ANTENNA ASSEMBLY, PORTABLE WIRELESS UNIT, AND PORTABLE TELEVISION

摘要

PROBLEM TO BE SOLVED: To provide a small and inexpensive wideband antenna assembly suitable for incorporation into a portable wireless apparatus. SOLUTION: The antenna assembly comprises a radiation conductor having a length substantially equal to the quarter-wavelength for a resonance frequency, and parallel conductors (coaxial cable or microstrip line) consisting of a pair of line conductors having a length shorter than the quarter-wavelength for the resonance frequency and arranged oppositely in parallel wherein one line conductor is connected with the radiation conductor and the other line conductor is connected with the feeder line. More specifically, forward end short circuit type parallel conductors are employed to function as an inductance component for a holy jewel conductor or as a capacitor component for the radiation conductor as forward end open type. COPYRIGHT: (C)2004,JPO&NCIPI