REV 1.0 Page 1 of 4

Copyright © 2017

The FMWCT1069 is a 30 dB WR-90 four port crossguide coupler with one

coupled port terminated (making it a three port coupler) and a coax adapter

on the opposite coupled port. This coupler can be mounted directly into

the waveguide signal path, connected via coax to allow signal sampling /

monitoring. The coupler has a typical VSWR of 1.05:1 and are made of bronze

with brass UG-39/U Square Cover flanges. The FMWCT1069 is part of a family

of cross guide couplers offered by Fairview with coupling values ranging from

20 to 50 dB. There is also a full family of top wall (broad wall) couplers.

For the three port version of this coupler (terminated but no coax adapter) please

see the FMWCT1021. For the four port version of this coupler (no termination, no

coax adapter) please see the FMWCP1056.

Electrical Specifications

Description

Min

Typ

Max

Units

Frequency Range

8.2

12.4

GHz

Impedance

50

Ohms

Coupler

Nominal Coupling Level

30

dB

Directivity

20

dB

Insertion Loss

0.1

dB

Main Line VSWR

1.05:1

Termination

Input Power (CW)

4

Watts

Waveguide to Coax Adapters

VSWR

1.25:1

Mechanical Specifications

.

Interface

Waveguide Size

WR-90

Flange Type

Square Cover

Flange Designation

UG-39/U

Flange Material and Plating

Brass

RF Connector Type

SMA Female

.

Coupler Body Material and Plating

Bronze

Termination Body Material and Plating

Bronze

Environmental Specifications

.

Compliance Certifications (see product page for current document)

Plotted and Other Data

Notes:

FMWCT1069

DATA SHEET

30 dB WR-90 Waveguide Crossguide Coupler with

UG-39/U Square Cover Flange and SMA Female Cou-

pled Port from 8.2 GHz to 12.4 GHz in Bronze

Fairview Microwave

1130 Junction Dr. #100

Allen, TX 75013

Tel: 1-800-715-4396 / (972) 649-6678

Fax: (972) 649-6689

www.fairviewmicrowave.com

sales@fairviewmicrowave.com

Features:

• Three Port

• Crossguide Waveguide Coupler

• Terminated

• 30 dB Nominal Coupling Level

• SMA Female Coax Adapter

• 8.2 GHz to 12.4 GHz

Frequency Range

• Waveguide Body made of

Bronze with Brass Flanges

• Low VSWR

Applications:

• Test Benches

• Radar

• Satellite

• Microwave Radio

• Attenuation Measurements

• Power Measurements

• Source Leveling