High-power RF load

Details High-power RF load High-power RF load

1997-05-01

1998-09-01

Gensler, Paul

Wave transmission lines and networks

Dissipating terminations for long lines

Fluid-cooling

333 81B, H01P 126

Patent

active

058015981

ABSTRACT:
A compact high-power RF load comprises a series of very low Q resonators, absorb the RF power gradually in a short distance while keeping the is provided to convert incoming TE.sub.10 mode signals to circularly polarized TE.sub.11 mode signals. Because the load operates in the circularly polarized mode, the energy is uniformly and efficiently absorbed and the load is more compact than a rectangular load. Using these techniques, a load having a bandwidth of 500 MHz can be produced with an average power dissipation level of 1.5 kW at X-band, and a peak power dissipation of 100 MW. The load can be made from common lossy materials, such as stainless steel, and is less than 15 cm in length. These techniques can also produce loads for use as an alternative to ordinary waveguide loads in small and medium RF accelerators, in radar systems, and in other microwave applications. The design is easily scalable to other RF frequencies and adaptable to the use of other lossy materials.

REFERENCES:
patent: 2561130 (1951-07-01), McClellan
patent: 3138769 (1964-06-01), DeWitt
patent: 3634783 (1972-01-01), Rooney
patent: 3772619 (1973-11-01), Clarricoats

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