A Novel Multi-Octave Differential Power Divider

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  • Author: C. F. Marki, V. D. Kodwani, F. A. Marki

A novel, multi-octave differential (180 Degree) power divider is described. The power divider circuit is based on a new kind of Magic-T circuit composed of a balun and two parallel coupled transmission lines. Results show that the proposed Magic-T circuit can achieve octave bandwidth with excellent isolation and balance. This fundamental Magic-T block is then used to create a multi-section 180 Degree power divider capable of multi-octave performance. A 2-12 GHz, 7-section design is experimentally evaluated which exhibits excellent performance in terms of isolation, return loss, insertion loss and amplitude/phase balance.