STF-08-91 ERAVANT | Alldatasheet

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Technical content

STF-08-91 Rev. 1.1 www.eravant.com | 501 Amapola Ave, Torrance, CA 90501 Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com Page | 1 SAGE Millimeter, Inc. F-Band, Faraday Isolator, 90° Twist Input Copyright © 2019 by Eravant Description: Model STF-08-91 is a full band Faraday isolator that operates from 90 to 140 GHz. The Faraday isolator is constructed with a longitudinal, magnetized ferrite rod that causes a Faraday rotation of the incoming RF signal. The Faraday isolator offers 30 dB typical isolation and 2.5 dB nominal insertion loss with good flatness. The return loss of the isolator is 14 dB. The input and output ports are WR-08 waveguides with UG-387/U-M flanges and features a 90° twist. Features:

  • Full Waveguide Band Operation
  • Moderate Insertion Loss
  • High Isolation
  • Instrumentation Grade
  • 90 Degree Configuration Applications:
  • Test Labs
  • Instrumentations
  • Sub-assemblies Electrical Specifications: Parameter Minimum Typical Maximum RF Frequency 90 GHz 140 GHz Insertion Loss 2.5 dB 3.2 dB Isolation 30 dB Return Loss 14 dB Power Handling 0.8 W (CW) 1.0 W (CW) Specification Temperature +25 °C Operation Temperature -40 °C +85 °C Mechanical Specifications: Item Specification RF Input and Output WR-08 Waveguide with UG-387/U-M Flange Waveguide Flange Material Brass Waveguide Flange Finish Gold Plated Cover Material Aluminum Cover Finish Black Anodized Weight 2.2 Oz Insertion Length 2.75” Outline TF-SF-9

STF-08-91 Rev. 1.1 www.eravant.com | 501 Amapola Ave, Torrance, CA 90501 Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com Page | 2 SAGE Millimeter, Inc. F-Band, Faraday Isolator, 90° Twist Input Copyright © 2019 by Eravant Mechanical Outline: (Unless otherwise specified, all dimensions are in inches [millimeters]) Note:

  • All data presented is collected from a sample lot. Actual data may vary unit to unit.
  • All testing was performed under +25 ˚C case temperature.
  • The standard model is offered under model number STF-08-S1.
  • The compact version is offered under model number STF-08-91-C.
  • Other custom mechanical configurations are available under different model numbers.
  • Eravant reserves the right to change the information presented without notice. Caution:
  • Exceeding absolute maximum ratings will damage the device.
  • The device is sensitive to magnetic fields. Always keep magnet fields 6 inches away.
  • Any foreign objects in the waveguide will cause performance degradation and possible device damage. -50 -45 -40 -35 -30 -25 -20 -15 -10 -10 90 95 100 105 110 115 120 125 130 135 140 Return Loss and Isolation (dB) Insertion Loss (dB) Frequency (GHz) Typical Performance vs Frequency Insertion Loss Input Return Loss Isolation Output Return Loss