Abstract: This communication proposes a radiation pattern reconfigurable circularly polarized antenna based on liquid dielectric. The antenna consists of a circularly polarized feeding antenna and a 3 ...

The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading the way. The magnetic compass is the last unknown sense in migrating animals.

When Santa is done delivering presents on Christmas Eve, he must get back home to the North Pole, even if it's snowing so hard that the reindeer can't see the way. He could use a compass, but then he ...