CN209170316U - A kind of radio-frequency power amplifier - Google Patents
A kind of radio-frequency power amplifier Download PDFInfo
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- CN209170316U CN209170316U CN201821657407.1U CN201821657407U CN209170316U CN 209170316 U CN209170316 U CN 209170316U CN 201821657407 U CN201821657407 U CN 201821657407U CN 209170316 U CN209170316 U CN 209170316U
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Abstract
The utility model discloses a kind of radio-frequency power amplifiers; including radio-frequency power amplification chip; and power supply end, RF signal input end and the RF signal output being electrically connected with the power amplifier chip; the power supply end includes the feeder ear of at least two different voltages; and these feeder ears are powered via protection circuit access power supply to the power amplifier chip simultaneously, ensure that the safety of power supply.Radio-frequency power amplification chip is preferably TGA2533, RF signal input end can be connected with microstrip filter, RF signal output is connected with cavity body filter, between the chip and capacitor, microstrip line, and it is connected between capacitor and capacitor using spun gold and gold ribbon, the Conducted Radio Frequency that the chip is electrically connected with these capacitors can be enhanced, ensure that the radiofrequency characteristics of power amplifier.
Description
Technical field
The utility model belongs to field of communication technology, more particularly to a kind of radio-frequency power amplifier.
Background technique
In satellite communication equipment, ODU (Out-door Unit) refers to outdoor unit, mainly includes frequency transformation and function
Rate amplification, specific to be divided into transmission channel and receiving channel again, transmission channel typically refers to BUC (Block Up-
Converter), i.e., up-conversion power amplifier, receiving channel are primarily referred to as LNB (Low Noise Block down-
Converter), i.e. low noise amplification, frequency converter.
Radio-frequency power amplifier is the important component of sending device.The key technical indexes of radio-frequency power amplifier is
Output power and efficiency.In addition to this, the harmonic component in output should also be as small as possible, generates to avoid to other channels
Interference.The unstable of rate-adaptive pacemaker process influences whether radiofrequency characteristics, in addition, noting also that the volume of radio-frequency power amplifier is big
Small and power problems.
Utility model content
For the utility model mainly solving the technical problems that providing a kind of radio-frequency power amplifier, solution is in the prior art
Supply Security, radiofrequency characteristics instability problem.
In order to solve the above technical problems, the technical solution adopted in the utility model is to provide a kind of radio-frequency power amplifier,
Including radio-frequency power amplification chip, and the power supply end, the RF signal input end that are electrically connected with the power amplifier chip
And RF signal output, the power supply end includes the feeder ear of at least two different voltages, and the feeder ear passes through
Power supply is accessed from protection circuit and is powered simultaneously to the power amplifier chip.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the power amplifier chip is
TGA2533, the feeder ear include -0.55V feeder ear and 6V feeder ear, and the power supply provides 5V to the protection circuit
Power supply and 6V power supply, and further include transforming circuit in the protection circuit, the 5V power supply generates through the transforming circuit-
0.55V voltage is powered to -0.55V the feeder ear, and the 6V power supply provides 6V voltage through the protection circuit and supplies to the 6V
Electric end power supply.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the transforming circuit includes chip
LTC1983ES6-5 and chip AD8615AUJZ, the 5V power supply are electrically connected the power supply of chip LTC1983ES6-5 by inductance
End, the voltage output end of the chip LTC1983ES6-5 then pass through potential-divider network and connect the chip AD8615AUJZ, work as institute
When stating 5V power supply normal power supply, the voltage output end of the chip AD8615AUJZ exports the -0.55V voltage, when described
When 5V power outage, the voltage output end of the chip AD8615AUJZ exports 0V voltage.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the protection circuit include triode and
PMOS tube, the base stage of the triode is electrically connected after one current-limiting resistance of 5V power series, and the emitter of the triode connects
Ground, the first divider resistance of collector series connection and the second divider resistance, it is electric between first divider resistance and the second divider resistance
The grid of the PMOS tube is connected, the other end of second divider resistance is electrically connected the source electrode of the PMOS tube, and described
6V power supply is also electrically connected the source electrode of the PMOS tube, and when the 5V power supply normal power supply, the drain electrode of the PMOS tube exports institute
6V voltage is stated, when the 5V power outage, the drain electrode of the PMOS tube exports 0V voltage.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the triode is MMBT3904, institute
Stating PMOS tube is IRF7210PBF.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the 6V feeder ear electrical connection first is micro-
Band line, first microstrip line pass through spun gold again and are electrically connected with first capacitor, and the first capacitor is further through spun gold and the second electricity
Hold electrical connection, second capacitor is electrically connected by spun gold with the 11st pin of the chip TGA2533；The first capacitor is also
It is electrically connected by spun gold with third capacitor, the third capacitor passes through spun gold the 12nd pin with the chip TGA2533 respectively
It is electrically connected with the 13rd pin；The first capacitor also passes through spun gold and is electrically connected with the 4th capacitor, the 4th capacitor also pass through spun gold with
The electrical connection of 5th capacitor, the 5th capacitor are electrically connected by spun gold with the 7th pin of the chip TGA2533；Described 4th
Capacitor also passes through spun gold and is electrically connected with the 6th capacitor, and the 6th capacitor passes through the 5th of spun gold respectively with the chip TGA2533
Pin and the electrical connection of the 6th pin.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, -0.55V feeder ear the electrical connection
Second microstrip line, second microstrip line pass through spun gold again and are electrically connected with the 7th capacitor, the 7th capacitor further through spun gold with
The electrical connection of 8th capacitor, the 8th capacitor pass through the 14th pin, the 15th pin, the 16th of spun gold and the chip TGA2533
Pin electrical connection.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the first capacitor, the 4th capacitor and
The capacitance of 7th capacitor is 1000pF, and second capacitor, third capacitor, the 5th capacitor, the 6th capacitor, the 8th capacitor are equal
For 100pF.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the 1st of the chip TGA2533 is drawn
Foot is electrically connected with the output end of microstrip filter by gold ribbon as RF signal input end, and the 8th pin is defeated as radiofrequency signal
Outlet is electrically connected with third microstrip line by gold ribbon, and the third microstrip line is linked into cavity body filter.
In a kind of another embodiment of radio-frequency power amplifier of the utility model, the gold ribbon bandwidth is 75um, spun gold
Diameter is 25um.
The beneficial effects of the utility model are: the utility model discloses a kind of radio-frequency power amplifier, including radio frequency function
Rate amplification chip, and the power supply end, RF signal input end and the radiofrequency signal that are electrically connected with the power amplifier chip are defeated
Outlet, which includes the feeder ear of at least two different voltages, and these feeder ears are accessed via protection circuit
Power supply and power simultaneously to the power amplifier chip, ensure that the safety of power supply.Radio-frequency power amplification chip is preferred
For TGA2533, RF signal input end can be connected with microstrip filter, and RF signal output is connected with cavity body filter, should
Spun gold is used between chip and capacitor, microstrip line and between capacitor and capacitor, gold ribbon connection can enhance the chip and this
The Conducted Radio Frequency of a little capacitor electrical connections, ensure that the radiofrequency characteristics of power amplifier.
Detailed description of the invention
Fig. 1 is one embodiment composition block diagram of the utility model radio-frequency power amplifier；
Fig. 2 is chip TGA2533 connection schematic diagram in another embodiment of the utility model radio-frequency power amplifier；
Fig. 3 is transforming circuit schematic diagram in another embodiment of the utility model radio-frequency power amplifier；
Fig. 4 is protection circuit schematic diagram in another embodiment of the utility model radio-frequency power amplifier；
Fig. 5 is that chip TGA2533 is connect with cavity body filter in another embodiment of the utility model radio-frequency power amplifier
Schematic diagram.
Specific embodiment
For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed
Thin explanation.The preferred embodiment of the utility model is given in attached drawing.But the utility model can be with many different
Form is realized, however it is not limited to this specification described embodiment.On the contrary, purpose of providing these embodiments is makes to this
The understanding of the disclosure of utility model is more thorough and comprehensive.
It should be noted that unless otherwise defined, all technical and scientific terms used in this specification with belong to
The normally understood meaning of those skilled in the art of the utility model is identical.In the used in the description of the utility model
Term be only for the purpose of describing specific embodiments be not intended to limitation the utility model.
With reference to the accompanying drawing, each embodiment of the utility model is described in detail.Fig. 1 is that the utility model one kind is penetrated
One embodiment composition block diagram of frequency power amplifier.As shown in Figure 1, the radio-frequency power amplifier includes radio-frequency power amplification chip
01, and the power supply end 013, RF signal input end 011 and the radiofrequency signal that are electrically connected with the power amplifier chip 01
Output end 012, the power supply end 013 include the feeder ear (there are two representing in Fig. 1) of at least two different voltages,
And the feeder ear accesses power supply 03 via protection circuit 02 and powers simultaneously to the power amplifier chip.
As can be seen that in embodiment illustrated in fig. 1, since power amplifier chip is the feeder ear using multiple and different voltages
Power supply, this requires power supply of the protection circuit to access to have unified control function, guarantees that these feeder ears can be same
When power and power-off, be not in these power supply end parts power supplies, and the problem of another side does not power, it is ensured that power amplification
The safety and reliability of chip operation.
Preferably, as shown in Fig. 2, the power amplifier chip is TGA2533, the feeder ear includes -0.55V feeder ear
With 6V feeder ear, the power supply provides 5V power supply and 6V power supply to the protection circuit, and in the protection circuit also
Including transforming circuit, the 5V power supply is powered through the transforming circuit generation -0.55V voltage to the -0.55V feeder ear, institute
It states 6V power supply and powers through protection circuit offer 6V voltage to the 6V feeder ear.
It is further preferred that as shown in figure 3, the transforming circuit includes chip LTC1983ES6-5 and chip
AD8615AUJZ, the 5V power supply are electrically connected the power end of chip LTC1983ES6-5 by concatenated inductance L14 and L15, should
Power end is also electrically connected shunt capacitance C82 and is grounded, and the voltage output end of the chip LTC1983ES6-5 then passes through partial pressure
It is connected to the network the chip AD8615AUJZ, when the 5V power supply normal power supply, the voltage of the chip AD8615AUJZ is defeated
Outlet exports the -0.55V voltage, when the 5V power outage, the voltage output end of the chip AD8615AUJZ
Export the 0V voltage.It can also be seen that the voltage that potential-divider network here is primarily referred to as the chip LTC1983ES6-5 is defeated
The 3rd pin of access chip AD8615AUJZ after outlet series resistor R35, and the pin is also electrically connected another resistance R36, electricity
Hinder R36 the other end ground connection, and the voltage output end of chip LTC1983ES6-5 also directly with chip AD8615AUJZ the 2nd
Pin electrical connection.The 1st pin of chip AD8615AUJZ and the electrical connection of the 4th pin, and the 4th pin is as its voltage output end
It is also connected with shunt capacitance C86 and C85, C85=0.1uF, C86=1nF.4th pin output voltage is to radio-frequency power
- 0.55V the voltage of -0.55V feeder ear the output of amplifier.
Preferably, as shown in figure 4, the protection circuit further includes triode MMBT3904 and PMOS tube IRF7210PBF,
The base stage of the triode MMBT3904, the triode are electrically connected after the one current-limiting resistance R34 of 5V power series
The emitter of MMBT3904 is grounded, collector series connection the first divider resistance R31 and the second divider resistance R30, first partial pressure
The grid of the PMOS tube IRF7210PBF, the second partial pressure electricity are electrically connected between resistance R31 and the second divider resistance R30
The other end of resistance R30 is electrically connected the source electrode of the PMOS tube IRF7210PBF, and the 6V power supply is also electrically connected the PMOS
The source electrode of pipe IRF7210PBF, when the 5V power supply normal power supply, described in the drain electrode output of the PMOS tube IRF7210PBF
6V voltage, when the 5V power outage, the drain electrode of the PMOS tube IRF7210PBF exports 0V voltage.The PMOS tube
The drain electrode of IRF7210PBF is electrically connected the 6V feeder ear and provides 6V voltage to the chip TGA2533.
It is further preferred that the resistance value of the first divider resistance R31 and the second divider resistance R30 are 50k Ω.Here
When 5V power supply is normal, triode MMBT3904 conducting, 6V power supply passes through the first divider resistance R30 and the second divider resistance
R31, so that generate pressure difference between the grid G and source S of PMOS tube IRF7210PBF, so that 6V power supply be connected to drain D, in turn
Export 6V voltage, if 5V power supply does not add, triode MMBT3904 is not turned on, and divider resistance 31 will not work, grid G and
Without pressure difference between source S, PMOS tube IRF7210PBF is not turned on, and drain D will not export pressure stabilizing 6V voltage, but export 0V voltage.
Obviously, from the figure 3, it may be seen that the triode is preferably MMBT3904, the PMOS tube is preferably IRF7210PBF.
Preferably, as shown in Fig. 2, the 6V feeder ear is electrically connected the first microstrip line 11, first microstrip line 11 leads to again
It crosses spun gold to be electrically connected with first capacitor DR1, the first capacitor DR1 is electrically connected further through spun gold with the second capacitor DR2, described
Second capacitor DR2 is electrically connected by spun gold with the 11st pin of the chip TGA2533；The first capacitor DR1 also passes through gold
Silk is electrically connected with third capacitor DR3, and the third capacitor DR3 passes through spun gold the 12nd pin with the chip TGA2533 respectively
It is electrically connected with the 13rd pin；The first capacitor DR1 also passes through spun gold and is electrically connected with the 4th capacitor DR4, and the 4th capacitor DR4 is also logical
It crosses spun gold to be electrically connected with the 5th capacitor DR5, the 5th capacitor DR5 passes through the 7th pin of spun gold and the chip TGA2533
Electrical connection；The 4th capacitor DR4 also passes through spun gold and is electrically connected with the 6th capacitor DR6, and the 6th capacitor DR6 passes through spun gold point
It is not electrically connected with the 5th pin of the chip TGA2533 and the 6th pin.
Preferably, as shown in Fig. 2, -0.55V the feeder ear is electrically connected the second microstrip line 12, second microstrip line 12
It is electrically connected again by spun gold with the 7th capacitor DR7, the 7th capacitor DR7 is electrically connected further through spun gold with the 8th capacitor DR8, institute
The 8th capacitor DR8 is stated to be electrically connected by spun gold with the 14th pin, the 15th pin, the 16th pin of the chip TGA2533.
It is further preferred that the 1st pin of the chip TGA2533 is as RF signal input end in conjunction with Fig. 2 and Fig. 5
It is electrically connected with the output end 13 of microstrip filter 15 by gold ribbon, the 8th pin is as RF signal output and third microstrip line
14 are electrically connected by gold ribbon, and the third microstrip line 14 is linked into cavity body filter 16.The radio-frequency filter 15 is used to inhibit
Radiofrequency signal intermodulation clutter, the cavity body filter 16 are used to carry out Out-of-band rejection to radiofrequency signal.
The junction of the chip TGA2533 pin and capacitor and port uses spun gold and gold ribbon, capacitor and capacitor it
Between connection use spun gold.This connection type belongs to gold wire bonding, and microstrip transmission line, list are realized using gold wire bonding technology
Interconnection between piece microwave integrated circuit and lump type component, unlike interconnection line in digital circuit, bonding gold wire
Parameter characteristic such as quantity, length, sagitta, span, bond pad locations etc. all can microwave transmission characteristic have an impact.And bonding gold wire
Diameter on transmission performance influence it is more obvious；Sagitta is lower, and spun gold length is smaller, and transmission loss is smaller；Similarly, bonding gold wire
Span it is smaller, property of interconnections is better；The insertion loss of more Herba Anoectochili roxburghiis is also significantly better than single Herba Anoectochili roxburghii.The gold that Fig. 5 is shown
Silk, gold ribbon quantity be also quantity in practical application.Preferably, gold ribbon bandwidth is 75um, and spun gold diameter is 25um.
The use of spun gold and gold ribbon can be improved the conductibility of radiofrequency signal, transmission loss be reduced, although will increase into
This, but advantageously ensure that the radiofrequency characteristics of radio-frequency channel circuit.
Preferably, the capacitance of the first capacitor DR1, the 4th capacitor DR4 and the 7th capacitor DR7 are 1000pF, institute
Stating the second capacitor DR2, third capacitor DR3, the 5th capacitor DR5, the 6th capacitor DR6, the 8th capacitor DR8 is 100pF.
Based on above embodiments, the utility model discloses a kind of radio-frequency power amplifiers, including radio-frequency power to amplify core
Piece, and the power supply end, RF signal input end and the RF signal output that are electrically connected with the power amplifier chip, the confession
Electric power end includes the feeder ear of at least two different voltages, and these feeder ears via protection circuit access power supply and
It powers simultaneously to the power amplifier chip, ensure that the safety of power supply.Radio-frequency power amplification chip is preferably TGA2533,
RF signal input end can be connected with microstrip filter, and RF signal output is connected with cavity body filter, the chip and capacitor,
Spun gold is used between microstrip line and between capacitor and capacitor, gold ribbon connection can enhance the chip and be electrically connected with these capacitors
Conducted Radio Frequency, ensure that the radiofrequency characteristics of power amplifier.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other
Technical field is included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of radio-frequency power amplifier, including radio-frequency power amplification chip, and be electrically connected with the power amplifier chip
Power supply end, RF signal input end and RF signal output, which is characterized in that the power supply end includes at least two
The feeder ear of a different voltages, and the feeder ear is via protection circuit access power supply and to the power amplifier chip
It powers simultaneously.
2. radio-frequency power amplifier according to claim 1, which is characterized in that the power amplifier chip is TGA2533,
The feeder ear includes -0.55V feeder ear and 6V feeder ear, and the power supply provides 5V power supply and 6V to the protection circuit
Power supply, and further include transforming circuit in the protection circuit, the 5V power supply is through the transforming circuit generation -0.55V voltage
It powers to -0.55V the feeder ear, the 6V power supply provides 6V voltage through the protection circuit and powers to the 6V feeder ear.
3. radio-frequency power amplifier according to claim 2, which is characterized in that the transforming circuit includes chip
LTC1983ES6-5 and chip AD8615AUJZ, the 5V power supply are electrically connected the power supply of chip LTC1983ES6-5 by inductance
End, the voltage output end of the chip LTC1983ES6-5 then pass through potential-divider network and connect the chip AD8615AUJZ, work as institute
When stating 5V power supply normal power supply, the voltage output end of the chip AD8615AUJZ exports the -0.55V voltage, as the 5V
When power outage, the voltage output end of the chip AD8615AUJZ exports 0V voltage.
4. radio-frequency power amplifier according to claim 2, which is characterized in that the protection circuit include triode and
PMOS tube, the base stage of the triode is electrically connected after one current-limiting resistance of 5V power series, and the emitter of the triode connects
Ground, the first divider resistance of collector series connection and the second divider resistance, it is electric between first divider resistance and the second divider resistance
The grid of the PMOS tube is connected, the other end of second divider resistance is electrically connected the source electrode of the PMOS tube, and described
6V power supply is also electrically connected the source electrode of the PMOS tube, and when the 5V power supply normal power supply, the drain electrode of the PMOS tube exports institute
6V voltage is stated, when the 5V power outage, the drain electrode of the PMOS tube exports 0V voltage.
5. radio-frequency power amplifier according to claim 4, which is characterized in that the triode is MMBT3904, described
PMOS tube is IRF7210PBF.
6. radio-frequency power amplifier according to claim 5, which is characterized in that the 6V feeder ear is electrically connected the first micro-strip
Line, first microstrip line pass through spun gold again and are electrically connected with first capacitor, and the first capacitor is further through spun gold and the second capacitor
Electrical connection, second capacitor are electrically connected by spun gold with the 11st pin of the chip TGA2533；The first capacitor is also logical
Spun gold is crossed to be electrically connected with third capacitor, the third capacitor by spun gold respectively with the 12nd pin of the chip TGA2533 and
The electrical connection of 13rd pin；The first capacitor also passes through spun gold and is electrically connected with the 4th capacitor, and the 4th capacitor also passes through spun gold and
The electrical connection of five capacitors, the 5th capacitor are electrically connected by spun gold with the 7th pin of the chip TGA2533；4th electricity
Hold and be also electrically connected by spun gold with the 6th capacitor, the 6th capacitor is drawn with the 5th of the chip TGA2533 the respectively by spun gold
Foot and the electrical connection of the 6th pin.
7. radio-frequency power amplifier according to claim 6, which is characterized in that -0.55V feeder ear the electrical connection second
Microstrip line, second microstrip line pass through spun gold again and are electrically connected with the 7th capacitor, and the 7th capacitor is further through spun gold and the 8th
Capacitor electrical connection, the 8th capacitor pass through the 14th pin, the 15th pin, the 16th pin of spun gold and the chip TGA2533
Electrical connection.
8. radio-frequency power amplifier according to claim 7, which is characterized in that the first capacitor, the 4th capacitor and
The capacitance of seven capacitors is 1000pF, and second capacitor, third capacitor, the 5th capacitor, the 6th capacitor, the 8th capacitor are
100pF。
9. radio-frequency power amplifier according to claim 8, which is characterized in that the 1st pin of the chip TGA2533 is made
It is electrically connected with the output end of microstrip filter by gold ribbon for RF signal input end, the 8th pin is as RF signal output
It is electrically connected with third microstrip line by gold ribbon, the third microstrip line is linked into cavity body filter.
10. radio-frequency power amplifier according to claim 9, which is characterized in that the gold ribbon bandwidth is 75um, and spun gold is straight
Diameter is 25um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821657407.1U CN209170316U (en) | 2018-10-12 | 2018-10-12 | A kind of radio-frequency power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821657407.1U CN209170316U (en) | 2018-10-12 | 2018-10-12 | A kind of radio-frequency power amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN209170316U true CN209170316U (en) | 2019-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821657407.1U Active CN209170316U (en) | 2018-10-12 | 2018-10-12 | A kind of radio-frequency power amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429395A (en) * | 2019-08-27 | 2019-11-08 | 上海航天电子通讯设备研究所 | The connection structure and method of coaxial switch and substrate micro-strip |
| CN110739920A (en) * | 2019-11-04 | 2020-01-31 | 南京屹信航天科技有限公司 | Ka-band power amplifiers |
-
2018
- 2018-10-12 CN CN201821657407.1U patent/CN209170316U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429395A (en) * | 2019-08-27 | 2019-11-08 | 上海航天电子通讯设备研究所 | The connection structure and method of coaxial switch and substrate micro-strip |
| CN110739920A (en) * | 2019-11-04 | 2020-01-31 | 南京屹信航天科技有限公司 | Ka-band power amplifiers |
| CN110739920B (en) * | 2019-11-04 | 2023-06-16 | 南京屹信航天科技有限公司 | Ka-band power amplifier |
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