Patent ID: 8040291
Filing Date: 2011-10-18
Classification: H01Q,Y10T

Abstract:
1. An F-inverted compact antenna for ultra low volume Wireless Sensor Networks (WSN), comprising: a ground plane board, a dielectric block attached to a surface of said ground plane board at a predetermined location thereof, and a helically contoured member attached to said dielectric block and disposed with an axis of said helically contoured member extending substantially in parallel to said surface of said ground plane board, said helically contoured member including a pre-wound wire portion having a first end and a second end and a plurality of coils between said first and second ends, and a wire part coupled at a tapping end thereof to said pre-wound wire portion at a predetermined tapping point, wherein said first end of said pre-wound wire portion and another end of said wire part opposite to said tapping end thereof are coupled respectively to feeding and shorting points of said compact antenna.