Title :
Novel helical resonator filter structures
Author :
Fiedziuszko, S.J. ; Kwok, R.S.
Author_Institution :
Space Syst./LORAL, Palo Alto, CA, USA
Abstract :
Helical resonator filters are well-known and widely used at lower microwave frequencies. Two novel helical resonator filter configurations for applications in wireless and satellite communication systems are described in this paper. This includes miniature filters utilizing single mode, high dielectric constant material loaded helical resonators, as well as higher order dual mode helical resonator loaded cavities. Both configurations can be used to realize advanced filters with non-adjacent couplings. The basic filter configurations are discussed and experimental results are presented.
Keywords :
UHF filters; cavity resonators; passive filters; permittivity; resonator filters; UHF type; dual mode helical resonator loaded cavities; helical resonator filter structures; high dielectric constant material loaded resonators; higher order resonator loaded cavities; lower microwave frequencies; miniature filters; nonadjacent couplings; satellite communication systems; single mode helical resonators; wireless communication systems; Ceramics; Chebyshev approximation; Dielectric constant; Dielectric loss measurement; Dielectric losses; High-K gate dielectrics; Metallization; Microwave filters; Q factor; Resonator filters;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700618
