In this paper, a new simultaneously phase- and frequency- tunable coupler is proposed with the enhancement in both bandwidth and phase tunable range. Two tunable capacitors are loaded on the two ...

This letter presents a novel 3-dB transformer-based quadrature coupler (TFQC) that is based on lumped inductors connected between the coupler ports. Compared to previously reported 3-dB TFQCs that ...

Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance ...