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Waveguide High-Power Loads



Microwave Techniques manufactures waveguide high-power loads for microwave and RF applications. High-power loads are offered in several configurations. Air cooled loads are available to handle most medium power applications, while numerous styles of water cooled loads are available for high power applications.

Our comprehensive line entails several design types and configurations for low, medium, and high-power settings. Whether your project requires air cooled, liquid cooled, super high power, or minimum cost and weight objectives, Microwave Techniques has a wide ranging portfolio of loads for customers to select from.

Microwave Techniques sales engineers are readily available to discuss custom load requirements.

If you do not see the specific waveguide high-power load you require, contact sales@microwavetech.com to discuss your exact product requirements with a technical sales engineer.

Please note all product data, specifications, and descriptions are subject to change at the sole discretion of Microwave Techniques and must be confirmed at the time of order.
High Power Waveguide Loads
Unit of Measure
Items 69618-706
69618-706
WR650 (R14) Waveguide High-Power Load 		69618-000
69618-000
WR650 (R14) Waveguide High-Power Load 		77858-701
77858-701
WR975 (R9) Waveguide High-Power Load 		67007-703
67007-703
WR975 (R9) Waveguide High-Power Load 		67856-000
67856-000
WR1150 (R8) Waveguide High-Power Load
Type N/A High-Power Loads
Product # N/A 69618-706 N/A 69618-000 N/A 77858-701 N/A 67007-703 N/A 67856-000
Type N/A Waveguide High-Power Loads
Waveguide Size N/A WR650 (R14) N/A WR650 (R14) N/A WR975 (R9) N/A WR975 (R9) N/A WR1150 (R8)
Frequency N/A 1300 MHz N/A 1135-1729 MHz N/A 890-935 MHz N/A 890-935 MHz N/A 641-977 MHz
Bandwidth N/A 10 MHz N/A 10 MHz N/A 5 MHz N/A 5 MHz N/A 5 MHz
VSWR N/A 1.05:1 Max N/A 1.05:1 Max N/A 1.20:1 Max N/A 1.08:1 Max N/A 1.10:1 Max
Wall N/A 0.25 in N/A 0.25 in N/A 0.125 in N/A 0.125 in N/A 0.125 in
Dimensional Drawing N/A
Power1 N/A
Finish N/A RoHS Compliant Per MIL-DTL-5541
Material N/A Aluminum/ Stainless Steel N/A Aluminum/ Stainless Steel N/A Aluminum/Copper/Brass N/A Aluminum/Copper/Brass N/A Aluminum/ Stainless Steel
Pressure N/A
Cooling Media N/A DI or Tap Water
Inlet Temp N/A 68-104 (Exact Value To Be Specified By Customer)
Input Temp Tolerance N/A +/- 2 ºF
Minimum Flow Rate N/A 20 gpm N/A 20 gpm N/A 10 gpm N/A 25 gpm N/A 15 gpm
Max Coolant Pressure N/A 120 psig N/A 120 psig N/A 80 psig N/A 100 psig N/A 175 psig
Waveguide Pressure N/A N/A N/A N/A- Not Hermetic N/A N/A
Peak Power N/A Data requires discussion with Microwave Techniques
Average Power N/A 100 kW N/A 100 kW N/A 75 kW N/A 150 kW N/A 150 kW
Coolant Fittings N/A 1" Cam and Groove Male/Female N/A 1" Cam and Groove Male/Female N/A 1-1/16-12 UNF (JIC) 37° For 3/4" Tube N/A 3/4" Cam and Groove Male/Female N/A 2" Cam and Groove Male/Female
Waveguide Pressure N/A 15 psig N/A 15 psig N/A N/A 0.25 psig N/A 0.25 psig
Interface N/A EIA-271 CPRF
Weight N/A 48 lb N/A 48 lb N/A 16 lb N/A 51 lb N/A 150 lb
Paint N/A Microwave Techniques Grey/Waterload Blue
Marking N/A Standard Label Containing PN, SN, QR Code
  • 1
  • 30,000 V/cm Breakdown Voltage
  • Unpressurized Waveguide
  • 1:00:1 VSWR
  • Average power is based upon unpressurized painted aluminum waveguide, internal surface finish of 63µm, under free convective cooling with an operating temperature that is 25oC above ambient temperature. Cooling options should be considered if the waveguide will be operating at higher average power levels - please consult factory.