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The Letter presents a wideband and low-loss transition from conductor-backed coplanar waveguide to a modified, conductor-backed coplanar strip transmission line. The measured insertion loss is less than 1 dB up to 4.8 GHz and the return loss is greater than 12 dB. To reduce undesired modes two dielectric layers are used between the circuit and the conductor backing.
Inspec keywords: strip line components; waveguide couplers; losses
Other keywords:
Subjects: Waveguide and microwave transmission line components