TRANSMISSION-TYPE WAVEGUIDE BANDPASS FILTER AND DESIGN METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a bandpass filter having a wide-transmission band.;SOLUTION: A transmission-type waveguide bandpass filter 90 changes the local even-mode characteristic impedance Z_even(z) and an odd-mode characteristic impedance Z_odd(z), with respect to the characteristic impedance Z₀ of a waveguide, with varying and nonuniform width w(z) and with a varying and nonuniform interval s(z). Here, the characteristic impedance of the waveguide is the impedance at the port of the transmission-type waveguide bandpass filter 90.;COPYRIGHT: (C)2010,JPO&INPIT