HELICAL ANTENNA FOR MOBILE PHONE

摘要

A helical antenna for a wireless communication terminal is provided to obtain a wide radiation pattern or beam width, a high antenna gain, and a broadband characteristic. A helical antenna for a wireless communication terminal includes an antenna unit(10), and a feeding unit(20). The antenna unit is composed of N numbers of conductors(12) spirally wound around the outer wall of a cylindrical dielectric(11). The feeding unit(20) has power distributors(21-23) generating power with the same amplitudes and different phases, and supplies the power whose phases are divided by the power distributors(21-23) to each conductor(12) of the antenna unit(10).