Title :
Microstrip stepped impedance lowpass filters based on the maxwell-wagner polarization mechanism
Author :
Prodromakis, Themistoklis ; Papavassiliou, Christos ; Michelakis, Kostis
Author_Institution :
Dept. of Electr. & Electron. Eng., Circuits & Syst. Group, Imperial Coll. London, London
Abstract :
We present a low pass stepped impedance filter which is based on a single microstrip line of uniform width. The impedance of the line is influenced by the region of the substrate on which the filter section is disposed. A large high-to-low impedance ratio is achieved by application of the Maxwell-Wagner polarization mechanism which results into a colossal effective electric permittivity. This method is competitive to other implementations as it is fully compatible with standard CMOS technologies, exhibits a large attenuation factor in the stop band and results into a compact design.
Keywords :
CMOS integrated circuits; low-pass filters; microstrip filters; polarisation; CMOS technologies; Maxwell-Wagner polarization mechanism; electric permittivity; high-to-low impedance ratio; microstrip stepped impedance lowpass filters; Attenuation; Band pass filters; Biomedical engineering; CMOS technology; Dielectric substrates; Impedance; Low pass filters; Microstrip filters; Permittivity; Polarization;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541493
