SOF-2220-MI

Rev. 1.0

Description:
Model SOF-2220-MI is a Q-Band, wide mechanicaltuning bandwidth Gunn oscillator that utilizes a highperformance GaAs Gunn diode and proprietary cavity
design to deliver +20 dBm typical power with low
AM/FM noise and harmonic emissions. The oscillator hasa center frequency of 38 GHz and a mechanical tuning
range of ±5 GHz. Compared to its multiplier based
counterparts, the Gunn oscillator is a lower costalternative 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

SAGE Millimeter, Inc.

Q-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 33 to 43 GHz

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

Minimum

0 °C

Typical38 GHz±5 GHz+20 dBm+4.2 VDC
700 mA+25 °C

Maximum+5.2 VDC+50 °C

Mechanical Specifications:
ItemRF Port
Bias Port
Mechanical Tuning
Case Material
FinishWeightOutline

Specification
WR-22 Waveguide with UG-383/U Flange
SMA (F) and/or Soldered Pin
Micrometer
AluminumGold Plated
9.5 OzOM-MQ-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-2220-MI

Rev. 1.0

Frequency and Power Output vs. Micrometer Reading
Bias: +4.2 VDC /880 mA
4428
Frequency (GHz)42264024382236203418321630

14110

120

130

140150160 170 180 190 200
Micrometer Reading (Mils)

210

220

230

240

250

Power (dBm)

Frequency (GHz)Power (dBm)

SAGE Millimeter, Inc.

Q-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 33 to 43 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-2220-MI

Rev. 1.0

Note:•••••All data presented is collected from a sample lot. It is for illustration only. Actual data varies unit
to unit.
The data given above was tested under case temperature +35 °C.
Always set the micrometer reading to around 38 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 ± 0.15 inch-pounds (0.92 ± 0.05 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.

Q-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 33 to 43 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