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Measurements

Swept Signal Oscillator of SMW series



BWO tube is shown installed in an 0.8T permanent magnet. Fully packaged swept signal oscillator 180-1100GHz. It consists of a BWO, OB-XX series, permanent magnet, mechanical tube alignment system and power supply
 
  • 180-1110 GHz in 7 bands
  • Full waveguide sweep in all bands
  • Fast sweep capability, 200 s typical
  • Fully packaged and automated
  • Remote controlled, phase lockable
  • High output power

Power Supply for 180-1100GHz BWO Tubes. Click here to get there.

Applications

  • Automated instrumentation subsystems
  • Laboratory measurement and test equipment
  • Source for network analysers, plasma diagnostics and spectrometry
  • Sweeping heterodyne receivers, gyrotron frequency and spectrum analysis

Description

SMW-XX series is a fully packaged swept signal generator. It consists of a BWO tube, OB-XX series, permanent or electric magnet, mechanical tube alignment system and power supply. An optional, fully closed water cooling system is available. On the photo, the BWO tube is shown installed in an 0.8T permanent magnet. The power supply is shown in the right photo (upper cover is removed).

The sweeper unit contains all electronic circuitry and power supplies required to operate the BWO. The BWO tube is fully protected from application of improper operating voltages. A water flow alarm system provides protection from overheating, and the system includes a high voltage monitor. An input jack allows output frequency to be controlled by an external voltage, if desired, and the generator can be phase locked to other equipment. Each sweep generator is supplied with individual calibration data for control voltage vs. output power vs. frequency. Typical relationships between these parameters are shown in the plots below for 180-260 GHz model SMW-24:

The sweeper is supplied with an individual calibration data for control voltage vs. output power vs. frequency
The results presented above were obtained under a contract with JET (Joint European Torus, the world's largest tokamak).

Specifications
Swept Signal Oscillator of SMW series specs, Table 1
* Minimal output power depends on tube usage, and can be different for
various tubes of the same model

Common Specification

Swept Signal Oscillator of SMW series specs, Table 2
** Stability specified is with the permanent magnet configuration.

PC microcomputer Controller and software are available upon request.

How to Order:

Specify Model Number SMW-x-A, where

x - frequency range
A - AC input voltage.

Example: To order BWO sweeper with the following specification: operation frequency
258-375 GHz, input AC voltage 110ACV, it should be ordered as SMW -30-110