SOB-69305217-12-S1

Rev. 1.0

Description:
Model SOB-69305217-12-S1 is an E-band, bias tuned Gunn
oscillator that utilizes a high performance GaAs Gunn diodeand proprietary cavity design to deliver +17 dBm typicalpower, useful for phase-locking and electrical tuning
applications. The oscillator features a bias frequency tuning
range of 68.25 to 68.7.5 GHz and delivers low AM/FM noiseand harmonic emissions. Compared to its counterparts,
such as multiplier based sources, the Gunn oscillator is alower cost and cleaner source. The Gunn oscillator’sfrequency can also be tuned mechanically. The Gunn oscillator is equipped with a self-locking set screw
for frequency trimming. 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
Mechanical Tunable

Communication Systems
Phase Locked Sources
FMCW Radar

Electrical Specifications:Parameter
Center Frequency
Power Output
Mechanical Tuning Range
Bias Tuning Range (+5.0 to +6.0 VDC)
Bias Voltage
Bias Tuning Speed
Bias Current
Specification Temperature
Operating Temperature

Minimum
68.25 GHz

+4.5 VDC

Typical68.5 GHz+17 dBm±100 MHz±250 MHz+5.5 VDC
100 µS
750 mA+25 ˚CSAGE Millimeter, Inc.

E-Band Bias Tuned Gunn Oscillator, 68.5 GHz, ±250 MHz, +17 dBm

Maximum
68.75 GHz

0 ˚C

+6.2 VDC+50 ˚C

Mechanical Specifications:
Item
RF PortExternal Bias
Mechanical Tuning
Body Material
FinishWeightOutlineSpecification
WR-12 Waveguide with UG-387/Flange
Solder Pin
Self-Locking Set Screw
AluminumGold Plated
3.0 OzOM-SE-Cwww.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

SOB-69305217-12-S1

Rev. 1.0

Typical Frequency and Power Output vs. Bias Voltage
Bias: +5.0 to +6.0Vdc/640 mA
692268.9

21Frequency (GHz)

68.8

20
19

68.6

18

68.5

1768.4

1668.31568.21468.1

1368

125

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

6

Power (dBm)

Frequency (GHz)Power (dBm)
68.7

SAGE Millimeter, Inc.

E-Band Bias Tuned Gunn Oscillator, 68.5 GHz, ±250 MHz, +17 dBm

Bias Voltage (VDC)

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

SOB-69305217-12-S1

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.
The bias tuning feature is used for electrical tuning and phase lock loop applications.
The tuning speed can be improved per request.
The mechanical tuning feature is provided for frequency trimming only. To tune the oscillator
more than the specified bandwidth mechanically will damage or degrade the oscillator.
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 +6.2 Volts, otherwise the oscillator will be damages.
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.

SAGE Millimeter, Inc.

E-Band Bias Tuned Gunn Oscillator, 68.5 GHz, ±250 MHz, +17 dBm

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