High power broadband termination for k-band amplifier combiners

Details High power broadband termination for k-band amplifier combiners High power broadband termination for k-band amplifier combiners

1996-08-23

1998-11-03

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

330295, 333 22R, 333 81A, H01P 512, H01P 122, H01P 126

Patent

active

058314911

ABSTRACT:
An extremely broad band high power termination (10) for microwave and millimeter frequency amplifiers combines a standard resistive low frequency termination (15) with a broad band high frequency absorptive element (13) using an absorptive material such as Eccosorb. A mid-band matching network (14) is provided between the resistive termination (15) and the Eccosorb absorptive element (13). The Eccosorb absorbs the energy of the higher microwave frequencies while the resistor absorbs energy at low frequencies. Accordingly, a much higher power handling capability in a compact planer environment is achieved. This termination (10) is suitable use for use in K-band power amplifier combiners (30) that require high isolation and high power handling capability of the isolated ports (35).

REFERENCES:
patent: 4024478 (1977-05-01), Wolfe
patent: 4647877 (1987-03-01), Thompson
patent: 5151676 (1992-09-01), Sato
patent: 5313174 (1994-05-01), Edwards
Wideband Microstrip Termination, Walter Fischer and Werner Wiesbeck, Heft 2, NTZ 1973, 83-85.
Design of High Resistance Non-Grounded Braodband Loads in Terminations and Attenuators, L.J. Peter Linner, Chalmers University of Technology, Div. Network Theory S-412 96, pp. 465-466.

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