SOF-1205-MI

Rev. 1.1

Description:
Model SOF-1205-MI is an E-Band, wide mechanical tuning
bandwidth Gunn oscillator that utilizes a high performance GaAs
Gunn diode and proprietary cavity design to deliver +5 dBm
typical power with low AM/FM noise and harmonic emissions.
The oscillator has a center frequency of 75 GHz and amechanical tuning range of ±10 GHz. Compared to its multiplierbased counterparts, the Gunn oscillator is a lower costalternative and a cleaner source. In addition, this model features
an integrated isolator to achieve a more stable performance.
The Gunn oscillator is equipped with a micrometer for quick frequency tuning when used as a bench topunit. Models with a self-locking set screw for frequency tuning are available under a different model
number for use in system integration applications. 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
Micrometer Tuner
Integrated Isolator

Test Sources
Signal Generation
Lab Test SetupsSAGE Millimeter, Inc.

E-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 65 to 85 GHz

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

Minimum
65 GHz0 °C

Typical75 GHz±10 GHz+5 dBm
+5 VDC
0.90 A+25 °C

Maximum
85 GHz+5.5 VDC+50 °C

Mechanical Specifications:
Item
RF PortBias Port
Case Material
FinishWeightOutlineSpecification
WR-12 Waveguide with UG-387/U Flange
SMA (F)
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 © 2019 by SAGE Millimeter, Inc.

Page | 1

SOF-1205-MI

Rev. 1.1

Frequency and Output Power vs. Micrometer Reading
Bias: +5 VDC / 900 mA
85

20Frequency (GHz)

80

1575

1070

565

Output Power (dBm)

Frequency (GHz)Power (dBm)

SAGE Millimeter, Inc.

E-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 65 to 85 GHz0250240230220210200190180170160150

140130Micrometer 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 © 2019 by SAGE Millimeter, Inc.

Page | 2

SOF-1205-MI

Rev. 1.1

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 75 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 +5.5 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.

SAGE Millimeter, Inc.

E-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 65 to 85 GHz

Appendix: Outline of Gunn Oscillator Regulator, Model SOR-R3

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2019 by SAGE Millimeter, Inc.

Page | 3