CN201869168U - UHF waveband multi-octave power amplifier - Google Patents
UHF waveband multi-octave power amplifier Download PDFInfo
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- CN201869168U CN201869168U CN2010206375183U CN201020637518U CN201869168U CN 201869168 U CN201869168 U CN 201869168U CN 2010206375183 U CN2010206375183 U CN 2010206375183U CN 201020637518 U CN201020637518 U CN 201020637518U CN 201869168 U CN201869168 U CN 201869168U
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Abstract
The utility model discloses a UHF (ultra high frequency) waveband multi-octave power amplifier, relating to a power amplifier of a channel part in the communication field. The UHF waveband multi-octave power amplifier comprises a radio frequency amplifying circuit, an auxiliary circuit and the like. By adopting balance synthetic technique to finish power synthesis, the UHF waveband multi-octave power amplifier has a radio frequency turn-off function and provides power forward output level sampling and amplifying and reflection power protection level. The UHF waveband multi-octave power amplifier has a all-solid design, prolongs the service life, reduces maintenance time and is especially suitable for being used as a power amplifier in a communication system of UHF waveband.
Description
Technical field
The utility model relates to a kind of UHF wave band multi-octave power amplifier in the communications field, and operating frequency is 500～2000MHz, and power output is 40dBm, is specially adapted to the power amplifier in the microwave telecommunication system.
Background technology
The demand of UHF wave band multi-octave power amplifier in communication system is increasing at present, though present stage UHF wave band wideband power amplifer has, but the multi-octave power amplifier but seldom, in every respect performance all satisfy the microwave telecommunication devices requirement just still less, can not satisfy the consumer wideband communication requirement.The power amplifier that has does not have the radio frequency turn-off function, and it is not enough perhaps to turn-off the degree of depth; The bandwidth of operation that has can not satisfy the bandwidth of operation requirement; The volume that has is excessive, and efficient is too low.
Summary of the invention
The purpose of this utility model be to avoid the weak point in the above-mentioned background technology and provide a kind of performance index all satisfy communication needs all solid state power amplifier of UHF wave band multi-octave, as power output, gain, switching speed and the shutoff degree of depth, power supply, the linearity, efficient etc.It has characteristics such as miniaturization, solid state, linear height, high efficiency, high reliability and life-span length.Simultaneously, efficient improves and has reduced power consumption, makes long-pending the reducing of oily body of power supply, has improved the mobility and the disguise of system.
The purpose of this utility model is achieved in that
A kind of UHF wave band multi-octave power amplifier, it comprises auxiliary circuit, also comprises radio circuit; Described radio circuit comprises a promotion level power amplifier, penultimate stage power amplifier, power splitter, first to second final stage power amplifier, mixer and dual directional coupler, end 1 pin of going into that wherein promotes the level power amplifier connects rf inputs mouth A, promote the level power amplifier go out that end 2 pin connect the penultimate stage power amplifier go into end 1 pin; Penultimate stage merit discharge end 2 pin are gone into end 1 pin with power splitter and are connected; 2,3 pin that power splitter goes out end link to each other with end 1 pin of going into of first final stage power amplifier and second final stage power amplifier respectively; End 2 pin that go out of first final stage power amplifier and second final stage power amplifier are connected with end 1,2 pin of going into of mixer respectively; End 3 pin that go out of mixer go into to hold 1 pin to be connected with dual directional coupler; Dual directional coupler goes out end 2 pin and connects radio-frequency (RF) output end mouth B;
Radio-frequency input signals carries out first order amplification through promoting behind the level power amplifier, signal after the amplification amplifies once more through the penultimate stage power amplifier, after entering power splitter afterwards signal is divided into two, two paths of signals is given first to second final stage power amplifier respectively, give dual directional coupler through mixer after synthetic after first to second final stage power amplifier amplifies respectively two paths of signals and be coupled, again signal is exported.
Described auxiliary circuit comprises radio frequency shutoff and voltage conversion circuit, power output forward sampled level amplifying circuit, reflection power sampled level amplifying circuit; Wherein radio frequency turn-offs with end 1,2 pin that go out of voltage conversion circuit and goes into to hold 3,4 pin to link to each other with promotion level power amplifier respectively, radio frequency turn-offs with end 3,4 pin that go out of voltage transformation part and is connected with end 3,4 pin of going into of penultimate stage power amplifier respectively, radio frequency turn-offs with end 5 pin of going into of voltage transformation part and is connected with external power source C, radio frequency turn-offs with end 6 pin of going into of voltage transformation part and is connected with external power source D, and radio frequency turn-offs with end 7 pin of going into of voltage transformation part and is connected with outer monitoring signal E; End 2 pin of going into of power output sampled level amplifying circuit link to each other with end 3 pin that go out of dual directional coupler, and end 1 pin that goes out of power output sampled level amplifying circuit is connected with outer monitoring signal port F; End 1 pin of going into of reflection power sampled level amplifying circuit links to each other with end 4 pin that go out of dual directional coupler, and end 2 pin that go out of reflection power sampled level amplifying circuit are connected with outer monitoring signal port G.
The utility model is compared background technology and is had following advantage:
1. the utility model power amplifier working band is wide, reaches a plurality of octaves.
2. the utility model power amplifier has the radio frequency turn-off function, and the shutoff degree of depth is darker.
3, the utility model adopts all solid stateization design, has improved the life-span and the reliability of power amplifier, the good linearity of power amplifier, efficient height.
4. the utility model power amplifier structure is designed to an independent box body, and weight and volume all reduces, integrated level height, convenient maintenance and replacement.
Description of drawings
Fig. 1 is the utility model functional-block diagram.
Embodiment
With reference to Fig. 1, the utility model is made up of auxiliary circuit 1, radio circuit 2.Fig. 1 is an electric functional-block diagram of the present utility model, and embodiment presses Fig. 1 connection line.Wherein the effect of auxiliary circuit 1 is to radio circuit 2 power supplies and level amplification after turn-offing radio circuit signal and rf sampling detection, direct-current working volts and external interface signal are provided, its input-V1 ,-V7 voltage is-5V, input+V2 ,+V6 voltage is+28V, + V3 input voltage be 0V or+5V, + V4 output voltage is 0～+ 5V ,+V5 output voltage be 0V or+5V.
The effect of radio circuit 2 is that the low-power level that radio frequency is imported is amplified to the high power levels that signal post needs, finish power amplification, the modulated signal of upconverter output is amplified to certain level by promoting level power amplifier 3 and penultimate stage power amplifier 4, and then give splitter 5 with amplified signal, splitter 5 promotes first to second final stage power amplifier 6,7 respectively, first to second final stage power amplifier, 6,7 amplified signal enter mixer 8, synthesize to be amplified to specified power level.Radio circuit 2 comprises a promotion level power amplifier 3, penultimate stage power amplifier 4, power splitter 5, first to second final stage power amplifier 6,7, mixer 8, dual directional coupler 9.Wherein behind the radio-frequency input signals process promotion level power amplifier 3, the input standing wave improves, and the effect of directional coupler 9 is that the signal that will import is coupled into small-signal, and then delivers to supervisory circuit after the process wave detector detection amplification.
Radio-frequency input signals is given penultimate stage power amplifier 4 through promoting behind the level power amplifier 3, penultimate stage power amplifier 4 output radiofrequency signals enter splitter 5, the power supply that promotes level power amplifier 3 and penultimate stage power amplifier 4 is that the radio frequency breaking circuit by control circuit provides, radio frequency breaking circuit and promote a level power amplifier 3 and finish the radio frequency turn-off function jointly; Promote 3 pairs of signals of level power amplifier and carry out first order amplification, after signal after the amplification amplifies through penultimate stage power amplifier 4, signal enters power splitter 5 signal is divided into two, two paths of signals is given first to second final stage power amplifier 6,7 respectively, after amplifying, 6, the 7 pairs of two paths of signals of first to second final stage power amplifier give dual directional coupler 9 after synthetic through mixer 8, the effect of dual directional coupler 9 is that forward power output and backward power are coupled into small-signal, through behind the power detection, give auxiliary circuit and amplify, amplify back output and give monitoring.The effect of backward power sampling is when the output standing-wave ratio is relatively poor, give the detection of power detection pipe after reflection power can being taken a sample through dual directional coupler, compare and enlarge giving control circuit after the reflection power detection, provide high-low level, give supervisory circuit.Embodiment power splitter 5, mixer 8 adopt commercially available universal component to make.Promote level power amplifier 3, penultimate stage power amplifier 4, first to second final stage power amplifier 6,7, dual directional coupler 9 all can be by the corresponding component module making.
Operation principle of the present utility model is as follows: auxiliary circuit 1 gives radio circuit 2 power supplies, radio circuit 2 is exported by radio-frequency (RF) output end mouth B after the signal of rf inputs mouth A is amplified to nominal level, and auxiliary circuit 1 and radio circuit 2 cooperatively interact and finish function corresponding.
The utility model mounting structure is as follows: integeral part among Fig. 1 to Fig. 2 is installed in the box body of 177 * a 131 * 27mm two cavitys about box body divides.The promotion level power amplifier 3 of radio circuit 2 and the radio frequency breaking circuit of penultimate stage power amplifier 4 and auxiliary circuit 1 are installed in the cavity; Forward and reverse detector amplifier of the final stage power amplifier 6 of radio circuit 2 and final stage power amplifier 7, dual directional coupler and auxiliary circuit 1 is installed in another cavity.Radio frequency input, radio frequency output and power supply, signal port be all at the same end of box body, assembly cost utility model power amplifier.
Claims (2)
1. UHF wave band multi-octave power amplifier, it comprises auxiliary circuit (1), it is characterized in that: also comprise radio circuit (2); Described radio circuit (2) comprises a promotion level power amplifier (3), penultimate stage power amplifier (4), power splitter (5), first to second final stage power amplifier (6,7), mixer (8) and dual directional coupler (9), end 1 pin of going into that wherein promotes level power amplifier (3) connects rf inputs mouth A, promote level power amplifier (3) go out that end 2 pin connect penultimate stage power amplifiers (4) go into end 1 pin; Penultimate stage power amplifier (4) goes out end 2 pin and goes into to hold 1 pin to be connected with power splitter (5); 2,3 pin that power splitter (5) goes out end link to each other with end 1 pin of going into of first final stage power amplifier (6) and second final stage power amplifier (7) respectively; End 2 pin that go out of first final stage power amplifier (6) and second final stage power amplifier (7) are connected with end 1,2 pin of going into of mixer (8) respectively; End 3 pin that go out of mixer (8) go into to hold 1 pin to be connected with dual directional coupler (9); Dual directional coupler (9) goes out end 2 pin and connects radio-frequency (RF) output end mouth B;
Radio-frequency input signals carries out first order amplification through promoting behind the level power amplifier (3), signal after the amplification amplifies once more through penultimate stage power amplifier (4), after entering power splitter (5) afterwards signal is divided into two, two paths of signals is given first to second final stage power amplifier (6,7) respectively, give dual directional coupler (9) through mixer (8) after synthetic after first to second final stage power amplifier (6,7) amplifies respectively two paths of signals and be coupled, again signal is exported.
2. a kind of UHF wave band multi-octave power amplifier according to claim 1 is characterized in that: described auxiliary circuit (1) comprises that radio frequency turn-offs and voltage conversion circuit (10), power output forward sampled level amplifying circuit (11), reflection power sampled level amplifying circuit (12); Wherein radio frequency turn-offs with end 1,2 pin that go out of voltage conversion circuit (10) and goes into to hold 3,4 pin to link to each other with a promotion level power amplifier (3) respectively, radio frequency turn-offs with end 3,4 pin that go out of voltage transformation part (10) and is connected with end 3,4 pin of going into of penultimate stage power amplifier (6) respectively, radio frequency turn-offs with end 5 pin of going into of voltage transformation part (10) and is connected with external power source C, radio frequency turn-offs with end 6 pin of going into of voltage transformation part (10) and is connected with external power source D, and radio frequency turn-offs with end 7 pin of going into of voltage transformation part (10) and is connected with outer monitoring signal E; End 2 pin of going into of power output sampled level amplifying circuit (11) link to each other with end 3 pin that go out of dual directional coupler (9), and end 1 pin that goes out of power output sampled level amplifying circuit (11) is connected with outer monitoring signal port F; End 1 pin of going into of reflection power sampled level amplifying circuit (12) links to each other with end 4 pin that go out of dual directional coupler (9), and end 2 pin that go out of reflection power sampled level amplifying circuit (12) are connected with outer monitoring signal port G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206375183U CN201869168U (en) | 2010-12-02 | 2010-12-02 | UHF waveband multi-octave power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206375183U CN201869168U (en) | 2010-12-02 | 2010-12-02 | UHF waveband multi-octave power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869168U true CN201869168U (en) | 2011-06-15 |
Family
ID=44140310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206375183U Expired - Lifetime CN201869168U (en) | 2010-12-02 | 2010-12-02 | UHF waveband multi-octave power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869168U (en) |
-
2010
- 2010-12-02 CN CN2010206375183U patent/CN201869168U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |