Device Overview

General Description

The MDPX-0407 is a broadband passive MMIC diplexer, a combination high pass and loss pass filter, capable of multiplexing low frequency DC to 4 GHz and high frequency 7 to 26.5 GHz signals. It can also be used as a reflectionless high pass or low pass filter when terminated with an internal/external 50 Ohm load. Passive GaAs MMIC technology allows production of smaller filter constructions that replace larger form factor circuit board constructions. Tight fabrication tolerances allow for less unit-to-unit variation than traditional filter technologies. The MDPX-0407 is available as a connectorized module and as wire bondable die. Low unit to unit variation allows for accurate simulations using the provided S3P file taken from measured production units.

Photo of MDPX-0407

Features

  • 5 GHz Crossover Point
  • Low <1dB typical Insertion Loss in Pass band
  • High Stop Band Suppression
  • Reflectionless Filter
  • RoHS Compliant

Applications

  • Reflectionless Filter Applications
  • RF Transceivers

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageConnectorsGreen StatusProduct LifecycleExport Classification
MDPX-0407Passive MMIC DC-4 GHz Diplexer/Reflectionless FilterUBStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2021-05-01Datasheet initial Release
A2022-03-01CH Wire Bondable Die Added

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

2

Port Configuration and Functions

Port Diagram

Diagram of the port configuration for MDPX-0407

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
GNDGround -Package ground provided through metal housing and outer coax conductor.Equivalent circuit for the Ground
Port 1Input/common SMAFPort 1 is DC short to Port 4 and open to the other two ports and ground.Equivalent circuit for the Input/common
Port 2RF High Band SMAFPort 2 is DC short to ground and open to all other ports.Equivalent circuit for the RF High Band
Port 3RF Low Band SMAFPort 4 is DC short to Port 1 and open to the other two ports and ground.Equivalent circuit for the RF Low Band

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

3

Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
Maximum Storage Temperature 100°C
Maximum Survivable Operating Temperature 100°C
Minimum Storage Temperature -65°C
Minimum Survivable Operating Temperature -65°C
RF Power Handling 30dBm
Spec Guaranteed Operating Temperature 25°C

Package Information

ParameterDetailsRating
Dimensions-16.26x9.53 mm

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

4

Electrical Specifications

Specifications guaranteed +25°C for UB package, measured in a 50Ω system.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
1 dBc High Passband -- -7-26.5GHz
1 dBc Low Passband -- -0-4GHz
30 dBc Low Pass Rejection Point DC to 3 GHz
0 32553-dB
Common Port Return Loss 7 to 26.5 GHz
7 26.5718-dB
Common Port Return Loss DC to 4 GHz
0 41822-dB
High Pass Filter, Pass Band Insertion Loss 7 to 26.5 GHz
7 26.5-0.9-dB
High Pass Filter, Pass Band Return Loss 7 to 26.5 GHz
7 26.5718-dB
Impedance -- --50-Ω
Isolation 3 to 4 GHz
3 4-20-dB
Isolation 7 to 26.5 GHz
7 26.52538-dB
Isolation DC to 3 GHz
0 32538-dB
Low Pass Filter, Pass Band Insertion Loss DC to 4 GHz
0 4-0.9-dB
Low Pass Filter, Pass Band Return Loss DC to 4 GHz
0 41822-dB
Low Pass Filter, Stop Band Rejection 7 to 26.5 GHz
7 26.52542-dB

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

5

Typical Performance Plots

Insertion Loss (dB) graph for MDPX-0407
Adjacent Isolation (dB) graph for MDPX-0407
Insertion Loss (dB) graph for MDPX-0407
Insertion Loss (dB) graph for MDPX-0407
Return Loss (dB) graph for MDPX-0407
Return Loss (dB) graph for MDPX-0407
Band 1 Group Delay (ps) graph for MDPX-0407
Band 1 Group Delay (ps) graph for MDPX-0407

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

6

Typical Performance Plots over temperature

Band 2 Insertion Loss (dB) graph for MDPX-0407
Band 2 Insertion Loss (dB) graph for MDPX-0407
Band 1 Insertion Loss (dB) graph for MDPX-0407
Band 1 Insertion Loss (dB) graph for MDPX-0407
High Pass - Low Pass Isolation (dB) graph for MDPX-0407
Common Return Loss (dB) graph for MDPX-0407
Low Pass Return Loss (dB) graph for MDPX-0407
High Pass Return Loss (dB) graph for MDPX-0407

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

7

Mechanical Data

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

8