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US 3,963,989 AGranted
Mixer stage for microwave receivers
AssigneeInstitutet for Mikrovigsteknik
InventorsFlorian Sellberg, Peter Weissglas
Life of this patent
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Abstract
A mixture stage for microwave receivers for generating an intermediate frequency signal utilizes a diode including a forward biassed and reverse biassed junction in series placed in a microwave transmission line to which the received signal and the local oscillator signal are supplied.
Claims6
In a mixer for a microwave receiver and being responsive to a local oscillator signal and a received signal, the improvement comprising in combination:
- a pair of coupled waveguides respectively having said local oscillator signal and said received signal applied thereto;
- at least one barrier injection and transit time diode located in one of said pair of waveguides, said diode being operated in a non-oscillatory mode for mixing said local oscillator signal and said received signal to produce an intermediate frequency signal thereby;
- and
- means connected to said diode for coupling said intermediate frequency signal from said diode.
1 more element
Dependencies are inferred from the claim text.