Abstract
A high-permittivity ceramics (ε r=93)is used to fabricate a rectangular waveguide resonator of square cross section. Two degenerate TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">101</sub> and TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">011</sub> , -like mode of the λ/4 resonator is coupled each other through various perturbations such as a corner cut, a current path on the open end face or a slit on the shorted end face. Excitation of the resonator is also of many kinds, resulting in much option for the BPF configuration. A two-stage BPF is designed using the experimental results on the coupling factor and external Q. It is mounted on a printed circuit board with 3.3GHz of the center frequency and 30MHz of the bandwidth.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
