Whispering Gallery mode microwave characterization of Ba(Mg-1/3,Ta-2/3)O-3dielectric resonators

Authors
Ratheesh, R Sebastian, MT Tobar, ME Hartnett, J Blair, DG
Citation
R. Ratheesh et al., Whispering Gallery mode microwave characterization of Ba(Mg-1/3,Ta-2/3)O-3dielectric resonators, J PHYS D, 32(21), 1999, pp. 2821-2826
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN journal
00223727 → ACNP
Volume
32
Issue
21
Year of publication
1999
Pages
2821 - 2826
Database
ISI
SICI code
0022-3727(19991107)32:21<2821:WGMMCO>2.0.ZU;2-I
Abstract
The microwave dielectric properties of Ba(Mg-1/3, Ta-2/3)O-3 (BMT) ceramic resonators are studied by the Whispering Gallery mode and conventional meth ods in the frequency range 6-18 GHz. The BMT samples show a maximum quality factor of 25 000 at 13.024 GHz (Q x f = 325 000). The temperature variatio n of the quality factor was measured in the range -14 to 47 degrees C. The temperature variation of resonant frequencies for different modes have also been measured accurately using a peltier circuit.