Wave transmission lines and networks – Automatically controlled systems – Impedance matching
Patent
1981-02-12
1982-08-10
Nussbaum, Marvin L.
Wave transmission lines and networks
Automatically controlled systems
Impedance matching
333164, 333258, 333247, 357 51, H01P 115, H01P 316, H01L 2706
Patent
active
043440479
ABSTRACT:
Disclosed is a millimeter wave bulk effect RF power limiter consisting of a lanar PIN diode formed on a gallium arsenide (GaAs) substrate which also comprises the waveguide structure for RF energy in the 60-300 GHz range. The PIN diode is comprised of a wedge of intrinsic type semiconductor material formed across the top surface of the substrate and having mutually opposing regions of p and n type semiconductor material fabricated in the side edges of the wedge to which is attached planar beam leads. With suitable electrical operating potentials applied to the PIN diode avalanche breakdown occurs at a critical RF power level which acts to limit the flow of RF energy flow in the structure past the location of the PIN diode. Such a structure permits the device to be integrated into the front end sections of receivers utilized in communications, missile guidance and radar systems operable in the millimeter and sub-millimeter frequency range.
REFERENCES:
patent: 3226661 (1965-12-01), Garver et al.
patent: 3750055 (1973-07-01), Funck
patent: 4200880 (1980-04-01), Frey
patent: 4292643 (1981-09-01), Kellner et al.
Edelberg Nathan
Gordon Roy E.
Murray Jeremiah G.
Nussbaum Marvin L.
The United States of America as represented by the Secretary of
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