Rev: C | Copyright © 2020 - 2022, 2025 Marki Microwave LLC.

General Description

MPD-0226SM is a MMIC 2-way Wilkinson power divider. Passive GaAs MMIC technology allows production of smaller constructions that replace larger form factor circuit board constructions. Tight fabrication tolerances result in less unit to unit variation than traditional power divider technologies, allowing for accurate simulations using the provided S3P file taken from measured production units. Power dividers are passive reciprocal devices that can be used either as power combiners or as power dividers. Applications include Radar, Satcom, EW and test equipment. The MPD-0226SM is available as a 4 X 4 mm QFN package. Evaluation boards are also available.

Features

  • 2 GHz to 26.5 GHz In-phase Power splitting
  • 20 dB Typical Output to Output Isolation
  • Outstanding phase and amplitude balance
  • RoHS Compliant

Functional Block Diagram

Block Diagram
Photo of MPD-0226SM

Electrical Performance Summary

ParameterTypUnit
Frequency Range2 to 26.5GHz
Phase Balance 2°
Excess Insertion Loss 1.5dB
No. Ways Wilkinson 1:2-
RF Power Handling as a Power Divider 20W
Amplitude Balance 0.2dB
Isolation 20dB

Summary only – refer to the Electrical Specifications, Absolute Maximum Ratings, and Recommended Operating Range tables for complete details.

Part Ordering Options

Part NumberDescriptionPackagePacking SizeGreen StatusProduct LifecycleExport Classification
MPD-0226SM2-26.5 GHz MMIC 2-way Wilkinson Power Divider/CombinerQFN-

REACH

RoHS

ReleasedEAR99
EVAL-MPD-0226Evaluation Board, 2-26.5 GHz MMIC 2-way Power Divider/CombinerEVAL-

REACH

RoHS

ReleasedEAR99
MPD-0226-TRTape and Reel, 2-26.5 GHz MMIC 2-way Wilkinson Power Divider/CombinerQFN7"

REACH

RoHS

ReleasedEAR99

Table Of Contents

Typical Performance Plots

Total Insertion loss (Common to output port) graph for MPD-0226SM
Return loss for common port and output ports graph for MPD-0226SM
Amplitude balance between output ports graph for MPD-0226SM
Phase balance between output ports graph for MPD-0226SM
Isolation between differential ports graph for MPD-0226SM

Specifications

Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C. All measured data is taken from the eval board without de-embedding of the connectors and traces.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Frequency Range-2 26.5---GHz
Amplitude Balance -2 26.5-0.20.8dB
Excess Insertion Loss 1-2 20-1.54dB
Excess Insertion Loss 2-20 26.5-36dB
Impedance -- --50-Ω
Isolation -2 26.5-20-dB
Nominal Phase Shift -2 26.5-0-°
Nominal Power Splitting -2 26.5-3-dB
Phase Balance -2 26.5-28.5°
VSWR -2 26.5-1.25--

[1][2] Excess Insertion Loss = (Input Port to Common Port Insertion Loss) - 3dB

Absolute Maximum Ratings

The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.

ParameterMaximum RatingUnit
DC Current 60mA
Maximum Operating Temperature 100°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Minimum Storage Temperature -65°C
RF Power Handling as a Power Combiner 12W
RF Power Handling as a Power Divider 220W

[1] Based on 3W failure with out of phase signals at room temperature at 2.5GHz with matched loads.

[2] Based >40W Power handling test as a splitter without failure at room temperature at 2.5GHz with matched loads.

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-4 x 4 mm
Moisture Sensitivity Level-MSL 1

Port Configuration and Functions

Port Diagram

A bottom-up view of the MPD-0226SM’s SM package outline drawing is shown below. The MMIC Power dividers are passive reciprocal devices allowing either power splitting or power combining.

Diagram of the port configuration for MPD-0226SM

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
PadGround SM package ground path is provided through the ground paddle.Equivalent circuit for the Ground
Pin 1Output 1 The output 1 port is DC short to the other two ports and open to ground.Equivalent circuit for the Output 1
Pin 13Input/Common The common port is DC short to the other two ports and open to ground.Equivalent circuit for the Input/Common
Pin 5Output 2 The output 2 port is DC short to the other two ports and open to ground.Equivalent circuit for the Output 2

Mechanical Data

Outline Drawing

Download : Outline 2D Drawing Outline 3D Drawing Outline 3D STP

Outline Drawing

Evaluation Board

Evaluation Board - Outline Drawing

Outline Drawing

Revision History

Revision CodeRevision DateComment
-2020-06-01Initial Datasheet Release
A2021-01-01Specs table update
B2022-03-01Power Handling Specs Updated
C2025-12-17Power Handling Updated

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