| abstract |
The present invention relates to aromatic isothiocyanates of formula U as defined in claim 1; It relates to liquid-crystalline media comprising one or more compounds of the formula U and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable ultra- Material structures and electron beam steering antennas such as phased array antennas. |