Coupled dual-element bionic antenna circuit

Abstract

The invention discloses a coupled dual-element bionic antenna circuit. The coupled dual-element bionic antenna circuit comprises a first input port X1, a second input port X2, a first output port Y1, a second output port Y2, an in-phase amplification circuit, a reverse-phase amplification circuit and an output coupling circuit, a first input end and a second input end of the in-phase amplification circuit are respectively connected with a first input port X1 and a second input port X2, and an output end of the in-phase amplification circuit is connected with the output coupling circuit; a first input end and a second input end of the inverting amplification circuit are respectively connected with a first input port X1 and a second input port X2, and a first output end and a second output end of the inverting amplification circuit are respectively connected with the output coupling circuit; the output coupling circuit is connected with the first output port Y1 and the second output port Y2. According to the invention, the power loss of the small antenna aperture radar system can be reduced, phase difference amplification of received signals can be realized, and the position where the maximum value of the phase gain of the small antenna aperture radar system appears can be adjusted.

Description

Technical Field

[0001] The invention relates to the field of radar, in particular to a coupled dual-element bionic antenna circuit. Background Art

[0002] In order to improve the angular resolution of modern radar systems, it is usually necessary to increase the antenna aperture, but further expansion in physical size is often difficult to achieve. To this end, an existing RLC coupling circuit model based on bionic principles can simulate the unique mechanical coupling structure of the ears of female parasitic flies (such as the yellow parasitic fly Ormia ochracea). By moderately sacrificing signal power, the tiny phase difference received by the dual antennas in the direction of an incident angle of 0 degrees is significantly amplified, achieving high-precision sound source positioning, making up for the limitation caused by the small ear spacing.

[0003] However, the existing RLC coupling circuit model based on the bionic principle sacrifices signal power and can only achieve maximum phase gain in the direction where the incident angle is 0 degrees, which has great limitations in use.

[0004] In view of the existence of the above problems, it is necessary to study a coupled dual-element bionic antenna circuit. The coupled dual-element bionic antenna circuit can reduce the power loss of the small antenna aperture radar system while realizing the phase difference amplification of the received signal of the small antenna aperture radar system, and can also adjust the position where the maximum value of the phase gain of the small antenna aperture radar system occurs. Summary of the invention

[0005] The purpose of the present invention is to provide a coupled dual-element bionic antenna circuit, which can reduce the power loss of a small antenna aperture radar system while achieving phase difference amplification of a received signal of the small antenna aperture radar system, and can also adjust the position where the maximum value of the phase gain of the small antenna aperture radar system occurs.

[0006] In order to achieve the above object, the solution of the present invention is: A coupled dual-element bionic antenna circuit, comprising a first input port X1, a second input port X2, a first output port Y1, a second output port Y2, a common-phase amplifier circuit, an inverting amplifier circuit, and an output coupling circuit; the output coupling circuit comprises a resistor R0, a transformer T1, a transformer T2, a transformer T3, and a transformer T4, and the transformer T1, the transformer T2, the transformer T3, and the transformer T4 all have a transformation ratio of 1; The first input terminal and the second input terminal of the in-phase amplifier circuit are connected to the first input port X1 and the second input port X2 respectively, and the output terminal of the in-phase amplifier circuit is connected to the first end of the resistor R0, the first end of the primary coil of the transformer T1 and the first end of the secondary coil of the transformer T3; The first input terminal and the second input terminal of the inverting amplifier circuit are connected to the first input port X1 and the second input port X2 respectively, and the first output terminal and the second output terminal of the inverting amplifier circuit are connected to the first terminal and the second terminal of the primary coil of the transformer T4 respectively; A first end of the secondary coil of the transformer T1 is connected to the first output port Y1, a second end of the secondary coil of the transformer T1 is connected to a first end of the secondary coil of the transformer T2, a first end of the primary coil of the transformer T2 is connected to a second end of the primary coil of the transformer T3 and a first end of the secondary coil of the transformer T4, a first end of the secondary coil of the transformer T3 is connected to the second output port Y2, a second end of the secondary coil of the transformer T4, a second end of the secondary coil of the transformer T3, a second end of the primary coil of the transformer T2, a second end of the secondary coil of the transformer T2, a second end of the primary coil of the transformer T1 and a second end of the resistor R0 are grounded.

[0007] The amplification factor of the in-phase amplifier circuit is A, and the amplification factor of the inverting amplifier circuit is B; A and B satisfy: .

[0008] The in-phase amplifier circuit includes a resistor Z1, a resistor Z Cc , resistance Z Uc1 , resistance Z Uc2 , resistance Z Lc , resistance Z E 、MOS tube Q C1 、Inductance L c1 、Inductance L c2 and capacitor C C1 ; Resistance Z Uc1 and resistor Z Uc2 The resistance value is the same; the resistance Z Uc1 The first terminal and resistor Z Uc2 The first end of the resistor Z is connected to the first input end and the second input end of the in-phase amplifier circuit respectively. Uc1 The second end and resistor Z Uc2 The second end of the inductor L c1 The first end and MOS tube Q C1 The gate of MOS tube Q C1 The source of the resistor Z E Ground, MOS tube Q C1 The drain connection inductance L c2 The second terminal and capacitor C C1 The first end of the capacitor C C1 The second end is connected through the resistor Z Lc Connect the output end of the common-mode amplifier circuit, inductor L c2 The first terminal and resistor Z Cc The first end of the resistor is connected to the control power supply VCC,Cc The second end of the inductor L c1 a second end of the resistor Z1 and a first end of the resistor Z1, wherein the second end of the resistor Z1 is grounded; The amplification factor A of the common-mode amplifier circuit is: ; Among them, Uth1 is the MOS tube Q C1 The threshold voltage, I DSS1 Q for MOS tube C1 The drain current at zero gate voltage, k p1 Q for MOS tube C1 The ratio of the threshold voltage Uth1 and the channel length L1, Uth1, I DSS1 , k p1 are all constants; Uc is the input voltage of the common-mode amplifier circuit, Z Lc1 is the resistance Z Lc1 The impedance, Z Lc2 is the impedance of resistor ZLc2; j is an imaginary number, and θa is the angular gain of the common-mode amplifier circuit.

[0009] The inverting amplifier circuit includes a resistor Z 21 , resistance Z 22 , resistance Z Ud1 , resistance Z Ud2 , resistance Z Cd1 , resistance Z Cd2 , resistance Z E1 , resistance Z E2 , resistance Z Ld , capacitor C d1、 Capacitor C d2、 Inductance L d1 、Inductance L d2 、Inductance L d3 、Inductance L d4 、MOS tube Q d1 And MOS tube Q d2 ; Resistance Z 21 and resistor Z 22 The resistance value is the same, the resistor Z Ud1 and resistor Z Ud2 The resistance value is the same, the resistor Z Cd1 and resistor Z Cd2 The resistance value is the same, the resistor Z E1 and resistor Z E2 The resistance value is the same, the capacitor C d1 and capacitor C d2 The capacitance value is the same, the inductance L d1 and inductor L d3 The inductance value is the same, the inductance L d2 and inductor L d4 The resistance value of MOS tube Qd1 And MOS tube Q d2 The parameters are the same; resistance Z Ud1 The first terminal and resistor Z Ud2 The first end of the resistor Z is connected to the first input end and the second input end of the inverting amplifier circuit respectively; Ud1 The second end of the inductor L d1 The first end and MOS tube Q d1 The gate of MOS tube Q d1 The source of the resistor Z E1 Ground, MOS tube Q d1 The drain connection inductance L d2 The first terminal and capacitor C d1 The first end of the capacitor C d1 The second end and resistor Z Ld The first end of the inductor L is connected to the first output end of the inverting amplifier circuit. d2 The second end and resistor Z Cd1 The first end of the resistor is connected to the control power supply VCC, Cd1 The second end of the inductor L d1 The second end and resistor Z 21 The first end of the resistor Z 21 The second end of the resistor Z is grounded; Ud2 The second end of the inductor L d3 The first end and MOS tube Q d2 The gate of MOS tube Q d2 The source of the resistor Z E2 Ground, MOS tube Q d2 The drain connection inductance L d4 The first terminal and capacitor C d2 The first end of the capacitor Cd2 and the first end of the resistor ZLd are connected to the second output end of the inverting amplifier circuit, and the inductor L d4 The second end and resistor Z Cd2 The first end of the resistor is connected to the control power supply VCC, Cd2 The second end of the inductor L d3 The second end and resistor Z 22 The first end of the resistor Z 22 The second end of is grounded; The amplification factor of the inverting amplifier circuit is B: ; Among them, Uth2 is the MOS tube Q d1 And MOS tube Q d2 The threshold voltage, I DSS2 Q for MOS tube d1 And MOS tube Q d2 The drain current at zero gate voltage, kp2 Q for MOS tube d1 And MOS tube Q d2 The ratio of the threshold voltage Uth2 and the channel length L2, Uth2, I DSS2 , k p2 are all constants; j is an imaginary number, and θb is the angular gain of the inverting amplifier circuit.

[0010] After adopting the above scheme, the present invention has the following characteristics: 1. The coupled dual-element bionic antenna circuit of the present invention can process the in-phase component and the inverted-phase component of the small antenna aperture radar system through the in-phase amplifier circuit and the inverted-phase amplifier circuit, so as to realize the amplification of the phase difference, and can make the output power of the small antenna aperture radar system not only not lost but also appropriately enhanced when receiving compared with the input power; in addition, both the in-phase amplifier circuit and the inverted-phase amplifier circuit adopt MOS tubes, which have a higher operating frequency, a more stable threshold voltage, and a lower static power consumption, and are more adaptable to the needs of radar radio frequency signals; 2. The coupled dual-element bionic antenna circuit of the present invention also takes into account the influence of phase gain. The value of the angular gain can be changed by adjusting the output impedance of the in-phase amplifier circuit and the inverting amplifier circuit, thereby moving the position where the maximum phase gain occurs, so that the antenna can obtain a higher gain in a specific direction and respond to signals in different directions more flexibly. At the same time, it can also reduce signal interference from undesired directions and effectively suppress interference signals from other directions to adapt to more complex situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the application of the coupled dual-element bionic antenna circuit of the present invention.

[0012] Figure 2 The electrical schematic diagram of the coupled dual-element bionic antenna circuit of the present invention.

[0013] Figure 3 Schematic diagram of increasing the influence of the in-phase component on the phase difference.

[0014] Figure 4 Schematic diagram of increasing the influence of the anti-phase component on the phase difference.

[0015] Figure 5 Graph showing the relationship between the angle gain and the phase gain of the present invention. DETAILED DESCRIPTION

[0016] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0017] like Figure 1 and Figure 2As shown, the present invention discloses a coupled dual-element bionic antenna circuit, which can process the in-phase component and the anti-phase component of the small antenna aperture radar system, so as to achieve the amplification of the phase difference, and can make the output power of the small antenna aperture radar system when receiving not only not lose but also appropriately enhance compared with the input power. Figure 1 As shown, when the coupled dual-element bionic antenna circuit is used, the homologous signal is divided into two paths, one of the homologous signals is connected to the first input port X1 of the coupled dual-element bionic antenna circuit through a phase delay circuit, a first white noise signal and a first down-conversion circuit, and the other of the homologous signals is connected to the second input port X2 of the coupled dual-element bionic antenna circuit through a second white noise signal and a second down-conversion circuit.

[0018] In an embodiment of the present invention, the coupled dual-element bionic antenna circuit includes a first input port X1, a second input port X2, a first output port Y1, a second output port Y2, a common-phase amplifier circuit, an inverting amplifier circuit and an output coupling circuit; the output coupling circuit includes a resistor R0, a transformer T1, a transformer T2, a transformer T3 and a transformer T4, and the transformation ratios of the transformers T1, T2, T3 and T4 are all 1; the first input end and the second input end of the common-phase amplifier circuit are respectively connected to the first input port X1 and the second input port X2, and the output end of the common-phase amplifier circuit is connected to the first end of the resistor R0, the first end of the primary coil of the transformer T1 and the first end of the secondary coil of the transformer T3; the first input end and the second input end of the inverting amplifier circuit are respectively connected to the first input Port X1 and the second input port X2, the first output end and the second output end of the inverting amplifier circuit are respectively connected to the first end and the second end of the primary coil of the transformer T4; the first end of the secondary coil of the transformer T1 is connected to the first output port Y1, the second end of the secondary coil of the transformer T1 is connected to the first end of the secondary coil of the transformer T2, the first end of the primary coil of the transformer T2 is connected to the second end of the primary coil of the transformer T3 and the first end of the secondary coil of the transformer T4, the first end of the secondary coil of the transformer T3 is connected to the second output port Y2, the second end of the secondary coil of the transformer T4, the second end of the secondary coil of the transformer T3, the second end of the primary coil of the transformer T2, the second end of the secondary coil of the transformer T2, the second end of the primary coil of the transformer T1 and the second end of the resistor R0 are grounded.

[0019] In an embodiment of the present invention, the amplification factor of the in-phase amplifier circuit is A, and the amplification factor of the inverting amplifier circuit is B; A and B satisfy: Such an arrangement can enable the coupled dual-element bionic antenna circuit to properly amplify the phase difference and output power.

[0020] In an embodiment of the present invention, the in-phase amplifier circuit includes a resistor Z1, a resistor Z Cc , resistance Z Uc1 , resistance Z Uc2 , resistance Z Lc , resistance Z E 、MOS tube Q C1 、Inductance L c1 、Inductance L c2 and capacitor C C1 ; Resistance Z Uc1 and resistor Z Uc2 The resistance value is the same; the resistance Z Uc1 The first terminal and resistor Z Uc2 The first end of the resistor Z is connected to the first input end and the second input end of the in-phase amplifier circuit respectively. Uc1 The second end and resistor Z Uc2 The second end of the inductor L c1 The first end and MOS tube Q C1 The gate of MOS tube Q C1 The source of the resistor Z E Ground, MOS tube Q C1 The drain connection inductance L c2 The second terminal and capacitor C C1 The first end of the capacitor C C1 The second end is connected through the resistor Z Lc Connect the output end of the common-mode amplifier circuit, inductor L c2 The first terminal and resistor Z Cc The first end of the resistor is connected to the control power supply VCC, Cc The second end of the inductor L c1 a second end of the resistor Z1 and a first end of the resistor Z1, wherein the second end of the resistor Z1 is grounded; The amplification factor A of the common-mode amplifier circuit is: ; Among them, Uth1 is the MOS tube Q C1 The threshold voltage, I DSS1 Q for MOS tube C1 The drain current at zero gate voltage, k p1 Q for MOS tube C1 The ratio of the threshold voltage Uth1 and the channel length L1, Uth1, I DSS1 , k p1 are all constants; Uc is the input voltage of the common-mode amplifier circuit, Z Lc1 is the resistance Z Lc1 The impedance, Z Lc2 is the impedance of resistor ZLc2; j is an imaginary number, and θa is the angular gain of the common-mode amplifier circuit.

[0021] In an embodiment of the present invention, the inverting amplifier circuit includes a resistor Z 21 , resistance Z 22 , resistance Z Ud1 , resistance Z Ud2 , resistance Z Cd1 , resistance Z Cd2 , resistance Z E1 , resistance Z E2 , resistance Z Ld , capacitor C d1、 Capacitor C d2、 Inductance L d1 、Inductance L d2 、Inductance L d3 、Inductance L d4 、MOS tube Q d1 And MOS tube Q d2 ; Resistance Z 21 and resistor Z 22 The resistance value is the same, the resistor Z Ud1 and resistor Z Ud2 The resistance value is the same, the resistor Z Cd1 and resistor Z Cd2 The resistance value is the same, the resistor Z E1 and resistor Z E2 The resistance value is the same, the capacitor C d1 and capacitor C d2 The capacitance value is the same, the inductance L d1 and inductor L d3 The inductance value is the same, the inductance L d2 and inductor L d4 The resistance value of MOS tube Q d1 And MOS tube Q d2 The parameters are the same; resistance Z Ud1 The first terminal and resistor Z Ud2 The first end of the resistor Z is connected to the first input end and the second input end of the inverting amplifier circuit respectively; Ud1 The second end of the inductor L d1 The first end and MOS tube Q d1 The gate of MOS tube Q d1 The source of the resistor Z E1 Ground, MOS tube Q d1 The drain connection inductance L d2 The first terminal and capacitor C d1 The first end of the capacitor C d1 The second end and resistor Z Ld The first end of the inductor L is connected to the first output end of the inverting amplifier circuit. d2 The second end and resistor Z Cd1 The first end of the resistor is connected to the control power supply VCC, Cd1 The second end of the inductor Ld1 The second end and resistor Z 21 The first end of the resistor Z 21 The second end of the resistor Z is grounded; Ud2 The second end of the inductor L d3 The first end and MOS tube Q d2 The gate of MOS tube Q d2 The source of the resistor Z E2 Ground, MOS tube Q d2 The drain connection inductance L d4 The first terminal and capacitor C d2 The first end of the capacitor Cd2 and the first end of the resistor ZLd are connected to the second output end of the inverting amplifier circuit, and the inductor L d4 The second end and resistor Z Cd2 The first end of the resistor is connected to the control power supply VCC, Cd2 The second end of the inductor L d3 The second end and resistor Z 22 The first end of the resistor Z 22 The second end of is grounded; The amplification factor of the inverting amplifier circuit is B: ; Among them, Uth2 is the MOS tube Q d1 And MOS tube Q d2 The threshold voltage, I DSS2 Q for MOS tube d1 And MOS tube Q d2 The drain current at zero gate voltage, k p2 Q for MOS tube d1 And MOS tube Q d2 The ratio of the threshold voltage Uth2 and the channel length L2, Uth2, I DSS2 , k p2 are all constants; j is an imaginary number, and θb is the angular gain of the inverting amplifier circuit.

[0022] To facilitate understanding of the present invention, the design principle of the present invention is specifically introduced below.

[0023] Cooperate Figure 3 and Figure 4 As shown, by performing orthogonal decomposition on the signals u1 and u2 with a phase difference Ф, the anti-phase component Ub, the anti-phase component -Ub, and the in-phase component Ua can be obtained; Figure 3 As shown, when the anti-phase component Ub and the anti-phase component -Ub are maintained unchanged and the in-phase component Ua is amplified, the phase difference Φ between the input signal u1 and the input signal u2 becomes smaller; Figure 4As shown in the figure, when the in-phase component Ua is maintained unchanged and the anti-phase component Ub and the anti-phase component -Ub are amplified, the phase difference Φ between the signal u1 and the signal u2 becomes larger. It can be seen that in order to increase the phase difference between the two signals, the anti-phase components of the two signals can be increased and the in-phase components of the two signals can be suppressed.

[0024] The present invention introduces phase gain η and normalized output level L out These two parameters are used to quantify the performance of the coupled dual-element bionic antenna circuit of the present invention.

[0025] Phase gain η and the phase difference of the input signal of the small antenna aperture radar system using the coupled dual-element bionic antenna circuit of the present invention φ in The phase difference between the output signal φ out The slope of is associated with and is defined as:

[0026] Since the present invention not only introduces amplitude gain but also angle gain, i.e., θa and θb, the present invention can not only increase the phase difference of the output signal but also change the position where the maximum phase gain occurs by changing the value of the angle gain.

[0027] when , Constant establishment, that is The maximum value of (i.e. the maximum value of phase gain η) is at θ=0. , the maximum value of phase gain η will shift to both sides, so by appropriately changing the angle gain θa and θb, the phase gain η can be changed accordingly to obtain different effects. The relationship between angle gain and phase gain η is as follows: Figure 5 shown.

[0028] Normalized output level L out is the ratio of the normalized power at the output port of the small antenna aperture radar system using the coupled dual-element bionic antenna circuit of the present invention to the normalized power at the input port of the small antenna aperture radar system using the coupled dual-element bionic antenna circuit of the present invention, that is: ; among them, among them P out is the normalized power of the output port of the small antenna aperture radar system using the coupled dual-element bionic antenna circuit of the present invention, P in It is the normalized power of the input port of the small antenna aperture radar system using the coupled dual-element bionic antenna circuit of the present invention.

[0029] Since the present invention adopts amplification measures for both the in-phase component and the anti-phase component, the present invention increases the output power while increasing the phase difference. L out The value of will be greater than 1. By modifying the circuit parameters, the present invention can change the phase gain η and the normalized output level L out Adjust to the value we need to increase the output power and improve the phase gain while improving the angular resolution.

[0030] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A coupled dual-element bionic antenna circuit, characterized in that: It includes a first input port X1, a second input port X2, a first output port Y1, a second output port Y2, a common-phase amplifier circuit, an inverting amplifier circuit, and an output coupling circuit; the output coupling circuit includes a resistor R0, a transformer T1, a transformer T2, a transformer T3, and a transformer T4, and the transformer T1, the transformer T2, the transformer T3, and the transformer T4 all have a transformation ratio of 1; The first input terminal and the second input terminal of the in-phase amplifier circuit are connected to the first input port X1 and the second input port X2 respectively, and the output terminal of the in-phase amplifier circuit is connected to the first end of the resistor R0, the first end of the primary coil of the transformer T1 and the first end of the secondary coil of the transformer T3; The first input terminal and the second input terminal of the inverting amplifier circuit are connected to the first input port X1 and the second input port X2 respectively, and the first output terminal and the second output terminal of the inverting amplifier circuit are connected to the first terminal and the second terminal of the primary coil of the transformer T4 respectively; A first end of the secondary coil of the transformer T1 is connected to the first output port Y1, a second end of the secondary coil of the transformer T1 is connected to a first end of the secondary coil of the transformer T2, a first end of the primary coil of the transformer T2 is connected to a second end of the primary coil of the transformer T3 and a first end of the secondary coil of the transformer T4, a first end of the secondary coil of the transformer T3 is connected to the second output port Y2, a second end of the secondary coil of the transformer T4, a second end of the secondary coil of the transformer T3, a second end of the primary coil of the transformer T2, a second end of the secondary coil of the transformer T2, a second end of the primary coil of the transformer T1 and a second end of the resistor R0 are grounded.

2. A coupled dual-element bionic antenna circuit as claimed in claim 1, characterized in that: The amplification factor of the in-phase amplifier circuit is A, and the amplification factor of the inverting amplifier circuit is B; A and B satisfy: .

3. The coupled dual-element bionic antenna circuit according to claim 1 or 2, characterized in that: The in-phase amplifier circuit includes a resistor Z1, a resistor Z Cc , resistance Z Uc1 , resistance Z Uc2 , resistance Z Lc , resistance Z E 、MOS tube Q C1 、Inductance L c1 、Inductance L c2 and capacitor C C1 ; Resistance Z Uc1 and resistor Z Uc2 The resistance value is the same; Resistor Z Uc1 The first terminal and resistor Z Uc2 The first end of the resistor Z is connected to the first input end and the second input end of the in-phase amplifier circuit respectively. Uc1 The second end and resistor Z Uc2 The second end of the inductor L c1 The first end and MOS tube Q C1 The gate of MOS tube Q C1 The source of the resistor Z E Ground, MOS tube Q C1 The drain connection inductance L c2 The second terminal and capacitor C C1 The first end of the capacitor C C1 The second end is connected through the resistor Z Lc Connect the output end of the common-mode amplifier circuit, inductor L c2 The first terminal and resistor Z Cc The first end of the resistor is connected to the control power supply VCC, Cc The second end of the inductor L c1 a second end of the resistor Z1 and a first end of the resistor Z1, wherein the second end of the resistor Z1 is grounded; The amplification factor A of the common-mode amplifier circuit is: ； Among them, Uth1 is the MOS tube Q C1 The threshold voltage, I DSS1 Q for MOS tube C1 The drain current at zero gate voltage, k p1 Q for MOS tube C1 The ratio of the threshold voltage Uth1 and the channel length L1, Uth1, I DSS1 , k p1 are all constants; Uc is the input voltage of the common-mode amplifier circuit, Z Lc1 is the resistance Z Lc1 The impedance, Z Lc2 is the impedance of resistor ZLc2; j is an imaginary number, and θa is the angular gain of the common-mode amplifier circuit.

4. The coupled dual-element bionic antenna circuit according to claim 1 or 2, characterized in that: The inverting amplifier circuit includes a resistor Z 21 , resistance Z 22 , resistance Z Ud1 , resistance Z Ud2 , resistance Z Cd1 , resistance Z Cd2 , resistance Z E1 , resistance Z E2 , resistance Z Ld , capacitor C d1、 Capacitor C d2、 Inductance L d1 、Inductance L d2 、Inductance L d3 、Inductance L d4 、MOS tube Q d1 And MOS tube Q d2 ; Resistance Z 21 and resistor Z 22 The resistance value is the same, the resistor Z Ud1 and resistor Z Ud2 The resistance value is the same, the resistor Z Cd1 and resistor Z Cd2 The resistance value is the same, the resistor Z E1 and resistor Z E2 The resistance value is the same, the capacitor C d1 and capacitor C d2 The capacitance value is the same, the inductance L d1 and inductor L d3 The inductance value is the same, the inductance L d2 and inductor L d4 The resistance value of MOS tube Q d1 And MOS tube Q d2 The parameters are the same; Resistor Z Ud1 The first terminal and resistor Z Ud2 The first end of the resistor Z is connected to the first input end and the second input end of the inverting amplifier circuit respectively; Ud1 The second end of the inductor L d1 The first end and MOS tube Q d1 The gate of MOS tube Q d1 The source of the resistor Z E1 Ground, MOS tube Q d1 The drain connection inductance L d2 The first terminal and capacitor C d1 The first end of the capacitor C d1 The second end and resistor Z Ld The first end of the inductor L is connected to the first output end of the inverting amplifier circuit. d2 The second end and resistor Z Cd1 The first end of the resistor is connected to the control power supply VCC, Cd1 The second end of the inductor L d1 The second end and resistor Z 21 The first end of the resistor Z 21 The second end of the resistor Z is grounded; Ud2 The second end of the inductor L d3 The first end and MOS tube Q d2 The gate of MOS tube Q d2 The source of the resistor Z E2 Ground, MOS tube Q d2 The drain connection inductance L d4 The first terminal and capacitor C d2 The first end of the capacitor Cd2 and the first end of the resistor ZLd are connected to the second output end of the inverting amplifier circuit, and the inductor L d4 The second end and resistor Z Cd2 The first end of the resistor is connected to the control power supply VCC, Cd2 The second end of the inductor L d3 The second end and resistor Z 22 The first end of the resistor Z 22 The second end of is grounded; The amplification factor of the inverting amplifier circuit is B: ； Among them, Uth2 is the MOS tube Q d1 And MOS tube Q d2 The threshold voltage, I DSS2 Q for MOS tube d1 And MOS tube Q d2 The drain current at zero gate voltage, k p2 Q for MOS tube d1 And MOS tube Q d2 The ratio of the threshold voltage Uth2 and the channel length L2, Uth2, I DSS2 , k p2 are all constants; j is an imaginary number, and θb is the angular gain of the inverting amplifier circuit.

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