordingly on the substrate 150, so that electric current I a=Ib+Ir.Because therefore the generation of substrate 150 induced currents Ir causes receiver 130 adjacent domains to produce the electric charge uneven distribution, and produces the change of electric field.Thus, will have influence on hearing aid compatibility (Hearing Aid Compatibility, test HAC).
Please refer to Fig. 4 B and Fig. 5, Fig. 4 B is depicted as the structural representation into balanced type antenna and substrate.Balanced type antenna 130 electrically connects with substrate 150.Because the electric current I a=Ib in the balanced type antenna 130, so will can not produce any induced current Ir on the substrate 150.Thus, near the CHARGE DISTRIBUTION of the electric field the receiver 130 just can not change yet, so can more meet the compatibility specification of HAC.
Please refer to Fig. 6, Figure 6 shows that subelement perspective view into portable electric device.Aforementioned body 140 also comprises system ground 142, conducting strip 144 and inhales wave plate 146.System ground 142 is connected to the grounding parts 133 of balanced type antenna 130, and conducting strip 144 is connected near the side and 112 places, adjacent top of system ground 142, to increase the current density of system ground 142.Inhale wave plate 146 and increase formed changes of magnetic field because of current density in order to control.In general therefore the areas of high current density multidigit inhales the zone line that wave plate 146 preferably is arranged on system ground 142 in the middle of system ground 142.Aforementioned portable electric device 10 can further suppress electromagnetic interference by conducting strip 144 and suction wave plate 146, make portable electric device 10 more meet (the Federal Communications Commission of FCC, FCC) hearing aid compatibility of Zhi Dinging (Hearing AidCompatibility, HAC) standard.
Please be simultaneously with reference to Fig. 7 A and Fig. 7 B, Fig. 7 A and Fig. 7 B are respectively the stereogram of balanced type antenna different angles, and the mode of more drawing with hacures in Fig. 7 B more clearly demonstrates the actual form (pattern) of antenna.Aforementioned balanced type antenna 130 comprises radiant body front 132, the radiant body back side 134 and radiant body side 136, and balanced type antenna 130 comprises feeding portion 131 and grounding parts 133 in addition, and wherein feeding portion 131 is electrically connected to body 140 respectively with grounding parts 133.More clearly, extended two strips (strip) part that bends out towards the radiant body back side 134 by radiant body front 132 and formed feeding portion 131 and grounding parts 133 individually, and this feeding portion 131 and grounding parts 133 respectively by a shell fragment (springfinger) to do electric connection with body 140.Radiant body positive 132 is parallel and relative with the radiant body back side 134.Radiant body side 136 is electrically connected at the radiant body positive 132 and the radiant body back side 134, and perpendicular to the radiant body positive 132 and the radiant body back side 134.Because conventional balanced formula antenna oversize, and mobile communications device stresses compact design again, therefore balanced type antenna can't be widely applied to mobile communications device in the past.Balanced type antenna 130 shown in Fig. 7 A and Fig. 7 B is by the mode of folding (folded), (also being interpreted as portable electric device operates under certain characteristic frequency to dwindle the required current path of balanced type antenna, the radiation resonant path that wireless signal is required), it can be set in the portable electric device 10, and balanced type antenna 130 is a benchmark with transversal A-A, forms the structure of left and right sides symmetrical expression (symmetry).More importantly, balanced type antenna 130 is a loop antenna (loop antenna), because the electric current that flows into balanced type antenna 130 equals to flow out the electric current of balanced type antenna 130, therefore can further avoid on substrate, producing induced current, so can improve the electromagnetic interference of portable electric device 10 significantly.
The disclosed mobile communications device of the above embodiment of the present invention has multiple advantages, below only enumerates the part advantage and is described as follows:
One, the induced current on the reduction substrate.
Two, meet hearing aid compatibility (Hearing Aid Compatibility, HAC) standard.
In sum, though the present invention with a preferred embodiment openly as above, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (10)
1. portable electric device comprises:
One housing has a top and a bottom;
One receiver is arranged in this housing and adjacent this top; And
One balanced type antenna is arranged in this housing and adjacent this bottom; And
One body is arranged in this housing and is electrically connected to this receiver and this balanced type antenna.
2. portable electric device according to claim 1, the electric current that wherein flows into this balanced type antenna equals to flow out the electric current of this balanced type antenna.
3. portable electric device according to claim 1, wherein this balanced type antenna is between this housing and this body.
4. portable electric device according to claim 1, wherein this balanced type antenna is a loop antenna.
5. portable electric device according to claim 4, wherein this loop antenna is a three-dimensional structure.
6. portable electric device according to claim 5, wherein this loop antenna comprises:
One first radiant body;
One second radiant body, parallel and relative with this first radiant body; And
One the 3rd radiant body connects this first radiant body and this second radiant body, and respectively perpendicular to this first radiant body and this second radiant body;
Wherein this loop antenna forms the structure of a symmetrical expression.
7. portable electric device according to claim 6 is wherein extended the two strips part that bends out by this first radiant body towards this second radiant body and is formed a feeding portion and a grounding parts individually, and this feeding portion and this grounding parts are electrically connected to body respectively.
8. portable electric device according to claim 1, wherein this body also comprises:
One ground plane is electrically connected to this balanced type antenna;
One conducting strip electrically connects this ground plane and adjacent this top.
9. portable electric device according to claim 7 also comprises:
One inhales wave plate, increases formed changes of magnetic field in order to control because of this current density.
10. portable electric device according to claim 9, wherein this suction wave plate is arranged on the zone line of this ground plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910149426 CN101924803B (en) | 2009-06-16 | 2009-06-16 | Handheld electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910149426 CN101924803B (en) | 2009-06-16 | 2009-06-16 | Handheld electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101924803A true CN101924803A (en) | 2010-12-22 |
| CN101924803B CN101924803B (en) | 2012-12-19 |
Family
ID=43339440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910149426 Active CN101924803B (en) | 2009-06-16 | 2009-06-16 | Handheld electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101924803B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1284762A (en) * | 1999-08-06 | 2001-02-21 | 索尼公司 | Aerial device and portable wireless mobile telephone |
| US20020018021A1 (en) * | 2000-07-19 | 2002-02-14 | Yoshio Koyanagi | Antenna apparatus |
| US20090111541A1 (en) * | 2007-10-25 | 2009-04-30 | Chang-Il Kim | Portable terminal |
-
2009
- 2009-06-16 CN CN 200910149426 patent/CN101924803B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1284762A (en) * | 1999-08-06 | 2001-02-21 | 索尼公司 | Aerial device and portable wireless mobile telephone |
| US20020018021A1 (en) * | 2000-07-19 | 2002-02-14 | Yoshio Koyanagi | Antenna apparatus |
| US20090111541A1 (en) * | 2007-10-25 | 2009-04-30 | Chang-Il Kim | Portable terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101924803B (en) | 2012-12-19 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |