Device Overview

General Description

The MPDW-0670CSP2 is a small footprint MMIC 6-70 GHz 2-Way power divider/power splitter featuring high 24 dB isolation and low 1 dB insertion loss in our compact CSP2 chip scale 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 MPDW-0670CSP2 features side port outputs. The 2.5 mm CSP2 package enables extreme miniaturization of SMT footprint making the MPDW-0670CSP2 ideal for applications prioritizing low SWaP.

Photo of MPDW-0670CSP2

Features

  • 2-way splitter or combiner in a compact 2.5mm package
  • Side ports
  • Low 1 dB insertion loss
  • High 24 dB isolation
  • Excellent 0.1 dB amplitude and 1° phase balance
  • This product embodies Marki Microwave's U.S. Pat. 11,869,858

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
MPDW-0670CSP26 - 70 GHz MMIC 2-Way Wilkinson Power Divider/Power Splitter, Side PortsCSP2

REACH

RoHS

ReleasedEAR99
EVB-MPDW-0670Evaluation Board, 6 - 70 GHz MMIC 2-Way Wilkinson Power Divider/Power Splitter, Side PortsEVB

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2024-02-14Datasheet Initial Release
A2025-04-28Updated Moisture Sensitivity from MSL3 to MSL1
B2025-12-17Power Handling Updated

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

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Port Configuration and Functions

Port Diagram

A top-down view of the MPDW-0670CSP2 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 MPDW-0670CSP2

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

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Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
PaddleGround Ground paddle should be connected to RF groundEquivalent circuit for the Ground
Pin 1Common Pin 1 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 2Input/Output 1 Pin 2 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 3Non-connect (NC) Pin 3 is not connected internally and should be tied to RF ground-
Pin 4Non-connect (NC) Pin 4 is not connected internally and should be tied to RF ground-
Pin 5Input/Output 2 Pin 5 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.

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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
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 Divider 10W

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-2.50 x 2.50 mm
Moisture Sensitivity Level-MSL 1

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

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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 -50 70-0.52dB
Amplitude Balance -6 50-0.10.8dB
Excess Insertion Loss 1-6 65-14dB
Excess Insertion Loss 2-65 70-38dB
Impedance -6 70-50-Ω
Isolation -10 501524-dB
Isolation -50 701020-dB
Nominal Phase Shift -6 70-0-°
Nominal Power Splitting -6 70-3-dB
Phase Balance -40 --28°
Phase Balance -6 40-15°
Return Loss -6 401017-dB
Return Loss -40 70414-dB

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

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

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Typical Performance Plots

Insertion Loss (dB) graph for MPDW-0670CSP2
Return Loss (dB) graph for MPDW-0670CSP2
Amplitude Balance (dB) graph for MPDW-0670CSP2
Phase Balance (°) graph for MPDW-0670CSP2
Isolation (dB) graph for MPDW-0670CSP2

Measured data is de-embedded from fixture using AFR.

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

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Mechanical Data

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

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

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Evaluation Board - Outline Drawing

Outline Drawing

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

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