ISOLATION ANTENNAS TO RADIATE FORWARD DIRECTION

摘要

An isolation antenna to radiate in a forward direction is provided to reduce an influence from a diffusing matter placed at a rear part by making primary beams of transmission/receipt of the antenna face a front direction. In an isolation antenna to radiate in a forward direction, an antenna has the same polarization and channel characteristics, generates a radiation electromagnetic wave and transmits a primary beam in the forward direction or receives the primary beam of an incident electromagnetic wave from the forward direction, and has a symmetrical structure on the basis of vertical and parallel axes. An antenna supporting member, which is symmetrically mounted on the reference of the vertical center axis of the antenna for making a diffused wave caused by a transmission signal received symmetrically with respect to the received signal, supports the antenna to increase the degree of isolation between the transmission/receipt signals.