AUTOMATICALLY SWITCHABLE CIRCUITRY FOR MEASURING SCATTERING MATRICES OF TWO-PORTS

摘要

Circuit for measuring the diffusion matrix of microwave dual-port elements, containing a microwave generator, directional coupler, a microprocessor block used for control and calculation of results, and a reflecting block, characterized in that the output of the generator (G) is connected to the first directional coupler (SK1), whose coupled line is connected to a three-state switched-phase reflecting block (B03φ) while the second port of the coupled line is connected to one of two inputs of an adder (Σ), while the main line of the directional coupler (SK1) is connected to the input of the first switch (P1), whose first output (1) is connected to the second directional coupler (SK2), while the second output (2) is connected to the third directional coupler (SK3) with matched main lines, while the line coupled to the input of the second directional coupler (SK2) is connected to the input (WE) of the measured dual-port element (Sx), and the line coupled to the input of the third directional coupler (SK3) is connected to the output (WY) of that dual-port element (Sx), and in addition the second port of the coupled line of the second directional coupler (SK2) is connected to the first input (3) of the second switch (P2), and the second port of the coupled line of the third directional coupler (SK3) is connected to the second input of the second switch (P2), whose output (5) is connected to the second input port of the adder (Σ), to whose output port is connected a detective power meter (DMM) coupled to the input of the microprocessor control block......IMAGE