Device Overview

General Description

The MPD2-00001PSM is a small footprint MMIC 0.4-4 GHz 2-Way Wilkinson power divider/power splitter featuring high 16 dB isolation and low 0.9 dB insertion loss in our compact DFN package. It is much smaller than a printed PCB Wilkinson Power Divider/Combiner. It can be used as an equal amplitude/phase power splitter or a power combiner with excellent isolation. 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. The 1.3 x 2mm DFN package enables extreme miniaturization of SMT footprint making the MPD2-00001PSM ideal for applications prioritizing low SWaP.

Photo of MPD2-00001PSM

Features

  • 2-way splitter or combiner in a compact 2.5mm package
  • Low 0.9 dB insertion loss
  • High 16 dB isolation
  • Excellent equal 0.02 dB amplitude and 0.8° phase balance
  • RoHS compliant
  • Miniature 1.3 x 2mm DFN package

Applications

  • Test Equipment
  • Electronic Warfare
  • Radar and satellite communications
  • High Channel Count Systems

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
MPD2-00001PSM0.4 - 4 GHz MMIC 2-Way Wilkinson Power Divider/Power SplitterDFN

REACH

RoHS

ReleasedEAR99
EVB-MPD2-00001PEvaluation Board, 0.4 - 4 GHz MMIC 2-Way Wilkinson Power Divider/Power SplitterEVB

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2024-06-10Datasheet Initial Release
A2024-12-16Power Handling Added
B2025-12-17Power Handling Updated

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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Port Configuration and Functions

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

3

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
Ground PaddleGnd Ground paddle should be connected to RF groundEquivalent circuit for the Gnd
Pin 1Non-connect (NC) Pin 1 is not connected internally and should be tied to RF ground.Equivalent circuit for the Non-connect (NC)
Pin 2Common Pin 2 is the common input/output port. It is DC short to the other two ports and open to ground.Equivalent circuit for the Common
Pin 3Non-connect (NC) Pin 3 is not connected internally and should be tied to RF ground.Equivalent circuit for the Non-connect (NC)
Pin 4Input/Output 1 Pin 4 is an input/output port. It is DC short to the other two ports and open to ground.Equivalent circuit for the Input/Output 1
Pin 5Non-connect (NC) Pin 5 is not connected internally and should be tied to RF ground.Equivalent circuit for the Non-connect (NC)
Pin 6Input/Output 2 Pin 6 is an input/output port. It is DC short to the other two ports and open to ground.Equivalent circuit for the Input/Output 2

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

4

Specifications

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 40mA
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 1.5W
RF Power Handling as a Power Divider 20W

Power handling as a combiner was tested under incoherent signal condition. Under coherent signal condition, power handling at each input can be up to 10W.

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-2.0 x 1.3 mm
Moisture Sensitivity Level-MSL 1

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

5

Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Amplitude Balance -0 4-0.02-dB
Common Port Return Loss -0 4-21-dB
Excess Insertion Loss 1-0 4-0.9-dB
Impedance -0 4-50-Ω
Isolation -0.4 4-16-dB
Nominal Phase Shift -0 4-0-°
Nominal Power Splitting -0 4-3-dB
Output Return Loss -0 4-18-dB
Phase Balance -0 4-0.8-°

[1] Excess Insertion Loss is loss in addition to power splitting loss, calculated as (Common Port to Output Port Insertion Loss) – (Power splitting loss of 3 dB)

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

6

Typical Performance Plots

Insertion Loss (dB) graph for MPD2-00001PSM
Return Loss (dB) graph for MPD2-00001PSM
Amplitude Balance (dB) graph for MPD2-00001PSM
Phase Balance (°) graph for MPD2-00001PSM
Isolation (dB) graph for MPD2-00001PSM

Measured data is de-embedded from fixture using AFR.

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

7

Mechanical Data

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

8

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

9

Evaluation Board - Outline Drawing

Outline Drawing

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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