SAS-124-07506-F1

Rev. 1.2

Description:
Model SAS-124-07506-F1 is a D band, linear to circularpolarizer that operates at 121 GHz with a ±7 GHzbandwidth. The polarizer offers a typical insertion loss of
1.0 dB, an axial ratio of 1.1, and a return loss of 20 dB,respectively. The polarizer is fixed and can be used for
either right-handed or left-handed polarization dependingon the direction of the input signal. The polarizer is often
combined with Eravants’s rectangular to circular waveguide transition (SWT-06075-SB) and WR-06
conical horn antenna (SAC-2309-075-S2) for various system applications.

Features:••••

Applications:••••

Circular Waveguide Interface
Low Insertion Loss
Good Axial Ratio
LHCP or RHCP

Antenna Ranges
Waveguide polarization selection
Radar Systems
Communication Systems

Electrical Specifications:Parameter
Frequency
Insertion Loss
Axial Ratio
Return Loss
Specification Temperature
Operating Temperature

Minimum
114 GHz

Typical
121 GHz1.0 dB
1.1
20 dB+25 °CSAGE Millimeter, Inc.

Linear to Circular Polarizer, D Band, 114 to 128 GHz, 0.075” Diameter

Maximum
128 GHz-40 °C+85 °C

Mechanical Specifications:
Item
Waveguide
Body Material
FinishWeightInsertion Length
OutlineSpecification
0.075” Dia Circular Waveguide with UG-387/U-M Anti-Cocking Flange
BrassGold Plated
0.8 Oz1”
AS-FDB-075-A

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2021 by Eravant.

Page | 1

SAS-124-07506-F1

Rev. 1.2

Typical Performance vs. Frequency
0-1-2

Insertion Loss (dB)

-3-4-5-6-7-8-9-10114

115

116

117

118

119120121122123

124

125

126

127

Frequency (GHz)

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

128

SAGE Millimeter, Inc.

Linear to Circular Polarizer, D Band, 114 to 128 GHz, 0.075” Diameter

Note:••••All data presented is collected from a sample lot. Actual data may vary unit to unit.
All testing was performed under +25˚C room temperature.
The Polarizer is offered as LHCP. However, it can be used as RHCP by reversing the input andoutput ports.
Eravant reserves the right to change the information presented without notice.

Caution:•Any foreign objects in the antenna will cause performance degradation and possible device
damage.
www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com

Copyright © 2021 by Eravant.

Page | 2

SAS-124-07506-F1

Rev. 1.2

LHCP and RHCP Polarization Configuration Notes and Diagram:•••

The polarizer’s product label indicates the direction of Left-Handed Circular Polarization (LHCP).
An example configuration diagram is provided below. The diagram indicates the input andoutput ports and the orientation in which the polarizer is to be attached to the rest of thecomponents to obtain a LHCP signal at the output port.
The polarizer can be configured to obtain a Right-Handed Circular Polarized (RHCP) signal at theoutput port by reversing the input and output ports as shown in the second diagram.

SAGE Millimeter, Inc.

Linear to Circular Polarizer, D Band, 114 to 128 GHz, 0.075” Diameter

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2021 by Eravant.

Page | 3