High frequency module and the radar device which include the guided wave structure, and the guided wave structure

摘要

The guided wave road which is one execution feature of this invention has, upper guided wave road 21 and mode converter 23 and. The high frequency signal it transmits this upper guided wave road 21, to 1st direction with TE10 mode. This mode converter 23 is formed, in order to connect to upper guided wave road 21 electromagnetically. The high frequency signal which upper guided wave road 21 is transmitted, from TE10 mode it converts this mode converter 23, to TM11 mode. This mode converter 23 1st direction transmits the high frequency signal to the 2nd direction which crosses. According to the guided wave road of this execution form, satisfactory transmission characteristic of the high frequency signal can be actualized.