CN102386950A - Portable electronic device and antenna switching method - Google Patents
Portable electronic device and antenna switching method Download PDFInfo
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- CN102386950A CN102386950A CN2010102751399A CN201010275139A CN102386950A CN 102386950 A CN102386950 A CN 102386950A CN 2010102751399 A CN2010102751399 A CN 2010102751399A CN 201010275139 A CN201010275139 A CN 201010275139A CN 102386950 A CN102386950 A CN 102386950A
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Abstract
The invention discloses a portable electronic device, which is suitable for antenna switching to lower an electromagnetic wave absorption specific value. When the portable electronic device is used for wireless communication, a detector can convey a detection message to a control circuit according to the distance of an objected to be detected, and the control circuit is switched to different antennae so as to lower the electromagnetic wave absorption specific value to the object to be detected by the portable electronic device.
Description
Technical field
The invention relates to a kind of portable electronic apparatus, particularly about switch the portable electronic apparatus of different antennae or antenna performance according to the distance of object and portable electronic apparatus.
Background technology
Along with the prosperity of mobile communication technology, portable electronic apparatus is more prevalent in recent years, and is for example common: the portable electronic apparatus of hand-held computer, mobile phone, multimedia player and other mixed function.In order to satisfy people's demand, portable electronic apparatus has the function of wireless telecommunications usually.Some contains the wireless communication range of long distance; For example: mobile phone uses the frequency band of 2G, 3G, LTE system and the 700MHz that uses, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz to carry out communication; Some then contains short-range wireless communication range, and for example: Wi-Fi, Bluetooth and WiMAX system use the frequency band of 2.4GHz, 3.5GHz, 5.2GHz and 5.8GHz to carry out communication.
Yet present portable electronic apparatus all can't avoid letting the user expose to the open air under the environment that has electromagnetic wave to transmit, for example: in the time of mobile phone calling, can near user's head, transmit electromagnetic wave.Therefore, government has formulated the electromagnetic upper limit of absorption of human body, its criterion be electro-magnetic wave absorption ratio (specific absorption rate, SAR).So-called electro-magnetic wave absorption ratio; Be meant (this equipment and human body remain on 20 centimeters with interior distance) in the general electromagnetic radiation environment; The organism unit mass absorbs ratio to electromagnetic wave energy; Unit be " watt/kilogram " (W/kg), what at present adopted in Taiwan is the electro-magnetic wave absorption ratio standard value in Europe, is codes and standards with electro-magnetic wave absorption ratio less than 2W/Kg.
Research and development and making that each well-known big factory of the world all drops into flat computer (Tablet PC) at present; Because flat computer has the situation about using on the human body that is placed on, the flat computer that usually causes developing can't detect through legal electro-magnetic wave absorption ratio.The key that influences electro-magnetic wave absorption ratio size is that (Total Radiated Power, TRP), and the total radiation energy of antenna is normally determined by antenna efficiency and radio frequency power output (RF conducted power) for the total radiation energy of antenna.Detector is installed additional in some design manufacturer on flat computer, when human body near the time reduce radio frequency power output to reduce electro-magnetic wave absorption ratio.Yet the decision of radio frequency power output should be depended on the distance of flat computer and base station, if reduce radio frequency power output because of the approaching factor of human body, with the quality that influences wireless telecommunications.
Summary of the invention
The present invention provides a kind of portable electronic apparatus, comprising: one first antenna; One second antenna; One detector detects the distance of an above-mentioned detector and an object, and produces a detect-message according to testing result; And a control circuit, receive above-mentioned detect-message, and select one of above-mentioned first antenna and above-mentioned second antenna to receive or transmit according to above-mentioned detect-message.
In addition, the present invention provides a kind of antenna switching method, is applicable to the handheld electronic apparatus with one first antenna and one second antenna, comprising: detect the distance of an object with respect to above-mentioned handheld electronic apparatus; Produce a detect-message according to above-mentioned distance; And select one of above-mentioned first antenna and above-mentioned second antenna to receive or transmit according to above-mentioned detect-message.
In addition, the present invention provides a kind of portable electronic apparatus, comprising: an active antenna comprises a plurality of sub antennas, in order to receive or to transmit; One detector detects the distance of an above-mentioned active antenna and an object, and produces a detect-message according to testing result; One control circuit receives the above-mentioned detect-message of above-mentioned detector, and switches to one first sub antenna or one second sub antenna of above-mentioned active antenna according to above-mentioned detect-message.
In addition, the present invention provides a kind of portable electronic apparatus, comprising: a plurality of antennas; A plurality of detectors in order to detecting among the above-mentioned antenna distance of each and an object, and produce a plurality of detect-message according to testing result; And a control circuit, receive above-mentioned detect-message, and select receiving or transmit wherein of above-mentioned antenna according to above-mentioned detect-message.
Description of drawings
Fig. 1 is the sketch map that shows according to the described portable electronic apparatus of one embodiment of the invention;
Fig. 2 is the sketch map that shows according to the described portable electronic apparatus of another embodiment of the present invention;
Fig. 3 is the flow chart that shows according to the described antenna switching method of one embodiment of the invention;
Fig. 4 is the sketch map that shows according to the described portable electronic apparatus of another embodiment of the present invention;
Fig. 5 is the sketch map that shows according to the described portable electronic apparatus of another embodiment of the present invention.
[main element label declaration]
10,20,40,50～portable electronic apparatus;
11a, 11b, 21a, 21b, 51a, 51b～antenna;
13,23,43,53a, 53b～detector;
14,24,44,54～control circuit;
15,25,45,55～body to be measured;
41～initiatively antennas;
41a, 41b～sub antenna;
A1, A2, A4, A51, A52～detect-message.
Embodiment
Fig. 1 is the Organization Chart that shows according to the described portable electronic apparatus 10 of one embodiment of the invention.As shown in the figure, portable electronic apparatus 10 comprises antenna 11a, antenna 11b, detector 13 and control circuit 14.Wherein portable electronic apparatus 10; Can be mobile phone, notebook computer, flat computer (tablet), personal digital assistant (personal digital assistant, PDA), multimedia player, game machine, GPS navigation machine or the electronic apparatus of other tool wireless communication function.Antenna 11a and antenna 11b can be that planar inverted F-shape antenna (planar inverted F antenna), unipole antenna (monopole antenna), loop antenna (loop antenna), helical antenna (helical antenna) and antenna component (chip antenna) or other can be used for the antenna of portable electronic apparatus 10.But detector 13 can be infrared detector, light source detection device, pressure detector, closely connect detector, ultrasonic waves detector or other inspected object or human body distance detection device.Among the embodiment as shown in Figure 1, the position that antenna 11a and antenna 11b are put near, both can have different antennas efficient, or have different radiation patterns.What deserves to be mentioned is; Fig. 1 only indicates the element of the important portable electronic apparatus directly related with the present invention; All the other are for example: this technical field personages such as signal emitting-source, central processing unit other known element do not discuss at this, also be not shown on the figure.In the time of at the beginning, the control circuit 14 of portable electronic apparatus 10 uses antenna 11a to carry out the reception and the transmission of wireless communication signal.In the process of the reception of wireless communication signal and transmission,, can transmit detect-message A1 and give control circuit 14 when detector 13 detects body 15 distance detectors 13 to be measured less than one both during set a distance when (for example 2 centimeters).Must be noted that body 15 to be measured can be human body or object.When control circuit 14 receives detect-message A1; Promptly switch to another untapped antenna; For example: switch to antenna 11b from antenna 11a, change and let portable electronic apparatus 10 carry out the reception and the transmission of wireless communication signal with another original untapped antenna 11b.Control circuit 14 among Fig. 1 switches between two antennas with solid arrow and the representative of dotted line arrow.Should be noted that; Though be to express control circuit 14 with the illustration of switch can switch the notion that institute's desire is used antenna in the diagram; In practical operation; Be not to use the switch of entity to reach above-mentioned change action, for example, control circuit 14 also can be passed to specified antenna with this antenna of feed-in with signal with various known technologies.In this embodiment; Antenna 11b can be aerial radiation field pattern and antenna 11a different antennas; Be preferably the aerial radiation field pattern not towards the antenna of body 15 to be measured; Even radio frequency power output all remains unchanged like this, still can reduce the electro-magnetic wave absorption ratio of portable electronic apparatus 10 for body 15 to be measured in whole handoff procedure.In addition, when using antenna 11b, when detector 13 detects body to be measured 15 away from detector 13, also can transmit detect-message A1 and give control circuit 14, make control circuit 14 switch the line 11a that saves the situation.
In another embodiment, the efficient of antenna 11a is good than antenna 11b, so the control circuit 14 of portable electronic apparatus 10 at first uses antenna 11a to carry out the reception and the transmission of wireless communication signal.In the process of the reception of wireless communication signal and transmission, the distance that detects body 15 to be measured and detector 13 when detector 13 promptly transmits detect-message A1 and gives control circuit 14 less than one both during set a distance.When control circuit 14 receives detect-message A1, promptly switch to antenna 11b, change and let portable electronic apparatus 10 carry out the reception and the transmission of wireless communication signal with antenna 11b.In this embodiment, because the efficient of antenna 11b is relatively poor,, still can reduce the electro-magnetic wave absorption ratio of portable electronic apparatus 10 in whole handoff procedure for body 15 to be measured even radio frequency power output all remains unchanged like this.In addition; When using antenna 11b; When detector 13 detects body to be measured 15 away from detector 13, promptly transmit detect-message A1 and give control circuit 14, make control circuit 14 switch the line 11a that saves the situation; To use the preferable antenna 11a of efficient to carry out the reception and the transmission of wireless communication signal, to obtain communication quality preferably.
Fig. 2 is the Organization Chart that shows according to the described portable electronic apparatus 20 of another embodiment of the present invention.Among the embodiment as shown in Figure 2, antenna 21a is placed in different positions with antenna 21b, and the distance of antenna 21a and body to be measured 25, less than the distance of antenna 21b and body to be measured 25.In this embodiment, detector 23 can be placed on the place near antenna 21a.Same, Fig. 2 only indicates the element of the important portable electronic apparatus directly related with the present invention, and all the other elements are not discussed at this, also are not shown on the figure.In the time of at the beginning, the control circuit 24 of portable electronic apparatus 20 can select to connect antenna 21a, in order to reception and the transmission of carrying out wireless communication signal.In the process of the reception of wireless communication signal and transmission, the distance that detects body 25 to be measured and detector 23 when detector 23 promptly transmits detect-message A2 and gives control circuit 24 less than one both during set a distance.When control circuit 24 receives detect-message A2, promptly switch to antenna 21b, change and let portable electronic apparatus 20 to carry out the reception and the transmission of wireless communication signal away from the antenna 21b of body 25 to be measured.Even radio frequency power output all remains unchanged like this, still can reduce the electro-magnetic wave absorption ratio of portable electronic apparatus 20 for body 25 to be measured in whole handoff procedure.In addition, using antenna 21b to carry out in the process of reception and transmission of wireless communication signal, when detector 23 detects body to be measured 25 away from detector 23, also can transmit detect-message A2 and give control circuit 24, making control circuit 24 switch the line 21a that saves the situation.
Fig. 3 is the flow process Figure 30 that shows according to the described antenna switching method of one embodiment of the invention, is applicable to the handheld electronic apparatus with first antenna and second antenna.This portable electronic apparatus can be selected to receive or transmit signal by first antenna or second antenna.This method is begun by step S32, at first detects the distance of body to be measured and portable electronic apparatus.At step S34, whether judge body to be measured near portable electronic apparatus, if the distance of body to be measured and portable electronic apparatus then is judged as " being " less than a both set a distance; Otherwise, if the distance of body to be measured and portable electronic apparatus then is judged as " denying " greater than a both set a distance.At step S36, not approaching because of body to be measured, use the first original antenna to receive or transmit signal; At step S38, approaching because of body to be measured, then must use another second antenna instead, second antenna can be that antenna efficiency is relatively poor, or radiation pattern is towards body to be measured, or than the antenna of first antenna away from above-mentioned body to be measured.What deserves to be mentioned is in the method, no matter whether select different antennae, all keep identical radio frequency power output.
Fig. 4 is the Organization Chart that shows according to the described portable electronic apparatus 40 of one embodiment of the invention.Among the embodiment as shown in Figure 4, initiatively antenna 41 comprises a plurality of sub antennas, for example: the first sub antenna 41a and the second sub antenna 41b.Though initiatively can there be the sub antenna more than three in icon two sub-antennas only among Fig. 4 in the antenna 41.A plurality of sub antennas can have different antennas efficient, or have different radiation patterns.What deserves to be mentioned is that Fig. 4 only indicates the element of the important portable electronic apparatus directly related with the present invention, all the other elements are not discussed at this, also are not shown on the figure.At first, the control circuit 44 of portable electronic apparatus 40 can select to connect the initiatively sub antenna 41a of antenna 41, in order to reception and the transmission of carrying out wireless communication signal.The distance that detects body to be measured 45 and detector 43 when detector 43 promptly transmits detect-message A4 and gives control circuit 44 less than one both during set a distance.When control circuit 44 receives detect-message A4; Promptly switch to another untapped sub antenna; For example: switch to sub antenna 41b from sub antenna 41a, change and let portable electronic apparatus 40 carry out the reception and the transmission of wireless communication signal with another original untapped sub antenna 41b.Sub antenna 41b can be a sub antenna that antenna efficiency is relatively poor; Or the aerial radiation field pattern is not towards the sub antenna of body 45 to be measured; Even radio frequency power output all remains unchanged like this, still can reduce the electro-magnetic wave absorption ratio of portable electronic apparatus 40 for body 45 to be measured in whole handoff procedure.In addition, using sub antenna 41b to carry out in the process of reception and transmission of wireless communication signal, when detector 43 detects body to be measured 45 away from detector 43, also can transmit detect-message A4 and give control circuit 44, making control circuit 44 switch back sub antenna 41a.
Fig. 5 is the Organization Chart that shows according to the described portable electronic apparatus 50 of one embodiment of the invention.Among the embodiment as shown in Figure 5, portable electronic apparatus 50 comprises a plurality of antennas and a plurality of detector, though icon only has two antennas and two detectors, actual conditions can have antenna and the detector more than three.Antenna 51a is placed in different positions with antenna 51b, and detector 53a can be placed on the place near antenna 51a, and detector 53b can be placed on the place near antenna 51b.Among the embodiment as shown in Figure 5, antenna 51a and antenna 51b can have different antennas efficient, or have different radiation patterns.Likewise, Fig. 5 only indicates the element of the important portable electronic apparatus directly related with the present invention, and all the other elements are not discussed at this, also are not shown on the figure.In the time of at the beginning, detector 53a detects the distance of body 55 to be measured and antenna 51a, and detector 53b detects the distance of body 55 to be measured and antenna 51b, and respectively produces detect-message A51 and detect-message A52.Control circuit 54 relatively after both, switches to and body 55 distances to be measured antenna far away according to the detect-message A51 and the detect-message A52 that receive again.If body 55 to be measured is far away apart from antenna 51a, promptly switch to antenna 51a; If body 55 to be measured is far away apart from antenna 51b, promptly switch to antenna 51b, with reception and the transmission of carrying out wireless communication signal.Even radio frequency power output all remains unchanged like this, still can reduce the electro-magnetic wave absorption ratio of portable electronic apparatus 50 for body 55 to be measured in whole handoff procedure.
Though the present invention discloses as above with preferred embodiment; So it is not in order to limit scope of the present invention; Any those skilled in the art; Do not breaking away from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim scope person of defining.
Claims (19)
1. portable electronic apparatus comprises:
One first antenna;
One second antenna;
One detector detects the distance of an above-mentioned detector and an object, and produces a detect-message according to testing result; And
One control circuit receives above-mentioned detect-message, and selects one of above-mentioned first antenna and above-mentioned second antenna to receive or transmit according to above-mentioned detect-message.
2. portable electronic apparatus according to claim 1, wherein above-mentioned first antenna has different radiation patterns with above-mentioned second antenna.
3. portable electronic apparatus according to claim 1, wherein above-mentioned first antenna and above-mentioned second antenna have different antennas efficient.
4. portable electronic apparatus according to claim 1; The distance of wherein above-mentioned first antenna and above-mentioned object is less than the distance of above-mentioned second antenna and above-mentioned object; When the distance of above-mentioned first antenna and above-mentioned object less than one both during set a distance; Above-mentioned control circuit is selected above-mentioned second antenna to receive or is transmitted, and when the distance of above-mentioned first antenna and above-mentioned object during greater than above-mentioned both set a distances, above-mentioned control circuit is selected above-mentioned first antenna reception or transmitted.
5. portable electronic apparatus according to claim 1, wherein above-mentioned first antenna has identical radio frequency power output with above-mentioned second antenna.
6. an antenna switching method is applicable to the handheld electronic apparatus with one first antenna and one second antenna, comprising:
Detect the distance of an object with respect to above-mentioned handheld electronic apparatus;
Produce a detect-message according to above-mentioned distance; And
Select one of above-mentioned first antenna and above-mentioned second antenna to receive or transmit according to above-mentioned detect-message.
7. antenna switching method according to claim 6, wherein above-mentioned first antenna has different radiation patterns with above-mentioned second antenna.
8. antenna switching method according to claim 6, wherein above-mentioned first antenna and above-mentioned second antenna have different antennas efficient.
9. antenna switching method according to claim 6; The distance of wherein above-mentioned first antenna and above-mentioned object is less than the distance of above-mentioned second antenna and above-mentioned object; When the distance of above-mentioned first antenna and above-mentioned object less than one both during set a distance; The indication of above-mentioned detect-message is selected above-mentioned second antenna to receive or is transmitted, and when the distance of above-mentioned first antenna and above-mentioned object during greater than above-mentioned both set a distances, above-mentioned first antenna reception of above-mentioned detect-message indication selection or transmit.
10. antenna switching method according to claim 6, wherein above-mentioned first antenna has identical radio frequency power output with above-mentioned second antenna.
11. a portable electronic apparatus comprises:
One active antenna comprises a plurality of sub antennas, in order to receive or to transmit;
One detector detects the distance of an above-mentioned active antenna and an object, and produces a detect-message according to testing result;
One control circuit receives the above-mentioned detect-message of above-mentioned detector, and switches to one first sub antenna or one second sub antenna of above-mentioned active antenna according to above-mentioned detect-message.
12. portable electronic apparatus according to claim 11, wherein above-mentioned first sub antenna has different radiation patterns with above-mentioned second sub antenna.
13. portable electronic apparatus according to claim 11, wherein above-mentioned first sub antenna and above-mentioned second sub antenna have different antennas efficient.
14. portable electronic apparatus according to claim 11, wherein above-mentioned first sub antenna has identical radio frequency power output with above-mentioned second sub antenna.
15. a portable electronic apparatus comprises:
A plurality of antennas;
A plurality of detectors in order to detecting among the above-mentioned antenna distance of each and an object, and produce a plurality of detect-message according to testing result; And
One control circuit receives above-mentioned detect-message, and selects receiving or transmit wherein of above-mentioned antenna according to above-mentioned detect-message.
16. portable electronic apparatus according to claim 15, wherein above-mentioned antenna has different radiation patterns.
17. portable electronic apparatus according to claim 15, wherein above-mentioned antenna has different antennas efficient.
18. portable electronic apparatus according to claim 15, wherein above-mentioned control circuit according to above-mentioned detect-message, are selected among the above-mentioned antenna and maximum one the receiving or transmit of object distance.
19. portable electronic apparatus according to claim 15, wherein above-mentioned antenna has identical radio frequency power output.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102751399A CN102386950A (en) | 2010-09-06 | 2010-09-06 | Portable electronic device and antenna switching method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102751399A CN102386950A (en) | 2010-09-06 | 2010-09-06 | Portable electronic device and antenna switching method |
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| CN102386950A true CN102386950A (en) | 2012-03-21 |
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| CN2010102751399A Pending CN102386950A (en) | 2010-09-06 | 2010-09-06 | Portable electronic device and antenna switching method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104426590A (en) * | 2013-08-19 | 2015-03-18 | 中兴通讯股份有限公司 | Method for reducing electromagnetic wave energy specific absorption rate and mobile terminal |
| CN104752831A (en) * | 2013-12-31 | 2015-07-01 | 深圳富泰宏精密工业有限公司 | Wireless communication device and antenna switching system |
| CN105703846A (en) * | 2014-11-28 | 2016-06-22 | 展讯通信（上海）有限公司 | System and method for detecting mobile terminal using state for self-adaptive adjustment of antenna state |
| CN105978635A (en) * | 2016-04-22 | 2016-09-28 | 广东欧珀移动通信有限公司 | Method and device for preventing specific absorption rate from being beyond standard, and mobile equipment |
| CN107277199A (en) * | 2017-06-30 | 2017-10-20 | 联想(北京)有限公司 | The antenna module and electronic equipment of a kind of electronic equipment |
| CN107645596A (en) * | 2017-09-18 | 2018-01-30 | 青岛海信移动通信技术股份有限公司 | A kind of method, device and mobile terminal for reducing mobile terminal SAR value |
| CN108259056A (en) * | 2018-01-24 | 2018-07-06 | 广东欧珀移动通信有限公司 | Antenna module, terminal device and improvement aerial radiation refer to calibration method |
| CN108307062A (en) * | 2018-01-24 | 2018-07-20 | 广东欧珀移动通信有限公司 | Antenna switching method, system, electronic device and computer readable storage medium |
| CN108321492A (en) * | 2018-01-19 | 2018-07-24 | 广东欧珀移动通信有限公司 | Electronic equipment |
| CN109219930A (en) * | 2016-07-12 | 2019-01-15 | 华为技术有限公司 | The specific absorption method of rate control and wireless telecom equipment of wireless telecom equipment |
| CN110519417A (en) * | 2018-05-21 | 2019-11-29 | Oppo广东移动通信有限公司 | Electronic device |
| CN112152650A (en) * | 2020-09-25 | 2020-12-29 | Oppo广东移动通信有限公司 | Electromagnetic wave absorption parameter control method, device, terminal and storage medium |
| CN112886978A (en) * | 2021-01-28 | 2021-06-01 | 维沃移动通信有限公司 | Radio frequency circuit, electronic device and control method |
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| CN104426590A (en) * | 2013-08-19 | 2015-03-18 | 中兴通讯股份有限公司 | Method for reducing electromagnetic wave energy specific absorption rate and mobile terminal |
| CN104752831A (en) * | 2013-12-31 | 2015-07-01 | 深圳富泰宏精密工业有限公司 | Wireless communication device and antenna switching system |
| CN104752831B (en) * | 2013-12-31 | 2019-11-22 | 深圳富泰宏精密工业有限公司 | Wireless communication device and its antenna switching system |
| CN105703846A (en) * | 2014-11-28 | 2016-06-22 | 展讯通信（上海）有限公司 | System and method for detecting mobile terminal using state for self-adaptive adjustment of antenna state |
| CN105978635B (en) * | 2016-04-22 | 2019-02-12 | Oppo广东移动通信有限公司 | A kind of method, apparatus and mobile device that control specific absorption rate is exceeded |
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| CN109219930A (en) * | 2016-07-12 | 2019-01-15 | 华为技术有限公司 | The specific absorption method of rate control and wireless telecom equipment of wireless telecom equipment |
| CN109219930B (en) * | 2016-07-12 | 2021-05-18 | 华为技术有限公司 | Specific absorption rate control method for wireless communication device and wireless communication device |
| CN107277199A (en) * | 2017-06-30 | 2017-10-20 | 联想(北京)有限公司 | The antenna module and electronic equipment of a kind of electronic equipment |
| CN107645596A (en) * | 2017-09-18 | 2018-01-30 | 青岛海信移动通信技术股份有限公司 | A kind of method, device and mobile terminal for reducing mobile terminal SAR value |
| CN108321492B (en) * | 2018-01-19 | 2020-05-12 | Oppo广东移动通信有限公司 | Electronic device |
| CN108321492A (en) * | 2018-01-19 | 2018-07-24 | 广东欧珀移动通信有限公司 | Electronic equipment |
| CN108259056B (en) * | 2018-01-24 | 2020-03-10 | Oppo广东移动通信有限公司 | Antenna assembly, terminal equipment and method for improving antenna radiation index |
| CN108307062A (en) * | 2018-01-24 | 2018-07-20 | 广东欧珀移动通信有限公司 | Antenna switching method, system, electronic device and computer readable storage medium |
| CN108259056A (en) * | 2018-01-24 | 2018-07-06 | 广东欧珀移动通信有限公司 | Antenna module, terminal device and improvement aerial radiation refer to calibration method |
| CN110519417A (en) * | 2018-05-21 | 2019-11-29 | Oppo广东移动通信有限公司 | Electronic device |
| CN110519417B (en) * | 2018-05-21 | 2021-05-04 | Oppo广东移动通信有限公司 | Electronic device |
| CN112152650A (en) * | 2020-09-25 | 2020-12-29 | Oppo广东移动通信有限公司 | Electromagnetic wave absorption parameter control method, device, terminal and storage medium |
| CN112886978A (en) * | 2021-01-28 | 2021-06-01 | 维沃移动通信有限公司 | Radio frequency circuit, electronic device and control method |
| CN112886978B (en) * | 2021-01-28 | 2022-06-24 | 维沃移动通信有限公司 | Radio frequency circuit, electronic device and control method |
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Application publication date: 20120321 |