SOM-51302315-19-MI

Rev. 1.0

Description:
Model SOM-51302315-19-MI is a U-Band, mechanically tuned
Gunn oscillator that utilizes a high performance GaAs Gunn diodeand proprietary cavity design to deliver +15 dBm minimum power.
The oscillator features a frequency tuning range of 50 to 52 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. In addition, this modelfeatures an integrated isolator to achieve a more stableperformance. The Gunn oscillator’s frequency can also be tuned by varying the bias voltage, which isuseful for phase-locking and electrical-tuning applications. The Gunn oscillator is equipped with amicrometer for quick frequency tuning and test bench applications. Models with a self-locking set screwfor system integration are available under a different model number. 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
Integrated Isolator

Test Sources
Signal Generation
Lab Test Setups

SAGE Millimeter, Inc.

U-Band Mechanically Tuned Gunn Oscillator with Isolator, 50 to 52 GHzElectrical Specifications:Parameter
Center Frequency
Output Power
Mechanical Tuning Range
Bias Tuning Range (+4.0 to +5.0 VDC)
Bias Voltage
Bias Current
Specification Temperature
Case Temperature

Minimum+15 dBm

Typical51 GHz+16 dBm±1 GHz±10 MHz+4.2 VDC
700 mA+25°C

0°C

Maximum+5.2 VDC+50°C

Mechanical Specifications:
Item
RF PortBias Port
Mechanical Tuning
Case Material
FinishWeight
OutlineSpecification
WR-19 Waveguide with UG-383/U-M Flange
SMA (F) and/or Soldered Pin
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 © 2017 by SAGE Millimeter, Inc.

Page | 1

SOM-51302315-19-MI

Rev. 1.0

Frequency and Power Output vs. Micrometer Reading
Bias: +4.2 VDC / 680 mA
53.0

24.0

Frequency (GHz)

52.0

22.0

51.0

20.0

50.0

18.0

49.0

16.0

48.0
100.0

105.0

110.0

115.0

120.0

125.0

130.0

14.0
135.0

Micrometer Reading (Mils)

Power (dBm)

Frequency (GHz)Power (dBm)

SAGE Millimeter, Inc.

U-Band Mechanically Tuned Gunn Oscillator with Isolator, 50 to 52 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 © 2017 by SAGE Millimeter, Inc.

Page | 2

SOM-51302315-19-MI

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 50.0 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.

SAGE Millimeter, Inc.

U-Band Mechanically Tuned Gunn Oscillator with Isolator, 50 to 52 GHz

Caution: Reversing polarity will destroy the device.
 Bias voltage should never exceed +5.2 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 (0.92 ± 0.05 Nm), should be applied. SAGE Millimeter torquewrench, 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

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

SOM-51302315-19-MI

Rev. 1.0

SAGE Millimeter, Inc.

U-Band Mechanically Tuned Gunn Oscillator with Isolator, 50 to 52 GHz

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 | 4