Device Overview

General Description

The C10-0450 is a broadband 4-50 GHz, 10 dB directional coupler. The multisection tri-plate stripline design exhibits excellent coupling flatness and VSWR to 50 GHz. Custom designs are also available, contact the factory for details.

Photo of C10-0450

Features

  • Broadband Performance
  • Excellent Coupling Flatness
  • High Directivity
  • Low VSWR

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
C10-0450DIRECTIONAL COUPLERStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
H2020-04-01Updated Direct Line IL specs
I2025-08-26Updated Connector Type

Rev: I | Copyright © 2020, 2025 Marki Microwave LLC.

2

Port Configuration and Functions

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
-10dB-10dB Coupled Output 2.4F-10dB coupled output port.-
INRF Input 2.4FRF input port.-
ISOLIsolated 2.4FIsolated port.-
OUTRF Output 2.4FRF output port.-

Rev: I | Copyright © 2020, 2025 Marki Microwave LLC.

3

Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
RF Power Handling 15W
Minimum Operating Temperature -55°C
Maximum Storage Temperature 125°C
Maximum Operating Temperature 100°C
Minimum Storage Temperature -65°C

Package Information

ParameterDetailsRating
Weight-35g
Dimensions-40.6x13.97 mm

Rev: I | Copyright © 2020, 2025 Marki Microwave LLC.

4

Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Amplitude Flatness 1-4 50-0.51.5dB
Directivity -4 50915-dB
Direct Line Insertion Loss DC-50
- ---2.5dB
Mean Coupling -4 50-10-dB
VSWR -4 40-1.351.55
VSWR -40 50-1.55-

[1] Deviation from average coupling.

Rev: I | Copyright © 2020, 2025 Marki Microwave LLC.

5

Typical Performance Plots

Direct line insertion loss graph for C10-0450
Typical port return loss graph for C10-0450
Coupled port power graph for C10-0450
Typical directivity graph for C10-0450

Rev: I | Copyright © 2020, 2025 Marki Microwave LLC.

6

Mechanical Data

Rev: I | Copyright © 2020, 2025 Marki Microwave LLC.

7