CN104852136A - Multiband all-metal frame adjustable mobile phone antenna - Google Patents
Multiband all-metal frame adjustable mobile phone antenna Download PDFInfo
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- CN104852136A CN104852136A CN201510159917.0A CN201510159917A CN104852136A CN 104852136 A CN104852136 A CN 104852136A CN 201510159917 A CN201510159917 A CN 201510159917A CN 104852136 A CN104852136 A CN 104852136A
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- circuit board
- metal frame
- antenna
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- mobile phone
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Abstract
The invention relates to a multiband all-metal frame adjustable mobile phone antenna, including an all-metal frame and a circuit board. A gap is formed between the all-metal frame and the circuit board, and electromagnetic waves radiates through the gap; the left lower side of the circuit board is provided with an L-shaped cutting groove, a feed port and an adjustable element are arranged in the position of the L-shaped cutting groove, one end of the feed port is connected with the circuit board, the other end is connected with the adjustable element in series, and required low-frequency and high-frequency bands are obtained by switching of two values of the adjustable element; an outer side of the left lower side of the circuit board is provided with an L-shaped metal block whose inner side is matched with a corner of the circuit board and outer side is adjacent to a left corner of the all-metal frame; a short circuit point is arranged between the left side of the all-metal frame and the circuit board; the right side of the all-metal frame and the circuit board are connected through an adjusting element; and required high-frequency bandwidth is obtained by adjustment of the value of the adjusting element. The antenna has a large coverage area of working frequency bands and good working performance, is easy to realize, and is suitable for a mobile communication terminal.
Description
Technical field
The present invention relates to the adjustable antenna for mobile phone of a kind of multiband all-metal frame.
Background technology
Along with the development of mobile communication, the frequency range be applied on mobile phone also gets more and more, and this just requires that mobile phone will have good compatibility, can be operated in multiple frequency range simultaneously.This just has higher requirement to built-in antenna of mobile phone, should meet small form factor requirements, meets the requirement simultaneously working in multiple frequency range again.
Along with the extensive construction of 4G network and the development of LTE standard and maturation, intelligent mobile phone antenna not only will meet traditional 2G now, and the 3G universal gradually and 4G of high speed development, also requires that antenna for mobile phone covers more frequency range, as bluetooth, WLAN etc.Traditional narrow-band antenna is difficult to accomplish to realize wide-band while miniaturization, is difficult to the requirement meeting communication system, how designs the multiband aerial meeting each communication system requirements, has become the focus of current research.
Summary of the invention
For the defect that prior art exists, the object of this invention is to provide the adjustable antenna for mobile phone of a kind of multiband all-metal frame, the working frequency range of antenna covers all frequencies of GSM850, GSM900, DCS1800, PCS1900, UMTS, ISM/Bluetooth, WLAN, LTE2300/2500, service behaviour is good, be easy to realize, be applicable to mobile communication terminal.
For achieving the above object, the technical solution used in the present invention is as follows:
The adjustable antenna for mobile phone of a kind of multiband all-metal frame, comprises all-metal frame, circuit board, forms gap between described all-metal frame and circuit board, and electromagnetic wave is by this gap radiation; L shape grooving is had in described circuit board lower left, at L shape grooving, place comprises feed port and adjustable element, described feed port one termination circuit plate, and the other end is connected an adjustable element, by switching two values of adjustable element, the low frequency needed for acquisition and high-frequency band; Outside the lower left of described circuit board, have the metal derby of a L shape, agree with inside it with circuit board diagonal angle, outside is adjacent with all-metal frame left corner, and the frequency of two arm lengths on antenna of L shape metal derby has impact; A short dot is had between the left side of all-metal frame and circuit board; The right side of all-metal frame is connected by a regulating element with between circuit board; Required high frequency bandwidth is obtained by the size of adjustment regulating element value.
The present invention compared with prior art, has following apparent outstanding substantive distinguishing features and remarkable advantage:
Present invention employs all-metal border structure, and metal edge frame is as a part for antenna for mobile phone.Compared with conventional mobile phone antenna, greatly reduce antenna size, reduce the inner space that antenna takies mobile phone.Adopt slot antenna form, achieve frequency and bandwidth needed for existing communication standard well.The somewhere, right side of all-metal frame is connected by an element with between circuit board, can obtain good high frequency bandwidth by regulating element value.There is tie point circuit board and all-metal frame both sides, and making whole antenna form one can the slot antenna of regulating frequency.Connecting an adjustable element in antenna current feed port place, can obtain required low frequency and high-frequency band by two values of switching device.Required frequency can be realized easily by the position controlling short dot.
The present invention is applicable to the mobile phone adopting all-metal frame.Working frequency range covers all frequencies of GSM850 (824-894MHz), GSM900 (880-960MHz), DCS1800 (1710-1880MHz), PCS1900 (1880-1990MHz), UMTS (1920-2170MHz), ISM/Bluetooth (2400-2480MHz), WLAN (2400-2483MHz), LTE2300/2500, and service behaviour is good.This antenna structure is easy to realize, and is convenient to built-in integrated, is applicable to mobile communication terminal.
Accompanying drawing explanation
Fig. 1 is the adjustable antenna for mobile phone vertical view of multiband all-metal frame and end view.
Fig. 2 is antenna emulation S parameter.
Fig. 3 is antenna gain pattern (0.86GHz).
Fig. 4 is antenna gain pattern (1.8GHz).
Fig. 5 is antenna gain pattern (2.1GHz).
Fig. 6 is antenna gain pattern (2.4GHz).
Embodiment
Details are as follows by reference to the accompanying drawings for the preferred embodiments of the present invention:
See Fig. 1, the adjustable antenna for mobile phone of a kind of multiband all-metal frame, comprises all-metal frame 1, circuit board 8, forms gap between described all-metal frame 1 and circuit board 8, and electromagnetic wave is by this gap radiation; L shape grooving 6 is had in described circuit board 8 lower left, at L shape grooving 6, place comprises feed port 3 and adjustable element 4, described feed port 3 one termination circuit plate 8, and the other end is connected an adjustable element 4, by switching two values of adjustable element 4, the low frequency needed for acquisition and high-frequency band; Outside the lower left of described circuit board 8, have the metal derby 5 of a L shape, agree with circuit board 8 diagonal angle inside it, outside is adjacent with all-metal frame 1 left corner, and the frequency of two arm lengths on antenna of L shape metal derby has impact; A short dot 7 is had between the left side of all-metal frame 1 and circuit board 8; The right side of all-metal frame 1 is connected by a regulating element 2 with between circuit board 8; Required high frequency bandwidth is obtained by the size of adjustment regulating element 2 value.
The resonance frequency of size on antenna of all-metal frame 1 does not affect.And the thickness of circuit board 8 and material, and the resonance frequency impact of size on antenna is larger.
There is the metal derby 5 of a L shape at the lower left place of circuit board 8, agree with the diagonal angle of circuit board 8 inside it, outside is adjacent with all-metal frame 1 left corner, and L shape metal derby 5 pairs of all-metal frames 1 carry out couple feed, and the frequency of two arm lengths on antenna of L shape metal derby 5 has impact.
Connecting an adjustable element 4 in antenna current feed port 3 place, antenna can be made respectively to be switched to low frequency and high-frequency band by two values of this adjustment adjustable element 4.As shown in Figure 2, when adjustable element 4 gets smaller value, antenna low frequency bandwidth is very little and high frequency bandwidth is 1.4GHz-2.6GHz; When adjustable element 4 gets higher value, antenna high frequency bandwidth is deteriorated, and low frequency bandwidth is 0.75GHz-1.04GHz.
Fig. 3, Fig. 4, Fig. 5, Fig. 6 are antenna gain pattern, be 0.86GHz place maximum gain in frequency be 3.68dB, be 1.8GHz place maximum gain in frequency being 4.18dB, be 2.1GHz place maximum gain is 5.84dB in frequency, be 2.4GHz place maximum gain is 4.1dB in frequency.
The present embodiment antenna is 77.65% in the efficiency that frequency is 0.86GHz place, and the efficiency being 1.8GHz place in frequency is 94.25%, be 2.1GHz place efficiency is 96.77% in frequency.
This antenna for mobile phone is that 0.86GHz place is to human body specific absorption rate SAR≤0.45g/mW in frequency, at SAR≤0.99g/mW that frequency is 1.8 GHz places, at SAR≤0.74g/mW that frequency is 2.1GHz place, meet the mobile phone radiation standard 2g/mW in China and Europe and the 1.6g/mW of the U.S..
Claims (1)
1. the adjustable antenna for mobile phone of multiband all-metal frame, comprises all-metal frame (1), and circuit board (8), is characterized in that: form gap between described all-metal frame (1) and circuit board (8), and electromagnetic wave is by this gap radiation; L shape grooving (6) is had in described circuit board (8) lower left, feed port (3) and adjustable element (4) is comprised at L shape grooving (6) place, described feed port (3) termination circuit plate (8), the other end is connected an adjustable element (4), by switching two values of adjustable element (4), the low frequency needed for acquisition and high-frequency band; Outside the lower left of described circuit board (8), have the metal derby (5) of a L shape, agree with inside it with circuit board (8) diagonal angle, outside is adjacent with all-metal frame (1) left corner, and the frequency of two arm lengths on antenna of L shape metal derby has impact; A short dot (7) is had between the left side of all-metal frame (1) and circuit board (8); The right side of all-metal frame (1) is connected by a regulating element (2) with between circuit board (8); Required high frequency bandwidth is obtained by the size adjusting regulating element (2) value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159917.0A CN104852136B (en) | 2015-04-07 | 2015-04-07 | Multiband all-metal frame is adjustable antenna for mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159917.0A CN104852136B (en) | 2015-04-07 | 2015-04-07 | Multiband all-metal frame is adjustable antenna for mobile phone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104852136A true CN104852136A (en) | 2015-08-19 |
| CN104852136B CN104852136B (en) | 2017-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510159917.0A Expired - Fee Related CN104852136B (en) | 2015-04-07 | 2015-04-07 | Multiband all-metal frame is adjustable antenna for mobile phone |
Country Status (1)
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| CN (1) | CN104852136B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305028A (en) * | 2015-10-16 | 2016-02-03 | 深圳市万普拉斯科技有限公司 | Antenna structure of mobile terminal and mobile terminal |
| CN105375109A (en) * | 2015-11-24 | 2016-03-02 | 苏州纳安特通信科技有限公司 | Tunable antenna structure for completely closed metal-frame mobile phone |
| CN107611566A (en) * | 2017-06-30 | 2018-01-19 | 瑞声科技(新加坡)有限公司 | Antenna system and mobile terminal |
| CN108232406A (en) * | 2018-01-31 | 2018-06-29 | 广东欧珀移动通信有限公司 | Antenna module and electronic equipment |
| CN109119758A (en) * | 2018-08-24 | 2019-01-01 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
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| CN101529657A (en) * | 2006-11-02 | 2009-09-09 | 高通股份有限公司 | Adaptable antenna system |
| CN102983405A (en) * | 2011-09-06 | 2013-03-20 | 广达电脑股份有限公司 | Portable electronic device |
| CN203103509U (en) * | 2013-01-31 | 2013-07-31 | 广东欧珀移动通信有限公司 | Coupled feed-in antenna device of mobile terminal |
| US8766861B2 (en) * | 2011-12-05 | 2014-07-01 | Hon Hai Precision Industry Co., Ltd. | Electronic device with structure for enhancing antenna performance |
| CN203932323U (en) * | 2014-05-28 | 2014-11-05 | 瑞声精密制造科技(常州)有限公司 | Be applicable to have the antenna system of the mobile terminal of metal frame structure |
| CN104466392A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Antenna device, electronic equipment and method for setting antenna device |
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2015
- 2015-04-07 CN CN201510159917.0A patent/CN104852136B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101529657A (en) * | 2006-11-02 | 2009-09-09 | 高通股份有限公司 | Adaptable antenna system |
| CN102983405A (en) * | 2011-09-06 | 2013-03-20 | 广达电脑股份有限公司 | Portable electronic device |
| US8766861B2 (en) * | 2011-12-05 | 2014-07-01 | Hon Hai Precision Industry Co., Ltd. | Electronic device with structure for enhancing antenna performance |
| CN203103509U (en) * | 2013-01-31 | 2013-07-31 | 广东欧珀移动通信有限公司 | Coupled feed-in antenna device of mobile terminal |
| CN104466392A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Antenna device, electronic equipment and method for setting antenna device |
| CN203932323U (en) * | 2014-05-28 | 2014-11-05 | 瑞声精密制造科技(常州)有限公司 | Be applicable to have the antenna system of the mobile terminal of metal frame structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305028A (en) * | 2015-10-16 | 2016-02-03 | 深圳市万普拉斯科技有限公司 | Antenna structure of mobile terminal and mobile terminal |
| CN105375109A (en) * | 2015-11-24 | 2016-03-02 | 苏州纳安特通信科技有限公司 | Tunable antenna structure for completely closed metal-frame mobile phone |
| CN107611566A (en) * | 2017-06-30 | 2018-01-19 | 瑞声科技(新加坡)有限公司 | Antenna system and mobile terminal |
| CN108232406A (en) * | 2018-01-31 | 2018-06-29 | 广东欧珀移动通信有限公司 | Antenna module and electronic equipment |
| CN108232406B (en) * | 2018-01-31 | 2020-02-14 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
| CN109119758A (en) * | 2018-08-24 | 2019-01-01 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
| CN109119758B (en) * | 2018-08-24 | 2021-03-12 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104852136B (en) | 2017-12-05 |
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Granted publication date: 20171205 Termination date: 20200407 |