CN203675055U - Power amplifier and data transfer radio - Google Patents
Power amplifier and data transfer radio Download PDFInfo
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- CN203675055U CN203675055U CN201420011813.6U CN201420011813U CN203675055U CN 203675055 U CN203675055 U CN 203675055U CN 201420011813 U CN201420011813 U CN 201420011813U CN 203675055 U CN203675055 U CN 203675055U
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- amplifier
- power
- power amplifier
- electric bridge
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- 238000012546 transfer Methods 0.000 title abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 230000006854 communication Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a power amplifier and a data transfer radio. The power amplifier comprises a 90-degrree 3-dB bridge coupler, a carrier amplifier input impedance matching circuit, a carrier amplifier, a carrier amplifier output impedance matching circuit, a peak amplifier input impedance matching circuit, a peak amplifier, a peak amplifier output impedance matching circuit and a Doherty synthesis bridge. According to the power amplifier and the data transfer radio, the emission efficiency of the data transfer radio is improved, and the reliability of the data transfer radio is improved.
Description
Technical field
The utility model relates to the communications field, relates in particular to a kind of power amplifier and data radio station.
Background technology
Along with the development of wireless digital broadcasting station technology, remote control telemetering system universal, in high power station the application of radio-frequency power amplifier more and more important, high reliability and high efficiency become important indicator.Radio station is for a long time in unattended operating state, and its operational environment is very complicated, and many equipment is all placed in field, and difference variation, power supply situation are all unstable.Therefore, data radio station is from product structure to technical indicator and high more a lot of than conventional communication product to the requirement of environmental index.
Data radio station is subject to transmission power limit, and transmission range maximum only has tens of kilometers, and distance is larger, and transmitting power is larger, and power is also larger; This characteristic has determined that the application of data radio station can only be limited in certain regional extent.In order to adapt to this zonal variation, high power station generally has two kinds of mode of operations, and one is high-power mode 35W, and one is low-power mode 5W.Stable in order to realize, reliable, simple data transfer mode, radio station often adopts FSK(Frequency-Shift Keying, frequency shift keying) modulation system, advantage is: implement and be easier to, antinoise and antifading better performances.Under high-power mode, power amplifier has entered saturation condition; And under low-power mode, prior art generally adopts the power stage mode of the integrated form power amplifier module of Mitsubishi or ST, power amplifier is in running order all the time, is operated under low-power mode state inefficiency because large radio station may have a large amount of time periods; Meanwhile, radio-frequency power amplifier, as the main power consumption module in high power station, will consume huge energy in the communication process of discontinuous pulses.The efficiency of raising power amplifier not monoenergetic enough makes communication equipment miniaturization, also can energy savings.
In moving communicating field, mostly adopt micro strip line type Doherty power amplifier as shown in Figure 1, comprise power splitter 1, 50 ohm of 90 degree microstrip line 2, carrier amplifier input impedance matching circuit 3, peak amplifier input impedance matching circuit 4, carrier amplifier 5, peak amplifier 6, carrier amplifier output impedance match circuit 7, spike amplifier output impedance match circuit 8, 50 ohm of 90 degree microstrip line 9, 35 ohm of 90 degree microstrip line 10, wherein, one end of power splitter 1, carrier amplifier input impedance matching circuit 3, carrier amplifier 5, carrier amplifier output impedance match circuit 7, 50 ohm of 90 degree microstrip line 9, one end of 35 ohm of 90 degree microstrip line 10 is electrically connected successively, form main power amplifier, the other end, 50 ohm of 90 degree microstrip line 2, peak amplifier input impedance matching circuit 4, peak amplifier 6,8,35 ohm of 90 other end of spending microstrip line 10 of spike amplifier output impedance match circuit of power splitter 1 are electrically connected successively, form auxiliary power amplifier, be generally high pressure 28V power supply, and the mobile storage battery power supply of generally adopt+9V of high-power data radio station～+ 16V, the operating voltage of the power amplifier using far below moving communicating field, micro strip line type Doherty power amplifier also has in addition volume problem, so can not directly use on high power station.
Utility model content
The purpose of this utility model is, a kind of power amplifier and data radio station are provided, to improve the efficiency of power amplifier in existing radio station.
The utility model discloses a kind of power amplifier, above-mentioned amplifier comprises 90 degree 3dB electric bridge couplers, carrier amplifier is inputted anti-match circuit, carrier amplifier, carrier amplifier output impedance match circuit, peak amplifier input impedance matching circuit, peak amplifier, peak amplifier output impedance match circuit and Doherty synthesize electric bridge, one end of above-mentioned 90 degree 3dB electric bridge couplers, carrier amplifier input impedance matching circuit, carrier amplifier, one end of the synthetic electric bridge of carrier amplifier output impedance match circuit and Doherty is electrically connected successively, the other end of the synthetic electric bridge of the other end, peak amplifier input impedance matching circuit, peak amplifier, peak amplifier output impedance match circuit and Doherty of above-mentioned 90 degree 3dB electric bridge couplers is electrically connected successively.
The utility model further discloses a kind of data radio station, and the transmitting terminal in above-mentioned radio station comprises above-mentioned power amplifier.
The utility model makes high-power data radio station under high-power mode, and transmit power capacity gets a promotion, and meets the demand of distance transmission, and antijamming capability is strong, and reliability is high; Under low-power mode, when transmitting, can meet low-power consumption simultaneously, reach the target of power saving, thereby improved the heat dispersion in radio station.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a part of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is micro strip line type Doherty power amplifier schematic diagram;
Fig. 2 is the schematic diagram of power amplifier described in the utility model.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, be the schematic diagram of power amplifier described in the utility model; In figure, 1 be 90 degree 3dB electric bridge couplers, 2 for carrier amplifier input anti-match circuit, 3 for carrier amplifier, 4 for carrier amplifier output impedance match circuit, 5 for peak amplifier input impedance matching circuit, 6 for peak amplifier, 7 for peak amplifier output impedance match circuit, 8 for Doherty synthesize electric bridge, wherein
One end of the synthetic electric bridge 8 of one end, carrier amplifier input impedance matching circuit 2, carrier amplifier 3, carrier amplifier output impedance match circuit 4 and Doherty of 90 degree 3dB electric bridge couplers 1 is electrically connected successively, forms main power amplifier branch road;
The other end of the synthetic electric bridge 8 of the other end, peak amplifier input impedance matching circuit 5, peak amplifier 6, peak amplifier output impedance match circuit 7 and Doherty of 90 degree 3dB electric bridge couplers 1 is electrically connected successively, forms auxiliary power amplifier branch road.
The workflow of power amplifier is as follows: radiofrequency signal enters 90 degree 3dB electric bridge couplers 1, be broken down into 2 road signals, one tunnel is through carrier amplifier input impedance matching circuit 2 incoming carrier amplifiers 3, after amplification through carrier amplifier output impedance match circuit 4, be converted to 50 ohm of equiva lent impedances, enter the synthetic electric bridge 8 of Doherty; Another road enters peak amplifier 6 through peak amplifier input impedance matching circuit 5, after amplification, through peak amplifier output impedance match circuit 7, is converted to 50 ohm of equiva lent impedances, enters the synthetic electric bridge 8 of Doherty; 2 road signals synthesize a road output through the synthetic electric bridge 8 of Doherty;
The utility model also discloses a kind of data radio station, and its transmitting terminal comprises power amplifier as shown in Figure 1.The data radio station that adopts the power amplifier shown in Fig. 1, under high power mode, the phenomenon of power amplifier surplus deficiency is enhanced greatly, has realized efficiency operation; Under low-power mode, owing to adopting Doherty circuit, will only have a road power amplifier in running order, realize the low-power consumption in radio station.
Above-mentioned explanation illustrates and has described preferred embodiment of the present utility model, but as previously mentioned, be to be understood that the utility model is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in utility model contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from spirit and scope of the present utility model, all should be in the protection range of the utility model claims.
Claims (2)
1. a power amplifier, it is characterized in that, described amplifier comprises that 90 degree 3dB electric bridge couplers, carrier amplifier input the synthetic electric bridge of anti-match circuit, carrier amplifier, carrier amplifier output impedance match circuit, peak amplifier input impedance matching circuit, peak amplifier, peak amplifier output impedance match circuit and Doherty, and one end of the synthetic electric bridge of one end, carrier amplifier input impedance matching circuit, carrier amplifier, carrier amplifier output impedance match circuit and Doherty of described 90 degree 3dB electric bridge couplers are electrically connected successively; The other end of the synthetic electric bridge of the other end, peak amplifier input impedance matching circuit, peak amplifier, peak amplifier output impedance match circuit and Doherty of described 90 degree 3dB electric bridge couplers is electrically connected successively.
2. a data radio station, is characterized in that, the transmitting terminal in described radio station comprises power amplifier claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011813.6U CN203675055U (en) | 2014-01-08 | 2014-01-08 | Power amplifier and data transfer radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011813.6U CN203675055U (en) | 2014-01-08 | 2014-01-08 | Power amplifier and data transfer radio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203675055U true CN203675055U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011813.6U Expired - Fee Related CN203675055U (en) | 2014-01-08 | 2014-01-08 | Power amplifier and data transfer radio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203675055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067768A (en) * | 2016-08-12 | 2016-11-02 | 成都泰格微电子研究所有限责任公司 | Mesh power amplifier in broadband |
-
2014
- 2014-01-08 CN CN201420011813.6U patent/CN203675055U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067768A (en) * | 2016-08-12 | 2016-11-02 | 成都泰格微电子研究所有限责任公司 | Mesh power amplifier in broadband |
| CN106067768B (en) * | 2016-08-12 | 2023-03-07 | 成都泰格微电子研究所有限责任公司 | Broadband internal matching power amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |