Patent ID: 8633864

Claim:
An antenna, located within an enclosure, said antenna including one or more arms, each arm having a length including a physical length corresponding to the distance along said arm between a feed point for receiving a signal source of a signal to be transmitted and an endpoint of the respective arm, and an electrical length corresponding to an intended frequency band of transmission, where at different points along said physical length of each of the arms of the antenna a source of external loading, separate from the signal source, has a variable effect, and where at different points along said physical length of each of the arms of the antenna, the antenna has a relatively high impedance area and a relatively low impedance area, wherein said enclosure includes one or more anticipated points of contact, where the source of external loading is brought into proximity with said enclosure, and wherein each of the one or more arms are constructed and arranged to locate the relatively high impedance areas along the physical length of a respective one of the one or more arms of the antenna at least a predetermined distance from the one or more anticipated points of contact, and the relatively low impedance areas along the physical length of the respective one of the one or more arms of the antenna are located more proximate the anticipated points of contact than the relatively high impedance area along the physical length of the respective one of the one or more arms of the antenna.