| abstract |
The present invention relates to compounds of the formula (I), where one or more of the groups A 1-5 denote a 1,4-naphthylene group or a 1,4-anthracenylene group and the other parameters are defined as in claim 1. The invention further relates to liquid crystal media that contain the title compounds, and to components containing said media for high-frequency technology, in particular phase shifters and microwave array antennas. |