CN116953622A - Millimeter wave multichannel amplitude-phase control multifunctional chip - Google Patents
Millimeter wave multichannel amplitude-phase control multifunctional chip Download PDFInfo
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- CN116953622A CN116953622A CN202311222412.5A CN202311222412A CN116953622A CN 116953622 A CN116953622 A CN 116953622A CN 202311222412 A CN202311222412 A CN 202311222412A CN 116953622 A CN116953622 A CN 116953622A
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- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 14
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- 230000010363 phase shift Effects 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/16—Networks for phase shifting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a millimeter wave multichannel amplitude-phase control multifunctional chip, which comprises a 1-minute 4 power distributor, four transceiving channels, a control temperature compensation module and an amplifier temperature compensation module, wherein each transceiving channel comprises a receiving link, a transmitting link and a transceiving switch, 4 output ends of the 1-minute 4 power distributor are respectively connected to input ends of the four transceiving switches, and the control temperature compensation module is used for performing temperature compensation on a first digital control phase shifter, a second digital control phase shifter, a first digital control attenuator and a second digital control attenuator of the receiving link and the transmitting link; the amplifier temperature compensation module is used for performing temperature compensation on the first to fourth amplifiers of the receiving link and the transmitting link. The invention can realize high phase-shifting precision, high attenuation precision, low attenuation, phase-shifting precision temperature sensitivity and low gain temperature sensitivity of the millimeter wave phased array transceiver, and improve the system reliability and stability of the millimeter wave phased array transceiver.
Description
Technical Field
The invention belongs to the technical field of millimeter wave phased array radars, and particularly relates to a millimeter wave multichannel amplitude and phase control multifunctional chip.
Background
The phase control transceiver is widely applied to various radar systems, has the main functions of receiving and transmitting radio frequency signals, and then performing amplitude adjustment, phase adjustment and signal amplification so as to realize beam forming, and is an important module for influencing the performance of the radar system. The types of the phase control transceivers are various, the specific implementation modes are different, and for millimeter wave frequency bands, an amplifier, a numerical control phase shifter and a numerical control attenuator are mainly adopted to process radio frequency signals, and then the signals with adjusted phases are transmitted to an antenna unit. As the prior art, CN217159703U discloses a low noise phased array transceiver component receiving link architecture, and CN207099070U discloses a wideband microwave amplitude phase control transceiver multifunctional chip applied to a phased array system. The main indexes of the phase control transceiver are phase shift precision, attenuation precision, gain and the like, but the existing millimeter wave phased array transceiver has the problems of poor phase shift precision, poor attenuation precision, sensitive attenuation and phase shift precision temperature and sensitive gain temperature.
Disclosure of Invention
The invention aims to provide a millimeter wave multichannel amplitude-phase control multifunctional chip which can solve the problems of poor phase shifting precision, poor attenuation precision, sensitive temperature of attenuation and phase shifting precision and sensitive gain temperature of a millimeter wave phased array transceiver.
In order to achieve the above object, one aspect of the present invention provides a millimeter wave multichannel amplitude-phase control multifunctional chip, which comprises a 1 min 4 power divider, four transceiver channels, a control temperature compensation module and an amplifier temperature compensation module, wherein each transceiver channel comprises a receiving link, a transmitting link and a transceiver switch, 4 output ends of the 1 min 4 power divider are respectively connected to input ends of the transceiver switches of the four transceiver channels, the receiving link comprises a radio frequency signal input end, a first amplifier, a first numerical control phase shifter, a second amplifier and a first numerical control attenuator, the transmitting link comprises a second numerical control attenuator, a third amplifier, a second numerical control phase shifter, a fourth amplifier and a radio frequency signal output end,
the radio frequency signal input end is connected with the input end of the first amplifier, the output end of the first amplifier is connected with the input end of the first numerical control phase shifter, the output end of the first numerical control phase shifter is connected with the input end of the second amplifier, the output end of the second amplifier is connected with the input end of the first numerical control attenuator, and the output end of the first numerical control attenuator is connected with the first port of the receiving-transmitting switch;
the second port of the receiving-transmitting switch is connected with the input end of a second digital attenuator, the output end of the second digital attenuator is connected with the input end of a third amplifier, the output end of the third amplifier is connected with the input end of a second digital phase shifter, the output end of the second digital phase shifter is connected with the input end of a fourth amplifier, and the output end of the fourth amplifier is connected with the output end of a radio frequency signal;
the control temperature compensation module is connected with the first numerical control phase shifter, the second numerical control phase shifter, the first numerical control attenuator and the second numerical control attenuator and is used for carrying out temperature compensation on the first numerical control phase shifter, the second numerical control phase shifter, the first numerical control attenuator and the second numerical control attenuator;
the amplifier temperature compensation module is connected with the first to fourth amplifiers and is used for performing temperature compensation on the first to fourth amplifiers.
Preferably, the first numerical control phase shifter and the second numerical control phase shifter have the same structure and respectively comprise a 180-degree phase shifting unit, a 90-degree phase shifting unit, a 45-degree phase shifting unit, a 5.625-degree phase shifting unit, an 11.25-degree phase shifting unit and a 22.5-degree phase shifting unit which are sequentially connected;
the control temperature compensation module is connected with the 5.625-degree phase shifting unit, the 11.25-degree phase shifting unit, the 22.5-degree phase shifting unit, the 45-degree phase shifting unit, the 90-degree phase shifting unit and the 180-degree phase shifting unit;
the 180-degree phase shifting unit is of a high-low pass filter structure; the 90-degree phase shifting unit and the 45-degree phase shifting unit are of T-shaped structures; the 22.5-degree phase shifting unit, the 11.25-degree phase shifting unit and the 5.625-degree phase shifting unit are of pi-type structures.
Preferably, the first digital control attenuator has the same structure as the second digital control attenuator, and comprises a 16dB attenuation unit, a 0.5dB attenuation unit, a 1dB attenuation unit, a 2dB attenuation unit, a 4dB attenuation unit and an 8dB attenuation unit which are sequentially connected;
the control temperature compensation module is connected with the 16dB attenuation unit, the 0.5dB attenuation unit, the 1dB attenuation unit, the 2dB attenuation unit, the 4dB attenuation unit and the 8dB attenuation unit;
the 16dB attenuation unit and the 8dB attenuation unit are of pi-type structures; the 4dB attenuation unit, the 2dB attenuation unit, the 1dB attenuation unit and the 0.5dB attenuation unit are of T-shaped structures.
Preferably, the first to fourth amplifiers have the same structure and respectively comprise a first-stage amplifier, a coupling capacitor and a second-stage amplifier;
the first-stage amplifier and the second-stage amplifier are both common-source common-gate amplifiers, the input end of the first-stage amplifier is used as the input ends of the first-fourth amplifiers, the output end of the first-stage amplifier is connected with the input end of the second-stage amplifier through a coupling capacitor, the output end of the second-stage amplifier is used as the output ends of the first-fourth amplifiers,
the amplifier temperature compensation module is connected with the first-stage amplifier and the second-stage amplifier and is used for providing bias for the first-stage amplifier and the second-stage amplifier.
Preferably, the transceiver switch comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first transmission line, a second transmission line, an inverter, a first port, a second port and a common port;
a collector of the first transistor, a collector of the second transistor the second end of the first transmission line is connected with the first port; the collector of the third transistor, and the second end of the second transmission line are connected to the second port; an emitter of the first transistor, an emitter of the second transistor, an emitter of the third transistor, and an emitter of the fourth transistor are connected to ground; the second end of the first resistor is connected with the base electrode of the first transistor; the second end of the second resistor is connected with the base electrode of the second transistor; the second end of the third resistor is connected with the base electrode of the third transistor; the second end of the fourth resistor is connected with the base electrode of the fourth transistor; the first end of the first resistor, the first end of the second resistor and the first end of the inverter are connected with control voltage; the first end of the third resistor and the first end of the fourth resistor are connected with the second end of the inverter; the first end of the first transmission line and the first end of the second transmission line are connected with the common port.
Preferably, the amplifier temperature compensation module comprises a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, and a bias port;
the collector of the fifth transistor, the base of the fifth transistor, the first end of the fifth resistor and the first end of the seventh resistor are connected with a power supply; an emitter of the fifth transistor is connected with a first end of the sixth resistor; the second end of the fifth resistor is connected with the first end of the sixth transistor; the second end of the seventh resistor is connected with the collector electrode of the eighth transistor; the base electrode of the sixth transistor and the second end of the sixth resistor are connected with the base electrode of the eighth transistor; an emitter of the sixth transistor is connected with a collector of the seventh transistor; the emitter of the eighth transistor and the second end of the eighth resistor are connected with the bias port; the first end of the eighth resistor is connected with the base electrode of the seventh transistor; the emitter of the seventh transistor is connected to ground.
Preferably, the control temperature compensation module comprises a band gap reference module, a PTAT current generation module, an enabling control module, a ninth transistor and a ninth resistor;
the power end of the band gap reference module and the power end of the PTAT current generation module are connected with a power supply; the input end of the band gap reference module and the grid electrode of the ninth transistor are respectively connected with the first output end and the second output end of the enabling control module; the input end of the enabling control module is connected with an enabling signal; the output end of the PTAT current generation module is connected with the source electrode of the ninth transistor; the drain electrode of the ninth transistor and the first end of the ninth resistor are connected with the output end of the temperature compensation control module; the second terminal of the ninth resistor is connected to ground.
According to the millimeter wave multichannel amplitude and phase control multifunctional chip, the high phase shifting precision, the high attenuation precision, the low attenuation and phase shifting precision temperature sensitivity and the low gain temperature sensitivity of the millimeter wave phased array transceiver can be realized, and the system reliability and the stability of the millimeter wave phased array transceiver are improved.
Drawings
For a clearer description of the technical solutions of the present invention, the following description will be given with reference to the attached drawings used in the description of the embodiments of the present invention, it being obvious that the attached drawings in the following description are only some embodiments of the present invention, and that other attached drawings can be obtained by those skilled in the art without the need of inventive effort:
fig. 1 is a schematic structural diagram of a millimeter wave multichannel amplitude-phase control multifunctional chip according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a digitally controlled phase shifter according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a digitally controlled attenuator according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of an amplifier according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a transceiver switch according to an embodiment of the present invention.
Fig. 6 is a circuit diagram of an amplifier temperature compensation module according to one embodiment of the invention.
Fig. 7 is a schematic structural diagram of a temperature compensation control module according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a millimeter wave multichannel amplitude-phase control multifunctional chip which can be applied to a millimeter wave phased array radar receiving and transmitting system. Fig. 1 is a schematic structural diagram of a millimeter wave multichannel amplitude-phase control multifunctional chip according to an embodiment of the present invention. As shown in fig. 1, the millimeter wave multichannel amplitude-phase control multifunctional chip of the embodiment of the invention comprises a 1-minute 4-power distributor, four transceiver channels, a control temperature compensation module and an amplifier temperature compensation module, wherein each transceiver channel comprises a receiving link, a transmitting link and a transceiver switch. The 4 output ends of the 1-division 4 power divider are respectively connected to the input ends of the receiving and transmitting switches of the four receiving and transmitting channels, the receiving link comprises a radio frequency signal input end, a first amplifier, a first numerical control phase shifter, a second amplifier and a first numerical control attenuator, and the transmitting link comprises a second numerical control attenuator, a third amplifier, a second numerical control phase shifter, a fourth amplifier and a radio frequency signal output end.
The radio frequency signal input end is connected with the input end of the first amplifier, the output end of the first amplifier is connected with the input end of the first numerical control phase shifter, the output end of the first numerical control phase shifter is connected with the input end of the second amplifier, the output end of the second amplifier is connected with the input end of the first numerical control attenuator, and the output end of the first numerical control attenuator is connected with the first port of the receiving-transmitting switch; the second port of the receiving-transmitting switch is connected with the input end of the second digital attenuator, the output end of the second digital attenuator is connected with the input end of the third amplifier, the output end of the third amplifier is connected with the input end of the second digital phase shifter, the output end of the second digital phase shifter is connected with the input end of the fourth amplifier, and the output end of the fourth amplifier is connected with the output end of the radio frequency signal.
The control temperature compensation module is connected with the first numerical control phase shifter, the second numerical control phase shifter, the first numerical control attenuator and the second numerical control attenuator and is used for carrying out temperature compensation on the first numerical control phase shifter, the second numerical control phase shifter, the first numerical control attenuator and the second numerical control attenuator; the amplifier temperature compensation module is connected with the first to fourth amplifiers and is used for performing temperature compensation on the first to fourth amplifiers.
The first and second digitally controlled phase shifters are broadband passive phase shifters with temperature compensation, and the first and second digitally controlled phase shifters are identical in structure and are therefore also referred to below as digitally controlled phase shifters. Fig. 2 is a block diagram of a digitally controlled phase shifter according to an embodiment of the present invention. As shown in fig. 2, the numerical control phase shifter comprises a 180-degree phase shifting unit, a 90-degree phase shifting unit, a 45-degree phase shifting unit, a 5.625-degree phase shifting unit, an 11.25-degree phase shifting unit and a 22.5-degree phase shifting unit which are sequentially connected; each phase shifting unit is of a single-ended input and single-ended output structure, millimeter wave signals are input through an input port of the 180-degree phase shifting unit, and output through an output port of the 22.5-degree phase shifting unit; the control temperature compensation module is connected with the 5.625-degree phase shifting unit, the 11.25-degree phase shifting unit, the 22.5-degree phase shifting unit, the 45-degree phase shifting unit, the 90-degree phase shifting unit and the 180-degree phase shifting unit; the 180-degree phase shifting unit adopts a high-low pass filter structure; the 90-degree phase shifting unit and the 45-degree phase shifting unit adopt T-shaped structures; the 22.5-degree phase shifting unit, the 11.25-degree phase shifting unit and the 5.625-degree phase shifting unit adopt pi-type structures. The numerical control phase shifter of the embodiment of the invention can improve the working bandwidth of the phase shifter, reduce the temperature sensitivity of the phase shifter and improve the reliability of the phase shifter on the premise of ensuring high phase shifting precision.
The first and second digitally controlled attenuators are broadband passive attenuators with temperature compensation, and are identical in construction and are therefore also referred to below collectively as digitally controlled attenuators. Fig. 3 is a block diagram of a digitally controlled attenuator according to an embodiment of the present invention. As shown in fig. 3, the digital control attenuator comprises a 16dB attenuation unit, a 0.5dB attenuation unit, a 1dB attenuation unit, a 2dB attenuation unit, a 4dB attenuation unit and an 8dB attenuation unit which are sequentially connected; each attenuation unit is of a single-ended input and single-ended output structure, millimeter wave signals are input by an input port of the 16dB attenuation unit, and output by an output port of the 8dB attenuation unit; the control temperature compensation module is connected with the 16dB attenuation unit, the 0.5dB attenuation unit, the 1dB attenuation unit, the 2dB attenuation unit, the 4dB attenuation unit and the 8dB attenuation unit through signal lines; wherein the 16dB attenuation unit and the 8dB attenuation unit adopt pi-type structures; the 4dB attenuation unit, the 2dB attenuation unit, the 1dB attenuation unit and the 0.5dB attenuation unit adopt T-shaped structures. The numerical control attenuator of the embodiment of the invention can improve the working bandwidth of the attenuator, reduce the temperature sensitivity of the attenuator and improve the reliability of the attenuator on the premise of ensuring high attenuation precision.
The first to fourth amplifiers are amplifiers with temperature compensation, and the first to fourth amplifiers have the same configuration, and are therefore also referred to as amplifiers hereinafter. Fig. 4 is a schematic diagram of an amplifier according to an embodiment of the present invention. As shown in fig. 4, the amplifier includes a first stage amplifier, a second stage amplifier, and a coupling capacitor; the first-stage amplifier and the second-stage amplifier are in the form of a common-source common-gate amplifier, the input end of the first-stage amplifier is used as the input end of the amplifier, the output end of the first-stage amplifier is connected with the input end of the second-stage amplifier after passing through a coupling capacitor, and the output end of the second-stage amplifier is used as the output end of the amplifier. The amplifier temperature compensation module is connected with the first-stage amplifier and the second-stage amplifier and is used for providing bias for the first-stage amplifier and the second-stage amplifier. And the two-stage amplifier is respectively added with an amplifier temperature compensation module to provide bias for the amplifier, so that the temperature sensitivity of the amplifier is effectively reduced, and the gain fluctuation of the amplifier at different temperatures is reduced.
Fig. 5 is a schematic structural diagram of a transceiver switch according to an embodiment of the present invention. As shown in fig. 5, the transceiver switch includes a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first transmission line L1, a second transmission line L2, an inverter, a first port OUT1, a second port OUT2, and a common port; the collector of the first transistor Q1, the collector of the second transistor Q2, and the second end of the first transmission line L1 are connected with the first port OUT 1; the collector of the third transistor Q3, the collector of the fourth transistor Q4, and the second terminal of the second transmission line L2 are connected to the second port OUT 2; the emitter of the first transistor Q1, the emitter of the second transistor Q2, the emitter of the third transistor Q3, and the emitter of the fourth transistor Q4 are connected to ground; the second end of the first resistor R1 is connected with the base electrode of the first transistor Q1; the second end of the second resistor R2 is connected with the base electrode of the second transistor Q2; the second end of the third resistor R3 is connected with the base electrode of the third transistor Q3; the second end of the fourth resistor R4 is connected with the base electrode of the fourth transistor Q4; the first end of the first resistor R1, the first end of the second resistor R2 and the first end of the inverter are connected with the control voltage VB; the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected with the second end of the inverter; the first end of the first transmission line L1 and the first end of the second transmission line L2 are connected to a common port. Therefore, the switching of signals of the first port OUT1 and the second port OUT2 of the transceiver switch is realized, high turn-off isolation and low loss are ensured, and the reliability of the chip is improved.
Fig. 6 is a circuit diagram of an amplifier temperature compensation module according to one embodiment of the invention. As shown in fig. 6, the amplifier temperature compensation module includes a fifth transistor Q5, a sixth transistor Q6, a seventh transistor Q7, an eighth transistor Q8, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a bias port Vbias; the collector of the fifth transistor Q5, the base of the fifth transistor Q5, the first end of the fifth resistor R5, and the first end of the seventh resistor R7 are connected to the power supply VDD; an emitter of the fifth transistor Q5 is connected to a first end of the sixth resistor R6; a second end of the fifth resistor R5 is connected with a first end of the sixth transistor Q6; a second end of the seventh resistor R7 is connected with a collector electrode of the eighth transistor Q8; the base of the sixth transistor Q6 and the second end of the sixth resistor R6 are connected with the base of the eighth transistor Q8; an emitter of the sixth transistor Q6 is connected to a collector of the seventh transistor Q7; an emitter of the eighth transistor Q8 and a second end of the eighth resistor R8 are connected to the bias port Vbias; a first end of the eighth resistor R8 is connected with the base electrode of the seventh transistor Q7; the emitter of the seventh transistor Q7 is connected to ground. Therefore, the voltage value of the Bias port Bias rises along with the rise of temperature, the Bias port Bias is connected with the amplifier, the gain of the amplifier reduced due to the rise of temperature is compensated, the temperature sensitivity of the amplifier is reduced, and the gain fluctuation of the amplifier at different temperatures is reduced.
Fig. 7 is a schematic structural diagram of a temperature compensation control module according to an embodiment of the present invention. As shown in fig. 7, the control temperature compensation module includes a bandgap reference module, a PTAT (proportional to absolute temperature ) current generation module, an enable control module, a ninth transistor Q9, a ninth resistor R9; the power supply end of the band gap reference module and the power supply end of the PTAT current generation module are connected with a power supply VDD; the input end of the band gap reference module and the grid electrode of the ninth transistor Q9 are respectively connected with the first output end and the second output end of the enabling control module; the input end of the enabling control module is connected with an enabling signal EN; the output end of the PTAT current generation module is connected with the source electrode of the ninth transistor Q9; the drain electrode of the ninth transistor Q9 and the first end of the ninth resistor R9 are connected with the output end OUT3 of the control temperature compensation module; the second terminal of the ninth resistor R9 is connected to ground. The control temperature compensation module can generate current which changes positively along with temperature through the PTAT current generation module, the current outputs voltage which changes positively along with temperature at the output end OUT3 under the action of the ninth resistor R9, and the voltage is used as the power supply voltage of the numerical control phase shifter and the numerical control attenuator, so that the temperature sensitivity of the phase shifting precision and the attenuation precision is reduced.
The millimeter wave multichannel amplitude-phase control multifunctional chip of the embodiment of the invention has the advantages that: the numerical control phase shifter with temperature compensation can reduce the phase drift problem caused by process deviation, improve the phase shifting precision and additional amplitude modulation, and reduce the temperature sensitivity of the phase shifting precision; the numerical control attenuator with temperature compensation improves the attenuation precision and additional phase modulation, and reduces the temperature sensitivity of the attenuation precision; the temperature compensation amplifier effectively reduces the temperature sensitivity of the amplifier, reduces the gain fluctuation of the amplifier at different temperatures, ensures the temperature sensitivity of the millimeter wave phased array transceiver with high phase-shifting precision, high attenuation precision, low attenuation and phase-shifting precision and low gain temperature sensitivity by adopting the innovative scheme of three key modules, and improves the system reliability and stability of the millimeter wave phased array transceiver.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (7)
1. The millimeter wave multichannel amplitude-phase control multifunctional chip is characterized by comprising a 1-minute 4 power distributor, four transceiving channels, a control temperature compensation module and an amplifier temperature compensation module, wherein each transceiving channel comprises a receiving link, a transmitting link and a transceiving switch, 4 output ends of the 1-minute 4 power distributor are respectively connected to input ends of the transceiving switches of the four transceiving channels, the receiving link comprises a radio frequency signal input end, a first amplifier, a first numerical control phase shifter, a second amplifier and a first numerical control attenuator, the transmitting link comprises a second numerical control attenuator, a third amplifier, a second numerical control phase shifter, a fourth amplifier and a radio frequency signal output end,
the radio frequency signal input end is connected with the input end of the first amplifier, the output end of the first amplifier is connected with the input end of the first numerical control phase shifter, the output end of the first numerical control phase shifter is connected with the input end of the second amplifier, the output end of the second amplifier is connected with the input end of the first numerical control attenuator, and the output end of the first numerical control attenuator is connected with the first port of the receiving-transmitting switch;
the second port of the receiving-transmitting switch is connected with the input end of a second digital attenuator, the output end of the second digital attenuator is connected with the input end of a third amplifier, the output end of the third amplifier is connected with the input end of a second digital phase shifter, the output end of the second digital phase shifter is connected with the input end of a fourth amplifier, and the output end of the fourth amplifier is connected with the output end of a radio frequency signal;
the control temperature compensation module is connected with the first numerical control phase shifter, the second numerical control phase shifter, the first numerical control attenuator and the second numerical control attenuator and is used for carrying out temperature compensation on the first numerical control phase shifter, the second numerical control phase shifter, the first numerical control attenuator and the second numerical control attenuator;
the amplifier temperature compensation module is connected with the first to fourth amplifiers and is used for performing temperature compensation on the first to fourth amplifiers.
2. The millimeter wave multichannel amplitude and phase control multifunctional chip of claim 1, wherein the first numerical control phase shifter and the second numerical control phase shifter have the same structure and respectively comprise a 180-degree phase shifting unit, a 90-degree phase shifting unit, a 45-degree phase shifting unit, a 5.625-degree phase shifting unit, a 11.25-degree phase shifting unit and a 22.5-degree phase shifting unit which are connected in sequence;
the control temperature compensation module is connected with the 5.625-degree phase shifting unit, the 11.25-degree phase shifting unit, the 22.5-degree phase shifting unit, the 45-degree phase shifting unit, the 90-degree phase shifting unit and the 180-degree phase shifting unit;
the 180-degree phase shifting unit is of a high-low pass filter structure; the 90-degree phase shifting unit and the 45-degree phase shifting unit are of T-shaped structures; the 22.5-degree phase shifting unit, the 11.25-degree phase shifting unit and the 5.625-degree phase shifting unit are of pi-type structures.
3. The millimeter wave multichannel amplitude-phase control multifunctional chip according to claim 2, wherein the first digital control attenuator and the second digital control attenuator have the same structure and respectively comprise a 16dB attenuation unit, a 0.5dB attenuation unit, a 1dB attenuation unit, a 2dB attenuation unit, a 4dB attenuation unit and an 8dB attenuation unit which are sequentially connected;
the control temperature compensation module is connected with the 16dB attenuation unit, the 0.5dB attenuation unit, the 1dB attenuation unit, the 2dB attenuation unit, the 4dB attenuation unit and the 8dB attenuation unit;
the 16dB attenuation unit and the 8dB attenuation unit are of pi-type structures; the 4dB attenuation unit, the 2dB attenuation unit, the 1dB attenuation unit and the 0.5dB attenuation unit are of T-shaped structures.
4. The millimeter wave multichannel amplitude-phase control multifunctional chip of claim 3, wherein the first to fourth amplifiers have the same structure and respectively comprise a first-stage amplifier, a coupling capacitor and a second-stage amplifier;
the first-stage amplifier and the second-stage amplifier are both common-source common-gate amplifiers, the input end of the first-stage amplifier is used as the input ends of the first-fourth amplifiers, the output end of the first-stage amplifier is connected with the input end of the second-stage amplifier through a coupling capacitor, the output end of the second-stage amplifier is used as the output ends of the first-fourth amplifiers,
the amplifier temperature compensation module is connected with the first-stage amplifier and the second-stage amplifier and is used for providing bias for the first-stage amplifier and the second-stage amplifier.
5. The millimeter wave multichannel amplitude and phase control multifunctional chip of any of claims 1-4, wherein the transceiver switch comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first transmission line, a second transmission line, an inverter, a first port, a second port, a common port;
the collector of the first transistor, the collector of the second transistor and the second end of the first transmission line are connected with the first port; the collector of the third transistor, the collector of the fourth transistor and the second end of the second transmission line are connected with the second port; an emitter of the first transistor, an emitter of the second transistor, an emitter of the third transistor, and an emitter of the fourth transistor are connected to ground; the second end of the first resistor is connected with the base electrode of the first transistor; the second end of the second resistor is connected with the base electrode of the second transistor; the second end of the third resistor is connected with the base electrode of the third transistor; the second end of the fourth resistor is connected with the base electrode of the fourth transistor; the first end of the first resistor, the first end of the second resistor and the first end of the inverter are connected with control voltage; the first end of the third resistor and the first end of the fourth resistor are connected with the second end of the inverter; the first end of the first transmission line and the first end of the second transmission line are connected with the common port.
6. The millimeter wave multichannel amplitude and phase control multifunctional chip of any of claims 1-4, wherein the amplifier temperature compensation module comprises a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a bias port;
the collector of the fifth transistor, the base of the fifth transistor, the first end of the fifth resistor and the first end of the seventh resistor are connected with a power supply; an emitter of the fifth transistor is connected with a first end of the sixth resistor; the second end of the fifth resistor is connected with the first end of the sixth transistor; the second end of the seventh resistor is connected with the collector electrode of the eighth transistor; the base electrode of the sixth transistor and the second end of the sixth resistor are connected with the base electrode of the eighth transistor; an emitter of the sixth transistor is connected with a collector of the seventh transistor; the emitter of the eighth transistor and the second end of the eighth resistor are connected with the bias port; the first end of the eighth resistor is connected with the base electrode of the seventh transistor; the emitter of the seventh transistor is connected to ground.
7. The millimeter wave multichannel amplitude and phase control multifunctional chip of any of claims 1-4, wherein said control temperature compensation module comprises a bandgap reference module, a PTAT current generation module, an enable control module, a ninth transistor, a ninth resistor;
the power end of the band gap reference module and the power end of the PTAT current generation module are connected with a power supply; the input end of the band gap reference module and the grid electrode of the ninth transistor are respectively connected with the first output end and the second output end of the enabling control module; the input end of the enabling control module is connected with an enabling signal; the output end of the PTAT current generation module is connected with the source electrode of the ninth transistor; the drain electrode of the ninth transistor and the first end of the ninth resistor are connected with the output end of the temperature compensation control module; the second terminal of the ninth resistor is connected to ground.
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| CN202311222412.5A CN116953622A (en) | 2023-09-21 | 2023-09-21 | Millimeter wave multichannel amplitude-phase control multifunctional chip |
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| CN202311222412.5A CN116953622A (en) | 2023-09-21 | 2023-09-21 | Millimeter wave multichannel amplitude-phase control multifunctional chip |
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