Title :
Measurements of a high-Q TE/sub 0,1,/spl delta// frequency-temperature compensated sapphire Bragg distributed resonator
Author :
Locke, C.R. ; Tobar, M.E. ; Ivanov, E.N. ; Hartnett, J.G. ; Piquet, O. ; Cros, D.
Author_Institution :
Dept. of Phys., Western Australia Univ., Nedlands, WA, Australia
Abstract :
A TE/sub 01/spl delta// 9.00 GHz sapphire resonator was constructed with sapphire and rutile supports designed to act as a Bragg distributed resonator (patent pending) to reduce cavity losses. The amount of rutile was chosen using FEM to annul the temperature coefficient of frequency. Here we confirm the resonator to have an annulment temperature of -7.8/spl deg/C and Q-factor of 65,000 limited by the dielectric loss tangent.
Keywords :
Q-factor; cavity resonators; compensation; dielectric losses; dielectric resonators; finite element analysis; sapphire; -7.8 C; 9 GHz; Al/sub 2/O/sub 3/-TiO/sub 2/; Bragg distributed resonator; FEM; Q-factor; annulment temperature; cavity losses; dielectric loss tangent; high-Q TE/sub 01/spl delta// frequency-temperature compensated sapphire Bragg distributed resonator; rutile supports; sapphire resonator; sapphire supports; temperature coefficient of frequency annulment; Dielectric materials; Dielectric measurements; Distributed Bragg reflectors; Frequency measurement; Microwave devices; Microwave frequencies; Predictive models; Q factor; Tellurium; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034981
