Device Overview

General Description

The QH-0867 is a 8-67 GHz, multi-purpose broadband 3dB quadrature hybrid. The multisection tri-plate stripline design exhibits excellent amplitude balance with broadband quadrature phasing (90o) between the output ports. Applications include single sideband upconverters, image rejection downconverters, IQ modulators, balanced amplifiers, microwave correlators and microwave Butler matrices. Custom designs are also available; contact the factory for details.

Photo of QH-0867

Features

  • Broadband performance
  • Excellent amplitude and phase balance
  • High isolation
  • Low VSWR

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
QH-08673 dB Quadrature HybridStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

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Port Configuration and Functions

Port Diagram

Diagram of the port configuration for QH-0867

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Port 10° Output 1.85FPort 1 is DC short to port 3 and open to ground.Equivalent circuit for the 0° Output
Port 290° Output 1.85FPort 2 is DC short to port 4 and open to groundEquivalent circuit for the 90° Output
Port 3Isolated 1.85FPort 3 is DC short to port 1 and open to ground.Equivalent circuit for the Isolated
Port 4Input 1.85FPort 4 is DC short to port 2 and open to groundEquivalent circuit for the Input

Rev: - | Copyright © 2022 - 2026 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-36g
Dimensions-38.81 x 23.37 mm

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Electrical Specifications

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Amplitude Balance 1-8 67-0.61.2dB
Excess Insertion Loss 2-8 67-1.2-dB
Isolation -50 67913-dB
Isolation -8 501318-dB
Mean Coupling -8 67-3-dB
Nominal Phase Shift -8 67-90-°
Phase Balance -8 67-618°
VSWR -8 40-1.31.65
VSWR -40 67-1.6-

[1] Maximum amplitude differential is twice the magnitude of the amplitude balance

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

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Typical Performance

Through and coupled line insertion loss graph for QH-0867
Typical port return loss and isolation graph for QH-0867
Amplitude difference between the 0o and 90o output ports graph for QH-0867
Phase difference between the 0o and 90o output ports graph for QH-0867

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Mechanical Data

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