Title :
Frequency-temperature compensation in Ti/sup 3+/ and Ti/sup 4+/ doped sapphire whispering gallery mode resonators
Author :
Hartnett, John G. ; Tobar, Michael E. ; Mann, Anthony G. ; Ivanov, Eugene N. ; Krupka, Jerzy ; Geyer, Richard
Author_Institution :
Dept. of Phys., Western Australia Univ., Nedlands, WA, Australia
fDate :
7/1/1999 12:00:00 AM
Abstract :
A new method of compensating the frequency-temperature dependence of high-and monolithic sapphire dielectric resonators near liquid nitrogen temperature is presented. This is achieved by doping monocrystalline sapphire with Ti/sup 3+/ ions. This technique offers significant advantages over other methods.
Keywords :
compensation; dielectric resonators; sapphire; titanium; Al/sub 2/O/sub 3/:Ti; dielectric resonators; frequency-temperature compensation; liquid nitrogen temperature; monocrystalline sapphire; whispering gallery mode resonators; Copper; Dielectric liquids; Doping; Fluctuations; Frequency; NIST; Oscillators; Temperature dependence; Temperature distribution; Whispering gallery modes;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
