Device Overview

General Description

The QH-0226 is a 2 to 26 GHz, multi-purpose broadband 3 dB quadrature hybrid. The multisection tri-plate stripline design exhibits excellent amplitude balance with broadband quadrature phasing (90°) between the output ports. Custom designs are also available; contact the factory for details.

Photo of QH-0226

Features

  • Broadband Performance
  • Excellent amplitude and phase balance
  • Excellent isolation
  • Low VSWR

Applications

  • Single Sideband Upconverters
  • Image Rejection Downconverters
  • IQ Modulators
  • Balanced Amplifiers
  • Microwave Correlators
  • Microwave Butler Matrices

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
QH-02263 dB Quadrature HybridStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2020-01-06Datasheet Initial Release

Rev: - | Copyright © 2020 Marki Microwave LLC.

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Port Configuration and Functions

Port Diagram

Diagram of the port configuration for QH-0226

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Port 10° Output SMAFPort 1 is DC short to port 3 and open to ground.Equivalent circuit for the 0° Output
Port 290° Output SMAFPort 2 is DC short to port 4 and open to the ground.Equivalent circuit for the 90° Output
Port 3Isolated SMAFPort 3 is DC short to port 1 and open to ground.Equivalent circuit for the Isolated
Port 4Input SMAFPort 4 is DC short to port 2 and open to ground.Equivalent circuit for the Input

Rev: - | Copyright © 2020 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
RF Power Handling 140W

[1] RF Power Handling is measured at 18GHz CW

Package Information

ParameterDetailsRating
Weight-100g
Dimensions-68.58x33.02mm

Rev: - | Copyright © 2020 Marki Microwave LLC.

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Electrical Specifications

Specifications guaranteed when operated in a 50Ω system.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Amplitude Balance 1-2 26-0.251dB
Excess Insertion Loss 2-2 26--3dB
Isolation -20 261318-dB
Mean Coupling -2 26--3dB
Nominal Phase Shift -2 26-90-°
Phase Balance -2 26-210°
VSWR -20 26--1.65

[1] Maximum amplitude differential is twice the magnitude of the amplitude balance (see Fig. 3).

[2] Excess Insertion Loss = (Input to Output Insertion Loss) – 3 dB

Rev: - | Copyright © 2020 Marki Microwave LLC.

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Typical Performance Plots

Through and coupled line insertion loss graph for QH-0226
Typical port return loss and isolation graph for QH-0226
Amplitude difference between the 0° and 90° output ports graph for QH-0226
Phase difference between the 0° and 90° output ports graph for QH-0226

Rev: - | Copyright © 2020 Marki Microwave LLC.

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Mechanical Data

Rev: - | Copyright © 2020 Marki Microwave LLC.

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