In this paper, a mix-mode hybrid coupler based on broadside-coupled asymmetric coplanar striplines (ACPSs) is proposed. The major advantages of this coupler are its broadband characteristic and ...

A compact planar phase shifter with ultra-wideband (UWB) performance and 180° differential phase shift is proposed. It utilizes a broadside-coupled microstrip/coplanar waveguide (CPW). Thus, the ...