Waveguide Components
Waveguide carries RF signals through a hollow metal structure with lower insertion loss and higher power handling than coaxial at frequencies where conductor loss in coaxial becomes limiting. It is the standard transmission medium in high power radar, satellite uplink, and millimeter wave systems. MCLI’s waveguide component line covers 0.75 to 60 GHz across four product types: waveguide isolators (ISW series), waveguide circulators (CSW series), coaxial-to-waveguide adapters, and waveguide terminations.
All components are built to full waveguide band specifications with VSWR as low as 1.15:1, pressure sealing available to 30 PSI, and flange options covering standard and MIL-spec configurations. Custom frequency bands, body materials, and mechanical packages are available on request.
Full Waveguide Frequency Range
High Power and High Reliability Solutions
Low VSWR and Pressurized to 30 PSI
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Showing 1–100 of 166 results
| Part # | Type | Frequency Range (GHz) | EIA Design | VSWR Max. | Power Avg. (W) | Lead Time | Notes | Action | |
|---|---|---|---|---|---|---|---|---|---|
| Min | Max | ||||||||
| WC-975N-A-1 | WC-N Series | 0.75 | 1.12 | WR975 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-975NH-A-1 | WC-NH Series | 0.75 | 1.12 | WR975 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-650S-A-6 | WC-S Series | 1.12 | 1.7 | WR650 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-650N-A-1 | WC-N Series | 1.12 | 1.7 | WR650 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-650NH-A-1 | WC-NH Series | 1.12 | 1.7 | WR650 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-650T-A-6 | WC-T Series | 1.12 | 1.7 | WR650 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-650C-A-1 | WC-C Series | 1.12 | 1.7 | WR650 | 1.25:1 | 1600 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-650D-A-1 | WC-D Series | 1.12 | 1.7 | WR650 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-1 | Low Power | 1.12 | 1.71 | WR650 | 1.05:1 | 25 | 12-13 Weeks | N/A | Request Quote |
| WTM-1-A-2 | Medium Power | 1.12 | 1.17 | WR650 | 1.15:1 | 1500 | 12-13 Weeks | N/A | Request Quote |
| WM-1-2 | High Power | 1.12 | 1.7 | WR650 | 1.15:1 | 2500 | 12-13 Weeks | N/A | Request Quote |
| WL-1-F | Very High Power | 1.12 | 1.7 | WR650 | 1.15:1 | 8000 | 12-13 Weeks | N/A | Request Quote |
| WC-430S-A-6 | WC-S Series | 1.7 | 2.6 | WR430 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-430N-A-1 | WC-N Series | 1.7 | 2.6 | WR430 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-430NH-A-1 | WC-NH Series | 1.7 | 2.6 | WR430 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-430T-A-6 | WC-T Series | 1.7 | 2.6 | WR430 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-430C-A-1 | WC-C Series | 1.7 | 2.6 | WR430 | 1.25:1 | 1300 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-430D-A-1 | WC-D Series | 1.7 | 2.6 | WR430 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-2 | Low Power | 1.7 | 2.6 | WR430 | 1.05:1 | 15 | 12-13 Weeks | N/A | Request Quote |
| WTM-2-A-2 | Medium Power | 1.7 | 2.6 | WR430 | 1.15:1 | 1200 | 12-13 Weeks | N/A | Request Quote |
| WM-2-2 | High Power | 1.7 | 2.6 | WR430 | 1.15:1 | 2500 | 12-13 Weeks | N/A | Request Quote |
| WL-2-F | Very High Power | 1.7 | 2.6 | WR430 | 1.15:1 | 6500 | 12-13 Weeks | N/A | Request Quote |
| WC-340S-A-6 | WC-S Series | 2.2 | 3.3 | WR340 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-340N-A-1 | WC-N Series | 2.2 | 3.3 | WR340 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-340NH-A-1 | WC-NH Series | 2.2 | 3.3 | WR340 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-340T-A-6 | WC-T Series | 2.2 | 3.3 | WR340 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-340C-A-1 | WC-C Series | 2.2 | 3.3 | WR340 | 1.25:1 | 1100 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-340D-A-1 | WC-D Series | 2.2 | 3.3 | WR340 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-3 | Low Power | 2.2 | 3.3 | WR340 | 1.05:1 | 12 | 12-13 Weeks | N/A | Request Quote |
| WTM-3-A-2 | Medium Power | 2.2 | 3.3 | WR340 | 1.15:1 | 1200 | 12-13 Weeks | N/A | Request Quote |
| WM-3-2 | High Power | 2.2 | 3.3 | WR340 | 1.15:1 | 2500 | 12-13 Weeks | N/A | Request Quote |
| WL-3-F | Very High Power | 2.2 | 3.3 | WR340 | 1.15:1 | 5500 | 12-13 Weeks | N/A | Request Quote |
| WC-284S-A-6 | WC-S Series | 2.6 | 3.95 | WR284 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-284N-A-1 | WC-N Series | 2.6 | 3.95 | WR284 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-284NH-A-1 | WC-NH Series | 2.6 | 3.95 | WR284 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-284NU-6 | WC-NU Series | 2.6 | 3.95 | WR284 | 1.25:1 | 2000 | 12-13 Weeks | Peak Power: 6kW | Request Quote |
| WC-284T-A-6 | WC-T Series | 2.6 | 3.95 | WR284 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-284C-A-1 | WC-C Series | 2.6 | 3.95 | WR284 | 1.25:1 | 975 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-284D-A-1 | WC-D Series | 2.6 | 3.95 | WR284 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-4 | Low Power | 2.6 | 3.95 | WR284 | 1.05:1 | 10 | 12-13 Weeks | N/A | Request Quote |
| WTM-4-A-6 | Medium Power | 2.6 | 3.95 | WR284 | 1.10:1 | 1200 | 12-13 Weeks | N/A | Request Quote |
| WM-4-6 | High Power | 2.6 | 3.95 | WR284 | 1.10:1 | 2400 | 12-13 Weeks | N/A | Request Quote |
| WL-4-F | Very High Power | 2.6 | 3.95 | WR284 | 1.15:1 | 5000 | 12-13 Weeks | N/A | Request Quote |
| WC-229S-A-6 | WC-S Series | 3.3 | 4.9 | WR229 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-229N-A-1 | WC-N Series | 3.3 | 4.9 | WR229 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-229NH-A-1 | WC-NH Series | 3.3 | 4.9 | WR229 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-229NU-2 | WC-NU Series | 3.3 | 4.9 | WR229 | 1.25:1 | 1800 | 12-13 Weeks | Peak Power: 6kW | Request Quote |
| WC-229T-A-6 | WC-T Series | 3.3 | 4.9 | WR229 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-229C-A-1 | WC-C Series | 3.3 | 4.9 | WR229 | 1.25:1 | 850 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-229D-A-1 | WC-D Series | 3.3 | 4.9 | WR229 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-5 | Low Power | 3.3 | 4.9 | WR229 | 1.05:1 | 10 | 12-13 Weeks | N/A | Request Quote |
| WTM-5-B-2 | Medium Power | 3.3 | 4.9 | WR229 | 1.10:1 | 1000 | 12-13 Weeks | N/A | Request Quote |
| WM-5-2 | High Power | 3.3 | 4.9 | WR229 | 1.10:1 | 2000 | 12-13 Weeks | N/A | Request Quote |
| WL-5-F | Very High Power | 3.3 | 4.9 | WR229 | 1.15:1 | 4000 | 12-13 Weeks | N/A | Request Quote |
| WC-187S-A-6 | WC-S Series | 3.95 | 5.85 | WR187 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-187N-A-1 | WC-N Series | 3.95 | 5.85 | WR187 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-187NH-A-1 | WC-NH Series | 3.95 | 5.85 | WR187 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-187NU-6 | WC-NU Series | 3.95 | 5.85 | WR187 | 1.25:1 | 1500 | 12-13 Weeks | Peak Power: 6kW | Request Quote |
| WC-187T-A-6 | WC-T Series | 3.95 | 5.85 | WR187 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-187C-A-1 | WC-C Series | 3.95 | 5.85 | WR187 | 1.25:1 | 780 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-187D-A-1 | WC-D Series | 3.95 | 5.85 | WR187 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-6 | Low Power | 3.95 | 5.85 | WR187 | 1.05:1 | 8 | 12-13 Weeks | N/A | Request Quote |
| WTM-6-A-6 | Medium Power | 3.95 | 5.85 | WR187 | 1.10:1 | 750 | 12-13 Weeks | N/A | Request Quote |
| WM-6-6 | High Power | 3.95 | 5.85 | WR187 | 1.10:1 | 1500 | 12-13 Weeks | N/A | Request Quote |
| WL-6-F | Very High Power | 3.95 | 5.85 | WR187 | 1.15:1 | 3000 | 12-13 Weeks | N/A | Request Quote |
| WL-6-3/3000 | Very High Power | 3.95 | 5.85 | WR187 | 1.15:1 | 3000 | 12-13 Weeks | N/A | Request Quote |
| WC-159S-A-6 | WC-S Series | 4.9 | 7.05 | WR159 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-159N-A-1 | WC-N Series | 4.9 | 7.05 | WR159 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-159NH-A-1 | WC-NH Series | 4.9 | 7.05 | WR159 | 1.25:1 | 500 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-159NU-2 | WC-NU Series | 4.9 | 7.05 | WR159 | 1.25:1 | 1500 | 12-13 Weeks | Peak Power: 6kW | Request Quote |
| WC-159T-A-6 | WC-T Series | 4.9 | 7.05 | WR159 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-159C-A-1 | WC-C Series | 4.9 | 7.05 | WR159 | 1.25:1 | 700 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-159D-A-1 | WC-D Series | 4.9 | 7.05 | WR159 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-7 | Low Power | 4.9 | 7.05 | WR159 | 1.05:1 | 7 | 12-13 Weeks | N/A | Request Quote |
| WTM-7-B-2 | Medium Power | 4.9 | 7.05 | WR159 | 1.10:1 | 625 | 12-13 Weeks | N/A | Request Quote |
| WM-7-2 | High Power | 4.9 | 7.05 | WR159 | 1.10:1 | 1300 | 12-13 Weeks | N/A | Request Quote |
| WL-7-F | Very High Power | 4.9 | 7.05 | WR159 | 1.15:1 | 3000 | 12-13 Weeks | N/A | Request Quote |
| WC-137S-A-6 | WC-S Series | 5.85 | 8.2 | WR137 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-137N-A-1 | WC-N Series | 5.85 | 8.2 | WR137 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-137NH-A-1 | WC-NH Series | 5.85 | 8.2 | WR137 | 1.25:1 | 350 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-137NU-2 | WC-NU Series | 5.85 | 8.2 | WR137 | 1.25:1 | 1350 | 12-13 Weeks | Peak Power: 6kW | Request Quote |
| WC-137T-A-6 | WC-T Series | 5.85 | 8.2 | WR137 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-137C-A-1 | WC-C Series | 5.85 | 8.2 | WR137 | 1.25:1 | 650 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-137D-A-1 | WC-D Series | 5.85 | 8.2 | WR137 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-8 | Low Power | 5.85 | 8.2 | WR137 | 1.05:1 | 6 | 12-13 Weeks | N/A | Request Quote |
| WTM-8-B-2 | Medium Power | 5.85 | 8.2 | WR137 | 1.10:1 | 500 | 12-13 Weeks | N/A | Request Quote |
| WM-8-2 | High Power | 5.85 | 8.2 | WR137 | 1.10:1 | 1000 | 12-13 Weeks | N/A | Request Quote |
| WM-8H-2 | High Power | 5.85 | 8.2 | WR137 | 1.10:1 | 1500 | 12-13 Weeks | N/A | Request Quote |
| WL-8-F | Very High Power | 5.85 | 8.2 | WR137 | 1.15:1 | 3000 | 12-13 Weeks | N/A | Request Quote |
| WL-8-2-A/3000 | Very High Power | 5.85 | 8.2 | WR137 | 1.15:1 | 3000 | 12-13 Weeks | N/A | Request Quote |
| WC-102S-A-6 | WC-S Series | 7 | 11 | WR102 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-102N-A-1 | WC-N Series | 7 | 11 | WR102 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-102NH-A-1 | WC-NH Series | 7 | 11 | WR102 | 1.25:1 | 300 | 12-13 Weeks | Peak Power: 5kW | Request Quote |
| WC-102NU-6 | WC-NU Series | 7 | 11 | WR102 | 1.25:1 | 1000 | 12-13 Weeks | Peak Power: 6kW | Request Quote |
| WC-102T-A-6 | WC-T Series | 7 | 11 | WR102 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WT-10 | Low Power | 7 | 11 | WR102 | 1.05:1 | 3 | 12-13 Weeks | N/A | Request Quote |
| WTM-10-A-6 | Medium Power | 7 | 11 | WR102 | 1.10:1 | 325 | 12-13 Weeks | N/A | Request Quote |
| WM-10-6 | High Power | 7 | 11 | WR102 | 1.10:1 | 500 | 12-13 Weeks | N/A | Request Quote |
| WC-112S-A-6 | WC-S Series | 7.05 | 10 | WR112 | 1.25:1 | 50 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
| WC-112N-A-1 | WC-N Series | 7.05 | 10 | WR112 | 1.25:1 | 200 | 12-13 Weeks | Peak Power: 3kW | Request Quote |
Full Product Line Specifications
| Parameter | Waveguide Isolators (ISW) | Waveguide Circulators (CSW) | Coaxial-to-Waveguide Adapters | Waveguide Terminations |
|---|---|---|---|---|
| Frequency Range | 1.12 to 60 GHz | 1.12 to 60 GHz | 0.75 to 50 GHz | 1.12 to 60 GHz |
| Insertion Loss | As low as 0.4 dB | As low as 0.4 dB | VSWR 1.25 Max; 1.05 Typ over 15% BW | N/A |
| Isolation | 20 dB and above | N/A | N/A | N/A |
| VSWR | As low as 1.35:1 | Series-dependent | 1.05 to 1.25 model-dependent | 1.15 Max |
| Power Handling | High power models available | High power models available | Full waveguide band rated | Very high power models available |
| Body Material | Aluminum, copper-brass per order | Aluminum, copper-brass per order | Aluminum, copper-brass per order | Aluminum 6061 |
| Pressure Sealing | To 30 PSI on request | To 30 PSI on request | 10 PSI standard; 30 PSI precision models | To 30 PSI on request |
| Flange Options | CPRG, CPRF, CMR, UG-cover, UG-choke, PDR, UDR, special | Same as isolator | Multiple flanges on request | Same as isolator |
| Coaxial Connector Options | N/A | N/A | SMA, Type N, TNC, Type SC, 7/16 DIN per MIL-C-39012 | N/A |
| Finish | Series-dependent | Series-dependent | 316 SS epoxy corrosion-resistant | Hi-temp black paint |
Where MCLI Waveguide Components Are Used
High Power Radar Transmitter Paths
Waveguide feed systems carry transmitter output power levels that coaxial cannot handle at X-band and above. Waveguide isolators in the transmit path absorb reflected power from antenna load changes, protecting the transmitter output stage. Waveguide terminations rated for very high power handle the energy routed to terminated ports without damaging reflections back into the system.
Satellite Uplink and Ground Station Systems
Ku-band and Ka-band ground stations use coaxial-to-waveguide adapters to transition from the coaxial output of a high power amplifier into the waveguide feed to the dish. MCLI adapters are built with 316 stainless steel corrosion-resistant finishes and pressure sealing for outdoor installation environments.
Millimeter Wave Test and Instrumentation
VNAs and signal generators characterizing waveguide-interfaced devices connect through coaxial-to-waveguide adapters. The adapter’s VSWR directly affects calibration accuracy, so MCLI’s 1.05 typical VSWR over 15 percent bandwidth supports precise millimeter wave network analysis.
Waveguide Band Reference
| Band | Frequency Range | Common WR Designation |
|---|---|---|
| L-band | 1.0 to 2.0 GHz | WR650, WR430 |
| S-band | 2.0 to 4.0 GHz | WR284, WR229 |
| C-band | 4.0 to 8.0 GHz | WR187, WR137 |
| X-band | 8.0 to 12.4 GHz | WR112, WR90 |
| Ku-band | 12.4 to 18.0 GHz | WR62 |
| K-band | 18.0 to 26.5 GHz | WR42 |
| Ka-band | 26.5 to 40.0 GHz | WR28 |
| V-band | 40.0 to 60.0 GHz | WR19, WR15 |
Frequently Asked Questions: Waveguide Components
When Should I Use Waveguide Instead of Coaxial?
Waveguide is the better choice when insertion loss in coaxial becomes significant at your operating frequency and power level, typically above 6 to 8 GHz in longer runs, and wherever power handling requirements exceed what coaxial connectors can safely carry. Below those thresholds, coaxial is simpler and more practical.
What Is the Difference Between a Waveguide Isolator and a Waveguide Circulator?
A waveguide circulator is a three-port non-reciprocal device that routes signals in one defined direction between ports. A waveguide isolator is a circulator with the third port internally terminated, creating a two-port device that passes forward signals with low loss and absorbs reverse-traveling signals. Use a circulator when you need three-port signal routing; use an isolator when you need source protection in a two-port path.
What Flange Types Does MCLI Support?
MCLI supplies waveguide components with CPRG, CPRF, CMR standard, CMR thru, CMR tap, UG-cover, UG-choke, UG-cover with groove, PDR, UDR, and special flanges. Contact MCLI with your waveguide band and mating flange to confirm the right configuration.
Can Waveguide Components Be Pressurized?
Yes. Pressurization with dry nitrogen prevents moisture ingress in outdoor and airborne installations. MCLI waveguide terminations and isolators can be pressure sealed to 30 PSI on request. Coaxial-to-waveguide adapters are sealed to 10 PSI standard, with 30 PSI precision models available.