STH-06SF-S1

Rev. 1.3

Description:
Model STH-06SF-S1 is a D Band harmonic mixer employing
single diode and broadband circuitry to deliver low
conversion loss and continuous frequency coverage for fullwaveguide band operations covering the frequency rangeof 110 to 170 GHz. The mixer extends the operation
frequency of test instruments like the spectrum analyzer
and frequency counter from 18 GHz or below to full D band
operations. Unlike the balanced harmonic mixer, modelnumbers SFH-06SFSF-A3 or SFH-06SFSF-A3-2, the spectrum
analyzer mixer does not have a built-in frequency diplexer.
Therefore, their LO and IF ports are combined to a common coaxial port where its LO and IF signals areshared. This feature provides a convenient connection ability when used with the spectrum analyzer or
frequency counter models that have a built-in diplexer, i.e., combined LO and IF port, such as themodels offered by Advantest, Anritsu, Rohde & Schwarz, some Keysight models, Tektronix and National
Instruments/Phase Matrix (EIP). However, the harmonic mixer can also be used for the spectrum
analyzers with separate LO and IF ports if a diplexer is used.

Features:•••Applications:•••

Full Waveguide Coverage
Combined LO and IF Port
Instrumentation GradePhase Lock Loops
Spectrum Analyzer with built-in Diplexer
Frequency Counter with built-in Diplexer

SAGE Millimeter, Inc.

D-Band Spectrum Analyzer Harmonic Mixer, Common LO/IF PortElectrical Specifications:Parameter
Frequency
IF Frequency
LO Frequency
LO PowerSensitivity
RF Input PowerSpecification Temperature
Operating Temperature

Minimum
110 GHzDC
4.0 GHz+10 dBm

Typical
1.0 GHz+13 dBm-65 dBm @ 1 kHz RBW-20 dBm+25 ˚C0 ˚CMaximum
170 GHz
2.0 GHz16.0 GHz+16 dBm+16 dBm+50 ˚C

Mechanical Specifications:
ItemRF PortIF and LO Port
Material
Finishing
WeightSize
OutlineSpecification
WR-06 Waveguide with UG-387/U-M Anti-Cocking Flange
SMA (F)
AluminumGold Plated
1.3 Oz1.00” (L) x 0.75” (W) x 0.70” (H)FD-D1-243-A

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 1

STH-06SF-S1Rev. 1.3

Detectable Power versus RF Frequency
Test Condition: LO Frequency: RF/30; LO Power: +16 dBm; IF: 300 MHz
0-10

Detectabble Power (dBm)-20-30-40-50-60-70-80
110

115

120

125

130

135140145

150

155160165

170

SAGE Millimeter, Inc.

D-Band Spectrum Analyzer Harmonic Mixer, Common LO/IF Port

RF Frequency (dB)Conversion Loss vs. RF Frequency
LO Frequency: RF/14; LO Power: +16 dBm; IF: 300 MHz
Tested with Tektronix Diplexer Model 015-0385-00
0-10Conversion Loss (dB)-20-30-40-50-60-70
110 113 116 119 122 125 128 131 134 137 140 143 146 149 152 155 158 161 164 167 170

RF Frequency (GHz)www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 2

STH-06SF-S1

Rev. 1.3

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches)

SAGE Millimeter, Inc.

D-Band Spectrum Analyzer Harmonic Mixer, Common LO/IF Port

Note:
•••••
•

All data presented is collected from a sample lot. Actual data may vary unit to unit.
An external diplexer is required where the spectrum analyzer do not have a built-in diplexer.
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 or odd harmonics of LO to yield the IF frequency in therange of DC to 4.0 GHz with different conversion loss.
All testing was performed under +25 ˚C case temperature.
Eravant 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. Eravant torquewrench, model SCH-08008-S1, is highly recommended.

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 3