Coupled diabiotic antenna circuit

Abstract

The application discloses a coupled dual-element bionic antenna circuit, which comprises a first input port X1, a second input port X2, a first output port Y1, a second output port Y2, a same-phase amplification circuit, an opposite-phase amplification circuit and an output coupling circuit; the first input port X1 and the second input port X2 are connected to the first input end and the second input end of the same-phase amplification circuit respectively, and the output end of the same-phase amplification circuit is connected to the output coupling circuit; the first input port X1 and the second input port X2 are connected to the first input end and the second input end of the opposite-phase amplification circuit respectively, and the first output end and the second output end of the opposite-phase amplification circuit are connected to the output coupling circuit; and the output coupling circuit is connected to the first output port Y1 and the second output port Y2. The application can reduce the power loss of a small antenna aperture radar system, realize phase difference amplification of a received signal, and adjust the position where the maximum value of the phase gain of the small antenna aperture radar system appears.

Description

Technical Field

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

[0002] 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 address this, a biomimetic RLC coupling circuit model can simulate the unique mechanical coupling structure of the ear of a female parasitic fly (such as the yellow parasitic fly Ormia ochracea). By moderately sacrificing signal power, it significantly amplifies the tiny phase difference received by the dual antennas in the direction with an incident angle of 0 degrees, achieving high-precision sound source localization and compensating for the limitations caused by the small ear spacing.

[0003] However, existing biomimetic RLC coupling circuit models sacrifice signal power and can only achieve maximum phase gain in the direction of incident angle of 0 degrees, which greatly limits their application.

[0004] In view of the above problems, it is necessary to study a coupled dual-element bionic antenna circuit. This coupled dual-element bionic antenna circuit can reduce the power loss of small aperture radar system while amplifying the phase difference of the received signal of small aperture radar system. At the same time, it can also adjust the position where the maximum value of phase gain of small aperture radar system occurs. Summary of the Invention

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

[0006] To achieve the above objectives, the solution of the present invention is:

[0007] A 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 non-inverting amplifier circuit, an inverting amplifier circuit, and an output coupling circuit; the output coupling circuit includes a resistor R0, transformers T1, T2, T3, and T4, and the transformation ratios of transformers T1, T2, T3, and T4 are all 1;

[0008] The first input terminal and the second input terminal of the non-inverting amplifier circuit are connected to the first input port X1 and the second input port X2, respectively. The output terminal of the non-inverting amplifier circuit is connected to the first terminal of resistor R0, the first terminal of the primary coil of transformer T1, and the first terminal of the secondary coil of transformer T3.

[0009] 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. 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 transformer T4, respectively.

[0010] The first end of the secondary coil of transformer T1 is connected to the first output port Y1. The second end of the secondary coil of transformer T1 is connected to the first end of the secondary coil of transformer T2. The first end of the primary coil of transformer T2 is connected to the second end of the primary coil of transformer T3 and the first end of the secondary coil of transformer T4. The first end of the secondary coil of transformer T3 is connected to the second output port Y2. The second end of the secondary coil of transformer T4, the second end of the secondary coil of transformer T3, the second end of the primary coil of transformer T2, the second end of the secondary coil of transformer T2, the second end of the primary coil of transformer T1, and the second end of resistor R0 are grounded.

[0011] The amplification factor of the non-inverting amplifier circuit is A, and the amplification factor of the inverting amplifier circuit is B.

[0012] A and B satisfy: .

[0013] The in-phase amplifier circuit includes resistor Z1 and resistor Z. Cc Resistance Z Uc1 Resistance Z Uc2 Resistance Z Lc Resistance Z E MOSFET Q C1 Inductor L c1 Inductor L c2 and capacitor C C1 Resistance Z Uc1 and resistance Z Uc2 The resistance values ​​are the same; resistor Z Uc1 The first terminal and resistor Z Uc2 The first terminal is connected to the first and second input terminals of the non-inverting amplifier circuit, respectively, and the resistor Z Uc1 The second terminal and resistor Z Uc2 The second end is connected to inductor L c1 The first terminal and the MOSFET Q C1 The gate of the MOSFET Q C1 The source is through resistor Z E Grounded, MOSFET Q C1 The drain of the inductor L c2 The second terminal and capacitor C C1 The first terminal, capacitor C C1 The second terminal is connected to resistor Z Lc Connect the output terminal of the non-inverting amplifier circuit, inductor L c2The first terminal and resistor Z Cc The first terminal is connected to the control power supply VCC, and the resistor Z Cc The second end is connected to inductor L c1 The second terminal of resistor Z1 is connected to the first terminal of resistor Z1, and the second terminal of resistor Z1 is grounded.

[0014] The gain A of the non-inverting amplifier circuit is:

[0015] ;

[0016] Where Uth1 is the MOSFET Q C1 The threshold voltage, I DSS1 For MOSFET Q C1 Drain current at zero gate voltage, K p1 For MOSFET Q C1 The ratio of the threshold voltage Uth1 to the channel length L1, Uth1, I DSS1 K p1 Both are constants; Uc is the input voltage of the non-inverting amplifier circuit, Z Lc1 For resistance Z Lc The impedance, Z Lc2 θ is the impedance of resistor R0; j is an imaginary number, and θa is the angle gain of the non-inverting amplifier circuit.

[0017] The inverting amplifier circuit includes 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、 Inductor L d1 Inductor L d2 Inductor L d3 Inductor L d4 MOSFET Q d1 and MOSFET Q d2 Resistance Z 21 and resistance Z 22 The resistance values ​​are the same, resistor Z Ud1 and resistance Z Ud2 The resistance values ​​are the same, resistor Z Cd1 and resistance Z Cd2 The resistance values ​​are the same, resistor Z E1 and resistance Z E2 The resistance values ​​are the same, and the capacitor C d1 and capacitor C d2 The capacitance values ​​are the same, and the inductance Ld1 and inductor L d3 The inductance values ​​are the same, inductance L d2 and inductor L d4 With the same resistance, the MOSFET Q d1 and MOSFET Q d2 The parameters are the same; resistance Z Ud1 The first terminal and resistor Z Ud2 The first terminal is connected to the first and second input terminals of the inverting amplifier circuit, respectively; resistor Z Ud1 The second end is connected to inductor L d1 The first terminal and the MOSFET Q d1 The gate of the MOSFET Q d1 The source is through resistor Z E1 Grounded, MOSFET Q d1 The drain of the inductor L d2 The first terminal and capacitor C d1 The first terminal, capacitor C d1 The second terminal and resistor Z Ld The first terminal is connected to the first output terminal of the inverting amplifier circuit, and the inductor L d2 The second terminal and resistor Z Cd1 The first terminal is connected to the control power supply VCC, and the resistor Z Cd1 The second end is connected to inductor L d1 The second terminal and resistor Z 21 The first terminal, resistor Z 21 The second terminal is grounded; resistor Z Ud2 The second end is connected to inductor L d3 The first terminal and the MOSFET Q d2 The gate of the MOSFET Q d2 The source is through resistor Z E2 Grounded, MOSFET Q d2 The drain of the inductor L d4 The first terminal and capacitor C d2 The first terminal, capacitor C d2 The second terminal and resistor Z Ld The second terminal is connected to the second output terminal of the inverting amplifier circuit, and the inductor L d4 The second terminal and resistor Z Cd2 The first terminal is connected to the control power supply VCC, and the resistor Z Cd2 The second end is connected to inductor L d3 The second terminal and resistor Z 22 The first terminal, resistor Z 22 The second terminal is grounded;

[0018] The amplification factor B of the inverting amplifier circuit is:

[0019] ;

[0020] Where Uth2 is the Q of the MOSFET. d1 and MOSFET Q d2 The threshold voltage, I DSS2 For MOSFET Q d1 and MOSFET Q d2 Drain current at zero gate voltage, K p2 For MOSFET Q d1 and MOSFET Q d2 The ratio of the threshold voltage Uth2 to the channel length L2, Uth2, I DSS2 K p2 All are constants; j is an imaginary number, and θb is the angle gain of the inverting amplifier circuit.

[0021] After adopting the above solution, the present invention has the following characteristics:

[0022] 1. The coupled dual-element bionic antenna circuit of the present invention can process the in-phase and out-of-phase components of a small-aperture radar system through in-phase and out-of-phase amplifier circuits, thereby amplifying the phase difference. It also ensures that the output power of the small-aperture radar system during reception is not only not lost compared to the input power, but is also appropriately enhanced. In addition, both the in-phase and out-of-phase amplifier circuits use MOSFETs. MOSFETs have higher operating frequencies, more stable threshold voltages, and lower static power consumption, making them more suitable for the requirements of radar radio frequency signals.

[0023] 2. The coupled dual-element bionic antenna circuit of the present invention also considers the influence of phase gain. The value of angle gain can be changed by adjusting the output impedance of the in-phase amplifier circuit and the out-of-phase amplifier circuit, thereby moving the position where the maximum phase gain occurs. This allows the antenna to obtain higher gain in a specific direction and respond more flexibly to signals from different directions. 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. Attached Figure Description

[0024] Figure 1 This is a schematic diagram illustrating the application of the coupled dual-element bionic antenna circuit of the present invention.

[0025] Figure 2 This is the electrical schematic diagram of the coupled dual-element bionic antenna circuit of the present invention.

[0026] Figure 3 A schematic diagram illustrating the effect of in-phase components on phase difference.

[0027] Figure 4 A schematic diagram illustrating the effect of the inverting component on the phase difference.

[0028] Figure 5This is a graph showing the relationship between the angle gain and the phase gain of the present invention. Detailed Implementation

[0029] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0030] like Figure 1 and Figure 2 As shown, this invention discloses a coupled dual-element bionic antenna circuit. This coupled dual-element bionic antenna circuit can process the in-phase and out-of-phase components of a small-aperture radar system, thereby amplifying the phase difference. Furthermore, it ensures that the output power of the small-aperture radar system during reception not only does not suffer loss compared to the input power, but also experiences appropriate enhancement. (In conjunction with...) Figure 1 As shown, when the coupled dual-element bionic antenna circuit is applied, the co-source signal is split into two paths. One path of the co-source signal 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. The other path of the co-source signal 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.

[0031] 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 non-inverting amplifier circuit, an inverting amplifier circuit, and an output coupling circuit. The output coupling circuit includes a resistor R0, transformers T1, T2, T3, and T4, with each transformer T1, T2, T3, and T4 having a transformation ratio of 1. The first and second input terminals of the non-inverting amplifier circuit are respectively connected to the first input port X1 and the second input port X2. The output terminal of the non-inverting amplifier circuit is connected to the first terminal of resistor R0, the first terminal of the primary coil of transformer T1, and the first terminal of the secondary coil of transformer T3. The first and second input terminals of the inverting amplifier circuit are respectively connected to the first input... Port X1 and the second input port X2, the first output terminal and the second output terminal of the inverting amplifier circuit are respectively connected to the first end and the second end of the primary coil of transformer T4; the first end of the secondary coil of transformer T1 is connected to the first output port Y1, the second end of the secondary coil of transformer T1 is connected to the first end of the secondary coil of transformer T2, the first end of the primary coil of transformer T2 is connected to the second end of the primary coil of transformer T3 and the first end of the secondary coil of transformer T4, the first end of the secondary coil of transformer T3 is connected to the second output port Y2, the second end of the secondary coil of transformer T4, the second end of the secondary coil of transformer T3, the second end of the primary coil of transformer T2, the second end of the secondary coil of transformer T2, the second end of the primary coil of transformer T1, and the second end of resistor R0 are grounded.

[0032] In an embodiment of the present invention, the amplification factor of the non-inverting amplifier circuit is A, and the amplification factor of the inverting amplifier circuit is B; A and B satisfy: This configuration allows the coupled dual-element bionic antenna circuit to appropriately amplify the phase difference and output power.

[0033] In an embodiment of the present invention, the in-phase amplifier circuit includes resistor Z1 and resistor Z2. Cc Resistance Z Uc1 Resistance Z Uc2 Resistance Z Lc Resistance Z E MOSFET Q C1 Inductor L c1 Inductor L c2 and capacitor C C1 Resistance Z Uc1 and resistance Z Uc2 The resistance values ​​are the same; resistor Z Uc1 The first terminal and resistor Z Uc2 The first terminal is connected to the first and second input terminals of the non-inverting amplifier circuit, respectively, and the resistor Z Uc1 The second terminal and resistor Z Uc2 The second end is connected to inductor L c1 The first terminal and the MOSFET Q C1 The gate of the MOSFET Q C1 The source is through resistor Z E Grounded, MOSFET Q C1 The drain of the inductor L c2 The second terminal and capacitor C C1 The first terminal, capacitor C C1 The second terminal is connected to resistor Z Lc Connect the output terminal of the non-inverting amplifier circuit, inductor L c2 The first terminal and resistor Z Cc The first terminal is connected to the control power supply VCC, and the resistor Z Cc The second end is connected to inductor L c1 The second terminal of resistor Z1 is connected to the first terminal of resistor Z1, and the second terminal of resistor Z1 is grounded.

[0034] The gain A of the non-inverting amplifier circuit is:

[0035] ;

[0036] Where Uth1 is the MOSFET Q C1 The threshold voltage, I DSS1 For MOSFET Q C1 Drain current at zero gate voltage, K p1 For MOSFET Q C1The ratio of the threshold voltage Uth1 to the channel length L1, Uth1, I DSS1 K p1 Both are constants; Uc is the input voltage of the non-inverting amplifier circuit, Z Lc1 For resistance Z Lc The impedance, Z Lc2 θ is the impedance of resistor R0; j is an imaginary number, and θa is the angle gain of the non-inverting amplifier circuit.

[0037] 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、 Inductor L d1 Inductor L d2 Inductor L d3 Inductor L d4 MOSFET Q d1 and MOSFET Q d2 Resistance Z 21 and resistance Z 22 The resistance values ​​are the same, resistor Z Ud1 and resistance Z Ud2 The resistance values ​​are the same, resistor Z Cd1 and resistance Z Cd2 The resistance values ​​are the same, resistor Z E1 and resistance Z E2 The resistance values ​​are the same, and the capacitor C d1 and capacitor C d2 The capacitance values ​​are the same, and the inductance L d1 and inductor L d3 The inductance values ​​are the same, inductance L d2 and inductor L d4 With the same resistance, the MOSFET Q d1 and MOSFET Q d2 The parameters are the same; resistance Z Ud1 The first terminal and resistor Z Ud2 The first terminal is connected to the first and second input terminals of the inverting amplifier circuit, respectively; resistor Z Ud1 The second end is connected to inductor L d1 The first terminal and the MOSFET Q d1 The gate of the MOSFET Q d1 The source is through resistor Z E1 Grounded, MOSFET Q d1The drain of the inductor L d2 The first terminal and capacitor C d1 The first terminal, capacitor C d1 The second terminal and resistor Z Ld The first terminal is connected to the first output terminal of the inverting amplifier circuit, and the inductor L d2 The second terminal and resistor Z Cd1 The first terminal is connected to the control power supply VCC, and the resistor Z Cd1 The second end is connected to inductor L d1 The second terminal and resistor Z 21 The first terminal, resistor Z 21 The second terminal is grounded; resistor Z Ud2 The second end is connected to inductor L d3 The first terminal and the MOSFET Q d2 The gate of the MOSFET Q d2 The source is through resistor Z E2 Grounded, MOSFET Q d2 The drain of the inductor L d4 The first terminal and capacitor C d2 The first terminal, capacitor C d2 The second terminal and resistor Z Ld The second terminal is connected to the second output terminal of the inverting amplifier circuit, and the inductor L d4 The second terminal and resistor Z Cd2 The first terminal is connected to the control power supply VCC, and the resistor Z Cd2 The second end is connected to inductor L d3 The second terminal and resistor Z 22 The first terminal, resistor Z 22 The second terminal is grounded;

[0038] The amplification factor B of the inverting amplifier circuit is:

[0039] ;

[0040] Where Uth2 is the Q of the MOSFET. d1 and MOSFET Q d2 The threshold voltage, I DSS2 For MOSFET Q d1 and MOSFET Q d2 Drain current at zero gate voltage, K p2 For MOSFET Q d1 and MOSFET Q d2 The ratio of the threshold voltage Uth2 to the channel length L2, Uth2, I DSS2 K p2 All are constants; j is an imaginary number, and θb is the angle gain of the inverting amplifier circuit.

[0041] To facilitate understanding of this invention, the design principles of this invention will be described in detail below.

[0042] Cooperate Figure 3 and Figure 4 As shown, by performing orthogonal decomposition on signals u1 and u2 with a phase difference Ф, the in-phase component Ub, the out-of-phase component -Ub, and the in-phase component Ua can be obtained; in conjunction with Figure 3 As shown, when the inverting components Ub and -Ub are kept constant and the in-phase component Ua is amplified, the phase difference Ф between the input signals u1 and u2 decreases; in conjunction with Figure 4 As shown, when the in-phase component Ua is kept constant and the out-of-phase components Ub and -Ub are amplified, the phase difference Ф between signals u1 and u2 increases. Therefore, to increase the phase difference between two signals, the out-of-phase components of these two signals can be increased while the in-phase components are suppressed.

[0043] This 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.

[0044] The phase gain η and the phase difference between the phase gain η and the input signal of the small-aperture radar system employing the coupled dual-element biomimetic antenna circuit of this invention. φ in Phase difference with the output signal φ out The slope is related to and defined as:

[0045]

[0046] Because this invention introduces not only amplitude gain but also angular gain, namely θa and θb, it can not only increase the phase difference of the output signal but also change the position where the maximum phase gain occurs by altering the value of the angular gain.

[0047] when , It is always true, that is The maximum value (i.e., the maximum value of the phase gain η) is at θ=0. And... As a result, the maximum value of the phase gain η will shift to either side. Therefore, by appropriately changing the angle gains 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 As shown.

[0048] Normalized output level L outThe ratio of the normalized power at the output port of a small-aperture radar system employing the coupled dual-element bionic antenna circuit of the present invention to the normalized power at the input port of the same system is: Among them, P out This refers to the normalized power at the output port of a small-aperture radar system employing the coupled dual-element bionic antenna circuit of this invention. P in This refers to the normalized power of the input port of a small-aperture radar system employing the coupled dual-element bionic antenna circuit of this invention.

[0049] Because this invention amplifies both the in-phase and out-of-phase components, it also increases the output power while increasing the phase difference. Lout The value will be greater than 1. This invention, by modifying circuit parameters, allows us to adjust the phase gain η and the normalized output level. Lout Adjust to the values ​​we need to improve angular resolution, increase output power, and enhance phase gain.

[0050] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A coupled dual bionic antenna circuit, characterized by: The output coupling circuit comprises 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 terminal and the second input terminal of the in-phase amplification circuit are connected with the first input port X1 and the second input port X2 respectively, and the output terminal of the in-phase amplification circuit is connected with the first terminal of the resistor R0, the first terminal of the primary coil of the transformer T1 and the first terminal of the secondary coil of the transformer T3; The first input terminal and the second input terminal of the in-phase amplification circuit are connected with the first input port X1 and the second input port X2 respectively, and the output terminal of the in-phase amplification circuit is connected with the first terminal of the resistor R0, the first terminal of the primary coil of the transformer T1 and the first terminal of the secondary coil of the transformer T3; The first terminal of the secondary coil of the transformer T1 is connected with the first output port Y1, the second terminal of the secondary coil of the transformer T1 is connected with the first terminal of the secondary coil of the transformer T2, the first terminal of the primary coil of the transformer T2 is connected with the second terminal of the primary coil of the transformer T3 and the first terminal of the secondary coil of the transformer T4, the first terminal of the secondary coil of the transformer T3 is connected with the second output port Y2, the second terminal of the secondary coil of the transformer T4, the second terminal of the secondary coil of the transformer T3, the second terminal of the primary coil of the transformer T2, the second terminal of the secondary coil of the transformer T2, the second terminal of the primary coil of the transformer T1 and the second terminal of the resistor R0 are grounded; The in-phase amplification circuit comprises resistors Z Cc , resistors Z Uc1 , resistors Z Uc2 , resistors Z Lc , resistors Z E , MOS tubes Q C1 , inductors L c1 , inductors L c2 and capacitors C C1 ; the resistors Z Uc1 and the resistors Z Uc2 have the same resistance; the first end of the resistor Z Uc1 and the first end of the resistor Z Uc2 are connected to the first input end and the second input end of the in-phase amplification circuit respectively, the second end of the resistor Z Uc1 and the second end of the resistor Z Uc2 are connected to the first end of the inductor L c1 and the gate of the MOS tube Q C1 , the source of the MOS tube Q C1 is grounded through the resistor Z E , the drain of the MOS tube Q C1 is connected to the second end of the inductor L c2 and the first end of the capacitor C C1 , the second end of the capacitor C C1 is connected to the output end of the in-phase amplification circuit through the resistor Z Lc , the first end of the inductor L c2 and the first end of the resistor Z Cc are connected to the control power supply VCC, the second end of the resistor Z Cc is connected to the second end of the inductor L c1 and the first end of the resistor Z1, and the second end of the resistor Z1 is grounded. The inverting amplifier circuit includes 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、 Inductor L d1 Inductor L d2 Inductor L d3 Inductor L d4 MOSFET Q d1 and MOSFET Q d2 Resistance Z 21 and resistance Z 22 The resistance values ​​are the same, resistor Z Ud1 and resistance Z Ud2 The resistance values ​​are the same, resistor Z Cd1 and resistance Z Cd2 The resistance values ​​are the same, resistor Z E1 and resistance Z E2 The resistance values ​​are the same, and the capacitor C d1 and capacitor C d2 The capacitance values ​​are the same, and the inductance L d1 and inductor L d3 The inductance values ​​are the same, inductance L d2 and inductor L d4 With the same resistance, the MOSFET Q d1 and MOSFET Q d2 The parameters are the same; resistance Z Ud1 The first terminal and resistor Z Ud2 The first terminal is connected to the first and second input terminals of the inverting amplifier circuit, respectively; resistor Z Ud1 The second end is connected to inductor L d1 The first terminal and the MOSFET Q d1 The gate of the MOSFET Q d1 The source is through resistor Z E1 Grounded, MOSFET Q d1 The drain is connected to the inductor L d2 The first terminal and capacitor C d1 The first terminal, capacitor C d1 The second terminal and resistor Z Ld The first terminal is connected to the first output terminal of the inverting amplifier circuit, and the inductor L d2 The second terminal and resistor Z Cd1 The first terminal is connected to the control power supply VCC, and the resistor Z Cd1 The second end is connected to inductor L d1 the second end of the resistor Z 21 the first end of the resistor Z 21 the second end of the resistor Z Ud2 the second end of the inductor L d3 the first end of the MOS transistor Q d2 the gate of the MOS transistor Q d2 the source of the MOS transistor Q E2 the ground of the MOS transistor Q d2 the drain of the MOS transistor Q d4 the first end of the capacitor C d2 the first end of the capacitor C d2 the second end of the resistor Z Ld the second end of the inductor L d4 the second end of the resistor Z Cd2 the first end of the resistor Z Cd2 the second end of the inductor L d3 the second end of the resistor Z 22 the first end of the resistor Z 22 the ground of the resistor Z 2. A coupled two-element bionic antenna circuit as claimed in claim 1, characterized in that: The amplification multiple of the in-phase amplification circuit is A, and the amplification multiple of the anti-phase amplification circuit is B; A and B satisfy: .

3. The coupled diaboly bionic antenna circuit of claim 1 or 2, wherein: The amplification multiple A of the in-phase amplification circuit is: ； Where Uth1 is the MOSFET Q C1 The threshold voltage, I DSS1 For MOSFET Q C1 Drain current at zero gate voltage, K p1 For MOSFET Q C1 The ratio of the threshold voltage Uth1 to the channel length L1, Uth1, I DSS1 K p1 Both are constants; Uc is the input voltage of the non-inverting amplifier circuit, Z Lc1 For resistance Z Lc The impedance, Z Lc2 θ is the impedance of resistor R0; j is an imaginary number, and θa is the angle gain of the non-inverting amplifier circuit.

4. The coupled diaboly bionic antenna circuit of claim 1 or 2, wherein: The amplification multiple B of the anti-phase amplification circuit is: ； where Uth2 is the threshold voltage of the MOS transistor Q d1 and the MOS transistor Q d2 I DSS2 is the drain current of the MOS transistor Q d1 and the MOS transistor Q d2 at zero gate voltage, K p2 is the ratio of the threshold voltage Uth2 and the channel length L2 of the MOS transistor Q d1 and the MOS transistor Q d2 Uth2, I DSS2 , K p2 are all constants; j is an imaginary number, and θb is the angle gain of the inverting amplifier circuit.

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