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US 11,539,118 B2Granted
Multi-polarization HF NVIS for vertical lift aircraft
AssigneeRockwell Collins, Inc.
InventorsJoseph T. Graf, James B. West
Life of this patent
Estimating the term…
Abstract
A system of high-frequency (HF) antennas is disposed on various aircraft body panels. The antennas are configured for orthogonal polarization such that NVIS may be operable no matter the state of the ionosphere. The antennas are disposed on substantially perpendicular body panels so that, when operated in concert, the resulting signals have opposite polarization and at least one signal will bounce off the ionosphere.
Claims20
An aircraft antenna system comprising:
- at least two antennas, each corresponding to an aircraft body panel;
- a common feed network configured to drive each of the at least two antennas;
- and
- at least one processor connected to the common feed network and a memory for storing processor executable code,
- wherein:
- a first antenna in the at least two antennas is configured for horizontal polarization;
- a second antenna in the at least two antennas is configured for vertical polarization;
- and
- each aircraft body panel comprises a continuous lightning strike protection layer disposed to be coplanar with the corresponding antenna, except where the corresponding antenna is disposed in the aircraft body panel, where the continuous lighting strike protection layer is recessed below the corresponding antenna.
6 more elements
An aircraft comprising:
- at least two body panels, each comprising at least one high-frequency (HF) antenna;
- a common feed network configured to drive each antenna of the at least two body panels;
- and
- at least one processor connected to the common feed network and a memory for storing processor executable code,
- wherein:
- a first body panel antenna is configured for a first polarization;
- a second body panel antenna is configured for a second polarization;
- and
- each body panel comprises a continuous lightning strike protection layer disposed to be coplanar with the corresponding HF antenna, except where the corresponding HF antenna is disposed in the aircraft body panel, where the continuous lighting strike protection layer is recessed below the corresponding HF antenna.
6 more elements
A system of antennas comprising:
- at least two high-frequency (HF) antennas each embedded in a body panel;
- a common feed network configured to drive each of the at least two HF antennas;
- and
- at least one processor connected to the common feed network and a memory for storing processor executable code,
- wherein:
- a first antenna in the at least two HF antennas is configured for a first polarization;
- a second antenna in the at least two HF antennas is configured for a second polarization;
- and
- each body panel comprises a continuous lightning strike protection layer disposed to be coplanar with the corresponding HF antenna, except where the corresponding HF antenna is disposed in the body panel, where the continuous lighting strike protection layer is recessed below the corresponding HF antenna.
6 more elements
Dependencies are inferred from the claim text.