| abstract |
The present invention relates to a 1,4-diethynylbenzene derivative having a substituent at the 2,3-position of the benzene ring (claims, see Formula I), a liquid crystal medium comprising the compound, and a high frequency component comprising the medium. In particular, it relates to high frequency components (particularly antennas) in the gigahertz range. The liquid crystal medium is used for the phase change of microwaves, for example, for tunable phase-array antennas. |