Radiation characteristics of NRD compatible pyramidal horn antenna for multiple access LAN applications at 60GHz

摘要

A technique to control the radiation pattern of NRD guide compatible pyramidal horn antenna, which consists of tapered dielectric rod inserted into the horn, has been developed for the multiple access LAN applications at 60 GHz. It has been found that the phase distribution on the aperture of the horn is influenced by the dielectric rod, and thus, the radiation pattern can be changed by shifting the length of the dielectric rod inserted into the horn. By using such simple manner, the half-power beam-width can be controlled from 11° to 40°.