Device Overview

General Description

The C17-0R518 is a high power, broadband bidirectional coupler capable of operation to 18 GHz. The multisection stripline design exhibits excellent coupling flatness and VSWR at all ports. This coupler is available with SMA and APC-7 connector option.

Photo of C17-0R518

Features

  • Low Insertion Loss
  • High Power Handling
  • Broadband Performance
  • High Directivity
  • Low VSWR

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
C17-0R518DIRECTIONAL COUPLERStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
A2021-02-01Specs table update

Rev: A | Copyright © 2021 Marki Microwave LLC.

2

Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
RF Power Handling 60W
Minimum Storage Temperature -65°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Maximum Operating Temperature 100°C

Package Information

ParameterDetailsRating
Weight-600g
Dimensions-182.73 x 46.91mm

Rev: A | Copyright © 2021 Marki Microwave LLC.

3

Electrical Specifications

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

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Weight 1-- --600-g
Amplitude Flatness 2-0.5 18-0.61.2dB
Directivity -15 189--dB
Directivity -15 181014-dB
Directivity -0.5 151318-dB
Directivity -0.5 1510--dB
Direct Line Insertion Loss -0.5 18--1.7dB
Direct Line Insertion Loss 3-0.5 18--1.8dB
Direct Line Insertion Loss -0.5 0.5-0.17-dB
Direct Line Insertion Loss -12 12-0.64-dB
Direct Line Insertion Loss -18 18-1-dB
Mean Coupling -0.5 18-17-dB
VSWR -15 18-1.45-
VSWR -0.5 15-1.351.58
VSWR -0.5 15--2

[1] Weight listed is for SMA connectorized package. Each APC-7 connector is an additional 50 grams.

[2] Deviation from average coupling.

[3] Max and min values given for SMA (APC-7) connectors.

Rev: A | Copyright © 2021 Marki Microwave LLC.

4

Typical Performance Plots

Direct line insertion loss graph for C17-0R518
Typical port return loss graph for C17-0R518
Coupled port power graph for C17-0R518
Typical directivity graph for C17-0R518
Low frequency coupled port power graph for C17-0R518

Rev: A | Copyright © 2021 Marki Microwave LLC.

5

Mechanical Data

Rev: A | Copyright © 2021 Marki Microwave LLC.

6