SOF-2813-M1

Rev. 1.2

Description:
Model SOF-2813-M1 is a Ka-Band, wide mechanical tuning
bandwidth Gunn oscillator that utilizes a high-performance GaAs
Gunn diode and proprietary cavity design to deliver +13 dBm
typical power with low AM/FM noise and harmonic emissions. Theoscillator has a center frequency of 33.5 GHz and a mechanicaltuning range of ±4 GHz. Compared to its multiplier based
counterparts, the Gunn oscillator is a lower cost alternative and acleaner source. The Gunn oscillator is equipped with a micrometerfor quick frequency tuning when used as a bench top unit. 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
an optional integrated isolator, Gunn oscillator modulator/regulator, and temperature heater.

Features:•••

Applications:•••

Low AM/FM Noise and Harmonics
Broad Mechanical Tuning Bandwidth
Micrometer Tuner

Test Sources
Signal Generation
Lab Test Setups

SAGE Millimeter, Inc.

Ka-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 29.5 to 37.5 GHz

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

Minimum
29.5 GHz

Typical33.5 GHz±4 GHz+13 dBm+5.0 VDC
350 mA+25°C

0°C

Maximum
37.5 GHz+5.5 VDC+50°C

Mechanical Specifications:
Item
RF PortBias Port
Case Material
FinishWeightOutlineSpecification
WR-28 Waveguide with UG-599/U Flange
SMA (F)
AluminumGold Plated
3 Oz
OF-MA-C-M

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-2813-M1

Rev. 1.2

Frequency and Power Output vs. Micrometer Reading
Bias: +5 VDC/289 mA
3830

37Frequency (GHz)2536
Power( dBm)

20

34
33

1532
31

1030
29528
27055

60

65

7075

8085

9095

100

105

110

115

120

125

130

135

Power (dBm)

Frequency (GHz)35

SAGE Millimeter, Inc.

Ka-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 29.5 to 37.5 GHz

Micrometer 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-2813-M1

Rev. 1.2

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 micrometer reading to around 33.5 GHz when turning on the oscillator to ensure correctmode 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 fanif 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.

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

SAGE Millimeter, Inc.

Ka-Band Wide Mechanical Tuning Bandwidth Gunn Oscillator, 29.5 to 37.5 GHz

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