high frequency stability
Stable fixed frequency LO
and test equipment
and Hi-Rel systems
series CIDO-XX cavity-stabilized IMPATT diode oscillators
provide high frequency stability and low phase noise capabilities.
They combine the extended frequency range and high output
power of IMPATT oscillators with stability and phase nose
capabilities provided by cavity-stabilized Gunn oscillators.
These sources are available in 8 waveguide bands covering
26 to 150 GHz. The source consist of a waveguide cavity
IMPATT oscillator which is coupled to a high Q, high order
mode cylindrical cavity. The cylindrical cavity is made
of Invar to improve the frequency stability over a broad
temperature range. Operating temperature range is -50
to +50 癈. Low pass EMI filter and current stabilizer
included for reliable, trouble-free operation. The device
supplied with an integral isolator.
CIDO-XX models are supplied mounted on a finned
heatsink These oscillators can maintain their operating
frequency within few MegaHertz over the normal operating
temperature range without a temperature controller or
heater. An optional built-in temperature controlled
heater can be supplied to extend the operating temperature
range. The frequency can be held in a much narrower
range. Custom configurations and performance characteristics
different from standard models are available.
are presented for the middle frequency of the frequency band.
of frequency adjustment is about few MHz. The adjustment is
provided on the factory according to customer requirements.
Optionally the following items would be supplied to meet
Injection-Locked Amplifiers IILA series to increase the
or amplitude modulator on the base of fast P-I-N switch
regulator on the base of Voltage Controlled Attenuator VCVA
supply for AC Input Voltages 110 V, 60Hz; 220 V, 50 Hz
How to Order:
Specify Model Number CIDO-xxA-B-C-D
XX- waveguide band (WR-Number)
- flange type : R = round or S = square (WR-28 only)
- operating frequency in GHz
C - output power in mW
- AC voltage power supply options
0= no power supply 1 = 110 VAC/60Hz ,or 2 = 220 VAC/50Hz, or 3 =
100VAC/50Hz power supplies
Example: To order oscillator meets the following specification:
waveguide WR-10, round flange, operation frequency 94 GHz,
output power 20mW, input AC voltage 110ACV, should be ordered