SOM-75320305-12-MI

Rev. 1.1

Description:
Model SOM-75320305-12-MI is an E-Band, mechanicallytuned Gunn oscillator that utilizes a high performance GaAs
Gunn diode and proprietary cavity design to deliver +5 dBm
typical power. The oscillator features a frequency tuning
range of 65 to 85 GHz and delivers low AM/FM noise andharmonic emissions. Compared to its counterparts, such as
multiplier based sources, the Gunn oscillator is a lower costand cleaner source. In addition, this model features an integrated isolator to achieve a more stableperformance. The Gunn oscillator’s frequency can also be tuned by varying the bias voltage, which isuseful for phase-locking and electrical-tuning applications. The Gunn oscillator is equipped with amicrometer for quick frequency tuning and test bench applications. Models with a self-locking set screwfor system integration are available under a different model number. The performance of the oscillator
can be further enhanced by adding a Gunn oscillator modulator/regulator and temperature heater.

Features:•••

Applications:•••

Low AM/FM Noise and Harmonics
Broad Mechanical Tuning Bandwidth
Integrated Isolator

Test Sources
Signal Generation
Lab Test Setups

SAGE Millimeter, Inc.

E-Band Mechanically Tuned Gunn Oscillator with Isolator, 65 to 85 GHz

Electrical Specifications:Parameter
Center Frequency
Output Power
Mechanical Tuning Range
Bias Tuning Range (+4.0 to +5.0 VDC)
Bias Voltage
Bias Current
Specification Temperature
Case Temperature

Minimum
65 GHz0°C

Typical75 GHz+5 dBm±10 GHz±100 MHz+5 VDC
900 mA+25°C

Maximum
85 GHz+5.5 VDC+50°C

Mechanical Specifications:
Item
RF PortBias Port
Mechanical Tuning
Case Material
FinishWeightOutlineSpecification
WR-12 Waveguide with UG-387/U Flange
SMA (F) and/or Soldered Pin
Micrometer
AluminumGold Plated
10.3 Oz
OF-ME-C-I

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2015 by SAGE Millimeter, Inc.

Page | 1

SOM-75320305-12-MI

Rev. 1.1

Frequency and Output Power vs. Micrometer Reading
Bias: +5 VDC /900 mA
8520
Frequency (GHz)

80

1575

1070

565Output Power (dBm)

Frequency (GHz)Power (dBm)

SAGE Millimeter, Inc.

E-Band Mechanically Tuned Gunn Oscillator with Isolator, 65 to 85 GHz0250230210190

170150130

Micrometer Reading (Mils)

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches [millimeters])

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2015 by SAGE Millimeter, Inc.

Page | 2

SOM-75320305-12-MI

Rev. 1.1

Note:• All data presented is collected from a sample lot. Actual data may vary unit to unit, slightly.
• The data given above was tested under case temperature 35°C.
• Always set micrometer reading to approximately 75.0 GHz when turning on the oscillator to avoidwrong mode operation.
• The SAGE Millimeter Gunn oscillator regulator SOR-R3 is highly recommended for over voltage andreverse bias protection. The outline of the model SOR-R3 is shown in below.
• The bias tuning feature can be used for electrical tuning and phase lock loop applications.
• SAGE Millimeter, Inc. reserves the right to change the information presented without notice.
Caution:• Reversing polarity will destroy the device.
• Bias voltage should never exceed +5.5 Volts.
• The case temperature of the device should never exceed +50˚C. Use an additional heatsink or fan ifnecessary.
• Proper torque, 8.0 ± 0.4 inch-pounds (0.90 ± 0.02 Nm), should be applied. SAGE Millimeter torquewrench, model SCH-08008-S1, is highly recommended.
• Any foreign objects in the waveguide will destroy the device.

Appendix: Outline of Gunn Oscillator Regulator, Model SOR-R3SAGE Millimeter, Inc.

E-Band Mechanically Tuned Gunn Oscillator with Isolator, 65 to 85 GHz

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2015 by SAGE Millimeter, Inc.

Page | 3