SOM-77304313-10-M1

Rev. 1.0

Description:
Model SOM-77304313-10-M1 is a W-Band, mechanically tuned
Gunn oscillator that utilizes a high performance GaAs Gunn diodeand proprietary cavity design to deliver +13 dBm typical power.
The oscillator features a frequency tuning range of 74.5 to 78.5
GHz and delivers low AM/FM noise and harmonic emissions.
Compared to its counterparts, such as multiplier based sources,
the Gunn oscillator is a lower cost and cleaner source. The Gunn oscillator’s frequency can also be tuned
by varying the bias voltage, which is useful for phase-locking and electrical-tuning applications. The
Gunn oscillator is equipped with a micrometer for quick frequency tuning and test bench applications.
Models with a self-locking set screw for system integration are available under a different model
number. The performance of the oscillator can be further enhanced by adding an optional isolator,
Gunn oscillator modulator/regulator and temperature heater.

Features:••

Applications:•••

Low AM/FM Noise and Harmonics
Bias Tunable

Test Sources
Signal Generation
Lab Test Setups

SAGE Millimeter, Inc.

W-Band Mechanically Tuned Gunn Oscillator, 4 GHz Tuning BandwidthElectrical Specifications:Parameter
Center Frequency
Power Output
Mechanical Tuning Range
Bias Tuning Range (+4.0 to +5.0 VDC)
Bias Voltage
Bias Current
Specification Temperature
Operating Temperature

Minimum+14 dBm

Typical76.5 GHz+15 dBm±2 GHz±100 MHz+4.5 VDC
750 mA+25˚C

0˚C

Maximum+5.5 VDC+50˚C

Mechanical Specifications:
Item
RF PortDC BiasMechanical Tuning
Body Material
FinishWeightOutlineSpecification
WR-10 Waveguide with UG-387/U Flange
SMA(F)
Micrometer
AluminumGold Plated3.6 Oz
OM-ME

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2017 by SAGE Millimeter, Inc.

Page | 1

SOM-77304313-10-M1

Rev. 1.0

Typical Frequency and Power Output vs. Micrometer Reading
78.7

3578.230

77.72577.22076.71576.210Frequency (GHz)75.7

5Power (dBm)

75.2

074.7

-574.2-1001020304050607080
Micrometer Reading (Mils)

90100

110120Mechanical Outline: (Unless otherwise specified, all dimensions are in inches)Power (dBm)

Frequency (GHz)

Bias: +4.5 VDC/750 mA

SAGE Millimeter, Inc.

W-Band Mechanically Tuned Gunn Oscillator, 4 GHz Tuning Bandwidthwww.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2017 by SAGE Millimeter, Inc.

Page | 2

SOM-77304313-10-M1

Rev. 1.0

Note:• All data presented is collected from a sample lot. Actual data may vary unit to unit.
• The data given above was tested under case temperature 35°C.
• Always set micrometer reading to approximately 76.5 GHz when turning on the oscillator to avoid
wrong 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 ± 0.15 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.

SAGE Millimeter, Inc.

W-Band Mechanically Tuned Gunn Oscillator, 4 GHz Tuning Bandwidth

Appendix: The Outline of the 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 © 2017 by SAGE Millimeter, Inc.

Page | 3