CN205430223U - General receipts of wide band section radio frequency / bill unit suitable for radio station - Google Patents
General receipts of wide band section radio frequency / bill unit suitable for radio station Download PDFInfo
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- CN205430223U CN205430223U CN201520979288.1U CN201520979288U CN205430223U CN 205430223 U CN205430223 U CN 205430223U CN 201520979288 U CN201520979288 U CN 201520979288U CN 205430223 U CN205430223 U CN 205430223U
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Abstract
The utility model relates to a general receipts of wide band section radio frequency / bill unit suitable for radio station, it constitutes a whole to combine together including wide band section general radio frequency front end module (1), wide band section radio frequency receiver front end module (2), broadband radio frequency power amplifier circuit module (3), intermediate frequency mixing filtering and amplifying circuit module (4), many bandwidth intermediate frequency filtering module (5) and IF amplifier circuit module (6), and wide band section radio frequency receiver front end module (2) is provided with wide band section radio frequency gain adjustment circuit (21), wide band section tuned radio frequency amplifier circuit (22), broadband radio frequency power amplifier circuit module (3) is provided with power amplifier front drive and impedance matching circuit (31), and power amplifier circuit (32), filter circuit (33) is matchd in output, many bandwidth intermediate frequency filtering module (5) is provided with many bandwidth filter circuit (51), gain compensating circuit (52). A general unified hardware architecture is provided for the working frequency band of difference and information modulation mode's radio station to reduce the system hardware volume, the lowering system cost.
Description
Technical field
This utility model relates to a kind of radio frequency and transmits/receives unit, and a kind of wide-band radio frequency being applicable to radio set is general transmits/receives unit.
Background technology
Along with the development of wireless communication technology, the mode of modulates information and working frequency range are all in constantly change, and single frequency band and special Wireless Telecom Equipment increasingly can not meet the needs of people.Then increasing wide-band wireless device is widely used in every field, completes the networking between different frequency range and different modulates information mode, data interaction, routing function.
Radio frequency transmits/receives unit as the core in Wireless Telecom Equipment, in order to adapt to different working frequency range and modulates information mode, the radio frequency that one system often has multiple different frequency range difference modulates information mode transmits/receives unit, system hardware often seems huge and too fat to move, and cost also remains high.
Utility model content
The purpose of this utility model is contemplated to solve the problems referred to above, it is provided that the radio frequency of a kind of general wide-band being applicable to radio set transmits/receives unit.The hardware of different frequency range and different modulates information mode can be merged into a unified hardware configuration by it, thus reduces system hardware volume, reduces system cost.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of wide-band radio frequency being applicable to radio set is general transmits/receives unit, including wide-band Versatile RF front-end module (1), wide-band receiver rf front-end module (2), wide band RF power amplifier circuit module (3), intermediate frequency mixing and filtering amplifying circuit module (4), many bandwidth intermediate frequency filtering module (5) and IF amplifier circuit module (6).Wherein:
Described wide-band receiver rf front-end module (2) is provided with wide-band rf gain and adjusts circuit (21) and wide-band tuned radio-frequency amplifying circuit (22), totally 2 part.Wherein said wide-band rf gain adjusts circuit (21) and is adjusted to suitable size in order to the radiofrequency signal come in front end；Described wide-band tuned radio-frequency amplifying circuit (22) is in order to linear amplification radiofrequency signal after filtering interfering；
Described wide band RF power amplifier circuit module (3) is provided with power amplifier front-end driven and impedance matching circuit (31), power amplifier circuit (32) and output matching filter circuit (33), totally 3 part.Wherein said power amplifier front-end driven and impedance matching circuit (31) are in order to be amplified to meet level and the input impedance matching of power amplifier that power amplifier inputs by launching signal；Described power amplifier circuit (32) in order to be amplified to suitable output by radiofrequency signal.Described output matching filter circuit (33) launches the harmonic wave of signal in order to the output matching of power amplifier and filtering.
Described many bandwidth intermediate frequency filtering module (5) are provided with many bandwidth filters circuit (51) and gain compensation circuit (52), totally 2 part.Wherein said many bandwidth filters circuit (51) filters in order to the switching between different bandwidth signal, it is ensured that signal spectrum is pure；Described gain compensation circuit (52) is in order to compensate the gain difference that each filter loss difference is brought.
The basic design philosophy of this utility model includes: the design of wide-band Versatile RF front-end, the design of wide-band receiver rf front-end module, the design of wide band RF power amplifier circuit module, the design of intermediate frequency mixing and filtering amplification circuit module, the design of many bandwidth intermediate frequency filtering module, IF amplifier circuit design.
1, wide-band Versatile RF front-end module design: conventional radio frequency front-end circuit transmits/receives circuit isolation general employing radio-frequency (RF) switch to carry out transmitting/receiving switching or realizing isolation by circulator, radio-frequency (RF) switch and circulator are required height, and with certain Insertion Loss, reception and launching target there is considerable influence, and this module is designed with the most reverse-biased mode of diode and realizes transmitting/receiving isolation, volume is little, and Insertion Loss is little.
2, wide-band receiver rf front-end module design: receiver rf front-end designed or for fixed-bandwidth in the past, or for fixed frequency, very flexible, work strip width.And the design uses double-tuned filter to add the structure of low-noise amplifier, in the case of significantly suppressing radio-frequency front-end interference, it is ensured that radio-frequency front-end noise coefficient is of a sufficiently low, the performance good to ensure receiver module.
3, wide band RF power amplifier circuit module design: wide band RF power amplifier working frequency range reaches 14 octaves, linearity is high, and requires that output is big.In order to reach to design requirement, the model that this utility model is selected is D1016UK power amplifier tube, have employed and recommends with negative feedback mode to improve the broadband performance of power amplifier.
4, intermediate frequency mixing and filtering amplifying circuit module design: this module uses the mode of conventional secondary mixing that radiofrequency signal is mixed an intermediate frequency, is mixed to two intermediate frequencies after filtered amplification again.
5, many bandwidth intermediate frequency filtering module design: tradition intermediate frequency filtering bandwidth ratio is more fixing, in order to adapt to the transmission requirement of different bandwidth signal, devise the flexible switching of 3 kinds of conventional bandwidth filters, and the loss between different wave filter has been done gain balance, in order to avoid affecting the performance of back-end digital sample circuit.
6, IF amplifier circuit module design: intermediate frequency receipts circuit have employed traditional VGA amplifier and realizes the regulation of signal magnitude, and medium frequency electric generating road have employed adjustable attenuator and adds amplifier, it is achieved send out the size adjustment of intermediate-freuqncy signal.
Work process of the present utility model is: when being in reception state, the signal of wide-band is through wide-band Versatile RF front-end module (1), subsequently into wide-band receiver rf front-end module (2), filtered radiofrequency signal enters after intermediate frequency mixing and filtering amplifying circuit module (4) carries out being mixed ripple and enters many bandwidth intermediate frequency filtering module (5), finally enters feeding digital back-end after IF amplifier circuit module (6) is amplified to desired value and processes.When being in emission state, the intermediate-freuqncy signal come from rear end initially enters IF amplifier circuit module (6), after filtering subsequently into many bandwidth intermediate frequency filtering module (5), after entrance intermediate frequency mixing and filtering amplifying circuit module (4) carries out mixing and filtering, finally entering wide band RF power amplifier circuit module (3), the radiofrequency signal of amplification is sent into antenna by wide-band Versatile RF front-end module 1 and is launched.
In a word, this utility model radio-frequency front-end when receiving have employed the tuning filtering device of wide-band and achieves the reception of wide-band radiofrequency signal, then coordinates rear class to receive circuit, it is achieved that high performance receiver；During transmission, have employed push-pull amplifier and add degenerative scheme and achieve in the range of wide-band, have the preferable linearity；Have employed compact structure design, ensureing that good heat radiating also has good effectiveness simultaneously；By above measure, it is achieved that radio frequency transmits/receives unit and has the features such as wide-band work, compact conformation, reliability height, good stability, function admirable.
Accompanying drawing explanation
Fig. 1 this utility model electricity theory diagram
Fig. 2 this utility model wide-band receiver rf front-end module schematic diagram
Fig. 3 this utility model wide band RF power amplifier circuit module schematic diagram
Fig. 4 this utility model many bandwidth intermediate frequency filtering module schematic diagram
Symbol description in figure
1 is wide-band Versatile RF front-end module,
2 is wide-band receiver rf front-end module,
3 is wide band RF power amplifier circuit,
4 is intermediate frequency mixing and filtering amplifying circuit module,
5 is many bandwidth intermediate frequency filtering module,
6 is IF amplifier circuit module.
21 is that wide-band rf gain adjusts circuit,
22 is wide-band tuned radio-frequency amplifying circuit,
31 is power amplifier front-end driven and impedance matching circuit,
32 is power amplifier circuit,
33 is output matching filter circuit,
51 is many bandwidth filters circuit,
52 is gain compensation circuit.
Detailed description of the invention
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, for this utility model specific embodiment.
Visible in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4: this utility model includes that wide-band Versatile RF front-end module (1), wide-band receiver rf front-end module (2), wide band RF power amplifier circuit module (3), intermediate frequency mixing and filtering amplifying circuit module (4), many bandwidth intermediate frequency filtering module (5), IF amplifier circuit module (6) combine and constitutes an entirety, wherein:
In described wide-band receiver rf front-end module (2), the 2nd foot of adjustable attenuator N2 of wide-band rf gain adjustment circuit (21) is connected with the 1st foot of the double diode N60 for limited amplitude protection, and the 2nd foot with radio-frequency (RF) switch U17 in wide-band tuned radio-frequency amplifying circuit (22) that continues is connected；And the 1st foot of radio-frequency (RF) switch U17 is connected with the 1st foot of tuning filtering device N3, and the 2nd foot of tuning filtering device N3 is connected with the 1st foot of radio-frequency (RF) switch U1, then the 3rd foot of radio-frequency (RF) switch U1 is connected with the 1st foot of low-noise amplifier N4, and then the 2nd foot of low-noise amplifier N4 is connected with the 2nd foot of radio-frequency (RF) switch U2, and the 1st foot of radio-frequency (RF) switch U2 is connected with the 1st foot of tuning filtering device N5.
nullIn described wide band RF power amplifier circuit module (3), the driving amplifier N29 outfan of power amplifier front-end driven and impedance matching circuit (31) is connected through the 1st foot of electric capacity C1 and line transformer T1，The 3rd foot ground connection of line transformer T1，2nd foot and the 4th foot indirect tunable capacitor C2，1st foot of the 2nd foot meridian capacitor C3 and line transformer T2 is connected，3rd foot of the 4th foot meridian capacitor C4 and line transformer T3 is connected，3rd foot of line transformer T2 and the 1st foot docking of line transformer T3，And be connected with electric capacity C11 through resistance R3，2nd foot of line transformer T2 docks with the 2nd foot of line transformer T3，And connect with the 4th foot of the power amplifier N1 in power amplifier circuit (32)，4th foot of line transformer T2 and the 4th foot docking of line transformer T3，And it is connected to the 5th foot of power amplifier N1，It is connected to a tunable capacitor C5 between the 4th foot of power amplifier N1 and the 5th foot，Feedback branch resistance R1、Electric capacity C6 is connected to the 1st of power amplifier N1、Between 6 feet，Feedback branch resistance R2、Electric capacity C7 is connected to the 2nd of power amplifier N1、Between 5 feet，1st foot of power amplifier N1 with output matching filter circuit (33) is connected between the 1st foot of line transformer T4 the inductance L1 that mates、Electric capacity C8；Inductance L2, the electric capacity C9 of coupling it is connected between 2nd foot and the 3rd foot of line transformer T4 of power amplifier N1；Direct current biasing inductance L3 it is connected between inductance L1, electric capacity C8；Direct current biasing inductance L4 it is connected between inductance L2, electric capacity C9；The 1st of line transformer T4, being connected to matching capacitance C10 between 3 feet, the 4th foot of line transformer T4 meets diode V1, V10, V14 simultaneously；Diode V1 meets diode V2, V4, V6, V8 simultaneously；Diode V2, V4, V6, V8 connect the input of low pass filter filter1, filter2, filter3, filter4 respectively；The outfan of low pass filter filter1, filter2, filter3, filter4 meets diode V3, V5, V7, V9 respectively and then connects with diode V19, and diode V10, series diode V11, V15 are followed by the input of low pass filter filter5, filter6 to V14 respectively；The outfan of low pass filter filter5, filter6 meets diode V12, V13 and V16, V17 respectively, and last diode V13, V17, V19 meet capacitance C12.
nullIn described many bandwidth intermediate frequency filtering module (5), the 3rd foot of radio-frequency (RF) switch U53 of gain compensation circuit (52) is connected with the 1st foot of wave filter N50，2nd foot of wave filter N50 connects the 2nd foot of radio-frequency (RF) switch U50，2nd foot of radio-frequency (RF) switch U53 connects the 1st foot of radio-frequency (RF) switch U54，3rd foot of radio-frequency (RF) switch U54 connects the 1st foot of amplifier N53，2nd foot of radio-frequency (RF) switch U54 connects the 2nd foot of amplifier N54，2nd foot of amplifier N53 connects the 2nd foot of radio-frequency (RF) switch U52 in many bandwidth filters circuit (51)，1st foot of amplifier N54 connects the 3rd foot of radio-frequency (RF) switch U52，1st foot of radio-frequency (RF) switch U52 docks with the 1st foot of radio-frequency (RF) switch U51，3rd foot of radio-frequency (RF) switch U51 connects the 2nd foot of wave filter N51，1st foot of wave filter N51 connects the 2nd foot of radio-frequency (RF) switch U55，2nd foot of radio-frequency (RF) switch U51 connects the 1st foot of wave filter N52，2nd foot of wave filter N52 connects the 3rd foot of radio-frequency (RF) switch U55，1st foot of radio-frequency (RF) switch U55 connects the 3rd foot of radio-frequency (RF) switch U50.
What deserves to be explained is the main devices model selected by this utility model: radio-frequency (RF) switch U1, U2 and U17 are HMC595E；Radio-frequency (RF) switch U50, U51, U52, U53 and U54 are MASW0178；Power amplifier N1 is D1016UK；Wave filter N3 is bounce frequency filter BCD-Y3；Low-noise amplifier N4 is WHM003；Wave filter N5 is bounce frequency filter BCD-Y5；Power amplifier N29 is RFHA1003DS；Amplifier N53 and N54 is SGA4386；Wave filter N51 is 21.4MHz crystal filter；Wave filter N52 is 21.4MHzLC wave filter；Diode N60 is BAS216.
Above example, preferred embodiment the most of the present utility model, in order to illustrate technical characteristic of the present utility model and exploitativeness；Above description, should understand and be carried out for being familiar with those skilled in the art, therefore other equivalent change completed on the premise of without departing from disclosed in this utility model or modification, should be included among right of the present utility model.
Claims (4)
1. it is applicable to that the wide-band radio frequency of radio set is general transmits/receives that unit includes wide-band Versatile RF front-end module (1), wide-band receiver rf front-end module (2), wide band RF power amplifier circuit module (3), intermediate frequency mixing and filtering amplifying circuit module (4), many bandwidth intermediate frequency filtering module (5), IF amplifier circuit module (6) combine one entirety of composition, it is characterized in that:
Described wide-band receiver rf front-end module (2) is provided with wide-band rf gain and adjusts circuit (21) and wide-band tuned radio-frequency amplifying circuit (22), totally 2 part, wherein said wide-band rf gain adjusts circuit (21) and is adjusted to suitable size in order to the radiofrequency signal come in front end, and described wide-band tuned radio-frequency amplifying circuit (22) is in order to linear amplification radiofrequency signal after filtering interfering；
Described wide band RF power amplifier circuit module (3) is provided with power amplifier front-end driven and impedance matching circuit (31), power amplifier circuit (32) and output matching filter circuit (33), totally 3 part, wherein said power amplifier front-end driven and impedance matching circuit (31) are in order to be amplified to meet level and the input impedance matching of power amplifier that power amplifier inputs by launching signal, described power amplifier circuit (32) in order to be amplified to suitable output by radiofrequency signal, described output matching filter circuit (33) launches the harmonic wave of signal in order to the output matching of power amplifier and filtering；
Described many bandwidth intermediate frequency filtering module (5) are provided with many bandwidth filters circuit (51) and gain compensation circuit (52), totally 2 part, wherein said many bandwidth filters circuit (51) filters in order to the switching between different bandwidth signal, ensureing that signal spectrum is pure, described gain compensation circuit (52) is in order to compensate the gain difference that each filter loss difference is brought.
It is applicable to that the wide-band radio frequency of radio set is general transmits/receives unit the most as claimed in claim 1, it is characterized in that:
In described wide-band receiver rf front-end module (2), the 2nd foot of adjustable attenuator N2 of wide-band rf gain adjustment circuit (21) is connected with the 1st foot of the double diode N60 for limited amplitude protection, and the 2nd foot with radio-frequency (RF) switch U17 in wide-band tuned radio-frequency amplifying circuit (22) that continues is connected；And the 1st foot of radio-frequency (RF) switch U17 is connected with the 1st foot of tuning filtering device N3, and the 2nd foot of tuning filtering device N3 is connected with the 1st foot of radio-frequency (RF) switch U1, then the 3rd foot of radio-frequency (RF) switch U1 is connected with the 1st foot of low-noise amplifier N4, and then the 2nd foot of low-noise amplifier N4 is connected with the 2nd foot of radio-frequency (RF) switch U2, and the 1st foot of radio-frequency (RF) switch U2 is connected with the 1st foot of tuning filtering device N5.
It is applicable to that the wide-band radio frequency of radio set is general transmits/receives unit the most as claimed in claim 1, it is characterized in that:
nullIn described wide band RF power amplifier circuit module (3), the driving amplifier N29 outfan of power amplifier front-end driven and impedance matching circuit (31) is connected through the 1st foot of electric capacity C1 and line transformer T1，The 3rd foot ground connection of line transformer T1，2nd foot and the 4th foot indirect tunable capacitor C2，1st foot of the 2nd foot meridian capacitor C3 and line transformer T2 is connected，3rd foot of the 4th foot meridian capacitor C4 and line transformer T3 is connected，3rd foot of line transformer T2 and the 1st foot docking of line transformer T3，And be connected with electric capacity C11 through resistance R3，2nd foot of line transformer T2 docks with the 2nd foot of line transformer T3，And connect with the 4th foot of the power amplifier N1 in power amplifier circuit (32)，4th foot of line transformer T2 and the 4th foot docking of line transformer T3，And it is connected to the 5th foot of power amplifier N1，It is connected to a tunable capacitor C5 between the 4th foot of power amplifier N1 and the 5th foot，Feedback branch resistance R1、Electric capacity C6 is connected to the 1st of power amplifier N1、Between 6 feet，Feedback branch resistance R2、Electric capacity C7 is connected to the 2nd of power amplifier N1、Between 5 feet，1st foot of power amplifier N1 with output matching filter circuit (33) is connected between the 1st foot of line transformer T4 the inductance L1 that mates、Electric capacity C8；Inductance L2, the electric capacity C9 of coupling it is connected between 2nd foot and the 3rd foot of line transformer T4 of power amplifier N1；Direct current biasing inductance L3 it is connected between inductance L1, electric capacity C8；Direct current biasing inductance L4 it is connected between inductance L2, electric capacity C9；The 1st of line transformer T4, being connected to matching capacitance C10 between 3 feet, the 4th foot of line transformer T4 meets diode V1, V10, V14 simultaneously；Diode V1 meets diode V2, V4, V6, V8 simultaneously；Diode V2, V4, V6, V8 connect the input of low pass filter filter1, filter2, filter3, filter4 respectively；The outfan of low pass filter filter1, filter2, filter3, filter4 meets diode V3, V5, V7, V9 respectively and then connects with diode V19, and diode V10, series diode V11, V15 are followed by the input of low pass filter filter5, filter6 to V14 respectively；The outfan of low pass filter filter5, filter6 meets diode V12, V13 and V16, V17 respectively, and last diode V13, V17, V19 meet capacitance C12.
It is applicable to that the wide-band radio frequency of radio set is general transmits/receives unit the most as claimed in claim 1, it is characterized in that:
nullIn described many bandwidth intermediate frequency filtering module (5), the 3rd foot of radio-frequency (RF) switch U53 of gain compensation circuit (52) is connected with the 1st foot of wave filter N50，2nd foot of wave filter N50 connects the 2nd foot of radio-frequency (RF) switch U50，2nd foot of radio-frequency (RF) switch U53 connects the 1st foot of radio-frequency (RF) switch U54，3rd foot of radio-frequency (RF) switch U54 connects the 1st foot of amplifier N53，2nd foot of radio-frequency (RF) switch U54 connects the 2nd foot of amplifier N54，2nd foot of amplifier N53 connects the 2nd foot of radio-frequency (RF) switch U52 in many bandwidth filters circuit (51)，1st foot of amplifier N54 connects the 3rd foot of radio-frequency (RF) switch U52，1st foot of radio-frequency (RF) switch U52 docks with the 1st foot of radio-frequency (RF) switch U51，3rd foot of radio-frequency (RF) switch U51 connects the 2nd foot of wave filter N51，1st foot of wave filter N51 connects the 2nd foot of radio-frequency (RF) switch U55，2nd foot of radio-frequency (RF) switch U51 connects the 1st foot of wave filter N52，2nd foot of wave filter N52 connects the 3rd foot of radio-frequency (RF) switch U55，1st foot of radio-frequency (RF) switch U55 connects the 3rd foot of radio-frequency (RF) switch U50.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979288.1U CN205430223U (en) | 2015-11-30 | 2015-11-30 | General receipts of wide band section radio frequency / bill unit suitable for radio station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979288.1U CN205430223U (en) | 2015-11-30 | 2015-11-30 | General receipts of wide band section radio frequency / bill unit suitable for radio station |
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| Publication Number | Publication Date |
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| CN205430223U true CN205430223U (en) | 2016-08-03 |
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| CN201520979288.1U Expired - Fee Related CN205430223U (en) | 2015-11-30 | 2015-11-30 | General receipts of wide band section radio frequency / bill unit suitable for radio station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281802A (en) * | 2015-11-30 | 2016-01-27 | 武汉中元通信股份有限公司 | Broad-band radio frequency universal receiving/transmitting unit suitable for radio station |
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- 2015-11-30 CN CN201520979288.1U patent/CN205430223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281802A (en) * | 2015-11-30 | 2016-01-27 | 武汉中元通信股份有限公司 | Broad-band radio frequency universal receiving/transmitting unit suitable for radio station |
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Granted publication date: 20160803 |