Analysis of High 𝑇_𝑐 Superconducting Rectangular Microstrip Patches over Ground Planes with Rectangular Apertures in Substrates Containing Anisotropic Materials

Table 3

Resonant frequencies of high 𝑇_𝑐 superconducting rectangular microstrip patch printed on anisotropic Pyrolytic boron nitride over ground planes with and without rectangular apertures; 𝑎×𝑏=1.5 cm × 1 cm, 𝑑 = 1 mm, 𝜎_𝑛=10⁶ S/m, 𝜆₀=140 nm, 𝑇_𝑐=89 K, 𝑒=350 nm, and 𝑇=50 K.

Aperture size 𝑎𝑎×𝑏𝑎	Resonant frequencies (GHz)		Fractional change (%)
	Considering anisotropy (𝜀𝑥,𝜀𝑧)=(5.12,3.4)	Neglecting anisotropy (𝜀𝑥,𝜀𝑧)=(3.4,3.4)
0	7.399	7.531	1.78
0.25𝑎×0.25𝑏	7.044	7.165	1.72
0.5𝑎×0.5𝑏	5.935	6.052	1.97
0.75𝑎×0.75𝑏	4.955	5.089	2.70
𝑎×𝑏	4.277	4.510	5.45