CN104579237A - High-power and efficient radio frequency-direct current converter - Google Patents
High-power and efficient radio frequency-direct current converter Download PDFInfo
- Publication number
- CN104579237A CN104579237A CN201310505062.3A CN201310505062A CN104579237A CN 104579237 A CN104579237 A CN 104579237A CN 201310505062 A CN201310505062 A CN 201310505062A CN 104579237 A CN104579237 A CN 104579237A
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- transistor
- power
- direct current
- radio frequency
- drain electrode
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- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- Y02B60/50—
Landscapes
- Transmitters (AREA)
- Amplifiers (AREA)
- Transceivers (AREA)
Abstract
The invention discloses a high-power and efficient radio frequency-direct current converter, and relates to the technical field of radio frequency communication and broadcast transmission. The invention comprises a directional coupler, a transistor and a choking coil, wherein the radio-frequency power input at the input end is divided into two paths after passing through the directional coupler; one path is connected to a drain electrode of the transistor, and the other path is connected to a grid electrode of the transistor; a source electrode of the transistor is grounded; the drain electrode of the transistor is further connected to the output end through a choking tube; one path of the output end is grounded through a capacitor, and the other path of the output end outputs direct current power. The high-power and efficient radio frequency-direct current converter can be used for establishing a power recycling system in a high-power transmitter, and has the characteristics of large power capacity, high efficiency and wide working frequency band.
Description
Technical field
The present invention relates to radio communication, technical field of broadcast transmission, particularly large power high efficiency radio frequency-direct current transducer.
Background technology
In radio communication, broadcast transmission system, much useless radio-frequency power is had to dissipate with the form of heat, the absorbing load of such as synthesizer, the absorbing load etc. of LINC transmitter.If these radio-frequency powers can be recycled again, then can reduce energy ezpenditure and the heat dissipation of transmitter greatly, there is great economic benefit.In radio-frequency power recovery system, the parts of core are radio frequency-direct current transducers the most.
Referring to Fig. 1, radio frequency-direct current transducer of the prior art is all the realization based on diode component.Such radio frequency-direct current transducer reclaims in a lot of small-power, be widely applied in wireless power gathering-device.But when being applied to powerful Power Recovery device, there is insoluble difficulty in it:
1) inefficiency.Because the existence of diode component saturation voltage drop, on the diode, overall radio frequency-direct current conversion efficiency is difficult to more than 50% a large amount of power consumptions.
2) power capacity is limited.Hold quantitative limitation by diode power, very difficult realization is more than the radio frequency-direct current transducer of 10W.
Working band is narrow.The upper cut-off frequency of diode and power capacity are two factors conditioned each other, and cannot take into account simultaneously.
Summary of the invention
For above-mentioned deficiency of the prior art, the object of this invention is to provide a kind of large power high efficiency radio frequency-direct current transducer.It is used in high-power transmitter and builds Power Recovery System, has the advantages that power capacity is large, efficiency is high, working band is wide.
In order to reach foregoing invention object, technical scheme of the present invention realizes as follows:
A kind of large power high efficiency radio frequency-direct current transducer, its design feature is, it comprises directional coupler, transistor and choke.The radio-frequency power of input input is divided into two-way after directional coupler, and a road is connected to the drain electrode of transistor, and another road is connected to the grid of transistor, the source ground of transistor.The drain electrode of transistor is also connected to output through chokes pipe, and a road of output is through capacity earth, and another road exports direct current power.
In above-mentioned radio frequency-direct current transducer, connect drain electrode matching network between described directional coupler and the drain electrode of transistor, between directional coupler and the grid of transistor, connect Gate matching network.
In above-mentioned radio frequency-direct current transducer, described transistor adopts Laterally Diffused Metal Oxide Semiconductor LDMOS or GaN high electron mobility high-capacity transistor GaN HEMT.
The present invention, owing to have employed said structure, realizes synchronous rectification with transistor, and power capacity is large, working band is wide.The present invention can be used in the high-power emission systems such as broadcast, communication, realizes radio-frequency power and reclaims, and reduces power consumption and the heat dissipation of complete machine, meets the requirement of energy-saving and environment friendly.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of radio frequency-direct current transducer in prior art;
Fig. 2 is structural representation of the present invention.
Embodiment
Referring to Fig. 2, the present invention includes directional coupler 1, transistor 4 and choke 5.The radio-frequency power of input input is divided into two-way after directional coupler 1, and a road is connected to the drain electrode of transistor 4 through drain electrode matching network (2), and another road is connected to the grid of transistor 4 through Gate matching network (3), the source ground of transistor 4.The drain electrode of transistor 4 is also connected to output through chokes pipe 5, and a road of output is through electric capacity 6 ground connection, and another road exports direct current power.Transistor 4 adopts Laterally Diffused Metal Oxide Semiconductor LDMOS or GaN high electron mobility high-capacity transistor GaN HEMT.
When the present invention works, the radio-frequency power of input is divided into two-way through directional coupler 1, the drain electrode of a road feed-in transistor 4, the grid of another road feed-in transistor 4.This structure of the present invention can make radio-frequency input signals itself as control signal, realizes the synchro switch of transistor 4 self, synchronous rectification.The direct current power that rectification obtains can be taken out after the choke 5 through being connected to transistor 4 drain electrode.
Use radio frequency-direct current transducer of the present invention, can realize the UHF waveband radio frequency-direct current power recovery system of 1KW, the efficiency of whole system is higher than 70%.
Claims (3)
1. large power high efficiency radio frequency-direct current transducer, it is characterized in that, it comprises directional coupler (1), transistor (4) and choke (5), the radio-frequency power of input input is divided into two-way after directional coupler (1), one road is connected to the drain electrode of transistor (4), another road is connected to the grid of transistor (4), the source ground of transistor (4); The drain electrode of transistor (4) is also connected to output through chokes pipe (5), and a road of output is through electric capacity (6) ground connection, and another road exports direct current power.
2. large power high efficiency radio frequency-direct current transducer according to claim 1, it is characterized in that, connect drain electrode matching network (2) between the drain electrode of described directional coupler (1) and transistor (4), between the grid of directional coupler (1) and transistor (4), connect Gate matching network (3).
3. according to claim 1 or described large power high efficiency radio frequency-direct current transducer, it is characterized in that, described transistor (4) adopts Laterally Diffused Metal Oxide Semiconductor LDMOS or GaN high electron mobility high-capacity transistor GaN HEMT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505062.3A CN104579237A (en) | 2013-10-24 | 2013-10-24 | High-power and efficient radio frequency-direct current converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505062.3A CN104579237A (en) | 2013-10-24 | 2013-10-24 | High-power and efficient radio frequency-direct current converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104579237A true CN104579237A (en) | 2015-04-29 |
Family
ID=53094592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310505062.3A Pending CN104579237A (en) | 2013-10-24 | 2013-10-24 | High-power and efficient radio frequency-direct current converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104579237A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551486A (en) * | 2003-05-19 | 2004-12-01 | 三星电子株式会社 | Integratable Voltage-Controlled RF Power Amplifier |
| US20050156656A1 (en) * | 2004-01-15 | 2005-07-21 | Rotzoll Robert R. | Non-quasistatic rectifier circuit |
| US8326256B1 (en) * | 2008-07-15 | 2012-12-04 | Impinj, Inc. | RFID tag with MOS bipolar hybrid rectifier |
| CN102938636A (en) * | 2012-09-07 | 2013-02-20 | 清华大学 | Mixer |
| CN203590175U (en) * | 2013-10-24 | 2014-05-07 | 北京同方吉兆科技有限公司 | A large-power high-efficiency radiofrequency-DC converter |
-
2013
- 2013-10-24 CN CN201310505062.3A patent/CN104579237A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551486A (en) * | 2003-05-19 | 2004-12-01 | 三星电子株式会社 | Integratable Voltage-Controlled RF Power Amplifier |
| US20050156656A1 (en) * | 2004-01-15 | 2005-07-21 | Rotzoll Robert R. | Non-quasistatic rectifier circuit |
| US8326256B1 (en) * | 2008-07-15 | 2012-12-04 | Impinj, Inc. | RFID tag with MOS bipolar hybrid rectifier |
| CN102938636A (en) * | 2012-09-07 | 2013-02-20 | 清华大学 | Mixer |
| CN203590175U (en) * | 2013-10-24 | 2014-05-07 | 北京同方吉兆科技有限公司 | A large-power high-efficiency radiofrequency-DC converter |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150429 |