CN202695731U - Continuous-wave antenna and mobile terminal - Google Patents
Continuous-wave antenna and mobile terminal Download PDFInfo
- Publication number
- CN202695731U CN202695731U CN 201220242681 CN201220242681U CN202695731U CN 202695731 U CN202695731 U CN 202695731U CN 201220242681 CN201220242681 CN 201220242681 CN 201220242681 U CN201220242681 U CN 201220242681U CN 202695731 U CN202695731 U CN 202695731U
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- antenna
- transmitting
- continuous wave
- reception
- portable terminal
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Abstract
The utility model discloses a continuous-wave antenna and a mobile terminal, which are applied to wireless communication equipment. According to the utility model, a sending antenna and a receiving antenna are mutually independent so as to improve the isolating effect when information is received or sent, the overhead clearance region setting requirement is lowered, and the circuit board is more flexible in arrangement.
Description
Technical field
The utility model relates to field of wireless communication, relates in particular to a kind of continuous wave antenna and portable terminal.
Background technology
The continuous wave communication our present communication applications very extensively, the radio-circuit of the continuous wave mode of all using such as CDMA, WCDMA communication, the characteristics of sort circuit be transmitting-receiving simultaneously, do not have time slot between the upstream and downstream, transmitting-receiving frequency is different.
As shown in Figure 1, the corresponding antenna 2 that sends continuous wave, dual-mode antenna is made of one structure, be assemblied in mobile phone 1 lower end, antenna 2 needs to have preferably isolation between the transmitting-receiving frequency range, the power that so just can prevent transmitting antenna is coupled to receiving terminal, and the transmitting-receiving isolating problem is to adopt a passive duplexer filter to realize usually in circuit design, so the isolation index of duplexer has directly affected handset capability.
The manufacture difficulty of seeing the continuous wave antenna from the angle of antenna is relatively large, at first the antenna of continuous wave standard separates owing to transmitting-receiving frequency, and also to reserve certain frequency between the transmitting-receiving frequency and do isolation, so the frequency band of dual-mode antenna is wider, take CDMA Cell 800MHz as example, transmit frequency band 824MHz-849MHz, receive frequency 869MHz-893MHz intermediate isolating frequency band is 20MHz only.The efficient that realizes antenna needs enough empty regions, and the more and more frivolous trend of present mobile phone, compressed the height of antenna, and a plurality of frequency ranges that single antenna for mobile phone is supported, at antenna area devices such as USB, MIC (as shown in Figure 1 USB jack 3) is arranged again, so that the device of antenna headroom district and wiring fabric swatch is in contention space, antenna headroom district.To take the area of mainboard very large for chip layout in addition, can leave the limited space of antenna for, constantly can the generation antenna space and the awkward sight mutually fought for of chip layout space.
The utility model content
The main technical problems to be solved in the utility model is to provide a kind of continuous wave antenna and portable terminal, the isolation effect of its energy Effective Raise sending and receiving signal.
For solving the problems of the technologies described above, the utility model provides a kind of continuous wave antenna, comprises respectively independent transmitting antenna and the reception antenna that arranges.
During enforcement, setting is the polarised direction of different (inequalities) to described transmitting antenna with reception antenna.
During enforcement, the polarised direction of described transmitting antenna is perpendicular to the polarised direction of described reception antenna.
During enforcement, described reception antenna setting is vertical polarization directions, and described transmitting antenna setting is horizontal polarization directions.
A kind of portable terminal comprises as the aforementioned continuous wave antenna.
During enforcement, described transmitting antenna is arranged on the portable terminal bottom.
During enforcement, described reception antenna is arranged on the portable terminal sidepiece.
During enforcement, also be provided with duplexer filter, corresponding described transmitting antenna and the described reception antenna of connecting of described duplexer filter.
The beneficial effects of the utility model are: a kind of continuous wave antenna and portable terminal, the wherein separate setting of transmitting antenna and reception antenna, isolation effect between Effective Raise reception and transmission information has reduced empty regions requirement has been set, and circuit board layout is more flexible.
Further, transmitting antenna and reception antenna setting are the polarised direction of inequality, have more strengthened the aforementioned techniques effect.
Description of drawings
Fig. 1 is traditional CDMA mobile phone and the structural representation of antenna;
Fig. 2 is the structural representation of a kind of continuous wave antenna of the utility model and portable terminal embodiment.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail below by embodiment.
Please refer to Fig. 2, a kind of continuous wave antenna comprises respectively independent transmitting antenna 4 and the reception antenna 5 that arranges.Thereby reduce empty regions requirement is set.
During enforcement, transmitting antenna 4 can arrange the polarised direction that is different with reception antenna 5.Corresponding, can be that the form that transmitting antenna 4 and reception antenna 5 are the angle setting mutually realizes.Thereby realize that the isolation effect between reception and transmission information improves.
During enforcement, the polarised direction of transmitting antenna 4 can be perpendicular to the polarised direction of reception antenna 5.Corresponding, can be that transmitting antenna 4 and reception antenna 5 vertically disposed forms realize.
During enforcement, described reception antenna setting is vertical polarization directions, and described transmitting antenna setting is horizontal polarization directions.
A kind of portable terminal comprises as the aforementioned continuous wave antenna.
During enforcement, transmitting antenna 4 can be arranged on the portable terminal bottom.Be applied in as in the mobile phone, improve the SAR value of knowing clearly.
During enforcement, reception antenna 5 can be arranged on the portable terminal sidepiece.When having avoided being arranged on the bottom, be subjected to the hand-held antenna reception that affects.
During enforcement, also be provided with duplexer filter, corresponding described transmitting antenna 4 and the described reception antenna 5 of connecting of described duplexer filter.Further improve the isolation effect between receiving and transmitting signal.
This patent scheme proposes a kind of continuous wave antenna, and two parts that dual-mode antenna is divided into of this patent scheme have well solved the antenna predicament that present CDMA and WCDMA mobile phone face.Simultaneously, utilize mutually the polarization difference of transmitting antenna 4 and reception antenna 5 independently to increase transmitting-receiving isolation between the antenna, be conducive to the mobile phone radio frequency performance index.The more important thing is and solved mobile phone radiation and hand holding state to the impact of aerial signal.
Concrete, with reference to shown in 2, in the antenna part employing dual-mode antenna is changed into transmitting-receiving two miniature antennas separately by a large antenna.Take CDMA frequency range Cell 800MHz as example, when dual-mode antenna as one the time bandwidth of antenna be 70MHz.And the bandwidth that is designed to receive and dispatch two antennas separately only has 25MHz, and these two antennas are placed as shown in Figure 2: transmitting antenna 4 is placed on mobile phone 1 bottom, diminishes because bandwidth reduces the empty regions of bottom antenna.Only place the transmitting antenna 4 of a bandwidth relative narrower in the bottom, can well avoid the device (devices such as USB socket 3, mic, speaker) of mobile phone bottom on the impact of antenna performance; Simultaneously, outer transmitting antenna 4 is placed on mobile phone 1 bottom, conversation be hand-held transmitting terminal from the number of people relatively away from, be conducive to the index of SAR value.Reception antenna 5 is placed on the side of mobile phone 1, and vertical with transmitting antenna 4, the difference by antenna polarizes to increase the isolation between the antenna; Simultaneously, reception antenna 5 is positioned at mobile phone 1 top, is subjected to the hand-held less that affects.Corresponding circuit part, traditional circuit scheme are to put the problem that a duplexer filter solves the transmitting-receiving isolation at mobile phone circuit.And the utility model transmitting antenna 4 and reception antenna 5 separate, the polarised direction of transmitting antenna 4 and reception antenna 5 is different, the polarization mode of this inequality has played the good buffer action of transmitting-receiving frequency range, antenna for base station is 45 ° of polarization in addition, no matter the mobile phone polarization is horizontal polarization or perpendicular polarization, all is the same for the base station receives.
As shown in Figure 2, take the CDMA antenna of double frequency as example, reception antenna 5 is placed on mobile phone 1 side, adopt perpendicular polarization, polarised direction is perpendicular to the transmitting antenna 4 of bottom, increased like this isolation between reception antenna 5 and transmitting antenna 4 frequency ranges, increased about 24dB than isolation between antennas of transmit-receive sharing from isolation between isolation reception antenna 5 and the transmitting antenna 4, although this isolation also is not enough to remove duplexer filter (isolation of duplexer filter is generally in the 50dB effect) at circuit, but the isolation of this mobile phone after use receiving emission filter has just had very large fault-tolerant, and therefore the mobile phone radio frequency index has larger surplus when the single double-tone index of test.In the test process, by the resonance spectrum of reception antenna in the combining continuous wave antenna, make this antenna of realization from antenna and do not have what technical bottleneck.In addition, transmitting antenna 4 is placed on the bottom of mobile phone 1, volume is compared transmitting-receiving antenna less together, therefore is convenient to avoid mic, speaker, 3 interference to antenna for mobile phone in the headroom district such as device such as grade of usb socket, transmitting antenna 4 is conducive to passing through of SAR value test in the bottom of hand simultaneously.
The utlity model has following advantage: 1, dual-mode antenna independently arranges, and has reduced empty regions requirement is set, and need not too much to consider antenna during fabric swatch; 2, be beneficial to improvement transmitting-receiving isolation index, change the existing drawback that index relies on the duplexer filter performance fully of isolating; 3, improved and be subjected to hand-held to affect antenna reception when antenna for mobile phone places the mobile phone lower end, cause and receive signal and descend the problem that antenna for mobile phone places mobile phone top radiation SAR value again the human influence to be exceeded standard.
In the test process of scheme, by the OTA index to the utility model and existing antenna measurement, compare basically identical from index transmitting antenna TRP performance with transmitting-receiving antenna together.It is more better than independent reception antenna outline to receive the TIS index.And in the use procedure of reality, staff has clear improvement on the impact of TIS, has improved user's experience.Therefore on the whole, the utility model Antenna Design scheme still has very large advantage in the situation of handset structure side space permission.
Above content is in conjunction with concrete execution mode further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (8)
1. a continuous wave antenna is characterized in that, comprises respectively independent transmitting antenna (4) and the reception antenna (5) that arranges.
2. continuous wave antenna as claimed in claim 1 is characterized in that, the settings of described transmitting antenna (4) and reception antenna (5) are the polarised direction of inequality.
3. continuous wave antenna as claimed in claim 2 is characterized in that, the polarised direction of described transmitting antenna (4) is perpendicular to the polarised direction of described reception antenna (5).
4. continuous wave antenna as claimed in claim 3 is characterized in that, described reception antenna (5) setting is vertical polarization directions, and described transmitting antenna (4) setting is horizontal polarization directions.
5. a portable terminal is characterized in that, comprises such as each described continuous wave antenna of claim 1 to 4.
6. portable terminal as claimed in claim 5 is characterized in that, described transmitting antenna (4) is arranged on the portable terminal bottom.
7. portable terminal as claimed in claim 5 is characterized in that, described reception antenna (5) is arranged on the portable terminal sidepiece.
8. such as claim 5,6 or 7 described portable terminals, it is characterized in that, also be provided with duplexer filter, corresponding described transmitting antenna (4) and the described reception antenna (5) of connecting of described duplexer filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242681 CN202695731U (en) | 2012-05-28 | 2012-05-28 | Continuous-wave antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242681 CN202695731U (en) | 2012-05-28 | 2012-05-28 | Continuous-wave antenna and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695731U true CN202695731U (en) | 2013-01-23 |
Family
ID=47551296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220242681 Expired - Lifetime CN202695731U (en) | 2012-05-28 | 2012-05-28 | Continuous-wave antenna and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695731U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009364A (en) * | 2013-02-27 | 2015-10-28 | 微软公司 | Dual band antenna pair with high isolation |
| CN106231517A (en) * | 2016-09-28 | 2016-12-14 | 北京小米移动软件有限公司 | Terminal unit |
-
2012
- 2012-05-28 CN CN 201220242681 patent/CN202695731U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009364A (en) * | 2013-02-27 | 2015-10-28 | 微软公司 | Dual band antenna pair with high isolation |
| CN106231517A (en) * | 2016-09-28 | 2016-12-14 | 北京小米移动软件有限公司 | Terminal unit |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |