An Experimental Study of a Regenerative Secondary Source of Microwave Energy

Abstract

To create systems for remote metering of electric energy consumption, it is necessary to design new types of active microwave devices based on secondary signal sources that implement control of the electromagnetic field intensity. Current advances in the theory of electronic wave circuits let us to simulate correctly nonlinear and wave processes in circuits. At the same time, to use any components it is necessary to estimate the potential for technical implementation of the required electrical and geometric parameters, combining and embedding possibilities for proposed design solutions in the modern electronic equipment. Therefore, such an engineering approach requires experimental verification for the original calculations obtained analytically. The article presents the results for experimental modeling of a secondary microwave signal source, which allows to study the phenomenon of electrical energy regeneration by a negatron, a bipolar element with negative resistance. The experiments was carried out on the basis of the P2-67 meter, which allows to identify clearly the type of amplitude-frequency characteristics of the verification model in the three-centimeter wave range. The obtained information on its operating in the reflective and pass-through mode substantiate the choice of the active element and the microstrip realization for the resonant tuning system, which simultaneously functioning as a supply circuit. The possibility for constructive synthesis of a test model using a serial 2A706 avalanche-span diode is shown. Such a secondary source provides effective and controlled variation of the intensity of the re-emitted signal by recuperating and amplifying microwave power in practice.