Waveguide Multiplexer With Generalized Cut Chebyshev Filter Is Developed

With the frequency become more and more destinty ,The frequency divided into kinds of communication systems become more and more narrow. Design narrow-band,little region of space, high restraination in stop-band passive components is necessity. Waveguide multiplexer and general chebyshev filter with transmission zeros are the passive components.They is studied in domesty and overseas.This thesis gave emphasis to the synthesis and design of general chebyshev filter with transmission zeros and waveguide multiplexer. And studied related theories and technologies.The synthesis and design of the conventional filters (Butterworth, Chebshev,cauer); Further more, waveguide multiplexer and the general Chebshev filters with transmission zeros were introduced. Multipath coupling Equivalent Circuit are constructed and the relative phase shifts of multiple paths are observed to produce the known responses of the cascaded triplet and quadruplet sections. The validation and efficiency of the synthesis method was demonstrated.In conclusion,it turn out that the CAD package could design filter and multiplexer effectivly and accuratly. It would be helpful in engineering applications.