CN107786239A - It is a kind of to reduce the spuious system of communication terminal High-order Harmonic Generation - Google Patents
It is a kind of to reduce the spuious system of communication terminal High-order Harmonic Generation Download PDFInfo
- Publication number
- CN107786239A CN107786239A CN201711132937.4A CN201711132937A CN107786239A CN 107786239 A CN107786239 A CN 107786239A CN 201711132937 A CN201711132937 A CN 201711132937A CN 107786239 A CN107786239 A CN 107786239A
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- CN
- China
- Prior art keywords
- spuious
- match circuit
- communication terminal
- order harmonic
- harmonic generation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Noise Elimination (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to communication terminal technical field, more particularly to a kind of reduce the spuious system of communication terminal High-order Harmonic Generation, it is spuious to reduce communication terminal High-order Harmonic Generation by setting the first match circuit to be connected with the second match circuit by wave filter or 0 Ohmic resistance, if higher hamonic wave stray radiation is without departing from corresponding standard in system, wave filter can be saved so that the first match circuit is connected by 0 Ohmic resistance with the second match circuit；If higher hamonic wave stray radiation exceeds corresponding standard in system, the first match circuit is connected by wave filter with the second match circuit so that higher hamonic wave is inhibited, so as to improve the performance of communication terminal.
Description
Technical field
The present invention relates to communication terminal technical field, more particularly to a kind of reduction communication terminal higher hamonic wave spoke
Penetrate spuious system.
Background technology
With the development of society, performance requirement more and more higher of the people to communication terminal, and focus more on mobile logical
Interrogate the stray radiation index of terminal.Because mobile communication terminal device often has a high power amplifier part, and power amplifier
Often power output is higher, and nonlinear effect is more obvious, thus can produce higher hamonic wave, influences the transmitting of communication terminal
And receptivity.
The structure of block diagram of existing communication terminal emission system as shown in figure 1, including transceiver, power amplifier,
Match circuit, antenna.By that in Fig. 1, can be evident that, the useful information that transceiver is sent, amplify through power amplifier
Afterwards, because the nonlinear effect of power amplifier produces higher hamonic wave 100 (using shown in buckling curve in figure).Caused high order
Harmonic wave is often gone out along transmitting circuit (match circuit of the first match circuit-connector-second) through aerial radiation.Tradition
The first match circuit and the second match circuit be difficult often the effect for taking into account impedance matching and LPF (filtering out higher hamonic wave)
Fruit.If caused higher hamonic wave power is larger, often make spuious exceeded, influence the performance of mobile communication terminal device；This
It is that those skilled in the art do not expect to see.
The content of the invention
For above-mentioned problem, the invention discloses a kind of reduction communication terminal High-order Harmonic Generation is spuious
System, including transceiver, power amplifier, the first match circuit, wave filter, 0 Ohmic resistance and the second match circuit；
The transceiver is connected by the power amplifier with first match circuit；
First match circuit is connected by wave filter or 0 Ohmic resistance with second match circuit.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system also includes detection
Device；
The detector is arranged between second match circuit and the antenna, for detecting in the system
High-order Harmonic Generation is spuious.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, if the detection
High-order Harmonic Generation that device detects is spuious to be higher than preset value, then first match circuit passes through described in wave filter connection
Second match circuit；It is less than the preset value if High-order Harmonic Generation that the detector detects is spuious, described first
Second match circuit is connected by 0 Ohmic resistance with circuit.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, described first
The wave filter or 0 Ohmic resistance are connected by either-or switch with circuit.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, the system is also
Including connector；
First match circuit connects the either-or switch by the connector.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, the transceiver
Including low noise amplifier and voltage controlled oscillator.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, the system is also
Including antenna；
The antenna is connected with second match circuit.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, the movement is led to
It is mobile phone or tablet personal computer to interrogate terminal.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, the wave filter
For low pass filter.
Above-mentioned reduces the spuious system of communication terminal High-order Harmonic Generation, wherein, the system, the power is put
Big device is radio-frequency power amplifier.
Foregoing invention has the following advantages that or beneficial effect：
The spuious system of communication terminal High-order Harmonic Generation is reduced the invention discloses a kind of, by setting first
It is connected with circuit with the second match circuit by wave filter or 0 Ohmic resistance miscellaneous to reduce communication terminal High-order Harmonic Generation
Dissipate, if higher hamonic wave stray radiation is without departing from corresponding standard in system, wave filter can be saved so that the first match circuit leads to
0 Ohmic resistance is crossed to be connected with the second match circuit；If higher hamonic wave stray radiation exceeds corresponding standard in system, cause
First match circuit is connected by wave filter with the second match circuit so that higher hamonic wave is inhibited, so as to improve mobile lead to
Interrogate the performance of terminal.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, the present invention and its feature, outside
Shape and advantage will become more apparent.The identical mark instruction identical part in whole accompanying drawings.Not can according to than
Example draws accompanying drawing, it is preferred that emphasis is shows the purport of the present invention.
Fig. 1 is the structural representation of communication terminal emission system in background of invention；
Fig. 2 is the structural representation that the spuious system of communication terminal High-order Harmonic Generation is reduced in the embodiment of the present invention
Figure.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not as the limit of the present invention
It is fixed.
As shown in Fig. 2 the present embodiment is related to a kind of spuious system of reduction communication terminal High-order Harmonic Generation, specifically
, transceiver that the system includes being sequentially connected, power amplifier, the first match circuit, connector, either-or switch is (in figure
Be not shown), the second match circuit and antenna (i.e. transceiver is connected by power amplifier with one end of the first match circuit,
The other end of one match circuit and one end of connector are connected, and the other end of the connector is matched by either-or switch with second
One end connection of circuit, the other end of the second match circuit are connected with antenna)；The system also includes the Ohmic resistance of wave filter 2 and 0
3, wherein, above-mentioned connector is connected by either-or switch with the Ohmic resistance 3 of wave filter 2 or 0, i.e., within the system, can basis
The either-or switch is set and is connected with wave filter 2 or is connected with 0 Ohmic resistance 3 by process requirements, i.e., in connector and second
With only series connection accesses one of them in the Ohmic resistance 3 of wave filter 2 and 0 between circuit.
In the present system, the useful information that transceiver is sent, it is non-due to power amplifier after power amplifier amplifies
Linear effect produces higher hamonic wave 1 (using shown in buckling curve in figure).Caused higher hamonic wave 1 is often along transmitting circuit
(match circuit of the first match circuit-connector-second) goes out through aerial radiation, can root due in the system of the present invention
Choose whether that series connection access wave filter is humorous to suppress high order between connector and the second match circuit according to the size of higher hamonic wave
Ripple, therefore the performance of communication terminal can be improved.
In a preferred embodiment of the invention, said system also includes detector；The detector is arranged at second
It is spuious for the High-order Harmonic Generation in detecting system between circuit and antenna.
On this basis, further, if the High-order Harmonic Generation that detects of detector is spuious to be higher than preset value, first
Match circuit connects the second match circuit by wave filter 2, that is, sets either-or switch to be connected with wave filter 2, with 0 Ohmic resistance
3 disconnect；If High-order Harmonic Generation that detector detects is spuious to be less than preset value, the first match circuit passes through 0 Ohmic resistance 3
The second match circuit is connected, that is, sets either-or switch to be disconnected with wave filter 2, is connected with 0 Ohmic resistance 3；Preferably, this is default
Value can be set by those skilled in the art according to process requirements.
In a preferred embodiment of the invention, above-mentioned transceiver includes low noise amplifier and VCO
Device.
In a preferred embodiment of the invention, above-mentioned communication terminal is mobile phone or tablet personal computer etc..
In a preferred embodiment of the invention, above-mentioned wave filter 2 is low pass filter 2.
In a preferred embodiment of the invention, above-mentioned power amplifier is radio-frequency power amplifier.
To sum up, the present embodiment has done compatible design on the basis of existing communication terminal system：In connector and
Wave filter 2 is with the addition of between second match circuit, meanwhile, for the circuit design before preferably compatible, therebetween together
Sample has been connected 0 ohm circuit；But 0 ohm circuit and wave filter 2 can not exist simultaneously：Then it is existing when only existing 0 ohm circuit
Some communication terminal system block diagram structures；Remove 0 ohm circuit, add wave filter 2, then can realize suppression higher hamonic wave
Function.The communication terminal system advantage is：When system architecture only contains 0 ohm, if higher hamonic wave stray radiation is not
Wave filter 2 can be then saved beyond corresponding standard；If higher hamonic wave is exceeded, addition wave filter 2 can then obtain higher hamonic wave
To suppression, further to lift the performance of communication terminal.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and above-described embodiment can be with
Change case is realized, will not be described here.Such change case has no effect on the substantive content of the present invention, will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply；Any those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this has no effect on the substantive content of the present invention.Therefore, every content without departing from technical solution of the present invention, foundation
The technical spirit of the present invention still falls within the present invention to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of technical scheme protection.
Claims (10)
1. a kind of reduce the spuious system of communication terminal High-order Harmonic Generation, it is characterised in that is put including transceiver, power
Big device, the first match circuit, wave filter, 0 Ohmic resistance and the second match circuit；
The transceiver is connected by the power amplifier with first match circuit；
First match circuit is connected by the wave filter or 0 Ohmic resistance with second match circuit.
2. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that described
System also includes detector；
The detector is arranged between second match circuit and the antenna, for detecting the high order in the system
Harmonic radiation is spuious.
3. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 2, it is characterised in that if institute
State that High-order Harmonic Generation that detector detects is spuious to be higher than preset value, then first match circuit is connected by the wave filter
Connect second match circuit；It is less than the preset value if High-order Harmonic Generation that the detector detects is spuious, it is described
First match circuit connects second match circuit by 0 Ohmic resistance.
4. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that described
First match circuit connects the wave filter or 0 Ohmic resistance by either-or switch.
5. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 4, it is characterised in that described
System also includes connector；
First match circuit connects the either-or switch by the connector.
6. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that described
Transceiver includes low noise amplifier and voltage controlled oscillator.
7. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that described
System also includes antenna；
The antenna is connected with second match circuit.
8. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that described
Communication terminal is mobile phone or tablet personal computer.
9. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that described
Wave filter is low pass filter.
10. the spuious system of communication terminal High-order Harmonic Generation is reduced as claimed in claim 1, it is characterised in that institute
It is radio-frequency power amplifier to state power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132937.4A CN107786239A (en) | 2017-11-15 | 2017-11-15 | It is a kind of to reduce the spuious system of communication terminal High-order Harmonic Generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132937.4A CN107786239A (en) | 2017-11-15 | 2017-11-15 | It is a kind of to reduce the spuious system of communication terminal High-order Harmonic Generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107786239A true CN107786239A (en) | 2018-03-09 |
Family
ID=61433171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711132937.4A Pending CN107786239A (en) | 2017-11-15 | 2017-11-15 | It is a kind of to reduce the spuious system of communication terminal High-order Harmonic Generation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631061A (en) * | 2018-04-27 | 2018-10-09 | Oppo广东移动通信有限公司 | Antenna module and electronic device |
| CN109379662A (en) * | 2018-12-21 | 2019-02-22 | 惠州Tcl移动通信有限公司 | A kind of earphone interface and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703847A (en) * | 2016-03-07 | 2016-06-22 | 广东欧珀移动通信有限公司 | Printed circuit board and electronic terminal |
| CN105915262A (en) * | 2016-06-30 | 2016-08-31 | 宇龙计算机通信科技(深圳)有限公司 | Radio frequency transmitting circuit and mobile terminal |
| CN206559349U (en) * | 2017-01-26 | 2017-10-13 | 维沃移动通信有限公司 | A kind of WIFI radio circuits and mobile terminal |
-
2017
- 2017-11-15 CN CN201711132937.4A patent/CN107786239A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703847A (en) * | 2016-03-07 | 2016-06-22 | 广东欧珀移动通信有限公司 | Printed circuit board and electronic terminal |
| CN105915262A (en) * | 2016-06-30 | 2016-08-31 | 宇龙计算机通信科技(深圳)有限公司 | Radio frequency transmitting circuit and mobile terminal |
| CN206559349U (en) * | 2017-01-26 | 2017-10-13 | 维沃移动通信有限公司 | A kind of WIFI radio circuits and mobile terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631061A (en) * | 2018-04-27 | 2018-10-09 | Oppo广东移动通信有限公司 | Antenna module and electronic device |
| CN108631061B (en) * | 2018-04-27 | 2019-05-28 | Oppo广东移动通信有限公司 | Antenna module and electronic device |
| CN109379662A (en) * | 2018-12-21 | 2019-02-22 | 惠州Tcl移动通信有限公司 | A kind of earphone interface and electronic equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |