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| MILLIMETER-WAVE BANDSTOP AND DIRECTIONAL FILTERS USING PLANAR WHISPERING-GALLERY MODES DIELECTRIC RESONATORS AND MICROSTRIP LINE |
| Wu Jianqiang; Liu Ge; Liu Shenggang |
| University of Electronic Science and Technology of China, Chengdu 610054 |
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Abstract 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.
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Received: 21 November 1994
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1996, Vol. 18 
