Rectangular Waveguide Couplers

Overview

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

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

Frontgrade 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

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

Broadwall Directional Couplers

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

Coax Secondary Broadwall Directional Coupler

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

Coax Secondary Short-Length Couplers

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

Dual-Arm Broadwall Directional Couplers

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

Dual-Arm Coax Secondary Broadwall Directional Couplers

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

Short-Length Dual-Arm Broadwall Directional Couplers

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