Research On Microwave Dual-mode Solid-state Equalization Amplifier Module

Microwave power module is an important component of high-power system,which is of great significance and widely used in contemporary electronic countermeasures and satellite communication systems,combining the advantages of solid-state power devices and electric vacuum tubes,with high gain,low noise,high integration,high efficiency,high output power,etc.;the equalizer is located in the last stage of the solidstate amplifier module,mainly used to improve the phenomenon of uneven output power of the post-stage traveling wave tube The equalizer is located in the final stage of the solid-state amplifier module,which is mainly used to improve the unevenness of the output power of the rear stage traveling wave tube.With the development of the times,microwave power modules face more complex application scenarios and higher demand,solid-state drive front-end also faces new challenges.This makes the new structure and function of the equalizer gradually become the focus of research and hotspot to adapt to more use environments.This thesis firstly introduces the development of microwave power modules and equalizers at home and abroad,and briefly analyzes the equalizer theory.In order to improve the miniaturization of the equalizer,this thesis adopts the form of microstrip equalizer and designs an equalizer working at 10～16GHz based on the complementary open resonant ring(CSRR)unit circuit,which adopts a new resonant branch with good electromagnetic characteristics,small size,simple structure and wide application range,and has obvious miniaturization advantages compared with two equalizers in recent years;in order to improve the the adjustable function of the equalizer,this thesis adopts the form of microstrip equalizer,based on the vector synthesis theory,and the nonlinear characteristics of Schottky diode,designed a non-traditional resonant equalizer model of10～16GHz,and the use of branch line bridge for signal vector superposition,this equalizer are measured adjustable,the signal in the input and output ports phase superposition,so the echo is good,with the non-tunable equalizer Compared with the non-tunable equalizer,the adjustable equalizer is more suitable for industrial mass production;in order to improve the frequency deviation that may occur during the design and production of the equalizer,this thesis adopts the form of microstrip equalizer,based on gold wire bonding to change the ring resonator impedance,and designs a 6～18GHz equalizer that works at the same time,this equalizer changes the equivalent inductance of the ring resonator through gold wire bonding to achieve the frequency tunable function,with small size and simple structure.This is a small size,simple structure,and can effectively correct the frequency deviation phenomenon during the design and production of the equalizer by adjustable means.This thesis designs a dual-mode solid-state microwave amplifier driver module operating from 6 to18 GHz,with input power from-3 dBm to 3 dBm and output divided into two operating modes: mode 1 and mode 2,which are used to match the different gain curves of the equalization post-stage line wave tube.The maximum return is better than 10 dB,and the maximum rms is greater than 12 dB,which meets the requirements of the project index.