MILLIMETER-WAVE BANDSTOP AND DIRECTIONAL FILTERS USING PLANAR WHISPERING-GALLERY MODES DIELECTRIC RESONATORS AND MICROSTRIP LINE
微带型回音壁模介质谐振器带阻方向滤波器

This paper reports the utilization of a new type of planar whispering-gallery modes dielectric resonators and microstrip line for the design of Ka-band bandstop and directional filters. The analysis is based on the traveling wave ring resonator. Finally, experimental results of bandstop and directrional filters in Ka-band are given, which show such resonators are very suitable for use in millimeter-wave microstrip integrated circuits.