Frequency selective limiter having reduced spike leakage
AssigneeMetamagnetics, Inc.
InventorsScott M. Gillette, Mahima Shukla
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Abstract
Described is a frequency selective limiter (FSL) module comprising a cascade of an FSL and a functional limiter (e.g. a conventional semiconductor limiter comprising a PIN diode) with steady state limiting and power threshold values selected such the FSL module provides suppression of a spike leakage power and while still enabling frequency selective limiting.
Claims31
A frequency selective limiter (FSL) module comprising:
- a radio frequency (RF) ferrite-based FSL having an input, an output and a steady-state limited output power characteristic;
- and
- an RF functional limiter coupled to an output of the ferrite-based FSL, wherein the RF functional limiter is a semiconductor limiter.
A frequency selective limiter (FSL) module comprising:
- a radio frequency (RF) ferrite-based FSL having an input and an output;
- and
- an RF functional limiter coupled to an output of the ferrite-based FSL, wherein the functional limiter is a gas discharge device.
A frequency selective limiter (FSL) module comprising:
- a radio frequency (RF) ferrite-based FSL stage having a spike leakage characteristic;
- and
- an RF functional limiter stage coupled to an output of the ferrite-based FSL stage, wherein characteristics of the RF ferrite-based FSL stage and the RF functional limiter stage are selected such that the combination of the RF functional limiter stage and the RF ferrite-based FSL stage provide the FSL module having a spike leakage characteristic which is reduced compared with the spike leakage characteristic of the RF ferrite-based FSL stage.
A frequency selective limiter (FSL) module having an FSL module input and an FSL module output, the FSL module comprising:
- one or more FSL stages, each of the one or more FSL stages comprising a ferrite and having an FSL stage input, an FSL stage output and a steady-state limited output power characteristic;
- and
- one or more radio frequency (RF) functional limiter stages, each of the one or more RF functional limiter stages coupled to an output of at least one of the one or more FSL stages.
A frequency selective limiter (FSL) module comprising:
- a radio frequency (RF) ferrite-based FSL having an input, an output and a steady-stage limited output power characteristic;
- and
- at least one RF functional limiter stage integrated with the RF ferrite-based FSL.
Dependencies are inferred from the claim text.