Abstract
In this paper, we present a rigorous full-wave analysis able to estimate exactly the resonant characteristics of stacked high Tc superconducting circular disk microstrip antenna. The superconducting patches are assumed to be embedded in a multilayered substrate containing isotropic and/or uniaxial anisotropic materials (the analysis is valid for an arbitrary number of layers). London’s equations and the two-fluid model of Gorter and Casimir are used in the calculation of the complex surface impedance of the superconducting circular disks. Numerical results are presented for a single layer structure as well as for two stacked circular disks fabricated on a double-layered substrate.
Highlights
The need for high data transmission rate coupled with ever increasing demand for mobile devices has generated a great interest in low cost, compact microwave and millimeterwave antennas exhibiting high gain and wide bandwidth
Passive microwave components are among the first practical devices fabricated from these high Tc materials in which the surface resistance is a measure of the device performance at any frequency [5]
The low surface resistance corresponds to a large quality factor and improved performance such as higher gain and lower insertion loss in passive microwave devices [7]
Summary
The need for high data transmission rate coupled with ever increasing demand for mobile devices has generated a great interest in low cost, compact microwave and millimeterwave antennas exhibiting high gain and wide bandwidth. Owing to their many attractive features and excellent advantages [1], microstrip antennas have attracted attention in both theoretical research and engineering applications over the past decades. The theoretical analysis presented in the current paper is valid for an arbitrary number of layers, we give here only numerical results for a single layer structure as well as for two-stacked circular disks fabricated on a double-layer substrate.
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