A BROAD-BAND MULTICHANNEL POWER ADDER BASED ON TRANSMISSION-LINES

The design of transistor amplifiers with high output power requires broadband multichannel single-step adders with N inputs ranging from 12 to 16. The most suitable devices for these purposes are those that have rotational symmetry with respect to their inputs, since they possess the simplest circuit design and identical electrical characteristics from each input side. The basic principles of the construction of such adders were presented in [1]. However, a serious drawback of these is the nonoptimal decoupling circuit. This paper proposes a version of an adder with improved characteristics obtained by modernizing this circuit.