CN205280927U - Miniaturization and high isolating device of multichannel ultra wide band receiving and dispatching passageway - Google Patents
Miniaturization and high isolating device of multichannel ultra wide band receiving and dispatching passageway Download PDFInfo
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Abstract
The utility model provides a miniaturization and high isolating device of multichannel ultra wide band receiving and dispatching passageway, by in S and C1 and the C2 frequency channel under variable frequency device, S and C1 and the C2 frequency channel variable frequency device, S and C1 and C2 local oscillator signal generator, the basis of reference source four bibliographic categories divide and form. The utility model provides a based on the miniaturized send -receiver device of the ultra wide band of microwave multiply wood design, choose for use the design of high -performance multiply wood can realize that radiofrequency signal's route is the shortest, avoid the mutual interference between the signal, the adoption switch realizes to the receiving and dispatching application of microwave signal that high isolation of receiving and dispatching passageway is designed, through reasonable layout, choose small -size connector for use, solve ultra wide band multichannel interval deviation, bulky scheduling problem, choose for use functional low pass filter to carry out filtering to the baseband signal of input or output, the revealing of suppression harmonic that can be fine and local oscillator signal. Through above technical scheme, realized ultrabroad band, miniaturization, high integration, possess characteristics such as receiving and dispatching timesharing, high isolation, commonality.
Description
Technical field
This utility model relates to miniaturization and the high isolation device of a kind of multichannel ultra broadband transceiver channel, belongs to the technical field of wideband radar receive-transmit system.
Background technology
The microwave transceiver device of miniaturization is the important component part of contemporary electronic systems. Along with developing rapidly of wireless communication technology, microwave system is proposed significantly high requirement in miniaturization, high-performance and high reliability. Ultra broadband miniaturization R-T unit based on microwave multi-layer boards design, adopt microwave signal transmitting-receiving Time-sharing control, by rational deployment, select small-sized connector, solve ultra broadband multichannel interval deviation, bulky while, also ensure that the concordance in each inter-channel level, phase place. Ultra broadband R-T unit domestic at present will receive CU channel unit and separate design with launching CU channel unit, connector connects complexity, volume is unfavorable for more greatly the system integration, and channel spacing is less desirable from indexs such as, inband flatness, it is impossible to adapt to the requirement of missile-borne lighting, miniaturization.
Utility model content
This utility model solve the technical problem that for: overcome prior art not enough, miniaturization and the high isolation device of a kind of multichannel ultra broadband transceiver channel are provided, achieve ultrabroad band, miniaturization, high integration, possess the features such as transmitting-receiving timesharing, high isolation, versatility.
The technical scheme that this utility model solves is: the miniaturization of a kind of multichannel ultra broadband transceiver channel and high isolation device, including S and C1 and C2 frequency range means of upconversion, S and C1 and C2 frequency range down-conversion device, S and C1 and C2 local oscillation signal generator, basis reference source;
S and C1 and C2 frequency range means of upconversion, including: S frequency range upconverter, C1 frequency range upconverter, C2 frequency range upconverter, power splitter 1, power splitter 2;
S frequency range means of upconversion, including: wave filter 1, wave filter 2, orthogonal mixer 1, wave filter 3;
C1 frequency range means of upconversion, including: wave filter 4, wave filter 5, orthogonal mixer 2, wave filter 6;
C2 frequency range means of upconversion, including: wave filter 7, wave filter 8, orthogonal mixer 3, wave filter 9;
S and C1 and C2 frequency range down-conversion device, including: S frequency range down-conversion device, C1 frequency range down-conversion device, C2 frequency range down-conversion device, power splitter 3;
S frequency range down-conversion device, including: wave filter 17, wave filter 18, orthogonal mixer 6, wave filter 16;
C1 frequency range down-conversion device, including: wave filter 14, wave filter 15, orthogonal mixer 5, wave filter 13;
C2 frequency range down-conversion device, including: wave filter 11, wave filter 12, orthogonal mixer 4, wave filter 10;
S and C1 and C2 local oscillation signal generator, including: S local oscillation signal generator, switch 1, C1 local oscillation signal generator, switch 2, C2 local oscillation signal generator, switch 3;
Basis reference source, including: four shunts, crystal oscillator;
The input of wave filter 1 connects the I roadbed band signal S_IIN of S frequency range means of upconversion input, the input of wave filter 2 connects the Q roadbed band signal S_QIN of S frequency range means of upconversion input, the output of wave filter 1 connects an input of orthogonal mixer 1, the output of wave filter 2 connects another input of orthogonal mixer 1, and the output of orthogonal mixer 1 connects the input of wave filter 3; The output of wave filter 3 connects an input of power splitter 1;
The input of wave filter 4 connects the I roadbed band signal C1_IIN of C1 frequency range means of upconversion input, the input of wave filter 5 connects the Q roadbed band signal C1_QIN of C1 frequency range means of upconversion input, the output of wave filter 4 connects an input of orthogonal mixer 2, the output of wave filter 5 connects another input of orthogonal mixer 2, and the output of orthogonal mixer 2 connects the input of wave filter 6; The output of wave filter 6 connects another input of power splitter 1;
The output of power splitter 1, connects an input of power splitter 2;
The input of wave filter 7 connects the I roadbed band signal C2_IIN of C2 frequency range means of upconversion input, the input of wave filter 8 connects the Q roadbed band signal C2_QIN of C2 frequency range means of upconversion input, the output of wave filter 7 connects an input of orthogonal mixer 3, the output of wave filter 8 connects another input of orthogonal mixer 3, and the output of orthogonal mixer 3 connects the input of wave filter 9; The output of wave filter 9 connects another input of power splitter 2;
The output of power splitter 2 is as the output of S and C1 and C2 frequency range means of upconversion;
The wave filter 1 of S frequency range means of upconversion and wave filter 2, after respectively first group of I, Q two-way baseband signal of input being filtered, upconverting to S frequency range by orthogonal mixer 1, after filtering again through wave filter 3, the signal S_RFOUT obtaining S frequency range exports power splitter 1; The wave filter 3 of C1 frequency range means of upconversion and wave filter 4, after respectively second group of I, Q two-way baseband signal of input being filtered, C1 frequency range is upconverted to by orthogonal mixer 2, after filtering again through wave filter 6, power splitter 1 is arrived in signal (C1_RFOUT) output obtaining C1 frequency range; The signal of S frequency range and the signal of C1 frequency range are combined into a road and are input to power splitter 2 by power splitter 1;
The wave filter 7 of C2 frequency range means of upconversion and wave filter 8, after respectively the 3rd group of I, Q two-way baseband signal of input being filtered, upconverting to C2 frequency range by orthogonal mixer 3, after filtering again through wave filter 9, the signal C2_RFOUT obtaining C2 frequency range exports power splitter 2; Power splitter 2 exports broadband signal after the signal of S frequency range and the signal of the signal of C1 frequency range, C2 frequency range are closed road;
The input of power splitter 3 connects the outside C frequency band signals C_RFIN sent here, one tunnel output of power splitter 3 connects the input of wave filter 10, the output of wave filter 10 connects the input of orthogonal mixer 4, another road output of power splitter 3 connects the input of wave filter 13, one output of orthogonal mixer 4 connects the input of wave filter 11, another output of orthogonal mixer 4 connects the input of wave filter 12, and wave filter 11, wave filter 12 are output as the orthogonal signalling of C2 frequency range I, Q two-way;
The output of wave filter 13 connects the input of orthogonal mixer 5, one output of orthogonal mixer 5 connects the output of wave filter 14, another output of orthogonal mixer 5 connects the input of wave filter 15, and wave filter 14, wave filter 15 are output as the orthogonal signalling of C1 frequency range I, Q two-way;
The input of wave filter 16 connects the outside S frequency range RF signal S _ RFIN sent here, the output of wave filter 16 connects the input of orthogonal mixer 6, one output of orthogonal mixer 6 connects the input of wave filter 17, another output of orthogonal mixer 6 connects the input of wave filter 18, and wave filter 17, wave filter 18 are output as the orthogonal signalling of S frequency range I, Q two-way;
The C frequency band signals that outside is sent here by power splitter 3 is divided into two-way respectively to the wave filter 13 in C1 frequency range down-conversion device and the wave filter 10 in C2 frequency range down-conversion device, it is input to orthogonal mixer 4 after filtering after device 10 filtering, orthogonal mixer 4 exports I, Q two-way orthogonal signalling, output C2_IOUT and C2_QOUT after filtering respectively through wave filter 11 and wave filter 12;
The C frequency band signals that power splitter 3 is sent here by C1 frequency range down-conversion device device 13 after filtering is input to orthogonal mixer 5 after filtering, orthogonal mixer 5 exports I, Q two-way orthogonal signalling, output C1_IOUT and C1_QOUT after filtering respectively through wave filter 14 and wave filter 15;
The S frequency range radiofrequency signal that outside is sent here by S frequency range down-conversion device, it is input to orthogonal mixer 6 after filtering after device 16 filtering, orthogonal mixer 6 exports I, Q two-way orthogonal signalling, output S_IOUT and S_QOUT after filtering respectively through wave filter 17 and wave filter 18;
S and C1 and C2 local oscillation signal generator, be supplied to the orthogonal mixer 4 in the orthogonal mixer 1 in S and C1 and C2 frequency range means of upconversion, orthogonal mixer 2, orthogonal mixer 3 and S and C1 and C2 frequency range down-conversion device, orthogonal mixer 5, orthogonal mixer 6 respectively through controlling switch 1, switch 2 and switch 3 by the local oscillation signal timesharing that S local oscillation signal generator, C1 local oscillation signal generator, C2 local oscillation signal generator export. When switching 1 control signal and being low (0��0.8V), the signal that S local oscillation signal generator produces is sent to the orthogonal mixer 1 in S means of upconversion by 1 port; When switching 1 control signal for high (2��5V), the signal that S local oscillation signal generator produces is sent to the orthogonal mixer 6 in S down-conversion device by 2 ports. When switching 2 control signals and being low (0��0.8V), the signal that C1 local oscillation signal generator produces is sent to the orthogonal mixer 2 in C1 means of upconversion by 1 port; When switching 2 control signals for high (2��5V), the signal that C1 local oscillation signal generator produces is sent to the orthogonal mixer 5 in C1 down-conversion device by 2 ports. When switching 3 control signals and being low (0��0.8V), the signal that C2 local oscillation signal generator produces is sent to the orthogonal mixer 3 in C2 means of upconversion by 1 port; When switching 3 control signals for high (2��5V), the signal that C2 local oscillation signal generator produces is sent to the orthogonal mixer 4 in C2 down-conversion device by 2 ports. Realized the time-sharing work of means of upconversion and down-conversion device by three on-off control, improve the isolation of transceiver channel.
Crystal oscillator in basis reference source produces reference signal, deliver to the input of four shunts, C1 local oscillation signal generator, C2 local oscillation signal generator, C3 local oscillation signal generator are delivered in four shunt Zhong tri-tunnel outputs respectively, provide reference signal respectively for three local oscillation signal generators;
Described S and C1 and C2 frequency range means of upconversion, S and C1 and C2 frequency range down-conversion device, S and C1 and C2 local oscillation signal generator, basis reference source are integrated in same structure.
Selecting microwave multi-layer boards as circuit carrier, its intensity is good, not easily deformation, and reliability is high; The high frequency plate selecting sheet material to be RO4003C, dielectric constant low (3.38), loss is little.
All of input and output baseband signal are all by being directly welded on microwave multi-layer boards by the connector MMBX of RADIALL company and external digital process device interconnecting, it is achieved that the miniaturization of product.
Wave filter 1, wave filter 2, wave filter 4, wave filter 5, wave filter 7, wave filter 8, wave filter 11, wave filter 12, wave filter 14, wave filter 15, wave filter 17, wave filter 18 all adopt the low pass filter that model is LTLP630-S3 of No.13 Inst., Chinese Electronic Science & Technology Group Co to realize.
Frequency mixer 1, frequency mixer 6 all adopt the frequency mixer that model is BW390SM4 of No.13 Inst., Chinese Electronic Science & Technology Group Co to realize; Frequency mixer 2, frequency mixer 3, frequency mixer 4, frequency mixer 5 all adopt the frequency mixer that model is HMC525LC4 of Hittite company to realize.
Switch 1, switch 2, switch 3 all adopt the switch that model is HMC849LP4CE of Hittite company to realize.
This utility model advantage compared with prior art is in that:
(1) this utility model is by rationally independently dividing chamber to design same structure, local oscillation signal generator, S frequency range means of upconversion, C1 frequency range means of upconversion, C2 frequency range means of upconversion, S frequency range down-conversion device, C1 frequency range down-conversion device, C2 frequency range down-conversion device are separated with partition wall respectively, avoid the mutual crosstalk between signal, link gain stabilization in whole working frequency range can be made, do not produce self-excitation, reliable operation, the problem solving ultra broadband multichannel interval deviation.
(2) this utility model selects microwave multi-layer boards as circuit carrier, takes 6 layers of mixed-compression board structure. Selection hard, the sheet material that thermal coefficient of expansion is little and Copper Foil adhesive ability is strong, select microwave multi-layer boards as circuit carrier, and its intensity is good, not easily deformation, and reliability is high; The high frequency plate selecting sheet material to be RO4003C, dielectric constant low (3.38), loss is little. Ground floor uses the medium thick for 0.5mm of RO4003C respectively with the second layer, layer 5 and layer 6, and dielectric constant is low, and loss is little; Remainder layer adopts the sheet material of FR-4, and its dielectric constant is 4.4. Reasonable design every layer dielectric thickness, it is prevented that warpage, finished product thickness is 1.8mm.
(3) this utility model realizes Miniaturization Design, compares existing product and selects small-sized connector MMBX. In device, all of input and output baseband signal are all by being directly welded on microwave multi-layer boards by MMBX connector and external digital process device interconnecting, it is achieved that the miniaturization of product.
(4) wave filter 1 in this utility model, wave filter 2, wave filter 4, wave filter 5, wave filter 7, wave filter 8, wave filter 11, wave filter 12, wave filter 14, wave filter 15, wave filter 17, wave filter 18 all adopt LTLP630-S3 to realize. Low pass filter LTLP630-S3 size is little, and performance is good, suppresses second harmonic more than 45dBc, and local oscillation signal suppresses more than 35dBc.
(5) this utility model frequency mixer 1, frequency mixer 6 adopt BW390SM4 to realize; Frequency mixer 2, frequency mixer 3, frequency mixer 4, frequency mixer 5 adopt HMC525LC4 to realize. Two frequency mixer operating frequency is different, and other indexs are similar, it is possible to image frequency signal is suppressed fine more than 35dBc, amplitude balance and phase equilibrium index.
(6) this utility model means of upconversion and down-conversion device share local oscillation signal generator, decrease local oscillator quantity, simplify circuit structure, greatly reduce channel power consumption. The signal of local oscillation signal generator output carries out transmitting-receiving Time-sharing control by either-or switch HMC849LP4CE, by switching switching, is effectively increased the isolation between transceiver channel. In ultra wideband frequency, the two-way output isolation of HMC849LP4CE is up to 50dB; A control line is only needed to can be achieved with the control to switch, fast response time, simple to operate.
Accompanying drawing explanation
Fig. 1 is the composition frame chart of this utility model multichannel ultra broadband transceiver channel;
Fig. 2 is this utility model on-off circuit principle schematic.
Fig. 3 is this utility model connector MMBX appearance schematic diagram.
Detailed description of the invention
Basic ideas of the present utility model are: the miniaturization of a kind of multichannel ultra broadband transceiver channel and high isolation device, are made up of S and C1 and C2 frequency range means of upconversion, S and C1 and C2 frequency range down-conversion device, S and C1 and C2 local oscillation signal generator, basis reference source four part. The utility model proposes a kind of ultra broadband miniaturization R-T unit based on microwave multi-layer boards design, select high performance multiple sliding cover to be capable of the shortest path of radiofrequency signal, it is to avoid interfering with each other between signal; Adopt the switch transmitting-receiving Time-sharing control to microwave signal, it is achieved the high isolation design of transceiver channel; By rational deployment, select small-sized connector, the problems such as solution ultra broadband multichannel interval deviation, volume are big; Select low pass filter of good performance that the baseband signal of input or output is filtered, it is possible to well to suppress the leakage of harmonic wave and local oscillation signal. By above technical scheme, it is achieved that ultrabroad band, miniaturization, high integration, possess the features such as transmitting-receiving timesharing, high isolation, versatility.
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
As shown in Figure 1, this utility model provides miniaturization and the high isolation device of a kind of multichannel ultra broadband transceiver channel, including: S and C1 and C2 frequency range means of upconversion, S and C1 and C2 frequency range down-conversion device, S and C1 and C2 local oscillation signal generator, basis reference source.
Whole device is integrated in a structure, by same structure rationally independently divides chamber design, local oscillation signal generator, S frequency range means of upconversion, C1 frequency range means of upconversion, C2 frequency range means of upconversion, S frequency range down-conversion device, C1 frequency range down-conversion device, C2 frequency range down-conversion device are separated with partition wall respectively, avoid the mutual crosstalk between signal, link gain stabilization in whole working frequency range can be made, do not produce self-excitation, reliable operation, the problem solving ultra broadband multichannel interval deviation.
Select microwave multi-layer boards as circuit carrier, take 6 layers of mixed-compression board structure. Selection hard, the sheet material that thermal coefficient of expansion is little and Copper Foil adhesive ability is strong, its intensity is good, not easily deformation, and reliability is high. Ground floor uses the medium thick for 0.5mm of RO4003C respectively with the second layer, layer 5 and layer 6, and dielectric constant is low, and loss is little; Remainder layer adopts the sheet material of FR-4, and its dielectric constant is 4.4. Reasonable design every layer dielectric thickness, it is prevented that warpage, finished product thickness is 1.8mm.
S and C1 and C2 frequency range means of upconversion, including: S frequency range upconverter, C1 frequency range upconverter, C2 frequency range upconverter, power splitter 1, power splitter 2;
S frequency range means of upconversion, including: wave filter 1, wave filter 2, orthogonal mixer 1, wave filter 3;
C1 frequency range means of upconversion, including: wave filter 4, wave filter 5, orthogonal mixer 2, wave filter 6;
C2 frequency range means of upconversion, including: wave filter 7, wave filter 8, orthogonal mixer 3, wave filter 9;
S and C1 and C2 frequency range down-conversion device, including: S frequency range down-conversion device, C1 frequency range down-conversion device, C2 frequency range down-conversion device, power splitter 3;
S frequency range down-conversion device, including: wave filter 17, wave filter 18, orthogonal mixer 6, wave filter 16;
C1 frequency range down-conversion device, including: wave filter 14, wave filter 15, orthogonal mixer 5, wave filter 13;
C2 frequency range down-conversion device, including: wave filter 11, wave filter 12, orthogonal mixer 4, wave filter 10;
S and C1 and C2 local oscillation signal generator, including: S local oscillation signal generator, switch 1, C1 local oscillation signal generator, switch 2, C2 local oscillation signal generator, switch 3;
Basis reference source, including: four shunts, crystal oscillator;
The input of wave filter 1 connects the I roadbed band signal S_IIN of S frequency range means of upconversion input, the input of wave filter 2 connects the Q roadbed band signal S_QIN of S frequency range means of upconversion input, the output of wave filter 1 connects an input of orthogonal mixer 1, the output of wave filter 2 connects another input of orthogonal mixer 1, and the output of orthogonal mixer 1 connects the input of wave filter 3; The output of wave filter 3 connects an input of power splitter 1;
The input of wave filter 4 connects the I roadbed band signal C1_IIN of C1 frequency range means of upconversion input, the input of wave filter 5 connects the Q roadbed band signal C1_QIN of C1 frequency range means of upconversion input, the output of wave filter 4 connects an input of orthogonal mixer 2, the output of wave filter 5 connects another input of orthogonal mixer 2, and the output of orthogonal mixer 2 connects the input of wave filter 6; The output of wave filter 6 connects another input of power splitter 1;
The output of power splitter 1, connects an input of power splitter 2;
The input of wave filter 7 connects the I roadbed band signal C2_IIN of C2 frequency range means of upconversion input, the input of wave filter 8 connects the Q roadbed band signal C2_QIN of C2 frequency range means of upconversion input, the output of wave filter 7 connects an input of orthogonal mixer 3, the output of wave filter 8 connects another input of orthogonal mixer 3, and the output of orthogonal mixer 3 connects the input of wave filter 9; The output of wave filter 9 connects another input of power splitter 2;
The output of power splitter 2 is as the output of S and C1 and C2 frequency range means of upconversion;
The wave filter 1 of S frequency range means of upconversion and wave filter 2, after respectively first group of I, Q two-way baseband signal of input being filtered, upconverting to S frequency range by orthogonal mixer 1, after filtering again through wave filter 3, power splitter 1 is arrived in signal (S_RFOUT) output obtaining S frequency range; The wave filter 3 of C1 frequency range means of upconversion and wave filter 4, after respectively second group of I, Q two-way baseband signal of input being filtered, C1 frequency range is upconverted to by orthogonal mixer 2, after filtering again through wave filter 6, power splitter 1 is arrived in signal (C1_RFOUT) output obtaining C1 frequency range; The signal of S frequency range and the signal of C1 frequency range are combined into a road and are input to power splitter 2 by power splitter 1;
The wave filter 7 of C2 frequency range means of upconversion and wave filter 8, after respectively the 3rd group of I, Q two-way baseband signal of input being filtered, C2 frequency range is upconverted to by orthogonal mixer 3, after filtering again through wave filter 9, power splitter 2 is arrived in signal (C2_RFOUT) output obtaining C2 frequency range; Power splitter 2 exports broadband signal after the signal of S frequency range and the signal of the signal of C1 frequency range, C2 frequency range are closed road;
The input of power splitter 3 connects the outside C frequency band signals (C_RFIN) sent here, one tunnel output of power splitter 3 connects the input of wave filter 10, the output of wave filter 10 connects the input of orthogonal mixer 4, another road output of power splitter 3 connects the input of wave filter 13, one output of orthogonal mixer 4 connects the input of wave filter 11, another output of orthogonal mixer 4 connects the input of wave filter 12, and wave filter 11, wave filter 12 are output as the orthogonal signalling of C2 frequency range I, Q two-way;
The output of wave filter 13 connects the input of orthogonal mixer 5, one output of orthogonal mixer 5 connects the output of wave filter 14, another output of orthogonal mixer 5 connects the input of wave filter 15, and wave filter 14, wave filter 15 are output as the orthogonal signalling of C1 frequency range I, Q two-way;
The input of wave filter 16 connects outside S frequency range radiofrequency signal (S_RFIN) sent here, the output of wave filter 16 connects the input of orthogonal mixer 6, one output of orthogonal mixer 6 connects the input of wave filter 17, another output of orthogonal mixer 6 connects the input of wave filter 18, and wave filter 17, wave filter 18 are output as the orthogonal signalling of S frequency range I, Q two-way;
The C frequency band signals that outside is sent here by power splitter 3 is divided into two-way respectively to the wave filter 13 in C1 frequency range down-conversion device and the wave filter 10 in C2 frequency range down-conversion device, it is input to orthogonal mixer 4 after filtering after device 10 filtering, orthogonal mixer 4 exports I, Q two-way orthogonal signalling, output C2_IOUT and C2_QOUT after filtering respectively through wave filter 11 and wave filter 12;
The C frequency band signals that power splitter 3 is sent here by C1 frequency range down-conversion device device 13 after filtering is input to orthogonal mixer 5 after filtering, orthogonal mixer 5 exports I, Q two-way orthogonal signalling, output C1_IOUT and C1_QOUT after filtering respectively through wave filter 14 and wave filter 15;
The S frequency range radiofrequency signal that outside is sent here by S frequency range down-conversion device, it is input to orthogonal mixer 6 after filtering after device 16 filtering, orthogonal mixer 6 exports I, Q two-way orthogonal signalling, output S_IOUT and S_QOUT after filtering respectively through wave filter 17 and wave filter 18;
S and C1 and C2 local oscillation signal generator, respectively through controlling switch 1, switch 2 and switch 3 are by S local oscillation signal generator, C1 local oscillation signal generator, the local oscillation signal timesharing that C2 local oscillation signal generator exports respectively is supplied to the orthogonal mixer 1 in S and C1 and C2 frequency range means of upconversion, orthogonal mixer 2, orthogonal mixer 4 in orthogonal mixer 3 and S and C1 and C2 frequency range down-conversion device, orthogonal mixer 5, orthogonal mixer 6, for orthogonal mixer 1, orthogonal mixer 2, orthogonal mixer 3, orthogonal mixer 4, orthogonal mixer 5, orthogonal mixer 6 provides local oscillation signal respectively, realize the isolation of means of upconversion and down-conversion device.
Crystal oscillator in basis reference source produces reference signal, delivers to the input of four shunts, and C1 local oscillation signal generator, C2 local oscillation signal generator, C3 local oscillation signal generator are delivered in three tunnel outputs of four shunts respectively, it is provided that reference signal;
Wave filter 1 in device, wave filter 2, wave filter 4, wave filter 5, wave filter 7, wave filter 8, wave filter 11, wave filter 12, wave filter 14, wave filter 15, wave filter 17, wave filter 18 all adopt low pass filter LTLP630-S3 to realize the filtering of DC��600MHz. Low pass filter LTLP630-S3 size is little, and performance is good, suppresses second harmonic more than 45dBc, and local oscillation signal suppresses more than 35dBc.
Frequency mixer 1, frequency mixer 6 in device adopt BW390SM4 to realize; Frequency mixer 2, frequency mixer 3, frequency mixer 4, frequency mixer 5 adopt HMC525LC4 to realize. Two frequency mixer operating frequency is different, and other indexs are similar, it is possible to image frequency signal is suppressed fine more than 35dBc, amplitude balance and phase equilibrium index. Comparing traditional frequency mixer, the frequency mixer baseband signal amplitude coincidence selected in this device is 0.3dB, and phase equalization is 4 ��, and radiofrequency signal is isolated more than 50dB with local oscillation signal.
As in figure 2 it is shown, the switch that this utility model adopts is HMC849LP4CE, this is the single-pole double-throw switch (SPDT) of a high isolation, and two-port (in diagram 1 and 2) output isolation is up to 50dB; A control line is only needed to can be achieved with the control to switch, fast response time, simple to operate; When switch controlling signal is low (0��0.8V), the signal that local oscillation signal generator produces is sent to means of upconversion by 1 port, at this moment only has means of upconversion work; When switch controlling signal is high (2��5V), the signal that local oscillation signal generator produces is sent to down-conversion device by 2 ports, at this moment only has down-conversion device work; Realize transmitting-receiving time-sharing work by the switching switched, compare traditional mode adopting two branches and substantially increase the isolation between ultra broadband transceiver channel.
Connector MMBX connector profile in device is as it is shown on figure 3, baseband signal is by the small sircle hole transmission in the middle of Fig. 3; All of input and output baseband signal are all by being directly welded on microwave multi-layer boards by connector MMBX connector and external digital process device interconnecting; Traditional design be by connector fill structurally, by cable be connected externally to, adopt connector MMBX connector decrease cable connect, it is achieved that the miniaturization of product and high reliability.
The miniaturization of a kind of multichannel ultra broadband transceiver channel of this utility model and high isolation device, being smaller in size than 120mm �� 65mm �� 20mm, transceiver channel is isolated more than 80dB, isolates more than 30dB between multiplexer channel, baseband signal amplitude coincidence is less than 0.5dB, and phase equalization is less than 4 ��. Compared to existing technology, it is achieved that ultrabroad band, miniaturization, high integration, possess transmitting-receiving timesharing, channel spacing from advantages of higher, highly versatile, compact conformation, can be widely used for wideband radar receive-transmit system.
The unspecified part of this utility model belongs to general knowledge as well known to those skilled in the art.
Claims (7)
1. the miniaturization of a multichannel ultra broadband transceiver channel and high isolation device, it is characterised in that: include S and C1 and C2 frequency range means of upconversion, S and C1 and C2 frequency range down-conversion device, S and C1 and C2 local oscillation signal generator, basis reference source;
S and C1 and C2 frequency range means of upconversion, including: S frequency range upconverter, C1 frequency range upconverter, C2 frequency range upconverter, power splitter 1, power splitter 2;
S frequency range means of upconversion, including: wave filter 1, wave filter 2, orthogonal mixer 1, wave filter 3;
C1 frequency range means of upconversion, including: wave filter 4, wave filter 5, orthogonal mixer 2, wave filter 6;
C2 frequency range means of upconversion, including: wave filter 7, wave filter 8, orthogonal mixer 3, wave filter 9;
S and C1 and C2 frequency range down-conversion device, including: S frequency range down-conversion device, C1 frequency range down-conversion device, C2 frequency range down-conversion device, power splitter 3;
S frequency range down-conversion device, including: wave filter 17, wave filter 18, orthogonal mixer 6, wave filter 16;
C1 frequency range down-conversion device, including: wave filter 14, wave filter 15, orthogonal mixer 5, wave filter 13;
C2 frequency range down-conversion device, including: wave filter 11, wave filter 12, orthogonal mixer 4, wave filter 10;
S and C1 and C2 local oscillation signal generator, including: S local oscillation signal generator, switch 1, C1 local oscillation signal generator, switch 2, C2 local oscillation signal generator, switch 3;
Basis reference source, including: four shunts, crystal oscillator;
The input of wave filter 1 connects the I roadbed band signal S_IIN of S frequency range means of upconversion input, the input of wave filter 2 connects the Q roadbed band signal S_QIN of S frequency range means of upconversion input, the output of wave filter 1 connects an input of orthogonal mixer 1, the output of wave filter 2 connects another input of orthogonal mixer 1, and the output of orthogonal mixer 1 connects the input of wave filter 3; The output of wave filter 3 connects an input of power splitter 1;
The input of wave filter 4 connects the I roadbed band signal C1_IIN of C1 frequency range means of upconversion input, the input of wave filter 5 connects the Q roadbed band signal C1_QIN of C1 frequency range means of upconversion input, the output of wave filter 4 connects an input of orthogonal mixer 2, the output of wave filter 5 connects another input of orthogonal mixer 2, and the output of orthogonal mixer 2 connects the input of wave filter 6; The output of wave filter 6 connects another input of power splitter 1;
The output of power splitter 1, connects an input of power splitter 2;
The input of wave filter 7 connects the I roadbed band signal C2_IIN of C2 frequency range means of upconversion input, the input of wave filter 8 connects the Q roadbed band signal C2_QIN of C2 frequency range means of upconversion input, the output of wave filter 7 connects an input of orthogonal mixer 3, the output of wave filter 8 connects another input of orthogonal mixer 3, and the output of orthogonal mixer 3 connects the input of wave filter 9; The output of wave filter 9 connects another input of power splitter 2;
The output of power splitter 2 is as the output of S and C1 and C2 frequency range means of upconversion;
The wave filter 1 of S frequency range means of upconversion and wave filter 2, after respectively first group of I, Q two-way baseband signal of input being filtered, upconverting to S frequency range by orthogonal mixer 1, after filtering again through wave filter 3, the signal S_RFOUT obtaining S frequency range exports power splitter 1; The wave filter 3 of C1 frequency range means of upconversion and wave filter 4, after respectively second group of I, Q two-way baseband signal of input being filtered, upconverting to C1 frequency range by orthogonal mixer 2, after filtering again through wave filter 6, the signal C1_RFOUT obtaining C1 frequency range exports power splitter 1; The signal of S frequency range and the signal of C1 frequency range are combined into a road and are input to power splitter 2 by power splitter 1;
The wave filter 7 of C2 frequency range means of upconversion and wave filter 8, after respectively the 3rd group of I, Q two-way baseband signal of input being filtered, upconverting to C2 frequency range by orthogonal mixer 3, after filtering again through wave filter 9, the signal C2_RFOUT obtaining C2 frequency range exports power splitter 2; Power splitter 2 exports broadband signal after the signal of S frequency range and the signal of the signal of C1 frequency range, C2 frequency range are closed road;
The input of power splitter 3 connects the outside C frequency band signals C_RFIN sent here, one tunnel output of power splitter 3 connects the input of wave filter 10, the output of wave filter 10 connects the input of orthogonal mixer 4, another road output of power splitter 3 connects the input of wave filter 13, one output of orthogonal mixer 4 connects the input of wave filter 11, another output of orthogonal mixer 4 connects the input of wave filter 12, and wave filter 11, wave filter 12 are output as the orthogonal signalling of C2 frequency range I, Q two-way;
The output of wave filter 13 connects the input of orthogonal mixer 5, one output of orthogonal mixer 5 connects the output of wave filter 14, another output of orthogonal mixer 5 connects the input of wave filter 15, and wave filter 14, wave filter 15 are output as the orthogonal signalling of C1 frequency range I, Q two-way;
The input of wave filter 16 connects the outside S frequency range RF signal S _ RFIN sent here, the output of wave filter 16 connects the input of orthogonal mixer 6, one output of orthogonal mixer 6 connects the input of wave filter 17, another output of orthogonal mixer 6 connects the input of wave filter 18, and wave filter 17, wave filter 18 are output as the orthogonal signalling of S frequency range I, Q two-way;
The C frequency band signals that outside is sent here by power splitter 3 is divided into two-way respectively to the wave filter 13 in C1 frequency range down-conversion device and the wave filter 10 in C2 frequency range down-conversion device, it is input to orthogonal mixer 4 after filtering after device 10 filtering, orthogonal mixer 4 exports I, Q two-way orthogonal signalling, output C2_IOUT and C2_QOUT after filtering respectively through wave filter 11 and wave filter 12;
The C frequency band signals that power splitter 3 is sent here by C1 frequency range down-conversion device device 13 after filtering is input to orthogonal mixer 5 after filtering, orthogonal mixer 5 exports I, Q two-way orthogonal signalling, output C1_IOUT and C1_QOUT after filtering respectively through wave filter 14 and wave filter 15;
The S frequency range radiofrequency signal that outside is sent here by S frequency range down-conversion device, it is input to orthogonal mixer 6 after filtering after device 16 filtering, orthogonal mixer 6 exports I, Q two-way orthogonal signalling, output S_IOUT and S_QOUT after filtering respectively through wave filter 17 and wave filter 18;
S and C1 and C2 local oscillation signal generator, respectively through controlling switch 1, switch 2 and switch 3 are by S local oscillation signal generator, C1 local oscillation signal generator, C2 local oscillation signal generator is supplied to the orthogonal mixer 1 in S and C1 and C2 frequency range means of upconversion according to the local oscillation signal timesharing that the reference signal that four shunts are sent here exports respectively, orthogonal mixer 2, orthogonal mixer 4 in orthogonal mixer 3 and S and C1 and C2 frequency range down-conversion device, orthogonal mixer 5, orthogonal mixer 6, for orthogonal mixer 1, orthogonal mixer 2, orthogonal mixer 3, orthogonal mixer 4, orthogonal mixer 5, orthogonal mixer 6 provides local oscillation signal respectively, realize the isolation of means of upconversion and down-conversion device,
Crystal oscillator in basis reference source produces reference signal, deliver to the input of four shunts, C1 local oscillation signal generator, C2 local oscillation signal generator, C3 local oscillation signal generator are delivered in four shunt Zhong tri-tunnel outputs respectively, provide reference signal respectively for S local oscillation signal generator, C1 local oscillation signal generator, C2 local oscillation signal generator.
2. the miniaturization of a kind of multichannel ultra broadband transceiver channel according to claim 1 and high isolation device, it is characterised in that: described S and C1 and C2 frequency range means of upconversion, S and C1 and C2 frequency range down-conversion device, S and C1 and C2 local oscillation signal generator, basis reference source are integrated in same structure.
3. the miniaturization of a kind of multichannel ultra broadband transceiver channel according to claim 1 and high isolation device, it is characterised in that: select microwave multi-layer boards as circuit carrier; Selecting the high frequency plate that sheet material is RO4003C of microwave multi-layer boards, the dielectric constant of this high frequency plate is 3.38.
4. the miniaturization of a kind of multichannel ultra broadband transceiver channel according to claim 1 and high isolation device, it is characterized in that: all of input and output baseband signal are all by being directly welded on microwave multi-layer boards by the connector MMBX of RADIALL company and external digital process device interconnecting, it is achieved that the miniaturization of product.
5. the miniaturization of a kind of multichannel ultra broadband transceiver channel according to claim 1 and high isolation device, it is characterised in that: wave filter 1, wave filter 2, wave filter 4, wave filter 5, wave filter 7, wave filter 8, wave filter 11, wave filter 12, wave filter 14, wave filter 15, wave filter 17, wave filter 18 all adopt the low pass filter that model is LTLP630-S3 of No.13 Inst., Chinese Electronic Science & Technology Group Co to realize.
6. the miniaturization of a kind of multichannel ultra broadband transceiver channel according to claim 1 and high isolation device, it is characterised in that: frequency mixer 1, frequency mixer 6 all adopt the frequency mixer that model is BW390SM4 of No.13 Inst., Chinese Electronic Science & Technology Group Co to realize; Frequency mixer 2, frequency mixer 3, frequency mixer 4, frequency mixer 5 all adopt the frequency mixer that model is HMC525LC4 of Hittite company to realize.
7. the miniaturization of a kind of multichannel ultra broadband transceiver channel according to claim 1 and high isolation device, it is characterised in that: switch 1, switch 2, switch 3 all adopt the switch that model is HMC849LP4CE of Hittite company to realize.
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| CN106685534A (en) * | 2016-10-30 | 2017-05-17 | 中国电子科技集团公司第二十九研究所 | Coherent light detection-based down-conversion implementation method and device |
| CN108337204A (en) * | 2017-12-26 | 2018-07-27 | 北京航天测控技术有限公司 | A kind of minimized wide-band vector signal up-converter circuit |
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| CN109274381A (en) * | 2018-11-12 | 2019-01-25 | 北京航天控制仪器研究所 | A kind of multi-frequency band mobile communication radio frequency transceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106685534A (en) * | 2016-10-30 | 2017-05-17 | 中国电子科技集团公司第二十九研究所 | Coherent light detection-based down-conversion implementation method and device |
| CN106685534B (en) * | 2016-10-30 | 2018-11-09 | 中国电子科技集团公司第二十九研究所 | A kind of down coversion implementation method and device based on relevant optical detection |
| CN108337204A (en) * | 2017-12-26 | 2018-07-27 | 北京航天测控技术有限公司 | A kind of minimized wide-band vector signal up-converter circuit |
| CN108337204B (en) * | 2017-12-26 | 2020-12-25 | 北京航天测控技术有限公司 | Miniaturized broadband vector signal up-conversion circuit |
| CN108732542A (en) * | 2018-08-01 | 2018-11-02 | 无锡华测电子***有限公司 | A kind of ULTRA-WIDEBAND RADAR receiving and transmitting front end |
| CN108732542B (en) * | 2018-08-01 | 2023-12-26 | 无锡华测电子***有限公司 | Ultra-wideband radar receiving and transmitting front end |
| CN109274381A (en) * | 2018-11-12 | 2019-01-25 | 北京航天控制仪器研究所 | A kind of multi-frequency band mobile communication radio frequency transceiver |
| CN109274381B (en) * | 2018-11-12 | 2020-06-09 | 北京航天控制仪器研究所 | Multi-frequency band mobile communication radio frequency transceiver |
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