Radiation pattern adjustment method of monopole antenna for mobile terminal

摘要

The present invention relates to a monopole antenna mounted on a mobile terminal for wireless communication, and is capable of transmitting and receiving with low path loss in a mobile terminal that transmits and receives radio waves in a multipath, thereby improving call quality, reception sensitivity, and transmission / reception success rate of the mobile terminal. A radiation pattern adjusting method of a monopole antenna for a portable terminal to improve.;Conventionally, in a mobile terminal using a monopole antenna, when adjusting the radiation pattern of the monopole antenna, the radiation pattern of the mobile terminal is controlled by selecting a monopole antenna suitable for the mobile terminal. However, when the monopole antenna is fixed to the portable terminal, the monopole antenna acts as an unbalanced dipole antenna due to the influence of the housing of the portable terminal, and thus the path loss of the transmission and reception radio wave is increased due to the failure of maintaining the omnidirectional radiation pattern. Since the call quality, reception sensitivity, and transmission / reception success rate of the terminal are reduced, and the type of monopole antenna is limited, it is very difficult to adjust only the type of the monopole antenna to make the omnidirectional radiation pattern.;The present invention can easily adjust the radiation pattern of the monopole antenna to the omni-directional in the system manufacturing step in the mobile terminal that transmits and receives the radio wave in the multi-path, so that the mobile terminal can transmit and receive the radio wave with low path loss, call quality of the mobile terminal, Improved reception sensitivity and transmission / reception success rate.