Review Article
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 | | | | tan | tan | (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] |
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