Title :
Design of an interdigital hairpin bandpass filter utilizing a model of coupled slots
Author :
Deleniv, Anatoli N. ; Gashinova, Marina S. ; Vendik, Irina B. ; Eriksson, Anders
Author_Institution :
Dept. of Microelectron., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
9/1/2002 12:00:00 AM
Abstract :
A design methodology of an interdigital hairpin filter based on a full-wave model of coupled slots is developed and discussed. It is applied to design a five-pole bandpass filter centered at 1.7 GHz; with 1.75% relative bandwidth. A low level of in-band insertion loss is achieved using high-temperature superconductor electrodes. Experimental data are presented and compared with the simulated response. A model of coupled slots embedded in a layered lossy media is developed on the basis of the spectral-domain approach. The multiport admittance (impedance) matrix of the coupled slots is formulated using the E-H duality principle. It is successfully applied in the design of the filter
Keywords :
UHF filters; band-pass filters; coplanar waveguide components; electric admittance; impedance matrix; losses; microwave filters; passive filters; spectral-domain analysis; superconducting filters; superconducting microwave devices; waveguide filters; 1.7 GHz; CPW; E-H duality principle; HTS electrodes; coplanar line; coupled slots; design methodology; fabrication; five-pole bandpass filter; full-wave model; high-temperature superconductor electrodes; impedance matrix; in-band insertion loss; interdigital hairpin bandpass filter; layered lossy media; microwave filters; multiport admittance matrix; slot-line hairpin resonator; spectral-domain approach; Admittance; Band pass filters; Bandwidth; Coplanar waveguides; Coupling circuits; Electrodes; High temperature superconductors; Insertion loss; Microwave filters; Superconducting filters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2002.802329
