SFH-28SFSF-A3-2

Rev. 1.2

SAGE Millimeter, Inc.

Ka-Band Harmonic Mixer, 4th Harmonics, Spectrum Analyzer
Description:
Model SFH-28SFSF-A3-2 is a Ka-Band balanced harmonic mixer
that is specially designed for use with spectrum analyzer series
with separate LO and IF ports. The mixer employs highperformance, GaAs Schottky diodes and a balanced configuration
to produce a superior RF performance. With an IF range of DC to1.6 GHz, the harmonic mixer uses the harmonic number 4 of a6.0 to 12.0 GHz LO at +16 dBm to translate 26.5 to 40 GHz. The
harmonic mixer has a typical conversion loss of 20 dB. The mixer
can be used as other even harmonic numbers, such as 6, 8, and10, etc. with various conversion loss performance. In general, thelower the harmonics, the lower the conversion loss.

Features:••••

Applications:•••

Full Waveguide Band Operation
No External Bias Required
Even Harmonic Detection
Calibrated for 4th Harmonic

Spectrum Analyzers
Frequency Meters
Phase Locked Loops

Electrical Specifications:Parameter
RF Frequency
LO Frequency
IF Frequency
Required LO Pumping PowerConversion Loss
Combined Damage RF and LO Power
Number of Harmonics*
Specification Temperature
Operation Temperature*Note: Other even harmonics can be used.

Minimum
26.5 GHz
6.0 GHz
DCTypical+16 dBm
20 dB

Maximum
40 GHz12.0 GHz
1.6 GHz+19 dBm+20 dBm

4+25 ˚C-40 ˚C+85 ˚C

Mechanical Specifications:
Item
RF PortLO PortIF PortCase Material
FinishWeightOutlineSpecification
WR-28 Waveguide with UG-599/U Flange
SMA (F)
SMA (F)
Brass
Gold Plated
5.6 Oz
FH-A2

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2020 by SAGE Millimeter, Inc.

Page | 1

SFH-28SFSF-A3-2

SAGE Millimeter, Inc.

Ka-Band Harmonic Mixer, 4th Harmonics, Spectrum Analyzer

Rev. 1.2

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 © 2020 by SAGE Millimeter, Inc.

Page | 2

SFH-28SFSF-A3-2

Rev. 1.2

Note:•••••All data presented is collected from a sample lot. Actual data may vary unit to unit.
The harmonic mixer is for small signal detection. The recommended the RF power range is -10
dBm or below.
The Harmonic mixer work in any even harmonics of LO to yield the IF frequency in the range of
DC to 1.6 GHz with different conversion loss.
All testing was performed under +25 ˚C case temperature.
SAGE Millimeter, Inc. reserves the right to change the information presented without notice.

Caution:••••Exceeding absolute maximum ratings of the mixer will damage the device.
Any foreign objects in the waveguide will degrade performance and/or damage the device.
The mixer is a static sensitive device. Always follow ESD rules when working with the mixer.
Proper torque, 8.0 ± 0.15 inch-pounds (0.92 ± 0.05 Nm), should be applied. SAGE Millimeter
torque wrench, model SCH-08008-S1, is highly recommended.

SAGE Millimeter, Inc.

Ka-Band Harmonic Mixer, 4th Harmonics, Spectrum Analyzer

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2020 by SAGE Millimeter, Inc.

Page | 3