Dual mode bandpass filter with asymmetric transfer function

TitleDual mode bandpass filter with asymmetric transfer function
Publication TypeConference Paper
Year of Publication2005
AuthorsZhang, Y., K. A. Zaki, and J. A. Ruiz-Cruz
Conference NameProc. 2005 IEEE Antennas and Propagation Society International Symposium
Date PublishedJuly
Keywordsasymmetric elliptic filter, asymmetric transfer function, band-pass filters, Chebyshev filters, circular waveguides, coupling matrix, dual mode bandpass filter, dual mode circular waveguides, elliptic filters, ideal network, microwave filters, poles, poles and zeros, rotation operations, transfer function matrices, transmission zero, waveguide filters Chebyshev transfer function
AbstractWe demonstrate the feasibility of dual mode implementation of an asymmetric elliptic filter. A filter which has four poles and one transmission zero is synthesized from the general Chebyshev transfer function. The ideal electrical network of the longitudinal form is then obtained through several "rotation" operations on the initial coupling matrix. Finally, the dual mode circular waveguides are adopted to realize the ideal network.