Overview

Looking for a rectangular waveguide coupler? You’ve reached the right place. No matter what your design need, CAES has a solution to meet all of your design needs.

Designed with decades of waveguide expertise, CAES Rectangular Waveguide Couplers provide field proven performance and reliability. 

CAES provides an extensive portfolio of rectangular waveguide couplers. Our portfolio includes a full range of cross guide directional, broadwall and dual-arm broadwall directional couplers.

Cross Guide

Cross Guide Directional Waveguide Couplers

CAES Crossguide Directional Couplers utilize an ultra-flat coupling technique that exhibits high power handling characteristics, while maintaining optimum electrical performance parameters over the full waveguide bandwidth. Included in the design characteristics are rugged brazed construction, minimum directivity of 20 dB, maximum VSWR of 1.10, and coupling levels available ranging from 20 to 60 dB with a mean variation less than 1.0 dB. Additional sizes and configurations are available on request.

Part Number Frequency Range Waveguide Size
RCC22 33.00 - 50.00 WR - 22
RCC28 26.50 - 40.00 WR - 28
RCC34 22.00 - 33.00 WR - 34
RCC42 18.00 - 26.50 WR - 42
RCC51 15.00 - 22.00 WR - 51
RCC62 12.40 - 18.00 WR - 62
RCC75 10.00 - 15.00 WR - 75
RCC90 8.20 - 12.40 WR - 90
RCC102 7.00 - 11.00 WR-102
RCC112 7.05 - 10.00 WR-112
RCC137 5.85 - 8.20 WR-137
RCC159 4.90 - 7.05 WR-159
RCC187 3.95 - 5.85 WR-187
RCC229 3.30 - 4.90 WR-229
RCC284 2.60 - 3.95 WR-284
RCC340 2.20 - 3.30 WR-340
RCC430 1.70 - 2.60 WR-430
Broadwall

Broadwall Directional Couplers

CAES Broadwall Directional Couplers are multi-hole and cover waveguide sizes WR-22 through WR-430. The optimum electrical characteristics of high directivity and coupling flatness are achieved utilizing a precision machined Tchebyscheff coupling hole distribution and a precision ground tapered load element in the secondary arm. Additional sizes, special configurations, and alternate finishes are available on request.

Part Number Frequency Range Waveguide Size
RDBC22 33.00 - 50.00 WR - 22
RDBC28 26.50 - 40.00 WR - 28
RDBC34 22.00 - 33.00 WR - 34
RDBC42 18.00 - 26.50 WR - 42
RDBC51 15.00 - 22.00 WR - 51
RDBC62 12.40 - 18.00 WR - 62
RDBC75 10.00 - 15.00 WR - 75
RDBC90 8.20 - 12.40 WR - 90
RDBC102 7.00 - 11.00 WR - 102
RDBC112 7.05 - 10.00 WR - 112
RDBC137 5.85 - 8.20 WR - 137
RDBC159 4.90 - 7.05 WR - 159
RDBC187 3.95 - 5.85 WR - 187

Coax Secondary Broadwall Directional Coupler

CAES Coax Secondary Broadwall Directional Couplers support waveguide sizes WR-22 through WR-430. The optimum electrical characteristics of high directivity and coupling flatness are achieved utilizing a precision machined Tchebyscheff coupling hole distribution and a precision ground tapered load element in the secondary arm. Additional sizes, special configurations, and alternate finishes are available on request.

Part Number Frequency Range Waveguide Size
RBCC22 33.00 - 50.00 WR - 22
RBCC28 26.50 - 40.00 WR - 28
RBCC34 22.00 - 33.00 WR - 34
RBCC42 18.00 - 26.50 WR - 42
RBCC51 15.00 - 22.00 WR - 51
RBCC62 12.40 - 18.00 WR - 62
RBCC75 10.00 - 15.00 WR - 75
RBCC90 8.20 - 12.40 WR - 90
RBCC102 7.00 - 11.00 WR - 102
RBCC112 7.05 - 10.00 WR - 112
RBCC137 5.85 - 8.20 WR - 137
RBCC159 4.90 - 7.05 WR - 159
RBCC187 3.95 - 5.85 WR - 187
RBCC229 3.30 - 4.90 WR - 229
RBCC284 2.60 - 3.95 WR - 284
RBCC340 2.20 - 3.30 WR - 340

Coax Secondary Short-Length Couplers

CAES Coax Secondary Short-Length Couplers cover sizes WR-28 through WR-430. The optimum electrical characteristics of high directivity and coupling flatness are achieved utilizing a precision machined Tchebyscheff coupling hole distribution and a precision ground tapered load element in the secondary arm. Additional sizes, special configurations, and alternate finishes are available on request.

Part Number Frequency Range Waveguide Size
RBCCSL28 26.50 - 40.00 WR - 28
RBCCSL34 22.00 - 33.00 WR - 34
RBCCSL42 18.00 - 26.50 WR - 42
RBCCSL51 15.00 - 22.00 WR - 51
RBCCSL62 12.40 - 18.00 WR - 62
RBCCSL75 10.00 - 15.00 WR - 75
RBCCSL90 8.20 - 12.40 WR - 90
RBCCSL102 7.00 - 11.00 WR - 102
RBCCSL112 7.05 - 10.00 WR - 112
RBCCSL137 5.85 - 8.20 WR - 137
RBCCSL159 4.90 - 7.05 WR - 159
RBCCSL187 3.95 - 5.85 WR - 187
RBCCSL229 3.30 - 4.90 WR - 229
RBCCSL284 2.60 - 3.95 WR - 284
RBCCSL340 2.20 - 3.30 WR - 340
RBCCSL430 1.70 - 2.60 WR - 430
Dual-Arm

Dual-Arm Broadwall Directional Couplers

CAES Dual-Arm Broadwall Directional Couplers are multihole and cover waveguide sizes WR-22 through WR-187. Additional sizes, special configurations, and alternate finishes are available on request.

Part Number Frequency Range Waveguide Size
RDBC22 33.00 - 50.00 WR - 22
RDBC28 26.50 - 40.00 WR - 28
RDBC34 22.00 - 33.00 WR - 34
RDBC42 18.00 - 26.50 WR - 42
RDBC51 15.00 - 22.00 WR - 51
RDBC62 12.40 - 18.00 WR - 62
RDBC75 10.00 - 15.00 WR - 75
RDBC90 8.20 - 12.40 WR - 90
RDBC102 7.00 - 11.00 WR - 102
RDBC112 7.05 - 10.00 WR - 112
RDBC137 5.85 - 8.20 WR - 137
RDBC159 4.90 - 7.05 WR - 159
RDBC187 3.95 - 5.85 WR - 187

Dual-Arm Coax Secondary Broadwall Directional Couplers

CAES Dual-Arm Coax Secondary Broadwall Directional Couplers cover rectangular waveguide sizes WR-22 through WR-430 and configured similar to our single arm models. Additional sizes, special configurations, and alternate finishes are available on request.

Part Number Frequency Range Waveguide Size
RDBCC22 33.00 - 50.00 WR - 22
RDBCC28 26.50 - 40.00 WR - 28
RDBCC34 22.00 - 33.00 WR - 34
RDBCC42 18.00 - 26.50 WR - 42
RDBCC51 15.00 - 22.00 WR - 51
RDBCC62 12.40 - 18.00 WR - 62
RDBCC75 10.00 - 15.00 WR - 75
RDBCC90 8.20 - 12.40 WR - 90
RDBCC102 7.00 - 11.00 WR - 102
RDBCC112 7.05 - 10.00 WR - 112
RDBCC137 5.85 - 8.20 WR - 137
RDBCC159 4.90 - 7.05 WR - 159
RDBCC187 3.95 - 5.85 WR - 187
RDBCC229 3.30 - 4.90 WR - 229
RDBCC284 2.60 - 3.95 WR - 284
RDBCC340 2.20 - 3.30 WR - 340
RDBCC430 1.70 - 2.60 WR - 430

Short-Length Dual-Arm Broadwall Directional Couplers

CAES Short Length Dual-Arm Broadwall Directional Couplers cover rectangular waveguide sizes WR-28 through WR-187. Additional sizes, special configurations, and alternate finishes are available on request.

Part Number Frequency Range Waveguide Size
RDBCCSL28 26.50 - 40.00 WR - 28
RDBCCSL34 22.00 - 33.00 WR - 34
RDBCCSL42 18.00 - 26.50 WR - 42
RDBCCSL51 15.00 - 22.00 WR - 51
RDBCCSL62 12.40 - 18.00 WR - 62
RDBCCSL75 10.00 - 15.00 WR - 75
RDBCCSL90 8.20 - 12.40 WR - 90
RDBCCSL102 7.00 - 11.00 WR - 102
RDBCCSL112 7.05 - 10.00 WR - 112
RDBCCSL137 5.85 - 8.20 WR - 137
RDBCCSL159 4.90 - 7.05 WR - 159
RDBCCSL187 3.95 - 5.85 WR - 187
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