Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)
- Volume 25 Issue 1
- /
- Pages.1-7
- /
- 1988
- /
- 1016-135X(pISSN)
Dielectric Waveguide Channel Dropping Filter
유전체 도파관을 이용한 채널 드로핑 필터
Abstract
A new type broadband channel dropping filter which has a potential use as a millimeter-wave multiplexer has been realized by properly connecting 3-dB directional couplers and bandstop filters. 90\ulcorner3-dB directional couplers have been designed using two nonuniformly coupled dielectric image guides, while bandstop filters with Chebyshev passbands have been designed using dielectric image-guide grating structure. Effective dielectric constant method has been aplied to the image-guide dispersion analysis and to the design of bandstop gratings and 3-dB couplers. Experimental results in excellent agreement with computed responses are demonstrated.
Keywords