SOM-48304320-22-MI

Rev. 1.0

Description:
Model SOM-48304320-22-MI is a Q-Band, mechanically tuned
Gunn oscillator that utilizes a high performance GaAs Gunn diodeand proprietary cavity design to deliver +20 dBm typical power. Theoscillator features a frequency tuning range of 46 to 50 GHz anddelivers low AM/FM noise and harmonic emissions. Compared toits 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.

Q-Band Mechanically Tuned Gunn Oscillator with Isolator, 46 to 50 GHz

Electrical 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

0°C

Typical48.0 GHz+20 dBm±2 GHz±10 MHz+5.0 VDC
880 mA+25°C

Maximum+5.2 VDC+50°C

Mechanical Specifications:
Item
RF PortBias Port
Mechanical Tuning
Case Material
FinishWeight
OutlineSpecificationWR-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 © 2017 by SAGE Millimeter, Inc.

Page | 1

SOM-48304320-22-MI

Rev. 1.0

Typical Output Frequency and Power vs. Micrometer Reading
Bias: +5 VDC/880 mA
5330

5228
Frequency
26Power50

2449

2248

2047

1846

164514145

155165

175

185

195

Micrometer Reading (Mils)205Power Output (dBm)

Frequency (GHz)51

SAGE Millimeter, Inc.

Q-Band Mechanically Tuned Gunn Oscillator with Isolator, 46 to 50 GHz

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches)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-48304320-22-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 38.0 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.
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.

SAGE Millimeter, Inc.

Q-Band Mechanically Tuned Gunn Oscillator with Isolator, 46 to 50 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 © 2017 by SAGE Millimeter, Inc.

Page | 3