Design of Odd Equal Divider Power Synthesis Circuit

Abstract

As a core part of the power amplifier, the power synthesis unit is concerned to meet the launch requirement of electromagnetic equipment. This paper present two kinds of design methods covering 6 to 18 GHz. One approach is adopt an unequal powder combination with a 1:2 between 2-way powder divider and impedance to realize odd equal power output by high and low impedance circuit matching; an alternate approach is a sector broadband synthesis circuit structure of multi-section to achieve higher power signal transmission through cavity or micro-strip circuit model. It can be seen from the simulation results that for both synthesis circuits, the interpolation loss is less than 0.5 dB and the out-put wave ratio is less than 1.3, which meets the high power synthesis demand of broadband power amplifier.