SOF-1917-MI

Rev. 1.1

Description:
Model SOF-1917-MI is a U-Band, wide mechanical tuning
bandwidth Gunn oscillator that utilizes a high performance
GaAs Gunn diode and proprietary cavity design to deliver +17
dBm typical power with low AM/FM noise and harmonicemissions. The oscillator has a center frequency of 50 GHz anda mechanical tuning range of ±6 GHz. Compared to its
multiplier based counterparts, the Gunn oscillator is a lower
cost alternative and a cleaner source. In addition, this modelfeatures an integrated isolator to achieve a more stable performance. By adding a Gunn oscillator
modulator/regulator and temperature heater, the performance of the oscillator can be enhanced evenfurther.

Features:••••

Applications:•••

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

Test Sources
Signal Generation
Lab Test Setups

Electrical Specifications:Parameter
Center Frequency
Mechanical Tuning Range
Output Power
Bias Voltage
Bias Current
Specification Temperature
Case Temperature

Minimum
44 GHzTypical50 GHz±6 GHz+17 dBm+4.2 VDC
700 mA+25 °C

0 °C

SAGE Millimeter, Inc.

U-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 44 to 56 GHz

Maximum
56 GHz+5.2 VDC+50 °C

Mechanical Specifications:
ItemRF Port
Bias Port
Mechanical Tuning
Case Material
FinishWeight
OutlineSpecification
WR-19 Waveguide with UG-383/U-M Flange
SMA (F)
Micrometer
AluminumGold Plated
9.5 OzOM-MU-C-I

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 1

SOF-1917-MI

Rev. 1.1

Frequency and Power Output vs. Micrometer Reading
Bias: +4.2 VDC /680 mA
57.0

32Frequency (GHz)28

Power (dBm)

24

50.0

201646.5
1243.08100120

140

160

180

200

220

Micrometer Reading (Mils)

240

Power (dBm)

Frequency (GHz)53.5

SAGE Millimeter, Inc.

U-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 44 to 56 GHz

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 © 2018 by SAGE Millimeter, Inc.

Page | 2SOF-1917-MIRev. 1.1

Note:•••••All data presented is collected from a sample lot. It is for illustration only. Actual data varies unitto unit.
The data given above was tested under case temperature +35 °C.
Always set the micrometer reading to around 50 GHz when turning on the oscillator to ensure thecorrect mode operation.
SAGE Millimeter Gunn oscillator regulator, model SOR-R3, is highly recommended to prevent theGunn oscillator damage due to possible over voltage and/or reverse bias. The outline of theregulator is shown in the appendix section below.
SAGE Millimeter, Inc. reserves the right to change the information presented without notice.

Caution:•••••Reversing polarity will destroy the device.
Bias voltage should not exceed +5.2 Volts.
The case temperature of the device should not exceed +50 ˚C. Use an additional heatsink or fan
if necessary.
When handling coax connectors, proper torque, 8.0 ± 0.4 inch-pounds (0.90 ± 0.02 Nm), should
be applied. SAGE Millimeter torque wrench, 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-R3

SAGE Millimeter, Inc.

U-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 44 to 56 GHz

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 3