Miniature superconducting coplanar strip antennas for microwave and mm-wave applications

Miniaturization of components in wireless communications is constrained by the inefficiency of the antenna element and its feeding-matching circuitry and the high Q-factors associated with electrically small antenna systems. High temperature superconductors (HTS) permit miniaturization by reduction of dissipation. This paper discusses the use of HTS in a new class of coplanar radiating structures, with superior gain and bandwidth performance and potential applications as miniature antennas at VHF-UHF and elements in monolithic MM-wave phased arrays. A hybrid technique that combines transmission line theory and spectral domain method of moments (MM) is also briefly discussed and employed in the analysis of linear arrays of folded dipoles. (5 pages)