Antenna for cordless mobile electronic equipment consists of metal band bent into U-shape with sharp corners and unequal-length sides with smaller side connected to substrate

摘要

The U-shaped antenna (7) has a short arm (9) with a first portion (12) near the bottom of the U-shape in contact with a signal feed conductor (16). The signal feed conductor is deposited on a substrate (10) for an electronic building block. A second portion (13) is in contact with an earth connection (11). A third, middle portion (14) is without an electric contact. A vertical portion (15) connects the short arm of the U-shape with the freestanding long arm (8).