TRIPLE BAND STUBBY ANTENNA

摘要

PURPOSE: A triple band stubby antenna is provided to allow for a broadband and ease of antenna tuning, while reducing the length of the antenna. CONSTITUTION: A triple band stubby antenna comprises a first coil(L31) wound along the outer surface of a first dielectric(31) which is embedded in a cap and has a hollow internal space; and a second coil(L32) wound in the direction opposite to the wound direction of the first coil, along the outer surface of a second dielectric(32) accommodated in the hollow internal space of the first dielectric, wherein the second coil includes a long pitch coil(L32a) and a short pitch coil(L32b) having different pitches and which are connected in serial to a feed line.