Title :
High Q ceramic dielectric resonator with planar spiral slot coupling
Author :
Verma, Rajesh ; Daya, K.S.
Author_Institution :
Dept. of Phys. & Comput. Sci., Dayalbagh Educ. Inst., Agra, India
Abstract :
A high quality factor (Q) unshielded ceramic dielectric resonator fed by a tapered coplanar waveguide and coupled through spiral slot structure designed at 8.5 GHz on RT-Duroid substrate is reported in this letter. Experimental Q × f obtained by using polycrystalline ceramics of CaTiO3-NdAlO3 (CTNA) and Ba(Zn1/3Ta2/3)O3 (BZT) dielectric pucks are 18,244.06 GHz and 72,055.20 GHz respectively. Results of the planar coupling method to DR are compared with the quality factors obtained by using cavity method for same dielectric samples.
Keywords :
cavity resonators; ceramics; coplanar waveguides; coupled circuits; dielectric resonators; microwave resonators; Ba(Zn0.33Ta0.66)O3; CaTiO3-NdAlO3; RT-duroid substrate; cavity method; dielectric puck; dielectric sample; frequency 18244.06 GHz; frequency 72055.20 GHz; frequency 8.5 GHz; high Q ceramic dielectric resonator; high quality factor unshielded ceramic dielectric resonator; planar coupling method; planar spiral slot coupling; polycrystalline ceramics; spiral slot structure; tapered coplanar waveguide; Cavity resonators; Ceramics; Couplings; Dielectrics; Q factor; Resonant frequency; Spirals; dielectric resonator; planar spiral slot; quality factor;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2011 IEEE
Conference_Location :
Kolkata
Print_ISBN :
978-1-4577-1098-8
DOI :
10.1109/AEMC.2011.6256782
