Synthesis design of ultra-wideband (UWB) bandpass filters on planar transmission lines
Date of Issue2009
School of Electrical and Electronic Engineering
The objective of this PhD dissertation is to describe the design and implementation of high performance ultra-wideband (UWB) bandpass filters on planar transmission-line structures. With synthesis methodology, the insertion loss function of the proposed transmission-line model can be derived and analyzed to exhibit UWB bandpass or quasihigh- pass filtering behavior with Chebyshev equal-ripple responses in the main passband. Therefore, the element values involved in the networks can be calculated and the dimensions of the filter can be determined without tedious full-wave electromagnetic (EM) simulations. With geometrical variation of the initial filter, the overall circuitry size can be reduced and cross-coupling route can be introduced to enhance the filter selectivity. The synthesis approach offers the designers an alternative way to design UWB bandpass filters rapidly and efficiently.
DRNTU::Engineering::Electrical and electronic engineering
Nanyang Technological University