ANALYSIS AND DESIGN OF SPURLINE BANDSTOP FILTERS.
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The chain matrices of spurline bandstop filters using asymmetrical two lines and symmetrical three lines in an inhomogeneous medium were derived and used for accurate filter design. One-section spurline bandstop filters at 26. 5 to 40 GHz have been designed and tested. There is an excellent agreement between the experimental results and those predicted theoretically. To minimize the discontinuity and obtain a very compact structure, these filters have been computer-optimized to fit within the width of transmission lines. The responses of these filters are shown.
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