High-Q factor frequency-temperature compensated sapphire Bragg distributed resonator

摘要

A new sapphire TE/sub 10/spl delta// resonator was constructed with a novel support structure made from sapphire and rutile. The amount of rutile was chosen to act as Bragg reflectors to reduce conductor losses while simultaneously annulling the temperature coefficient of frequency. The resonator was confirmed to have an annulment temperature of -8/spl deg/C and Q-factor of 65,000 limited by the dielectric loss tangent.