MOBILE TRANSMITTER

摘要

PROBLEM TO BE SOLVED: To realize dual polarized plane communication using a mobile transmitter. SOLUTION: A slot antenna 32 and a loop antenna 33 formed on a transmission circuit board 3 as a conductor pattern are used for the mobile transmitter and a high frequency switch 34 switches the antenna so as to allow the selected antenna to transmit the same data frame. Mounting the antennas to emit two orthogonal polarized waves on the transmitter side in this way can increase the stability of communication by the mobile transmitter.