Connectorized VCO Package
M
V 1.00
1
Features
I
Extremely Linear Tuning
I
High Tuning Speed
I
Low Phase Noise
I
Field Replaceable Connectors
I
Hermetically Sealed
I
Suitable for High Reliability Applications
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Custom Designs Available
Primary Applications
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Radar Receivers
I
Communications Systems
I
Countermeasure Systems
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Satellite Systems
VCOs have a wide variety of applications where very fast
tuning speeds are required. This feature along with our superior
output power flatness performance is critical for requirements
in radar receivers or for rapid generation of jamming signals in
ECM transmitters. When high frequency stability is required
for radar, communications synthesizers or frequency
converters, these VCOs may be integrated into phase lock loop
circuitry. Low phase noise performance of the VCO, with our
highly linear tuning, simplifies loop filter design and enables
the designer to achieve superior synthesizer performance.
These VCOs can be qualified for high reliability and military
requirements. The accompanying table is an example of our
standard VCO designs. A wide range of custom designs are
also available with output frequencies to 18 GHz. Please
contact the factory to discuss your requirements.
Description
These designs utilize silicon bipolar devices as the negative
resistance generator (passive/active frequency doubler used for
high frequency requirement). The frequency of operation is
determined by a varactor diode that serves as a voltage variable
capacitor. Silicon hyperabrupt varactors offer the lowest phase
noise performance. Careful selection of the varactor diodes
manufactured in-house provide linear monotonic tuning
characteristics requiring only simple external driver circuits.
M/A-COM-UK's range of highly linear connectorized voltage
controlled
oscillators
provides
performance in a rugged hermetic package. This range of
VCOs is constructed using discrete chip device integrated onto
a conventional alumina substrate or on a Glass Microwave
Integrated Circuit (GMIC
TM
) packaged into a machined
housing. These packages are then hermetically sealed using
laser-welding processes. The result is a compact rugged design
suitable for most severe environmental conditions found in
military and hi-rel applications. The coaxial connectors are
removable allowing the devices to be integrated directly into
microstrip or stripline circuits.
excellent
phase
noise
“B” Package