Title :
High isolation, planar filters using EBG substrates
Author :
Chappell, William J. ; Little, Matthew P. ; Katehi, Linda P B
Author_Institution :
Radiat. Lab., Michigan Univ., Ann Arbor, MI, USA
fDate :
6/1/2001 12:00:00 AM
Abstract :
The concept of electromagnetic bandgaps (EBGs) has been utilized to develop a high-quality filter that can be integrated monolithically with other components due to a reduced height, planar design. Coupling adjacent defect elements in a periodic lattice creates a filter characterized by its ease of fabrication, high-Q performance, high-port isolation, and integrability to planar or 3-D circuit architectures. The filter proof of concept has been demonstrated in a metallo-dielectric lattice. The measured and simulated results of 2-, 3-, and 6-pole filters are presented at 10.7 GHz.
Keywords :
Q-factor; band-pass filters; microwave filters; passive filters; periodic structures; resonator filters; 10.7 GHz; 2-pole filters; 3-pole filters; 6-pole filters; EBG substrates; EM bandgap substrates; SHF; coupling adjacent defect elements; electromagnetic bandgaps; high isolation planar filters; high-Q performance; high-port isolation; high-quality filter; metallo-dielectric lattice; monolithic integration; periodic lattice; Band pass filters; Dielectric substrates; Fabrication; Frequency measurement; Insertion loss; Lattices; Loss measurement; Metamaterials; Periodic structures; Resonator filters;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.928927
