CN201910796U - Antenna switching device and mobile communication device with same - Google Patents
Antenna switching device and mobile communication device with same Download PDFInfo
- Publication number
- CN201910796U CN201910796U CN2011200065525U CN201120006552U CN201910796U CN 201910796 U CN201910796 U CN 201910796U CN 2011200065525 U CN2011200065525 U CN 2011200065525U CN 201120006552 U CN201120006552 U CN 201120006552U CN 201910796 U CN201910796 U CN 201910796U
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- 238000010295 mobile communication Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model relates to an antenna auto-change over device and mobile communication device who has antenna auto-change over device thereof. The antenna switching device is used for a mobile communication device and comprises an antenna module, a first short-circuit end, a second short-circuit end and a switching module; the antenna module is provided with a feed-in part and a short-circuit part, and the feed-in part is connected with a feed-in wire to transmit wireless communication signals; the first short-circuit end and the second short-circuit end are electrically connected to the grounding end; the switching module is electrically connected with the short-circuit part, the first short-circuit end or the second short-circuit end, and is used for selectively controlling the short-circuit part to be electrically connected with the first short-circuit end or the second short-circuit end, wherein the path length of the short-circuit part connected to the ground end through the first short-circuit end is shorter than the path length of the short-circuit part connected to the ground end through the second short-circuit end. The utility model discloses make mobile communication device need not reduce transmission power, can reduce electromagnetic wave intensity in order to accord with SAR's demand, save the space of overall arrangement on the circuit board.
Description
Technical field
The utility model relates to a kind of antenna-switching device and has the mobile communications device of antenna-switching device, particularly a kind of antenna-switching device of ground path length of switchable antenna module and have the mobile communications device of antenna-switching device.
Background technology
Along with the progress of science and technology, mobile communications device is used in the daily life widely, so the user also may be exposed in the electromagnetic wave at any time.And when the user used mobile communications device, the electromagnetic wave of mobile communications device had influence on human body, and therefore mobile communications device now all must be through the test of SAR (Specific Absorption Rate (specific absorption rate)).
In the prior art openly when human body near the time, mobile communications device reduces the mode of the power of the signal transmitted.The electromagnetic intensity that different antennas reduces the transmission wireless communication signal is switched in the mobile communications device utilization of prior art.But if use the switching mode of prior art, mobile communications device inside must have extra circuit space to dispose a plurality of Anneta modules, for requiring compact mobile communications device now, just must there be more complicated circuit layout the inside of mobile communications device, can increase many manufacturing costs thus.
In view of this, be necessary to create a kind of new antenna-switching device and have the mobile communications device of antenna-switching device, to solve the disappearance of prior art.
The utility model content
Main purpose of the present utility model is that a kind of antenna-switching device is being provided, and it has the function of the ground path length of switchable antenna module.
Main purpose of the present utility model is that a kind of mobile communications device with above-mentioned antenna-switching device is being provided
For reaching above-mentioned purpose, antenna-switching device of the present utility model is used for a mobile communications device, and this antenna-switching device comprises an Anneta module, one first short-circuit end, one second short-circuit end and all die change pieces; This Anneta module has a feeding portion and a short circuit portion, and this feeding portion connects a feed-in line to transmit a wireless communication signals; This first short-circuit end and this second short-circuit end are electrically connected to an earth terminal; This short circuit portion of this handover module and this Anneta module, this first short-circuit end or this second short-circuit end electrically connect, this handover module electrically connects in order to this short circuit portion of optionally controlling this Anneta module and this first short-circuit end or with this second short-circuit end, and wherein this short circuit portion of this Anneta module path of being connected to this earth terminal via this first short-circuit end this short circuit portion of being shorter than this Anneta module is connected to the path of this earth terminal via second short-circuit end.
Mobile communications device with antenna-switching device of the present utility model comprises a processing module and an antenna-switching device, this antenna-switching device and this processing module electrically connect, and this antenna-switching device comprises an Anneta module, one first short-circuit end, one second short-circuit end and all die change pieces; This Anneta module has a feeding portion and a short circuit portion, this feeding portion connect a feed-in line with a wireless signals to this processing module; This first short-circuit end and this second short-circuit end are electrically connected to an earth terminal; This short circuit portion of this handover module and this Anneta module, this first short-circuit end or this second short-circuit end electrically connect, this processing module is controlled this handover module and is optionally switched this short circuit portion of this Anneta module and this first short-circuit end or electrically connect with this second short-circuit end, and wherein this short circuit portion of this Anneta module path of being connected to this earth terminal via this first short-circuit end this short circuit portion of being shorter than this Anneta module is connected to the path of this earth terminal via this second short-circuit end.
By antenna-switching device of the present utility model, mobile communications device does not need to reduce transmitting power, can reduce electromagnetic intensity to meet the demand of SAR, also not need to reserve extra circuit space simultaneously second group of Anneta module is set, can save down the space of layout on the circuit board.
Because the utility model structure is novel, can provide on the industry and utilize, and truly have the enhancement effect, so apply for novel patent in accordance with the law.
Description of drawings
Fig. 1 is the schematic diagram of the mobile communications device of an embodiment of the present utility model.
Fig. 2 is the circuit framework figure of the antenna-switching device of an embodiment of the present utility model.
Fig. 3 connects the antenna-reflected loss schematic diagram of different short-circuit ends for Anneta module of the present utility model.
The primary clustering symbol description:
Antenna-switching device 10 handover modules 13
Anneta module 11 direct currents block module 131
The 11b of short circuit portion earth terminal G
First short-circuit end, 121 feed-in line L
Embodiment
For above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, cited below particularlyly go out specific embodiment of the utility model, and cooperate appended accompanying drawing, be described in detail below.
The relevant schematic diagram that below please is used for mobile communications device in the lump with reference to figure 1 and Fig. 2 about the antenna-switching device of an embodiment of the present utility model, wherein Fig. 1 is the schematic diagram of the mobile communications device of an embodiment of the present utility model, and Fig. 2 is the circuit framework figure of the antenna-switching device of an embodiment of the present utility model.
Antenna-switching device 10 comprises Anneta module 11, first short-circuit end 121, second short-circuit end 122 and handover module 13.Anneta module 11 is in order to the required wireless communication signals of transmission mobile communications device 1.In an embodiment of the present utility model, Anneta module 11 can be a dull and stereotyped inverted-F antenna, but the utility model is not as limit.Anneta module 11 comprises feeding portion 11a and the 11b of short circuit portion.Feeding portion 11a and feed-in line L electrically connect, in order to wireless signals to processing module 20.The 11b of short circuit portion is as the usefulness of Anneta module 11 ground connection, and can further adjust antenna impedance by the path of ground connection, to change the reflection loss of Anneta module 11.Because the action principle of Anneta module 11 has been known by the correlative technology field person and has extensively been utilized, so do not repeat them here its principle.
First short-circuit end 121 and second short-circuit end 122 electrically connect with earth terminal G, and the 11b of short circuit portion of Anneta module 11 optionally electrically connects with first short-circuit end 121 or second short-circuit end 122 by handover module 13.Thus, Anneta module 11 just has the ground connection effect.
And please refer to circuit framework figure shown in Figure 2 about the detailed type of action of handover module 13.
In an embodiment of the present utility model, handover module 13 can be a single-pole double throw (Single Pole Double Throw, SPDT) switch module, but the utility model is not as limit.Handover module 13 electrically connects with the 11b of short circuit portion, first short-circuit end 121 or second short-circuit end 122 of Anneta module 11, and electrically connects with processing module 20 simultaneously.Handover module 13 utilizes the mode of switching so that the 11b of short circuit portion of Anneta module 11 optionally electrically connects with first short-circuit end 121 or with second short-circuit end 122 by the control of processing module 20.
And when being connected to earth terminal G via first short-circuit end 121 or being connected to earth terminal G via second short-circuit end 122, the 11b of short circuit portion of Anneta module 11 has different reflection losses.Therefore mobile communications device 1 can change the electromagnetism intensity of wireless communication signals by this.
And be noted that handover module 13 also can block module 131 with at least one direct current and electrically connect, the exhausted module 131 of flow resistance at least always perhaps can directly be set in the internal circuit of handover module 13.Direct current blocks module 131 and further electrically connects with wherein at least one end of the 11b of short circuit portion, first short-circuit end 121 or second short-circuit end 122 of Anneta module 11, in case stop signal disturbs.But the utility model does not exceed with above-mentioned execution mode.The direct current of present embodiment blocks module 131 and can be an electric capacity, but the utility model is not as limit.By the characteristic that the electric capacity high frequency opens circuit, direct current blocks module 131 can prevent handover module 13 when switching, the control signal of control handover module 13 the misinformate 11b of short circuit portion, first short-circuit end 121 or second short-circuit end 122.Therefore Anneta module 11 transmission wireless communication signals can not be switched the effect of signals of module 13.
Then please refer to Fig. 3, Fig. 3 connects the antenna-reflected loss schematic diagram of different short-circuit ends for Anneta module of the present utility model.
And the characteristic that Anneta module 11 connection first short-circuit ends 121 or second short-circuit end 122 are shown promptly as shown in Figure 3.For example, under initial condition, the 11b of short circuit portion of Anneta module 11 is connected to earth terminal G via first short-circuit end 121.Promptly as shown in Figure 3, the reflection loss that connects the Anneta module 11 of first short-circuit end 121 is about-7dB.To utilize sensing module (figure do not show) to sense object approaching and when processing module 20, or the user is when directly utilizing button (figure do not show) to wait device to control mobile communications device 1, processing module 20 may command handover modules 13 switch, and the 11b of short circuit portion of Anneta module 11 are switched to and second short-circuit end 122 electrically connects.Promptly as shown in Figure 3, the reflection loss that connects the Anneta module 11 of second short-circuit end 122 this moment is about-19dB.Hence one can see that, when the 11b of short circuit portion of Anneta module 11 is connected to earth terminal G via second short-circuit end 122 in longer path, can obtain bigger reflection loss, and then reduce the electromagnetic wave signal intensity of 11 transmission wireless communication signals of Anneta module.
By antenna-switching device 10 of the present utility model, mobile communications device 1 does not need to reduce transmitting power, can reduce electromagnetic intensity to meet the demand of SAR, also not need to reserve extra circuit space simultaneously second group of Anneta module is set, can save down the space of layout on the circuit board.
To sum up institute is old, and no matter the utility model everywhere all shows it totally different in the feature of known technology with regard to purpose, means and effect, earnestly asks the auditor to perceive, and grants quasi patent early, makes Jiahui society, and the true feeling moral just.Only it should be noted that above-mentioned many embodiment give an example for convenience of explanation, the utility model interest field required for protection should be as the criterion so that the scope of claims is described naturally, but not only limits to the foregoing description.
Claims (10)
1. an antenna-switching device is used for a mobile communications device, it is characterized in that, this antenna-switching device comprises:
One Anneta module, this Anneta module have a feeding portion and a short circuit portion, and this feeding portion connects a feed-in line to transmit a wireless communication signals;
One first short-circuit end, this first short-circuit end is electrically connected to an earth terminal;
One second short-circuit end, this second short-circuit end is electrically connected to this earth terminal; And
All die change pieces, this short circuit portion of this handover module and this Anneta module, this first short-circuit end or this second short-circuit end electrically connect, this handover module electrically connects in order to this short circuit portion of optionally controlling this Anneta module and this first short-circuit end or with this second short-circuit end, and wherein this short circuit portion of this Anneta module path of being connected to this earth terminal via this first short-circuit end this short circuit portion of being shorter than this Anneta module is connected to the path of this earth terminal via this second short-circuit end.
2. antenna-switching device as claimed in claim 1 is characterized in that, this handover module further blocks module with at least one direct current and electrically connects.
3. antenna-switching device as claimed in claim 2 is characterized in that, it is an electric capacity that this direct current blocks module.
4. antenna-switching device as claimed in claim 1 is characterized in that, this handover module is a single-pole double-throw switch (SPDT).
5. antenna-switching device as claimed in claim 1 is characterized in that, this Anneta module is a dull and stereotyped inverted-F antenna.
6. mobile communications device with antenna-switching device, this mobile communications device comprises:
One processing module; And
One antenna-switching device, this antenna-switching device and this processing module electrically connect, and it is characterized in that this antenna-switching device comprises:
One Anneta module, this Anneta module have a feeding portion and a short circuit portion, this feeding portion connect a feed-in line with a wireless signals to this processing module;
One first short-circuit end, this first short-circuit end is electrically connected to an earth terminal;
One second short-circuit end, this second short-circuit end is electrically connected to this earth terminal; And
All die change pieces, this short circuit portion of this handover module and this Anneta module, this first short-circuit end or this second short-circuit end electrically connect, this processing module is controlled this handover module and is optionally switched this short circuit portion of this Anneta module and this first short-circuit end or electrically connect with this second short-circuit end, and wherein this short circuit portion of this Anneta module path of being connected to this earth terminal via this first short-circuit end this short circuit portion of being shorter than this Anneta module is connected to the path of this earth terminal via this second short-circuit end.
7. the mobile communications device with antenna-switching device as claimed in claim 6 is characterized in that, this handover module further blocks module with at least one direct current and electrically connects.
8. the mobile communications device with antenna-switching device as claimed in claim 7 is characterized in that, it is an electric capacity that this direct current blocks module.
9. the mobile communications device with antenna-switching device as claimed in claim 6 is characterized in that, this handover module is a single-pole double-throw switch (SPDT).
10. the mobile communications device with antenna-switching device as claimed in claim 6 is characterized in that, this Anneta module is a dull and stereotyped inverted-F antenna.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100200296 | 2011-01-06 | ||
| TW100200296U TWM408886U (en) | 2011-01-06 | 2011-01-06 | Antenna switching device and mobile communication device having antenna switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910796U true CN201910796U (en) | 2011-07-27 |
Family
ID=44302994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200065525U Expired - Lifetime CN201910796U (en) | 2011-01-06 | 2011-01-11 | Antenna switching device and mobile communication device with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201910796U (en) |
| TW (1) | TWM408886U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115331A (en) * | 2013-12-20 | 2014-10-22 | 华为终端有限公司 | Antenna and terminal |
| CN105470647A (en) * | 2014-09-04 | 2016-04-06 | 神讯电脑(昆山)有限公司 | Radio frequency antenna |
| CN105490024A (en) * | 2014-09-23 | 2016-04-13 | 联想(北京)有限公司 | Antenna control apparatus, method and electronic equipment |
| CN107124196A (en) * | 2015-03-10 | 2017-09-01 | 联发科技股份有限公司 | Antenna allocation method and its device |
| CN108832281A (en) * | 2018-06-13 | 2018-11-16 | 瑞声精密制造科技(常州)有限公司 | Reduce the antenna system and its control method of SAR value |
| CN114978217A (en) * | 2022-04-15 | 2022-08-30 | 深圳市中天迅通信技术股份有限公司 | Method and system for reducing SAR (synthetic aperture radar) of mobile phone antenna |
-
2011
- 2011-01-06 TW TW100200296U patent/TWM408886U/en not_active IP Right Cessation
- 2011-01-11 CN CN2011200065525U patent/CN201910796U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115331A (en) * | 2013-12-20 | 2014-10-22 | 华为终端有限公司 | Antenna and terminal |
| CN104115331B (en) * | 2013-12-20 | 2016-09-28 | 华为终端有限公司 | A kind of antenna and terminal |
| US10283864B2 (en) | 2013-12-20 | 2019-05-07 | Huawei Device (Dongguan) Co., Ltd. | Antenna and terminal |
| CN105470647A (en) * | 2014-09-04 | 2016-04-06 | 神讯电脑(昆山)有限公司 | Radio frequency antenna |
| CN105490024A (en) * | 2014-09-23 | 2016-04-13 | 联想(北京)有限公司 | Antenna control apparatus, method and electronic equipment |
| CN107124196A (en) * | 2015-03-10 | 2017-09-01 | 联发科技股份有限公司 | Antenna allocation method and its device |
| CN108832281A (en) * | 2018-06-13 | 2018-11-16 | 瑞声精密制造科技(常州)有限公司 | Reduce the antenna system and its control method of SAR value |
| CN114978217A (en) * | 2022-04-15 | 2022-08-30 | 深圳市中天迅通信技术股份有限公司 | Method and system for reducing SAR (synthetic aperture radar) of mobile phone antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM408886U (en) | 2011-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |
|
| CX01 | Expiry of patent term |