DIELECTRIC RESONATOR
Frequency & Q-value Measurement System

fqms1.gif (3073 bytes) fqms3.gif (3198 bytes)
fqms2.gif (4840 bytes)
When ¡÷B>30dB
Q= 2F
line.gif (73 bytes)
¡÷f(3dB)

Temperature Coefficient Measurement System of Dielectric Resonator(¦Óf)

fqms4.gif (1978 bytes) fqms5.gif (2400 bytes)

Measurement product
    If is measured by putting the STD Cavity. Resonator and support in the oven. The STD Cavity is placed in oven with Temp. At 25¡ãC for 2hrs and then f25 of the resonator is measured. After that the STD Cavity is heated in oven at 70¡ãC for 2hrs.f70 is measured.

¦Óf(ppm/¡ãC)=
¡÷f(Hz)
line.gif (73 bytes)
f25(MHz)¡Á¡÷T(¡ãC)
=

f70-f25
line.gif (73 bytes)

f25¡Á(70-25)

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