| 摘要 |
A body-wearable antenna system 1 with at least two directional antenna elements 2 and 4 mountable in a equi-spaced distributed array around the user's body (e.g. back and front), wherein antenna elements operate in phase to deliver a combined omnidirectional performance radiating away from the user's body. Antenna elements 2 and 4 are respectively securely mounted within radomes 3 and 5 and worn on the front and back of the user. The antenna elements can be planar inverted F-shaped (PIFA) antennas and the radomes may be made from hard plastics. The PIFA antennas may have dual band capability by providing a slot in the radiating top plate of the PIFA and wide band frequency operation may be achieved by the use of parasitic resonators. Parts of the antennas may be made from flexible materials. Each antenna element is connected via a connector (not shown) to a coaxial cable 8 which electrically connects the antenna elements to a 2:1 zero degree phase power divider 7 which is connected to a power source held within equipment casing 6. |
