CN204119174U - A kind of ultra-wideband amplifier - Google Patents
A kind of ultra-wideband amplifier Download PDFInfo
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- CN204119174U CN204119174U CN201420651705.5U CN201420651705U CN204119174U CN 204119174 U CN204119174 U CN 204119174U CN 201420651705 U CN201420651705 U CN 201420651705U CN 204119174 U CN204119174 U CN 204119174U
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- impedance transformer
- power splitter
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Abstract
The utility model discloses a kind of ultra-wideband amplifier, comprise input matching network, amplifier tube and output matching network, the output of described input matching network is connected with the input of amplifier tube, and the output of amplifier tube is connected with the input of output matching network; It is a little specifically: can realize double frequency and with the coupling of super band amplifier impedance; Circuit design method is simple, easily realizes; The ultra broadband impedance matching of amplifier single tube can be realized; Operating efficiency is higher, and production cost is lower.
Description
Technical field
The utility model relates to the amplifier that one is applied to ultra broadband (UWB) system and multi-frequency radio communication system, particularly relates to a kind of amplifier that can realize ultra broadband and multi-frequency impedance coupling.
Background technology
Ultra broadband (ultra mono-wideband, UWB) radio signal adopts burst pulse that power spectral density is extremely low as signal vehicle usually, it declines soon and falls into oblivion in background noise in space environment, there is good disguise and Anti TBIgG ability, be very suitable for military communication; Simultaneously take very big bandwidth because of it, generally all at more than 1GHz, having great information capacity, good anti-multipath performance and high time divides pigtail characteristic, receives much concern with accurately locating in occasion at high speed radio transmission.As the core devices of communication system, the general bandwidth of amplifier is tens MHz, and the amplifier design philosophy reaching more than 1GHz bandwidth is then the Focal point and difficult point of system and research.
Along with the fast development of wireless communication technology, traditional single frequency band communication system gradually to the future development of multiband, as the systems such as 3G, LTE, WLAN are all operated in multiband.In order to meet the demand of multiband work, the transceiver of communication system should possess the function being operated in multiple frequency range, to realize miniaturization, increase flexibility and reduce cost, therefore, the amplifier of Design and implementation two-frequency operation has far reaching significance, is also the emphasis of current research.
Current, multi-frequency amplifier designing technique has composite left-and-right-hand technology, π type matching network, coupling line technology etc., and the existence of these technology is difficult to design or can not designs any multifrequency matching network, so Application comparison is difficult.
Its concrete shortcoming is: 1) be difficult to the double frequency coupling realizing the different impedance of optional frequency; 2) coupling realizing the different impedance of the above circuit of double frequency is difficult to; 3) circuit counting relative complex, makes its Application comparison difficulty.
The ultra-wideband amplifier that bandwidth reaches GHz is substantially all that application multichannel amplifies parallel technology, and this technology can realize broadband, but it is in parallel to apply multiple amplifier tube, and cost is high, and topological area is comparatively large, is unfavorable for cost-saving and realization that is product miniaturization.Its concrete shortcoming: 1) production cost of multitube parallel is high; 2) topological Area comparison is large.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of amplifier being applied to multifrequency and ultra broadband, this amplifier adopts input, output-resistor matching technique, this combine with technique merit divides technology, impedance transformation technology and mixer technology simultaneously, to realize input and output ultra broadband or the multi-frequency impedance coupling of amplifier circuit.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of ultra-wideband amplifier, comprise input matching network, amplifier tube and output matching network, the output of described input matching network is connected with the input of amplifier tube, and the output of amplifier tube is connected with the input of output matching network;
Described input matching network comprises the first power splitter, the first impedance transformer group and the first bank of filters, the first described power splitter has an input port and at least two output ports, first impedance transformer group is made up of multiple first impedance transformer, the quantity of the first impedance transformer is equal with the output port quantity of the first power splitter, first bank of filters is made up of multiple first filter, the quantity of the first filter is equal with the quantity of the first impedance transformer
Described output matching network comprises the second bank of filters, the second impedance transformer group and the second power splitter, the second described bank of filters is made up of at least two the second filters, second impedance transformer group is made up of at least two the second impedance transformers, second power splitter has a total output port and at least two input ports, the quantity of the second impedance transformer is equal with the quantity of the second filter, and the input port quantity of the second power splitter is equal with the quantity of the second filter;
Radiofrequency signal is input to the input port of the first power splitter, each output port of the first power splitter is connected with the input port of each first impedance transformer, the output port of each first impedance transformer is connected with the input port of each first filter, the output port composition public output mouth of all first filters, public output mouth is connected with the input port of amplifier;
The output port of amplifier is connected with the input port of the second all filters, the output port of each second filter is connected with the input port of each second impedance transformer, and the output port of each second impedance transformer is connected with each input port of the second power splitter.
Described amplifier is triode or transistor.
Compared with prior art, the utility model has the advantages that the input-output adapt ation network multilink of amplifier works alone, to realize multifrequency or ultra broadband.Amplifier tube has different impedances in different frequencies, the effect of input and output matching circuit is exactly the working impedance of the input and output impedance transformation of amplifier tube to system, if communication system is 50 ohm, just apply match circuit the impedance transformation of amplifier tube to 50 ohm.But the match circuits such as common π type, L-type or coupled mode are all difficult to the broadband realizing GHz, the technology such as composite left-and-right-hand are also difficult to the multifrequency coupling realizing characteristic frequency.And impedance extraction is carried out with multiple filter respectively in the both sides of amplifier tube, namely mixer technology realizes, and mixer can realize the impedance-tumed of different frequency, and namely solution common port carries out separately the mutual of impedance matching affects problem.For the input of amplifier tube, with impedance transformer, the impedance transformation of filter input end is become system impedance, and be connected with each road of power splitter, achieve the single input of overall input impedance matching circuit and single output, and can multifrequency mate separately.Equally, for the output of amplifier tube, with impedance transformer, the impedance transformation of the output of filter is become system impedance, then be connected with each road of power splitter, and output signal from the common port of power splitter, achieve the single input of output impedance match circuit and single output, and can multifrequency mate separately.Compare with super-broadband tech with existing multifrequency, the advantage that has of the utility model patent is: 1, can realize double frequency and with the coupling of super band amplifier impedance; 2, circuit design method is simple, easily realizes; 3, the ultra broadband impedance matching of amplifier single tube can be realized; 4, operating efficiency is higher, and production cost is lower.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
A kind of ultra-wideband amplifier, comprise input matching network 1, amplifier tube 2 and output matching network 3, the output of input matching network 1 is connected with the input of amplifier tube 2, and the output of amplifier tube 2 is connected with the input of output matching network 3;
Input matching network 1 comprises the first power splitter 4, first impedance transformer group 5 and the first bank of filters 6, first power splitter 4 has an input port 7 and three output ports 41, first impedance transformer group 5 is made up of three the first impedance transformers 51, the quantity of the first impedance transformer 51 is equal with output port 8 quantity of the first power splitter 4, first bank of filters 6 is made up of three the first filters 61, the quantity of the first filter 61 is equal with the quantity of the first impedance transformer 51
Output matching network 3 comprises the second bank of filters 9, second impedance transformer group 10 and the second power splitter 11, second bank of filters 9 is made up of three the second filters 91, second impedance transformer group 10 is made up of three the second impedance transformers 101, second power splitter 11 has a total output port 111 and three input ports 112, the quantity of the second impedance transformer 101 is equal with the quantity of the second filter 91, and input port 112 quantity of the second power splitter 11 is equal with the quantity of the second filter 91;
Radiofrequency signal RF is input to the input port 7 of the first power splitter 4, each output port 8 of the first power splitter 4 is connected with the input port of each first impedance transformer 51, the output port of each first impedance transformer 51 is connected with the input port of each first filter 61, the output port composition public output mouth G of all first filters 61, public output mouth G is connected with the input port of amplifier 2;
The output port of amplifier 2 is connected with the input port of the second all filters 91, the output port of each second filter 91 is connected with the input port of each second impedance transformer 101, and the output port of each second impedance transformer 101 is connected with each input port of the second power splitter 11.Amplifier 2 is triode or transistor.
Claims (2)
1. a ultra-wideband amplifier, comprises input matching network, amplifier tube and output matching network, and the output of described input matching network is connected with the input of amplifier tube, and the output of amplifier tube is connected with the input of output matching network;
Described input matching network comprises the first power splitter, the first impedance transformer group and the first bank of filters, the first described power splitter has an input port and at least two output ports, first impedance transformer group is made up of multiple first impedance transformer, the quantity of the first impedance transformer is equal with the output port quantity of the first power splitter, first bank of filters is made up of multiple first filter, the quantity of the first filter is equal with the quantity of the first impedance transformer
Described output matching network comprises the second bank of filters, the second impedance transformer group and the second power splitter, the second described bank of filters is made up of at least two the second filters, second impedance transformer group is made up of at least two the second impedance transformers, second power splitter has a total output port and at least two input ports, the quantity of the second impedance transformer is equal with the quantity of the second filter, and the input port quantity of the second power splitter is equal with the quantity of the second filter;
Radiofrequency signal is input to the input port of the first power splitter, each output port of the first power splitter is connected with the input port of each first impedance transformer, the output port of each first impedance transformer is connected with the input port of each first filter, the output port composition public output mouth of all first filters, public output mouth is connected with the input port of amplifier;
The output port of amplifier is connected with the input port of the second all filters, the output port of each second filter is connected with the input port of each second impedance transformer, and the output port of each second impedance transformer is connected with each input port of the second power splitter.
2. a kind of ultra-wideband amplifier according to claim 1, is characterized in that described amplifier is triode or transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651705.5U CN204119174U (en) | 2014-11-04 | 2014-11-04 | A kind of ultra-wideband amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651705.5U CN204119174U (en) | 2014-11-04 | 2014-11-04 | A kind of ultra-wideband amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119174U true CN204119174U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651705.5U Expired - Fee Related CN204119174U (en) | 2014-11-04 | 2014-11-04 | A kind of ultra-wideband amplifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN204119174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300921A (en) * | 2014-11-04 | 2015-01-21 | 浙江纺织服装职业技术学院 | Ultra-wideband or multiband amplifier |
-
2014
- 2014-11-04 CN CN201420651705.5U patent/CN204119174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300921A (en) * | 2014-11-04 | 2015-01-21 | 浙江纺织服装职业技术学院 | Ultra-wideband or multiband 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: 20150121 Termination date: 20171104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |