Amplitude-phase control device with high-precision calibration and transceiver

Abstract

The invention discloses a high-precision calibration amplitude-phase control device and a transceiver, the amplitude-phase control device and the transceiver are composed of one or more circuit devices of a phase shifter, an attenuator, an amplifier, a power combiner, a power divider and a transceiving switch, and a high-precision calibration circuit of the amplitude-phase control device comprises a calibration adjustment unit. The calibration adjusting unit is composed of one or more of a resistance network, a capacitance network, an inductance network, a transistor network and a switch element network. An adjustable resistance network is introduced into a phase shifter orthogonal signal generation circuit, an adjustable capacitance network is introduced into a variable gain amplifier of the attenuator, performance parameters of the phase shifter and the attenuator are adjusted by regulating and controlling the resistance network and the capacitance network, an amplitude-phase control device and a transceiver are regulated and controlled through a calibration adjustment unit, and the amplitude-phase control device and the transceiver are adjusted and controlled through a calibration adjustment unit. And high-precision calibration and optimization of performance parameters of the amplitude-phase control device and the transceiver are realized.

Description

Technical Field

[0001] The present invention belongs to the field of electronic science and technology, and relates to a radio frequency integrated circuit device, a circuit module, and a calibration circuit and application of a transceiver. Background Art

[0002] Phased array systems can achieve beamforming and have widespread applications in high-speed wireless interconnection, satellite communications, and high-resolution radar. The core components of a phased array system are amplitude and phase (collectively referred to as amplitude and phase) control devices and transceivers. Amplitude and phase control devices include phase shifters, attenuators, low-noise amplifiers, power amplifiers (or driver amplifiers), power combiners, power dividers, transceiver switches (switches between receivers and transmitters, such as time-division duplex switches for millimeter-wave mobile communications and radar systems), and so on. The various circuit components above are connected to form an amplitude and phase control transceiver or amplitude and phase control module (referred to as a phased transceiver or module), where the phased transceiver includes a receiver (or receive link) and a transmitter (or transmit link).

[0003] The phase shift accuracy (or phase error) of the amplitude and phase control device and transceiver and the related root mean square (RMS) phase error, additional phase shift amplitude error (or additional phase shift gain error), amplitude control accuracy (or called amplitude error, gain control accuracy, gain error) and the related root mean square (RMS) amplitude error (or RMS gain error), additional phase shift, orthogonal phase error, orthogonal amplitude (or gain) error, noise figure, linearity (including input 1dB compression point IP1dB, output 1dB compression point OP1dB, input third-order intercept point IIP3, output third-order intercept point OIP3, saturated output power Psat, output power, amplitude modulation-phase modulation distortion AM-PM distortion, etc.), efficiency, bandwidth, gain, vector error magnitude (EVM) and other performance parameters determine the beamwidth, beam scanning range, beam scanning accuracy, sidelobe performance, equivalent isotropic radiated power (EIRP), gain / noise temperature (G / T) and other performance of the phased array system. Traditionally, various circuit technologies have been developed to adjust amplitude and phase control devices, transceivers, and RF signals to improve the performance of phased array systems.

[0004] The invention patent "A RF domain calibration system and method for a RF circuit unit" (CN202210310816.9, 2022.03.28; PCT / CN2022 / 136570, 2022.12.05; US12003281, 2024.06.04: reference patent 1) discloses a RF domain calibration technology for a RF circuit unit. The RF domain calibration system disclosed in this technology includes a RF circuit unit and a calibration unit. The calibration unit includes a calibration control unit and a calibration adjustment unit. The invention does not provide the specific circuit structure of the amplitude and phase control device and the calibration adjustment unit of the transceiver and the corresponding control method.

[0005] The invention patent "An amplitude and phase synchronization calibration circuit" (CN202311516314.2, 2023.11.14: Reference Patent 2) discloses an amplitude and phase synchronization calibration circuit, which mainly solves the problem of low amplitude and phase control accuracy in amplitude and phase control systems. This technology samples and extracts the output signals of the variable gain amplifier and phase shifter cascade circuit through an amplitude and phase calibration loop, generates pre-distorted amplitude codes and phase codes through a lookup table, and then feedback controls the variable gain amplifier and phase shifter to achieve amplitude and phase calibration. This technology relies on RF signal sampling circuits (such as mixers) and extraction circuits (such as filters). The circuit structure is complex and can only calibrate amplitude and phase parameters. In contrast, the technology disclosed in the present invention does not need to sample the RF signal first, has a simple structure, and can increase the calibration adjustment range of the amplitude and phase control device and the transceiver through an integrated calibration adjustment unit, and calibrate and optimize various performance parameters other than amplitude and phase.

[0006] The invention patent "A Temperature Compensation Circuit and Phased Array Device" (CN201880098673.1, October 31, 2018; PCT / CN2018 / 113097, October 31, 2018: Reference Patent 3) provides a temperature compensation circuit and phased array device to reduce the impact of temperature changes on gain in the signal path. This technology uses a temperature detection circuit and a temperature signal conversion circuit to control a passive variable attenuator, achieving temperature drift compensation for gain. This technology relies on a bandgap reference module to detect temperature. An operational amplifier circuit then converts the temperature signal into a control voltage to control the attenuation of the passive variable attenuator, thereby regulating the gain error (attenuation accuracy) of the phased array device. The circuit structure of Reference Patent 3 is complex and is only suitable for calibrating gain fluctuations caused by temperature changes. It is not suitable for calibrating circuit performance fluctuations caused by other factors (such as process fluctuations, aging, etc.). It also cannot calibrate or optimize the performance of amplitude and phase control devices and other transceiver features. In contrast, the present invention achieves temperature compensation for attenuator gain error through a calibration adjustment unit including a capacitor network. In addition to the temperature compensation of gain error provided in Reference Patent 3, the present invention can also realize temperature compensation, calibration and optimization of other performance parameters of the attenuator (such as additional phase shift, operating frequency, etc.).

[0007] The invention patent "Calibration Circuit and Method, Phase Shifting Circuit, RF Transceiver Circuit, Radar and Equipment" (CN202211100529.1, 2022.09.08: Reference Patent 4) provides a calibration circuit and calibration method for a phase shifter. This technology samples the output signal of the phase shifter through a downconverter or an analog-to-digital converter (ADC) to obtain the actual phase information of the output signal. Based on the phase deviation between the actual phase and the preset phase shift phase, a phase calibration circuit generates a control signal to calibrate the phase deviation (or phase error). In contrast, the present invention does not require the use of a downconverter or analog-to-digital converter (ADC) to sample the output signal of the phase shifter. Instead, it calibrates the phase error of the phase shifter through a calibration adjustment unit including a resistor network. The calibration circuit structure and calibration method are simpler and have a larger calibration range. In addition to the phase error calibration provided by Reference Patent 4, the present invention can also calibrate and optimize other performance parameters of the phase shifter (such as additional phase shift amplitude error, additional phase shift gain error, operating frequency, etc.).

[0008] The invention patent "Amplitude and Phase Control Circuit and Multi-channel Amplitude and Phase Control Matrix" (CN201710867802.6, September 22, 2017: Reference Patent 5) provides an amplitude and phase control circuit. This technology uses a calibration control module to set the target phase and target amplitude, generating a digital control signal that is sent to the amplitude and phase control module to achieve amplitude and phase control. The amplitude and phase control module (i.e., the amplitude and phase control circuit, such as a phase shifter or attenuator) does not have the ability to adjust the circuit structure and parameters, nor does it have the ability to calibrate the amplitude control accuracy (also known as amplitude error, gain control accuracy, gain error) and phase shift accuracy (or phase error). In contrast, the present invention introduces a calibration adjustment unit into the amplitude and phase control circuit to achieve high-precision calibration of the amplitude and phase of the amplitude and phase control device or transceiver, and can also calibrate and optimize various performance parameters beyond amplitude and phase.

[0009] The invention patent "Amplitude and phase integrated control circuit based on resistance attenuation network" (CN202311266978.8, 2023.09.27: reference patent 6) provides an amplitude and phase integrated control circuit based on a resistance attenuation network. This technology achieves attenuation control and phase control by adding a phase control switch tube and a capacitor element to the π-type or T-type passive resistance network of the attenuator (ATT). In contrast, the present invention introduces a capacitor network as a calibration adjustment unit in the variable gain amplifier (VGA) of the attenuator. Unlike the capacitor element introduced in the passive resistance network of the attenuator in reference patent 6, the capacitor network introduced in the variable gain amplifier of the present invention has a wider control range and higher control accuracy for the attenuator performance parameters, which can achieve large-scale and high-precision calibration of the attenuator amplitude error, and can also achieve calibration and optimization of the additional phase shift of the attenuator.

[0010] The invention patent "An amplitude and phase control circuit with a calibration module" (CN202411945089.9, 2024.12.26: Reference Patent 7) discloses a feedback-based amplitude and phase control circuit. This technology uses an amplitude calibration circuit as the feedback circuit of a variable gain amplifier to calibrate the amplitude of the output signal of the variable gain amplifier to reduce the amplitude error; and uses a phase calibration circuit as the feedback circuit of a phase shifter to control the output signal phase of the orthogonal signal generator in the phase shifter to reduce the phase error. Reference Patent 7 calibrates the output signal amplitude of the variable gain amplifier and the output signal phase of the orthogonal signal generator based on the feedback circuit of the variable gain amplifier and the feedback circuit of the phase shifter. The calibration amplitude achieved by this technology is small, the calibration accuracy is low, and it needs to rely on a complex feedback circuit. In contrast, the present invention introduces adjustable circuit units into variable-gain amplifiers and quadrature signal generators, thereby significantly improving the adjustment range and calibration accuracy of the output signal amplitude and phase. The present invention introduces a capacitor network into the attenuator's variable-gain amplifier, and through the capacitor network's calibration and adjustment unit, achieves a wide range, high-precision calibration of the attenuator's amplitude error, and can also calibrate and optimize the attenuator's additional phase shift. The present invention introduces a resistor network into the quadrature signal generator, and through the resistor network's calibration and adjustment unit, achieves a wide range, high-precision calibration of the phase shifter's phase error. Furthermore, the present invention's technology, based on a calibration and adjustment unit composed of a resistor network, a capacitor network, an inductor network, a transistor network, and a switch element network, can achieve programmable, configurable, adaptive, and real-time control and calibration of various amplitude and phase control devices and transceivers.

[0011] The paper "K. Koh and G.M. Rebeiz, 0.13-μm CMOS Phase Shifters for X-Ku- and K-band Phased Arrays, IEEE J. Solid-State Circuits, vol. 42, no. 11, pp. 2535-2546, Nov. 2007" (Reference 1) uses an inductor-capacitor (LC) compensation circuit to eliminate the effects of capacitive loads on the phase of the quadrature signal generation circuit in the phase shifter, thereby optimizing the phase error of the phase shifter. This L-C compensation circuit does not include an adjustable resistor network, and the adjustment range and accuracy of the inductor and capacitor generally do not match the adjustable range of a resistor network. This results in a narrow phase error calibration range and low calibration accuracy in Reference 1. Furthermore, Reference 1 does not consider circuit performance fluctuations under different process / voltage / temperature (PVT) conditions, limiting the amplitude and accuracy of phase error calibration. In contrast, the present invention introduces a resistor network into the quadrature signal generation circuit, which has a greater impact on performance parameters and offers higher control precision. Through the resistor network's calibration and adjustment unit, it achieves high-precision calibration of the phase shifter's phase error over a wide range, and is applicable to calibration of circuit performance parameters under different process / voltage / temperature (PVT) conditions. Furthermore, the technology in Reference 1 only optimizes certain performance parameters (such as phase error and amplitude error) of the quadrature signal generation circuit and the phase shifter containing it, and is unable to calibrate or optimize the performance parameters of other amplitude and phase control components and transceivers.

[0012] The document "N. Wei et al., A Calibration Scheme for 24-28-GHz Variable-Gain Phase Shifter in 65-nm CMOS, IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 69, no. 4, pp. 1996-2000, April 2022" (Reference 2) mitigates the effects of process / voltage / temperature (PVT) variations on the phase shifter's phase accuracy by adjusting the switched resistor array and the switched capacitor array. However, due to the large parasitic effects of the switched resistor array and the switched capacitor array, it is difficult to simultaneously optimize the calibration adjustment range and calibration accuracy of the phase error. The implemented root mean square (RMS) phase error of this circuit is large (the optimal value is 1.1°), and the circuit's control word configuration is complex. In contrast, the present invention achieves phase shift accuracy calibration of the phase shifter through a calibration adjustment unit including a resistor network, does not require the configuration of complex control words, and can increase the calibration adjustment range of the phase shifter performance parameters. In addition, other performance of the phase shifter (such as additional phase shift amplitude error, additional phase shift gain error, operating frequency, etc.) can also be calibrated and optimized.

[0013] The document “Y.Yuan et al., A Compact Ka-Band Eight-Element Four-Beam Receiver for Low-Earth-Orbit Satellite Communications in 65-nm CMOS, IEEE Microwave and Wireless Technology Letters, vol. 33, no. 6, pp. 883-886, June 2023” (reference 3) realizes the adjustment of the variable gain amplifier through a digitally controlled transconductance unit. This technology uses a complex digitally controlled current source array to achieve gain compensation of the variable gain amplifier, and the optimal value of the root mean square (RMS) amplitude error achieved is 0.1 dB. The attenuation function and phase shift function of this technology are achieved by adjusting the gain of the variable gain amplifier, wherein the transconductance control and the current source control are coupled, which significantly increases the complexity of the amplitude and phase beam control and calibration adjustment of the entire amplitude and phase control system. In contrast, the technology of the present invention does not rely on the digitally controlled current source array, and the attenuation control and phase shift control are relatively independent, which can provide higher attenuation accuracy and phase shift accuracy, and the wave control is simple and the calibration adjustment is more convenient.

[0014] The literature "W.Zhu et al., A 24-28-GHz Four-Element Phased-Array Transceiver Front End With 21.1% / 16.6% Transmitter Peak / OP1dB PAE and Subdegree Phase Resolution Supporting 2.4Gb / s in 256-QAM for 5-G Communications, IEEE Transactions on Microwave Theory and Techniques, vol.69, no.6, pp.2854-2869, June 2021" (Reference 4) achieves a root mean square (RMS) phase error of 0.26° in a phased transceiver by integrating a transformer-coupled orthogonal signal generation network; and achieves a root mean square (RMS) gain error of 0.2dB through a complex redundant gain control strategy. The transformer coupling circuit used in this technology does not include an adjustable resistor network, and the adjustment range and accuracy of the transformer's inductance value and coupling coefficient generally cannot reach the adjustable degree of the resistor network. As a result, Reference 4 has a small calibration range for phase error and low calibration accuracy, and the circuit cannot achieve further adjustment and optimization of performance parameters after tape-out processing and solidification. The patent of the present invention uses an adjustable resistor network, which has a larger calibration range for phase error and gain error and higher calibration accuracy. In addition, the technology of the present invention is based on a calibration and adjustment unit composed of a resistor network, a capacitor network, an inductor network, a transistor network, and a switch element network. It can achieve programmable, configurable, adaptive, real-time control and calibration of various amplitude and phase control devices and transceivers under different process / voltage / temperature (PVT) conditions and different applications (communication, radar, electronic countermeasures, etc.).

[0015] The document "Y. Zhang et al., 0.78°-1.22° RMS Phase Error, 0.14-0.32dB RMS Gain Error, K-Band 4-Channel Phased Array Receiver IC for Satcom on the Move (SOTM), IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 71, no. 12, pp. 4869-4873, December 2024" (Reference 5) uses an inductor-capacitor (L-C) compensation unit and a discrete, adjustable resistor element in the quadrature signal generation circuit of the phase shifter to reduce the phase error of the phase shifter. In contrast, the technology of the present invention uses a calibration adjustment unit including a resistor network in the quadrature signal generation circuit of the phase shifter. The resistor network is composed of one or more resistor elements, transistor elements, and switch elements. By regulating the bias voltage of the transistor elements, continuous, high-precision resistance adjustment is achieved, thereby achieving more accurate phase error calibration. In addition to the orthogonal signal generating circuit, the present invention also uses a calibration adjustment unit including a capacitor network in the variable gain amplifier of the phase shifter to achieve phase error calibration and optimization with a wider range and higher precision. In addition, Reference 5 reduces the gain error of the attenuator by using a neutralization capacitor and redundant bits in the attenuator. In contrast, the technology of the present invention uses a calibration adjustment unit including a capacitor network to achieve gain error calibration and optimization of the attenuator. Reference 5 can only calibrate the phase error of the phase shifter and the gain error of the attenuator, while the technology of the present invention can also achieve calibration and optimization of other performances of the phase shifter and attenuator (such as additional phase shift amplitude error, additional phase shift, operating frequency, etc.).

[0016] In summary, conventional calibration techniques for amplitude and phase control devices rely on one or more circuits, including downconverters, analog-to-digital converters, sampling circuits, and temperature detection circuits, or employ complex digitally controlled current source arrays to calibrate amplitude and phase errors. These circuit structures are complex, resulting in a narrow calibration range and low accuracy. Conventional techniques employ inductors, capacitors, and transformers as compensation circuits, but their calibration range and accuracy generally fall short of the adjustable range of resistor networks. Furthermore, conventional techniques are unable to calibrate amplitude and phase errors under varying process / voltage / temperature (PVT) conditions and for diverse applications (communications, radar, electronic countermeasures, etc.). Furthermore, conventional techniques are unable to calibrate and optimize performance parameters other than amplitude and phase errors of amplitude and phase control devices and transceivers. Furthermore, once conventional circuit chips are solidified through tape-out, further performance parameter adjustment is not possible. To date, there is a lack of a viable high-precision calibration circuit and technique for amplitude and phase control devices and transceivers that utilizes a calibration adjustment unit to control the amplitude and phase control devices and transceivers, enabling high-precision calibration and optimization of multiple performance parameters. The present invention regulates and controls amplitude and phase control devices and transceivers through a calibration and adjustment unit comprising a resistor network, a capacitor network, an inductor network, a transistor network, and a switching element network, achieving calibration and optimization of various performance parameters of the amplitude and phase control devices and transceivers. Compared to conventional technologies, the present invention's high-precision calibration circuit for amplitude and phase control devices or transceivers has a simpler structure and enables high-precision, wide-range, real-time regulation and calibration of various performance parameters, such as amplitude error and phase error, for various PVT conditions and applications. Summary of the Invention

[0017] In view of the deficiencies of the prior art, the present invention aims to provide a high-precision calibrated amplitude and phase control device or transceiver, which adjusts the amplitude and phase control device or transceiver through a calibration adjustment unit to achieve high-precision calibration of its performance parameters and performance optimization.

[0018] In order to achieve the above object, the technical solution of the present invention is as follows:

[0019] A high-precision calibrated amplitude and phase control device or transceiver:

[0020] The high-precision calibrated amplitude and phase control device or transceiver (hereinafter referred to as the amplitude and phase control device or transceiver) is composed of one or more circuit devices including a phase shifter, an attenuator, an amplifier, a power combiner, a power divider, and a transceiver switch. The high-precision calibration circuit of the amplitude and phase control device includes a calibration adjustment unit. The power combiner and power divider are collectively referred to as a power distribution network (hereinafter referred to as the distribution network).

[0021] The calibration adjustment unit is composed of one or more of a resistor network, a capacitor network, an inductor network, a transistor network, and a switch network;

[0022] The amplitude and phase control device or transceiver is regulated by the calibration and adjustment unit to achieve high-precision calibration and optimization of the performance parameters of the amplitude and phase control device or transceiver;

[0023] The high-precision calibrated phase shifter includes a main phase shifter unit and a phase shifter calibration adjustment unit. The phase shifter calibration adjustment unit is composed of a resistor network. By adjusting the resistor network, one or more performance parameters of the phase shifter, such as phase error, additional phase shift amplitude error, and operating frequency, are optimized.

[0024] The high-precision calibrated attenuator includes a main attenuator unit and an attenuator calibration adjustment unit, wherein the attenuator calibration adjustment unit is composed of a capacitor network. By adjusting the capacitor network, one or more performance parameters of the attenuator, such as gain error, additional phase shift, and operating frequency, are optimized.

[0025] The high-precision calibrated amplitude and phase control device or transceiver is implemented by discrete devices or integrated circuits.

[0026] As a preferred embodiment of the present invention,

[0027] The resistor network of the calibration adjustment unit of the phase shifter is located in the quadrature signal generating circuit of the phase shifter and is composed of one or more types of resistor elements, transistor elements, and switch elements.

[0028] As an improvement of the present invention,

[0029] The resistance value of the resistor network is a fixed value or a variable value;

[0030] The transistor elements of the resistor network form a variable resistor;

[0031] The resistance value of the resistor network is regulated by one or both of the bias voltage of the transistor element and the control word of the switch element.

[0032] As a preferred embodiment of the present invention,

[0033] The capacitance network of the calibration adjustment unit of the attenuator is located in one or more stages of variable gain amplifier circuits in the attenuator and is composed of one or more of capacitance elements, transistor elements, varactor elements, and switch elements.

[0034] As an improvement of the present invention,

[0035] The capacitance value of the capacitor network is a fixed value or a variable value;

[0036] The transistor elements and varactor elements of the capacitor network form a variable capacitor;

[0037] The capacitance value of the capacitor network is controlled by one or more of a bias voltage of a transistor element, a bias voltage of a varactor element, and a control word of a switch element.

[0038] As an improvement of the present invention,

[0039] By adjusting the capacitor networks of different branch circuits (ie, different stages in the cascade circuit) in the variable gain amplifier of the attenuator, the additional phase shifts of the different branch circuits are offset, thereby significantly reducing the additional phase shift of the attenuator.

[0040] As a preferred embodiment of the present invention,

[0041] A high-precision calibrated amplifier (including one or more of a low-noise amplifier, a power amplifier, and a driver amplifier) ​​includes a main amplifier unit and an amplifier calibration adjustment unit, wherein the amplifier calibration adjustment unit is composed of one or both of a switched resistor divider array and a switched current mirror array;

[0042] The switch resistor voltage divider array is composed of resistor elements and switch elements, and the output voltage value of the switch resistor voltage divider array is regulated by the control word of the switch element;

[0043] The switching current mirror array is composed of transistor elements and switch elements, and the output current value of the switching current mirror array is regulated by the control word of the switch element;

[0044] By regulating the switch resistor divider array or the switch current mirror array, one or more performance parameters of the amplifier, such as bandwidth, gain, noise figure, linearity, and efficiency, can be optimized.

[0045] As a preferred embodiment of the present invention,

[0046] The power distribution network of the amplitude and phase control device includes one or both of a power combiner and a power divider, and the high-precision calibrated power distribution network includes a main distribution network unit and a calibration and adjustment unit of the distribution network;

[0047] The calibration adjustment unit of the distribution network is composed of one or more of a capacitor network, an inductor network, a transistor network, and a switch network, and the capacitor network, the inductor network, the transistor network, and the switch network are composed of one or more of a capacitor element, an inductor element, a transistor element, and a switch element;

[0048] The capacitance network of the calibration adjustment unit of the distribution network is composed of one or more of capacitance elements, transistor elements, and switch elements;

[0049] The inductance network of the calibration and adjustment unit of the distribution network is composed of one or more of an inductance element, a transistor element, and a switch element;

[0050] The transistor network of the calibration adjustment unit of the distribution network is composed of transistor elements;

[0051] The switch network of the calibration and adjustment unit of the distribution network is composed of switch elements;

[0052] By regulating one or more calibration adjustment units of the capacitor network, the inductor network, the transistor network, and the switch network, the performance parameters of the distribution network such as bandwidth, gain, and port return loss are optimized.

[0053] As a preferred embodiment of the present invention,

[0054] The high-precision calibrated transceiver switch includes a main transceiver switch unit and a transceiver switch calibration adjustment unit;

[0055] The calibration adjustment unit of the transceiver switch is composed of one or more of a resistor network, a capacitor network, an inductor network, and a transistor network, and the resistor network, the capacitor network, the inductor network, and the transistor network are composed of one or more of a resistor element, a capacitor element, an inductor element, and a transistor element;

[0056] The resistance network of the calibration adjustment unit of the transceiver switch is composed of one or more types of resistance elements, transistor elements, and switch elements;

[0057] The capacitance network of the calibration adjustment unit of the transceiver switch is composed of one or more of capacitance elements, transistor elements, varactor elements, and switch elements;

[0058] The inductance network of the calibration adjustment unit of the transceiver switch is composed of one or more of an inductance element, a transistor element, and a switch element;

[0059] The transistor network of the calibration adjustment unit of the transceiver switch is composed of transistor elements;

[0060] By regulating one or more calibration adjustment units of a resistor network, a capacitor network, an inductor network, and a transistor network, performance parameters such as bandwidth, gain, and port isolation of the transceiver switch are optimized.

[0061] As a preferred embodiment of the present invention,

[0062] Two or more devices of a high-precision calibrated phase shifter, attenuator, amplifier, power combiner, power divider, and transceiver switch are connected through interconnecting lines to form a high-precision calibrated amplitude and phase control transceiver or module;

[0063] Wherein, the high-precision calibrated amplitude and phase control transceiver or module further includes a calibration and adjustment unit for circuit parameters of connection nodes between amplitude and phase control devices;

[0064] The calibration and adjustment unit for the connection node circuit parameters is composed of one or more of a current adjustment network, a voltage adjustment network, and an impedance adjustment network;

[0065] The current regulating network, voltage regulating network and impedance regulating network of the calibration regulating unit for the connection node circuit parameters are composed of one or more types of resistive elements, capacitive elements, inductive elements, transistor elements and switch elements;

[0066] The performance parameters of amplitude and phase control devices, transceivers or modules are optimized by regulating the calibration adjustment unit of one or more circuit devices such as high-precision calibrated phase shifters, attenuators, amplifiers, power combiners, power dividers, and transceiver switches, or by regulating the calibration adjustment unit of the circuit parameters of the connection nodes between amplitude and phase control devices.

[0067] As a preferred embodiment of the present invention,

[0068] The high-precision calibrated amplitude and phase control transceiver or module further includes a feedback calibration circuit, which includes one or more combinations of a sampling circuit, a quantization circuit, and a feedback calibration control circuit;

[0069] The sampling circuit samples the output signals of one or more circuit devices including a phase shifter, an attenuator, an amplifier, a power combiner, a power divider, and a transceiver switch in an amplitude-phase control transceiver or module containing a calibration adjustment unit;

[0070] The sampling circuit also samples signals at one or more connection nodes between the amplitude and phase control devices;

[0071] The quantization circuit performs one or more of the following processes on the signal obtained by the sampling circuit: amplification, filtering, and quantization;

[0072] The signal processed by the quantization circuit is connected to the feedback calibration control circuit to regulate the corresponding calibration adjustment unit in the amplitude and phase control device, transceiver or module, or the calibration adjustment unit that regulates the circuit parameters of the node connecting the amplitude and phase control devices, so as to realize the performance parameter calibration and optimization of the amplitude and phase control transceiver or module.

[0073] Compared with the prior art, the advantages of the present invention are as follows:

[0074] The present invention provides a high-precision calibrated amplitude-phase control device or transceiver. The amplitude-phase control transceiver or module is composed of one or more circuit devices such as a phase shifter, an attenuator, an amplifier, a power combiner, a power divider, and a transceiver switch. The amplitude-phase control device or transceiver is adjusted by a calibration adjustment unit composed of one or more resistor networks, capacitor networks, inductor networks, transistor networks, and switch networks, thereby achieving large-scale, high-precision, real-time control and calibration of various performance parameters such as amplitude error and phase error under different process / voltage / temperature (PVT) conditions and different applications (communication, radar, electronic countermeasures, etc.). Traditional amplitude and phase control device calibration techniques rely on downconverters, sampling circuits, temperature detection circuits, or complex digitally controlled current source arrays. These techniques result in complex circuit structures and a small calibration range. The adjustable inductors, capacitors, and transformers used in these techniques have low adjustment accuracy and are unable to calibrate amplitude and phase errors under different PVT conditions and for different applications (communications, radar, and electronic countermeasures). Furthermore, these techniques are unable to calibrate other performance characteristics of amplitude and phase control devices and transceivers (such as additional phase shift amplitude error and additional phase shift) and optimize their performance. The present invention introduces an adjustable resistor network into the phase shifter's orthogonal signal generation circuit and an adjustable capacitor network into the attenuator's variable gain amplifier. By regulating the resistor and capacitor networks, the performance parameters of the phase shifter and attenuator can be adjusted. The present invention has a simple circuit structure, uses fewer control words, and can achieve wide-range, high-precision calibration and optimization of multiple performance parameters of amplitude and phase control devices or transceivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 The present invention provides a circuit block diagram of a high-precision calibrated amplitude and phase control device and a transceiver.

[0076] Figure 2 This is a principle block diagram of a high-precision calibrated phase shifter (PS) of the present invention.

[0077] Figure 3 The present invention is a circuit diagram of a high-precision calibrated phase shifter.

[0078] Figure 4 This is a principle block diagram of a high-precision calibrated attenuator (ATT) of the present invention.

[0079] Figure 5 The invention discloses a high-precision calibrated attenuator circuit diagram.

[0080] Figure 6 The present invention discloses a high-precision calibrated variable gain amplifier (VGA) circuit diagram.

[0081] Figure 7 This is a principle block diagram of a high-precision calibrated amplifier of the present invention.

[0082] Figure 8 The present invention discloses a circuit diagram of a high-precision calibrated low-noise amplifier (LNA).

[0083] Figure 9 The present invention discloses a circuit diagram of a high-precision calibrated power amplifier (PA).

[0084] Figure 10 This is a principle block diagram of a high-precision calibrated power distribution network of the present invention.

[0085] Figure 11 The present invention discloses a high-precision calibrated power distribution network circuit diagram.

[0086] Figure 12 This is a principle block diagram of a high-precision calibrated transceiver switch of the present invention.

[0087] Figure 13 The present invention is a circuit diagram of a high-precision calibrated transceiver switch. DETAILED DESCRIPTION

[0088] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0089] The present invention proposes a high-precision calibrated amplitude and phase control device or transceiver, which regulates the amplitude and phase control device or transceiver through a calibration adjustment unit, so that the circuit operates in an expected state, thereby achieving high-precision calibration and optimization of the performance parameters of the amplitude and phase control device or transceiver.

[0090] In the example, an amplitude and phase control (phase control) device or transceiver that has not been calibrated with high precision is called a main phase control device unit (main phase control device) or a main transceiver, and an amplitude and phase control device or transceiver that has been calibrated by a calibration adjustment unit is called a high-precision calibrated phase control device or transceiver (phase control device or transceiver).

[0091] Example 1:

[0092] Figure 1This is a circuit block diagram of a high-precision calibrated amplitude and phase control device and transceiver of the present invention, comprising a main transmitter, a main receiver, a main transceiver switch unit (referred to as the main transceiver switch), an antenna, and a calibration and adjustment unit. The single-channel transmitter includes a main power amplifier (PA) or main driver amplifier (DA) PA11, a main phase shifter (PS) P11, a main attenuator (ATT) A11, a main power divider PD1, and corresponding calibration and adjustment units; the single-channel receiver includes a main low-noise amplifier (LNA) L21, a main phase shifter (PS) P21, a main attenuator (ATT) A21, a main power combiner PD2, and corresponding calibration and adjustment units. The single-channel transceiver also includes a main transceiver switch TRS1 and a calibration and adjustment unit.

[0093] The calibration and adjustment units of the transmitter's main phase shifter unit (referred to as the main phase shifter) P11 and the receiver's main phase shifter P21, respectively, include resistor networks T31 and R31. By adjusting resistor networks T31 and R31, the phase error of the phase shifter PS and one or more related performance parameters, including root mean square (RMS) phase error, additional phase shift amplitude error, additional phase shift gain error, and operating frequency, are optimized. The calibration and adjustment units of the transmitter's main attenuator unit (referred to as the main attenuator) A11 and the receiver's main attenuator A21, respectively, include capacitor networks T21 and R21. By adjusting capacitor networks T21 and R21, the gain error of the attenuator ATT and one or more related performance parameters, including root mean square (RMS) gain error, additional phase shift, and operating frequency, are optimized.

[0094] The calibration and adjustment unit of the main amplifier unit (hereinafter referred to as the main amplifier) ​​PA or DA (PA11) includes one or both of a switching current mirror array T41 or a switching resistor divider array T42, and the calibration and adjustment unit of the main amplifier LNA (L21) includes one or both of a switching current mirror array R41 or a switching resistor divider array R42. By regulating the switching current mirror arrays T41 and R41 or the switching resistor divider arrays T42 and R42, one or more performance parameters of the PA (or DA) and LNA, respectively, including bandwidth, gain, noise figure, linearity, and efficiency, are optimized.

[0095] The calibration adjustment units of the main power divider unit (hereinafter referred to as the main power divider) PD1 and the main power combiner unit (hereinafter referred to as the main power combiner) PD2 respectively include one or more of a capacitor network T11, R11, or an inductor network T12, R12, or a transistor network T13, R13, or a switch network T14, R14. By regulating the capacitor network T11, R11, or the inductor network T12, R12, or the transistor network T13, R13, or the switch network T14, R14, one or more performance parameters of the power divider and the power combiner, such as bandwidth, gain, and port return loss, are optimized respectively;

[0096] The calibration and adjustment unit of the main transceiver switch TRS1 includes one or more of a resistor network TR11, a capacitor network TR12, an inductor network TR13, and a transistor network TR14. By regulating the resistor network TR11, the capacitor network TR12, the inductor network TR13, or the transistor network TR14, one or more performance parameters of the transceiver switch, such as bandwidth, gain, and port isolation, are optimized.

[0097] The high-precision calibrated transmitter and receiver each include at least one channel. In each channel, the antenna is connected to the antenna terminal of the transceiver switch, the transceiver switch's receiving terminal is connected to the receiver's LNA input, and the transceiver switch's transmitting terminal is connected to the transmitter PA (or DA) output. In the high-precision calibrated transmitter, the output signal of the power divider is input to transmitter attenuator A11, the input of transmitter phase shifter P11 is connected to the output of attenuator A11, and the output of phase shifter P11 is connected to the input of transmitter PA (or DA). In the high-precision calibrated receiver, the output of the LNA is connected to the input of receiver phase shifter P21, the output of phase shifter P21 is connected to the input of receiver attenuator A21, and the output signal of attenuator A21 is input to the power combiner. In the high-precision calibrated multi-channel transceiver, the phased-control devices in each channel of the transmitter and receiver include corresponding calibration adjustment units. These calibration adjustment units are controlled via interconnects to achieve high-precision calibration of the phased-control devices and transceiver. The output end of the receiver attenuator ATT of each channel is connected to the input end of the receiver power combiner, and the input end of the transmitter ATT of each channel is connected to the output end of the transmitter power divider.

[0098] The calibration control port, which is used by the calibration and adjustment unit to calibrate and adjust the corresponding main phase-controlled device, is referred to as the control port. The control port of the main transceiver switch is connected to one or more of the resistor network TR11, the capacitor network TR12, the inductor network TR13, or the transistor network TR14. The control ports of the PA (or DA) of the main transmitter and the LNA of the main receiver are respectively connected to one or both of the switch current mirror array T41, R41 or the switch resistor divider array T42, R42. The control ports of the phase shifter P11 of the main transmitter and the phase shifter P21 of the main receiver are respectively connected to the resistor networks T31, R31. The control ports of the attenuator A11 of the main transmitter and the attenuator A21 of the main receiver are respectively connected to the capacitor networks T21, R21. The control ports of the power divider of the main transmitter and the power combiner of the main receiver are respectively connected to one or more of the capacitor networks T11, R11, the inductor networks T12, R12, the transistor networks T13, R13, or the switch networks T14, R14.

[0099] Example 2:

[0100] Figure 2The invention discloses a principle block diagram of a high-precision calibrated phase shifter, which includes a main phase shifter and a calibration adjustment unit of the phase shifter.

[0101] The main phase shifter includes an orthogonal signal generating circuit and two or more variable gain amplifiers 1 (VGA1) and 2 (VGA2). The orthogonal signal generating circuit and the variable gain amplifiers are connected in series.

[0102] The calibration adjustment unit of the quadrature signal generating circuit includes a resistance network 11 , which includes one or more of a resistance element 111 , a transistor element 112 , and a switch element 113 .

[0103] The calibration adjustment unit of the variable gain amplifier VGA1 includes a capacitor network 12 , which includes one or more of a capacitor element 121 , a transistor element 122 , a varactor element 123 , and a switch element 124 .

[0104] The calibration adjustment unit of the variable gain amplifier VGA2 includes a capacitor network 13 , which includes one or more of a capacitor element 131 , a transistor element 132 , a varactor element 133 , and a switch element 134 .

[0105] Example 3:

[0106] Figure 3 The invention discloses a high-precision calibrated phase shifter circuit diagram, which includes a main phase shifter and a calibration and adjustment unit of the phase shifter.

[0107] The main phase shifter includes an orthogonal signal generating circuit, a variable gain amplifier 1 (VGA1), and a variable gain amplifier 2 (VGA2), wherein the orthogonal signal generating circuit includes an inductor L 11 , L 12 , capacitor C 11 、C 12 And other components.

[0108] The calibration adjustment unit of the quadrature signal generating circuit in the phase shifter includes a resistor network 11, which includes two or more resistors R 11 、R 12 , two or more transistors M 11 、M 12 And other components.

[0109] The calibration adjustment units of the variable gain amplifiers VGA1 and VGA2 in the phase shifter are capacitor networks 12 and 13 respectively.

[0110] PSIN+ and PSIN- are the positive input and negative output terminals of the phase shifter, respectively. PSOUT+ and PSOUT- are the positive output and negative output terminals of the phase shifter, respectively. 11 、V 12It is an adjustable bias voltage used to adjust the resistance value of the resistor network 11 in the calibration adjustment unit.

[0111] In the resistor network 11, R 11 Port 1 of the C 11 Port 2, M 11 The source of VGA1, the positive input terminal, R 12 Port 1 of the C 12 Port 2, M 12 The drain of VGA1, the negative input terminal of M 12 The source connection R 12 Port 2, L 11 Port 2, VGA2 negative input terminal, M 11 The drain is connected to R 11 Port 2, L 12 Port 2, VGA2 positive input terminal, M 11 The gate is connected to V 11 , M 12 The gate is connected to V 12 .

[0112] In the quadrature signal generating circuit, C 11 Connect port 1 to PSIN+, L 11 Port 1, C 12 Connect port 1 of PSIN-, L 12 port 1 of the .

[0113] The positive output terminal of VGA1 is connected to the positive output terminal of VGA2, PSOUT+, and the negative output terminal of VGA1 is connected to the negative output terminal of VGA2, PSOUT-.

[0114] Example 4:

[0115] Figure 4 The invention discloses a principle block diagram of a high-precision calibrated attenuator, which includes a main attenuator and an attenuator calibration adjustment unit.

[0116] The main attenuator includes a signal attenuation subunit and at least one variable gain amplifier 3 (VGA3), and the signal attenuation subunit and the variable gain amplifier 3 are connected in series.

[0117] The calibration adjustment unit in the attenuator variable gain amplifier 3 includes a capacitance network 21 , which includes one or more of a capacitance element 211 , a transistor element 212 , a varactor element 213 , and a switch element 214 .

[0118] Example 5:

[0119] Figure 5The invention discloses a high-precision calibrated attenuator circuit diagram, which comprises a main attenuator and an attenuator calibration adjustment unit.

[0120] The main attenuator includes a signal attenuation subunit and a variable gain amplifier 3 (VGA3). The signal attenuation subunit includes a resistor R 21 、R 22 、R 23 , transistor M 21 、M 22 、M 23 、M 24 、M 25 、M 26 And other components.

[0121] The calibration adjustment unit of the variable gain amplifier 3 in the attenuator is a capacitor network 21 .

[0122] ATTIN+ and ATTIN- are the positive input and negative terminals of the attenuator, respectively. ATTOUT+ and ATTOUT- are the positive output and negative terminals of the attenuator, respectively. 21 、V 22 、V 23 、V 24 、V 25 、V 26 is the adjustable bias voltage.

[0123] M 21 The drain is connected to ATTIN+, M 23 The drain, M 25 The drain of VGA3, the positive input terminal, M 22 The drain of ATTIN-, M 24 The drain, M 26 The drain of VGA3, the negative input terminal of M 21 The source connection R 21 Port 1, M 22 The source connection R 21 Port 2, M 23 The source connection R 22 Port 1, M 24 The source connection R 22 Port 2, M 25 The source connection R 23 Port 1, M 26 The source connection R 23 Port 2, M 21 The gate is connected to V 21 , M 22 The gate is connected to V 22 , M 23 The gate is connected to V 23 , M 24 The gate is connected to V24 , M 25 The gate is connected to V 25 , M 26 The gate is connected to V 26 , the positive output terminal of VGA3 is connected to ATTOUT+, and the negative output terminal of VGA3 is connected to ATTOUT-.

[0124] Example 6:

[0125] Figure 6 This is a circuit diagram of a high-precision calibrated variable gain amplifier (VGA1 and VGA2 in the phase shifter, VGA3 in the attenuator, etc.) of the present invention, including a variable gain main amplifier unit (referred to as the variable gain main amplifier, including a variable gain main amplifier unit P and a variable gain main amplifier unit N) and a calibration adjustment unit of the variable gain amplifier, wherein the calibration adjustment units of VGA1, VGA2, and VGA3 respectively include capacitor networks 12, 13, and 21.

[0126] In VGA3, the variable gain main amplifier includes transistor M 31 、M 32 、M 33 、M 34 The capacitance network 21 of the calibration adjustment unit of VGA3 includes four or more transistors M 35 、M 36 、M 37 、M 38 , four or more capacitors C 31 、C 32 、C 33 、C 34 And other components. V 31 、V 32 、V 33 、V 34 、V 35 、V 36 is the adjustable bias voltage, where V 33 、V 34 、V 35 、V 36 Used to regulate the capacitance value of the calibration adjustment unit capacitance network 21.

[0127] The main amplifier units and calibration adjustment units of VGA1, VGA2, and VGA3 have similar structures.

[0128] VGAIN+ and VGAIN- are the positive and negative input terminals of the variable gain amplifier, respectively. VGAOUT+ and VGAOUT- are the positive and negative output terminals of the variable gain amplifier, respectively. DD3 is the power supply voltage.

[0129] In the capacitor network 21, C33 Port 1 is connected to VGAIN+, M 31 The source, M 32 The source of C 34 Port 1, M 35 The drain is connected to VGAOUT-, M 31 The drain, M 32 The drain, M 36 The drain, C 31 Port 1 is connected to VGAIN-, M 33 The source, M 34 The source of C 32 Port 1, M 37 The drain is connected to VGAOUT+, M 33 The drain, M 34 The drain, M 38 The drain, M 35 The source connection C 31 Port 2, M 35 The gate is connected to V 33 , M 36 The source connection C 32 Port 2, M 36 The gate is connected to V 34 , M 37 The source connection C 33 Port 2, M 37 The gate is connected to V 35 , M 38 The source connection C 34 Port 2, M 38 The gate is connected to V 36 .

[0130] In the main amplifier unit, M 31 The gate is connected to V DD3 、M 33 Gate, M 32 The gate is connected to V 31 , M 34 The gate is connected to V 32 .

[0131] Example 7: Figure 7 This is a principle block diagram of a high-precision calibrated amplifier (including one or more of a low-noise amplifier, a power amplifier, and a driver amplifier) ​​of the present invention, including a main amplifier unit (referred to as the main amplifier) ​​and an amplifier calibration adjustment unit.

[0132] The calibration adjustment unit of the amplifier includes one or both of a switch resistor divider array 31 and a switch current mirror array 32. The switch resistor divider array 31 includes one or both of a resistor element 311 and a switch element 312. The switch current mirror array 32 includes one or both of a transistor element 321 and a switch element 322.

[0133] Example 8: Figure 8 The present invention is a circuit diagram of a high-precision calibrated low-noise amplifier LNA, which includes a low-noise main amplifier unit (hereinafter referred to as the low-noise main amplifier) ​​and a calibration adjustment unit, wherein the calibration adjustment unit includes a switch resistor voltage divider array 31.

[0134] The low noise main amplifier includes transistor M 41 、M 42 、M 43 , resistor R 41 、R 42 , capacitor C 41 、C 42 、C 43 , inductance L IN , L 41 , L 42 , L 43 , L 44 , L 45 , L 46 , L 41 , L 42 The coupling coefficient between them is k 41 , L 43 , L 44 The coupling coefficient between them is k 42 , L 45 , L 46 The coupling coefficient between them is k 43 The switch resistor divider array 31 includes transistors M 44 、M 45 、M 46 、M 47 , resistor R 43 、R 44 、R 45 、R 46 、R 47 , and other components.

[0135] V 41 is transistor M 41 By adjusting the bias voltage V 41 , to achieve calibration and performance optimization of one or more performance parameters of the low noise amplifier, such as bandwidth, gain, noise figure, and linearity.

[0136] V G1 、V G2 、V G3、V G4 A bias voltage is provided for the switch resistor divider array 31 , and by adjusting the bias voltage, one or more performance parameters of the low noise amplifier, such as bandwidth, gain, noise figure, and linearity, are calibrated and performance optimized.

[0137] LNAIN is the input terminal of the low noise amplifier, LNAOUT+ and LNAOUT- are the positive and negative output terminals of the low noise amplifier respectively, V DD4 is the power supply voltage.

[0138] In the switch resistor divider array 31, M 44 The drain is connected to R 41 Port 2, R 42 Port 2, M 45 The drain, M 46 The drain, M 47 The drain, R 43 Port 1 is connected to V DD4 , R 43 Port 2 of the M 44 The source, R 44 Port 1, R 44 Port 2 of the M 45 The source, R 45 Port 1, R 45 Port 2 of the M 46 The source, R 46 Port 1, R 46 Port 2 of the M 47 The source, R 47 Port 1, following R 47 Port 2, L 41 Port 2, C 41 Port 2, M 42 The source, M 43 The source is connected to ground.

[0139] In the low noise main amplifier unit, L IN Port 1 is connected to LNAIN, L IN Port 2 of the L 41 Port 1, M 41 The source, M 41 The gate connection L 42 Port 1, L 42 Port 2 of the V 41 , M 41 The drain connection L 43 Port 1, L 43 Port 2 of the C 41 Port 1, L 44 Port 1 of R 41 Port 1, M42 Gate, C 43 Port 1, L 44 Port 2 of R 42 Port 1, M 43 Gate, C 42 Port 1, C 42 Port 2 of the M 42 The drain, L 45 Port 1, C 43 Port 2 of the M 43 The drain, L 45 Port 2, L 46 Port 1 is connected to LNAOUT+, L 46 Connect port 2 of LNAOUT-.

[0140] Example 9: Figure 9 The present invention is a circuit diagram of a high-precision calibrated power amplifier (PA) or driver amplifier (DA), including a power main amplifier unit or a driver main amplifier unit (abbreviated as power main amplifier or driver main amplifier) ​​and an amplifier calibration adjustment unit, wherein the calibration adjustment unit includes a switch current mirror array 32.

[0141] The power main amplifier or driver main amplifier includes a transistor M 51 、M 52 The switching current mirror array 32 includes transistors M 53 、M 54 、M 55 、M 56 、M 57 、M 58 And other components.

[0142] AMPIN+ and AMPIN- are the positive and negative input terminals of the power amplifier or driver amplifier, respectively. AMPOUT+ and AMPOUT- are the positive and negative output terminals of the power amplifier or driver amplifier, respectively. V 51 、V 52 is the adjustable bias voltage, I B is the adjustable bias current.

[0143] In the switch current mirror array 32, M 53 The gate connection M 51 The source, M 52 The source, M 54 The gate and drain, M 55 The drain, M 56 The drain, M 57 The drain, M 58 The drain, M 53 The drain connection I B , M55 The gate connection M 57 The source, M 56 The gate connection M 58 The source, M 57 The gate is connected to V 51 , M 58 The gate is connected to V 52 , the following M 53 The source, M 54 The source, M 55 The source, M 56 The source is connected to ground.

[0144] Power or drive main amplifier unit, M 51 The gate is connected to AMPIN+, M 51 The drain of the AMPOUT+, M 52 The gate is connected to AMPIN-, M 52 The drain is connected to AMPOUT-.

[0145] Example 10:

[0146] Figure 10 The invention discloses a principle block diagram of a high-precision calibrated power distribution network, which includes a main distribution network unit (abbreviated as main distribution network) and a calibration and adjustment unit of the distribution network.

[0147] The calibration and adjustment unit of the distribution network includes one or more of a capacitor network 41, an inductor network 42, a transistor network 43, and a switch network 44. The capacitor network 41 includes one or more of a capacitor element 411, a transistor element 412, and a switch element 413. The inductor network 42 includes one or more of an inductor element 421, a transistor element 422, and a switch element 423. The transistor network 431 includes a transistor element 431. The switch network includes a switch element 441.

[0148] Example 11:

[0149] Figure 11 The invention discloses a high-precision calibrated power distribution network circuit diagram, comprising a main distribution network unit (abbreviated as main distribution network) and a calibration and adjustment unit of the distribution network.

[0150] The main distribution network includes the inductor L 61 , L 62 (L 61 , L 62 The coupling coefficient between 61 ), differential transmission lines DTL1, DTL2. The distribution network calibration adjustment unit includes a capacitor network 41, which includes capacitors C 61 、C 62 , transistor M61 、M 62 , and other components.

[0151] DISIN1+ and DISIN1- are the positive and negative terminals of input 1 of the distribution network, DISIN2+ and DISIN2- are the positive and negative terminals of input 2 of the distribution network, and DISOUT is the output terminal of the distribution network. 61 、V 62 It is an adjustable bias voltage used to adjust the capacitance value of the capacitor network 41 in the calibration adjustment unit.

[0152] In the capacitor network 41, C 61 Connect port 1 of DISOUT, L 61 Port 1, C 62 Port 1, the following L 61 Port 2, M 61 The source, M 62 The source is connected to ground, C 61 Port 2 of the M 61 The drain, C 62 Port 2 of the M 62 The drain, M 61 The gate is connected to V 61 , M 62 The gate is connected to V 62 .

[0153] In the main distribution network, L 62 Connect port 1 of DTL1 to the positive end of port 1 and the positive end of port 1 of DTL2. 62 Port 2 of DTL1 is connected to the negative end of port 1 of DTL1 and the negative end of port 2 of DTL2. The positive end of port 2 of DTL1 is connected to DISIN1+, the negative end of port 2 of DTL1 is connected to DISIN1-, the positive end of port 2 of DTL2 is connected to DISIN2+, and the negative end of port 2 of DTL2 is connected to IN2-.

[0154] Example 12:

[0155] Figure 12 The invention discloses a principle block diagram of a high-precision calibrated transceiver switch, which includes a main transceiver switch and a calibration adjustment unit of the transceiver switch.

[0156] The calibration and adjustment unit of the transceiver switch includes one or more of a resistor network 51, a capacitor network 52, an inductor network 53, and a transistor network 54. The resistor network 51 includes one or more of a resistor element 511, a transistor element 512, and a switch element 513. The capacitor network 52 includes one or more of a capacitor element 521, a transistor element 522, a varactor element 523, and a switch element 524. The inductor network 53 includes one or more of an inductor element 531, a transistor element 532, and a switch element 533. The transistor network 54 includes a transistor element 541.

[0157] Example 13:

[0158] Figure 13 The invention discloses a high-precision calibrated transceiver switch circuit diagram, comprising a main transceiver switch and a calibration adjustment unit of the transceiver switch.

[0159] The main transceiver switch includes a transistor M 71 、M 72 , inductance L 71 , L 72 , L 73 Among them, L 71 , L 72 The coupling coefficient between them is k 71 , L 71 , L 73 The coupling coefficient between them is k 72 , L 72 , L 73 The coupling coefficient between them is k 73 The transceiver switch calibration adjustment unit includes a resistor network 51 and a capacitor network 52. The resistor network 51 includes a resistor R 71 、R 72 , transistor M 73 、M 74 The capacitor network 52 includes capacitors C 71 、C 72 , transistor M 75 、M 76 And other components.

[0160] RX+ and RX- are the receiving positive and negative terminals of the transceiver switch, TX+ and TX- are the transmitting positive and negative terminals of the transceiver switch, ANT is the antenna terminal of the transceiver switch, V 71 、V 72 、V 73 、V 74 、V 75 、V 76 is the adjustable bias voltage, where V 73 、V 74 Used to adjust the resistance value of the resistor network 51 in the calibration adjustment unit, V75 、V 76 Used to adjust the capacitance value of the capacitance network 52 in the calibration adjustment unit.

[0161] In the capacitor network 52, C 71 Port 1 of the ANT, R 71 Port 1, R 72 Port 1, L 73 Port 1, C 72 Port 1, the following M 76 The source, M 73 The source, M 74 The source, M 75 The source, L 73 Port 2 is connected to ground, M 75 The drain connection C 71 Port 2, M 75 The gate is connected to V 75 , M 76 The drain connection C 72 Port 2, M 76 The gate is connected to V 76 .

[0162] In the resistor network 51, M 73 The drain is connected to R 71 Port 2, M 73 The gate is connected to V 73 , M 74 The drain is connected to R 72 Port 2, M 74 The gate is connected to V 74 .

[0163] In the main transceiver switch, L 71 Port 1 of the M 71 Drain, RX+, L 71 Port 2 of the M 71 Source, RX-, M 71 The gate is connected to V 71 , L 72 Port 1 of the M 72 Drain, TX+, L 72 Port 2 of the M 72 Source, TX-, M 72 The gate is connected to V 72 .

[0164] The above embodiments are only for illustrating the technical ideas of the present invention and cannot be used to limit the scope of protection of the present invention. Any equivalent replacement, combination or modification made on the basis of the technical solution in accordance with the technical ideas proposed by the present invention, without departing from the spirit and scope of the technical solution of the present invention, should be included in the claims and protection scope of the present invention.

Claims

1. A high-precision calibrated amplitude and phase control device or transceiver, characterized by: The amplitude and phase control device or transceiver is composed of one or more circuit devices including a phase shifter, an attenuator, an amplifier, a power distribution network, and a transceiver switch, and the high-precision calibration circuit of the amplitude and phase control device includes a calibration adjustment unit; The calibration adjustment unit is composed of one or more of a resistor network, a capacitor network, an inductor network, a transistor network, and a switch network; The amplitude and phase control device or transceiver is regulated by the calibration and adjustment unit to achieve high-precision calibration and optimization of the performance parameters of the amplitude and phase control device or transceiver; The high-precision calibrated phase shifter includes a main phase shifter unit and a phase shifter calibration adjustment unit. The phase shifter calibration adjustment unit is composed of a resistor network. By adjusting the resistor network, one or more performance parameters of the phase shifter, such as phase error, additional phase shift amplitude error, and operating frequency, are optimized. The high-precision calibrated attenuator includes a main attenuator unit and an attenuator calibration adjustment unit, wherein the attenuator calibration adjustment unit is composed of a capacitor network. By regulating the capacitor network, one or more performance parameters of the attenuator, such as gain error, additional phase shift, and operating frequency, are optimized.

2. A high-precision calibrated amplitude and phase control device or transceiver according to claim 1, characterized in that: The resistor network of the calibration adjustment unit of the phase shifter is located in the quadrature signal generating circuit of the phase shifter and is composed of one or more of a resistor element, a transistor element, and a switch element; The resistance value of the resistor network is a fixed value or a variable value; The transistor elements of the resistor network form a variable resistor; The resistance value of the resistor network is regulated by one or both of the bias voltage of the transistor element and the control word of the switch element.

3. The high-precision calibrated amplitude and phase control device or transceiver according to claim 1, characterized in that: The capacitance network of the calibration adjustment unit of the attenuator is located in the variable gain amplifier circuit of the attenuator and is composed of one or more of capacitance elements, transistor elements, varactor elements, and switch elements; The capacitance value of the capacitor network is a fixed value or a variable value; The transistor elements and varactor elements of the capacitor network form a variable capacitor; The capacitance value of the capacitor network is controlled by one or more of a bias voltage of a transistor element, a bias voltage of a varactor element, and a control word of a switch element.

4. The high-precision calibrated amplitude and phase control device or transceiver according to claim 1, characterized in that: The high-precision calibrated amplifier includes a main amplifier unit and an amplifier calibration adjustment unit, wherein the amplifier calibration adjustment unit is composed of one or both of a switch resistor divider array and a switch current mirror array; The switch resistor voltage divider array is composed of resistor elements and switch elements, and the output voltage value of the switch resistor voltage divider array is regulated by the control word of the switch element; The switching current mirror array is composed of transistor elements and switch elements, and the output current value of the switching current mirror array is regulated by the control word of the switch element; By regulating the switch resistor divider array or the switch current mirror array, one or more performance parameters of the amplifier, such as bandwidth, gain, noise figure, linearity, and efficiency, can be optimized.

5. The high-precision calibrated amplitude and phase control device or transceiver according to claim 1, characterized in that: The power distribution network of the amplitude and phase control device includes one or both of a power combiner and a power divider, and the high-precision calibrated power distribution network includes a main distribution network unit and a calibration and adjustment unit of the distribution network; The calibration and adjustment unit of the power distribution network is composed of one or more of a capacitor network, an inductor network, a transistor network, and a switch network; The capacitance network, inductance network, transistor network and switch network of the calibration and adjustment unit of the power distribution network are composed of one or more capacitance elements, inductance elements, transistor elements and switch elements; By regulating the capacitor network, inductor network, transistor network or switch network, one or more performance parameters of the power distribution network, such as bandwidth, gain, and port return loss, are optimized.

6. The high-precision calibrated amplitude and phase control device or transceiver according to claim 1, characterized in that: The high-precision calibrated transceiver switch includes a main transceiver switch unit and a transceiver switch calibration adjustment unit; The calibration adjustment unit of the transceiver switch is composed of one or more of a resistor network, a capacitor network, an inductor network, and a transistor network; The resistor network, capacitor network, inductor network and transistor network of the calibration adjustment unit of the transceiver switch are composed of one or more types of resistor elements, capacitor elements, inductor elements and transistor elements; By regulating the resistor network, capacitor network, inductor network or transistor network, one or more performance parameters of the transceiver switch, such as bandwidth, gain, and port isolation, are optimized.

7. The high-precision calibrated amplitude and phase control device or transceiver according to claim 1, characterized in that: Two or more devices of a high-precision calibrated phase shifter, attenuator, amplifier, power combiner, power divider, and transceiver switch are connected through interconnecting lines to form a high-precision calibrated amplitude and phase control transceiver or module; Wherein, the high-precision calibrated amplitude and phase control transceiver or module further includes a calibration and adjustment unit for circuit parameters of connection nodes between amplitude and phase control devices; The calibration and adjustment unit for the connection node circuit parameters is composed of one or more of a current adjustment network, a voltage adjustment network, and an impedance adjustment network; The current regulating network, voltage regulating network and impedance regulating network are composed of one or more kinds of resistive elements, capacitive elements, inductive elements, transistor elements and switch elements; The performance parameters of the amplitude and phase control transceiver or module are optimized by regulating the calibration adjustment unit of one or more circuit devices such as high-precision calibrated phase shifters, attenuators, amplifiers, power combiners, power dividers, and transceiver switches, or by regulating the calibration adjustment unit of the circuit parameters of the connection nodes between amplitude and phase control devices.

8. The high-precision calibrated amplitude and phase control device or transceiver according to claim 7, characterized in that: The high-precision calibrated amplitude and phase control transceiver or module further includes a feedback calibration circuit, which includes one or more combinations of a sampling circuit, a quantization circuit, and a feedback calibration control circuit; The sampling circuit samples the output signals of one or more circuit devices including a phase shifter, an attenuator, an amplifier, a power combiner, a power divider, and a transceiver switch in an amplitude-phase control transceiver or module containing a calibration adjustment unit; The sampling circuit also samples signals at one or more connection nodes between the amplitude and phase control devices; The quantization circuit performs one or more of the following processes on the signal obtained by the sampling circuit: amplification, filtering, and quantization; The signal processed by the quantization circuit is connected to the feedback calibration control circuit to adjust the calibration adjustment unit of the amplitude and phase control transceiver or module, or the calibration adjustment unit that adjusts the circuit parameters of the node connecting the amplitude and phase control devices, so as to realize the performance parameter calibration and optimization of the amplitude and phase control transceiver or module.

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