Lightning rod
AssigneeHENSOLDT Sensors GmbH
InventorsRalf Lorch, Rainer Mueller, Markus Forkel
Life of this patent
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Abstract
A lightning rod for protecting an antenna system involves a lightning rod having a plurality of sections. Each section of the plurality of sections has a dimension. The dimension is less than a quarter of a wavelength according to an operating frequency of the antenna system to be protected. The plurality of sections is inductively coupled. The lightning rod can also be part of a group of lightning rods, and a system of a lightning rod or a group of lightning rods with an antenna system.
Claims9
A lightning rod for protecting an antenna system, wherein the lightning rod comprises:
- a plurality of sections, wherein each section of the plurality of sections extends in a longitudinal direction less than a quarter of a wavelength according to an operating frequency of the antenna system to be protected, wherein neighboring sections of the plurality of sections are inductively coupled,
- wherein the sections of the plurality of sections are inductively coupled by inductive coupling elements, respectively, and
- wherein
- each of the inductive coupling elements has a dimension that is less than one half of a dimension of each of the plurality of sections, or
- the inductive coupling elements include air coils.
A lightning rod for protecting an antenna system, wherein the lightning rod comprises:
- a plurality of sections, wherein each section of the plurality of sections extends in a longitudinal direction less than a quarter of a wavelength according to an operating frequency of the antenna system to be protected, wherein neighboring sections of the plurality of sections are inductively coupled,
- wherein the sections of the plurality of sections are inductively coupled by inductive coupling elements, respectively, and
- wherein
- consecutive sections of the plurality of sections are directly connected by a respective one of the inductive coupling elements, or
- a number of sections of the plurality of sections is at least N, and wherein a number of the inductive coupling elements is at least N-1, where N is a natural number greater than 3.
A lightning rod for protecting an antenna system, wherein the lightning rod comprises:
- a plurality of sections, wherein each section of the plurality of sections extends in a longitudinal direction less than a quarter of a wavelength according to an operating frequency of the antenna system to be protected, wherein neighboring sections of the plurality of sections are inductively coupled,
- wherein
- the sections of the plurality of sections are inductively coupled by inductive coupling elements, respectively, and wherein the inductive coupling elements are coils with respective damping elements, or
- the lightning rod has a metallic rod, and wherein consecutive sections of the plurality of sections are inductively coupled by a ferrite arranged around the metallic rod between the consecutive sections of the plurality of sections.
Dependencies are inferred from the claim text.