| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a waveguide transmission line converter in which an allowable range with respect to the deviation of frequency characteristics caused by processing accuracy variations is widened by improving the frequency characteristics. <P>SOLUTION: The waveguide transmission line converter includes a tubular shaped metal casing whose one end is provided with an opening and the other end is closed by a backshort plate; and a probe conductor including a conductor section; and a parasitic element that establishes electromagnetic coupling with the probe conductor and generates a resonance frequency different from the resonance frequency of the probe conductor. The conductor section extends through the surfaces of the metal casing except for the surface provided with the opening, and one end of the conductor section is connected to an external transmission line, and is parallel to and separated from the backshort plate by a distance of one fourth of a wavelength of a signal inputted from the transmission line, and is also parallel to a direction in which an electric field of electromagnetic wave inputted or outputted from the opening is generated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
