Electrically Tuned Microwave Devices Using Liquid Crystal Technology

Table 1

Properties of liquid crystals at 20°C temperature, as specified at the given operating frequency.

Samples	Permittivity		Dielectric anisotropy	Loss tangent		Operating frequency	Reference
	𝜀⟂	𝜀‖	Δ𝜀	tan 𝛿⟂	tan 𝛿‖	𝐹 (GHz)
K15 (5CB)	2.72	2.90	0.18	0.03	0.03	1–10	[28–31]
BL037	2.35	2.61	0.26	0.06	0.06	1–10	[28, 41]
BL006	2.62–2.69	3.11–3.12	0.49–0.43	0.015–0.007	0.035-0.036	4.8–8.7	[16]
E7	2.72	3.17	0.45	0.12	0.02	5-6	[43]
GT3-23001	2.46–2.50	3.28–3.30	0.82–0.80	0.0143	0.0038–0.004	13.5–19	[14, 54, 60]
GT3-24002	2.50	3.30	0.80	0.0123	0.0032	6–10	[62]