STP-18-28-M1

Rev 1.1

Description:
Model STP-18-28-M1 is a Ka-Band micrometer
driven phase shifter that covers the frequency
range of common 5G bands from 24 to 44 GHz. The
phase shifter features a precision micrometer dial
with a knurled head locking screw, which allows forstable, repeatable settings that can be locked at
any phase shift value. The phase shifter is an ideal
piece of equipment in waveguide systems wherebroadband phase shifting is required. The phaseshifter exhibits a 0.5 dB typical insertion loss and anadjustable phase range of up to 180 degrees.

Features:••••

Applications:

Broadband Coverage from 24 to 44 GHz
Head Locking Screw
Precision Machined Housing
Convenient Mechanical Setting••••

5G mmWave Systems
Test Lab
Instrumentations
Manual Test Set

SAGE Millimeter, Inc.

Ka-Band Micrometer Driven Phase Shifter, Head Locking Screw, 24 to 44 GHz

Electrical Specifications:Parameter
Frequency Range
Insertion Loss
Phase Shifting Range
Return Loss
Power HandlingSpecification Temperature
Operating Temperature

Minimum
24 GHzTypical
0.5 dB
0 to 180°
20 dB
1 W (CW)+25 ˚C-40 ˚C

Maximum
44 GHz

1.2 W (CW)+85 ˚C

Mechanical Specifications:
ItemRF PortsSetting Type
Micrometer Pitch
Micrometer Resolution
Insertion Length
Material
FinishWeightOutline

Specification
WR-28 Waveguide with UG-599/U Flange
Head Locking Screw Type Micrometer
0.5mm
0.01mm3.0”
BrassGold Plated
6.0 OzTA-MA

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

STP-18-28-M1

Rev 1.1

Typical Measured Insertion Loss and Return Loss vs Frequency00-0.5-5-10

Insertion Loss
Return Loss

-1.5-15-2-20-2.5-25-3-30-3.5-35-4-40
2426

2830

32

34

36

38

40

42

44

Frequency (GHz)

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

Return Loss (dB)

Insertion Loss (dB)

-1

SAGE Millimeter, Inc.

Ka-Band Micrometer Driven Phase Shifter, Head Locking Screw, 24 to 44 GHz

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

STP-18-28-M1

Rev 1.1

Note:
••
•

All data presented is collected from a sample lot. Actual data may vary unit to unit, slightly.
All testing was performed under +25 °C case temperature.
SAGE Millimeter, Inc. reserves the right to change the information presented without notice.

Caution:••••RF power should never exceed 1.2 W.
Forcing the micrometer down after encountering resistance may damage the dielectric sheet
inside. This will cause permanent performance degradation and decrease the long-term stability
and repeatability of the device.
Attempting to adjust the micrometer setting while the head locking screw is engaged may
damage the micrometer and decrease the long-term stability and repeatability of the device.
Any foreign objects in the waveguide will cause performance degradation and possible device
damage.

SAGE Millimeter, Inc.

Ka-Band Micrometer Driven Phase Shifter, Head Locking Screw, 24 to 44 GHz

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