A broadside-edge-coupled vialess balun

Abstract

This paper presents the design procedure for a new two-level vialess balun configuration. Simple design equations are reported for designing the impedance transforming balun in broadside-edge-coupled configuration. The balun is realized in a six-coupled line two-layer topology with no ground connections and interconnecting vias. The simulated results are validated by full-wave electromagnetic simulation and found to be in good agreement.