Performance of two‐pole bandpass filters photodefined on double‐sided Y‐Ba‐Cu‐O AND Tl‐Ba‐Ca‐Cu‐O thin films

Abstract

The performance of 7.3‐GHz two‐pole bandpass filters (5% bandwidth) fabricated on double‐sided Y‐Ba‐Cu‐O and Tl‐Ba‐Ca‐Cu‐O thin films deposited on LaAlO3 is discussed. At 77 K, the Tl‐Ba‐Ca‐Cu‐O and Y‐Ba‐Cu‐O superconducting filters exhibited minimum passband insertion losses of 0.3 and 1.2 dB, respectively. An insertion loss of 3.4 dB was measured for an all‐gold filter at 77 K. © 1993 John Wiley & Sons, Inc.

A metal-organic chemical vapor deposition approach to double-sided Tl2Ba2Ca1Cu2O8superconducting films on LaAlO3(100) substrates

“…Therefore, the development of low-cost processes represents a crucial step for large-scale applications. To date, efforts to produce single-sided (SS) [9][10][11][12] and double-sided (DS) [13][14][15] thin films of Tl-based superconductors have been largely focused on physical vapor deposition (PVD) techniques.…”