Frequency

Voltage variable attenuators offer up to 60dB attenuation

29th July 2016
Daisy Stapley-Bunten
Datasheets

The provider of RF, microwave and millimetre wave products, Pasternack, introduces a line of Voltage Variable Attenuators (VVAs) offering up to 60dB of attenuation across broad frequencies from 400MHz to 18GHz. This line of VVAs is most commonly deployed in applications such as electronic warfare, instrumentation, point-to-point and point-to-multipoint radios, fibre optic and broadband telecomms, microwave radio and VSAT, military radios, radar, ECM, SATCOM and sensors, and R&D.

In most communications systems, the RF components used (transmitters, receivers, mixers, multipliers, attenuators, amplifiers, VCO’s, phase locked loops, etc.) may require specific power levels to run optimally. These power levels may differ from one component to the next in a system network and may require the attenuation level to be finely adjusted to account for changes in received signal levels or to optimally match the input power into a sensitive circuit. Pasternack’s PIN diode-based VVAs provide accurate control and broadband flatness where the output level can be adjusted continuously by varying an analog voltage on the input control line. These VVA’s are suited for use with variable gain amplifiers, power level control, feed-forward amplifiers and Automatic Level Control (ALC) circuits.

The portfolio of voltage variable attenuators from Pasternack includes six models covering octave broadband frequencies from 400MHz to 18GHz while boasting low insertion loss and wide dynamic range. Moreover, these modules display excellent VSWR over all attenuation levels. CW input power is rated up to +23dBm. Each unit is designed into rugged coaxial packages to meet MIL-STD-202 environmental conditions.

“A high-rel design like these VVAs normally commands long lead-times from OEMs, however, Pasternack has each model available from stock for immediate shipment,” says Tim Galla, Active RF Components Product Manager, Pasternack.

Pasternack’s voltage variable attenuators are in-stock and ready to ship today.

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