Title :
Waveguide E-plane bandpass filters with Butterworth characteristics
Author :
Jin, Hui ; Liu, Fah
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Anhui, China
Abstract :
Based on the Butterworth prototype, a practical design method of maximally flat bandpass filter is introduced for the structure of waveguide E-plane metal insert in this paper. The synthesized filter structure with Butterworth characteristics is analyzed and measured to show the validity of the method. The two groups of results are presented and compared to be in good accordance with each other. The K ∼ f curve is presented and used to explain the bandwidth degradation.
Keywords :
Butterworth filters; band-pass filters; millimetre wave filters; waveguide filters; Butterworth characteristics; bandwidth degradation; maximally flat bandpass filter; metal insert; millimeter-wave filters; synthesized filter structure; waveguide E-plane bandpass filters; Band pass filters; Bandwidth; Chebyshev approximation; Frequency; Insertion loss; Inverters; Passband; Prototypes; Rectangular waveguides; Strips;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187875
