Ka Band Forced Air Cooled Absorptive Load

WR28 Air Cooled High Power Load for Ka Band Applications

This product is a professional Waveguide Load featuring forced air cooling for high power applications. The Load operates from 26.5GHz to 40GHz in the Ka band and features a WR28 (BJ320) waveguide interface. As an Air Cooled Load, it relies on forced air flow from a fan to dissipate heat and absorb high power electromagnetic energy. The core function is to prevent energy reflection that could damage the system. The construction uses aluminum material with conductive oxidation and paint coating for durability. The interface is FBP320 flange for standard connection to WR28 waveguide systems. Custom options are available upon request.

This air cooled high power load delivers excellent electrical performance across its operating range from 26.5GHz to 40GHz. The Voltage Standing Wave Ratio (VSWR) is rated at 1.25, which shows good impedance matching across the Ka band. The average power handling is suitable for demanding high power transmission applications at millimeter wave frequencies. The forced air cooling design provides effective heat dissipation without the need for water circulation. The structure is relatively simple with no water lines, eliminating the risk of water leakage and reducing maintenance costs. Deployment is flexible without the need for a water source, making this load suitable for locations where water access is limited or inconvenient. Start up is fast since no cooling media preparation is required.

One clear strength of this Air Cooled Load is its deployment flexibility and low maintenance. It is widely used in high power microwave transmission systems, defense electronic warfare and radar systems, industrial microwave equipment, RF high power test laboratories, and emerging network base station high power RF systems. The Ka band coverage from 26.5GHz to 40GHz makes this load suitable for satellite communication, radar, and millimeter wave applications. The air cooling design eliminates the need for external water cooling infrastructure, simplifying installation in remote or field locations. The standard WR28 interface ensures compatibility with common Ka band waveguide systems.

In practical use, this Air Cooled Load handles professional high power millimeter wave tasks very well. For defense radar and electronic warfare systems operating at Ka band, it terminates high power transmitter ports safely. For RF high power test laboratories, this load is essential for amplifier testing and system verification at millimeter wave frequencies. For base station RF systems, it handles power during installation and maintenance. The FBP320 flange mates securely with standard WR28 components. The forced air cooling ensures stable operation even during extended high power testing. It stands as a solid example of a well designed air cooled high power waveguide load for Ka band applications from 26.5GHz to 40GHz.