Device Overview

General Description

The MQH-0516PSM is a reciprocal MMIC 5-16 GHz quadrature (90°) hybrid which exhibits excellent amplitude balance with broadband quadrature phasing between output ports. The MQH-0516PSM is a reciprocal device, allowing any port to be used as the input without performance degradation. Passive GaAs MMIC technology allows production of smaller constructions that replace larger form factor circuit board constructions. Applications include single sideband upconverters, image rejection downconverters, IQ modulators, balanced amplifiers, microwave correlators, and microwave Butler matrices.

Photo of MQH-0516PSM

Features

  • Fully reciprocal input ports
  • Excellent Amplitude and Phase Balance
  • High Isolation, 27dB Typical
  • Low Insertion Loss, 3.8dB Typical
  • On-Chip 50Ω Load Terminations

Applications

  • Single Sideband Upconverters
  • Image Rejection Downconverters
  • IQ Modulators
  • Balanced Amplifiers

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
MQH-0516PSMMMIC 5-16GHz 90° Hybrid CouplerPlastic QFN

RoHS

REACH

ReleasedEAR99
EVB-MQH-0516PEvaluation Board, 5 - 16 GHz MMIC 90° Hybrid CouplerEVB

RoHS

REACH

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2026-05-06Initial Release

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Port Configuration and Functions

Port Functions

Configuration A

PortFunctionDescriptionDC Equivalent
Circuit
Pin 18Input Pin 18 is DC short to pin 7 and open to ground. Equivalent circuit for the Input
Pin 290° Output Pin 2 is DC short to pin 23 and open to ground. Equivalent circuit for the 90° Output
Pin 23Isolated Pin 23 is DC short to pin 2 and open to ground. Equivalent circuit for the Isolated
Pin 70° Output Pin 7 is DC short to pin 18 and open to ground. Equivalent circuit for the 0° Output

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Configuration B

PortFunctionDescriptionDC Equivalent
Circuit
Pin 180° Output Pin 18 is DC short to pin 7 and open to ground. Equivalent circuit for the 0° Output
Pin 2Isolated Pin 2 is DC short to pin 23 and open to ground. Equivalent circuit for the Isolated
Pin 2390° Output Pin 23 is DC short to pin 2 and open to ground. Equivalent circuit for the 90° Output
Pin 7Input Pin 7 is DC short to pin 18 and open to ground. Equivalent circuit for the Input

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Configuration C

PortFunctionDescriptionDC Equivalent
Circuit
Pin 1890° Output Pin 18 is DC short to pin 7 and open to ground. Equivalent circuit for the 90° Output
Pin 2Input Pin 2 is DC short to pin 23 and open to ground. Equivalent circuit for the Input
Pin 230° Output Pin 23 is DC short to pin 2 and open to ground. Equivalent circuit for the 0° Output
Pin 7Isolated Pin 7 is DC short to pin 18 and open to ground. Equivalent circuit for the Isolated

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Configuration D

PortFunctionDescriptionDC Equivalent
Circuit
Pin 18Isolated Pin 18 is DC short to pin 7 and open to ground. Equivalent circuit for the Isolated
Pin 20° Output Pin 2 is DC short to pin 23 and open to ground. Equivalent circuit for the 0° Output
Pin 23Input Pin 23 is DC short to pin 2 and open to ground. Equivalent circuit for the Input
Pin 790° Output Pin 7 is DC short to pin 18 and open to ground. Equivalent circuit for the 90° Output

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
Maximum Operating Temperature 100°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Minimum Storage Temperature -65°C

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-5 x 5 mm
Moisture Sensitivity Level-MSL 1

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Electrical Specifications

ParameterPort ConfigurationTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Insertion Loss A-5 16-3.8-dB
Amplitude Balance A-5 16-0.3-dB
Coupling A-5 16-3-dB
Nominal Phase Shift A-5 16-90-°
Excess Insertion Loss 1A-5 16-0.8-dB
Isolation A-5 16-27-dB
Phase Balance A-5 16-3-°
Impedance -All Ports
5 16-50-Ω
Return Loss -All Ports
5 16-26-dB

[1] Excess Insertion Loss = Input to Output Insertion Loss - 3dB

Rev: - | Copyright © 2026 Marki Microwave LLC.

8

Typical performance plots shown for port configuration A. Performance may vary in alternate configurations.

Typical Performance Plots

Insertion Loss graph for MQH-0516PSM
Eval Insertion Loss graph for MQH-0516PSM
Amplitude Balance (dB) graph for MQH-0516PSM
Amplitude balance, 50 unit spread graph for MQH-0516PSM
Phase balance between output ports graph for MQH-0516PSM
Phase balance between output ports graph for MQH-0516PSM
Isolation graph for MQH-0516PSM
Return Loss graph for MQH-0516PSM

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Mechanical Data

Outline Drawing

Download : Outline 2D Drawing

Outline Drawing

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Evaluation Board - Outline Drawing

Outline Drawing

Rev: - | Copyright © 2026 Marki Microwave LLC.

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