Communications system including selectable impedance using an alternating pulse width modulation scheme and related methods
AssigneeL3Harris Global Communications, Inc.
InventorsJoseph D. Majkowski, Thomas Michael DiSanto
Life of this patent
Estimating the term…
Abstract
A communications system may include radio frequency (RF) circuitry, an antenna assembly, and an RF cable coupling the RF circuitry and the antenna assembly. The antenna assembly may include an antenna and RF impedance selection circuitry coupled thereto. The RF circuitry may be configured to communicate RF signals with the antenna via the RF cable, and communicate RF impedance selection signals to the RF impedance selection circuitry via the RF cable and using an alternating pulse width modulation scheme.
Claims22
A communications system comprising:
- radio frequency (RF) circuitry, an antenna assembly, and an RF cable coupling the RF circuitry and the antenna assembly;
- the antenna assembly comprising an antenna and RF impedance selection circuitry coupled thereto;
- the RF circuitry configured to
- communicate RF signals with the antenna via the RF cable, and
- communicate RF impedance selection signals to the RF impedance selection circuitry via the RF cable and using an alternating pulse width modulation scheme.
A communications system comprising:
- radio frequency (RF) circuitry, an antenna assembly, and a coaxial cable coupling the RF circuitry and the antenna assembly;
- the antenna assembly comprising an antenna, and RF selection circuitry coupled to the antenna, the RF selection circuitry comprising an impedance transformer coupled to the antenna and a plurality of switches coupled to the impedance transformer;
- the RF circuitry configured to
- communicate RF signals with the antenna via the coaxial cable, and
- communicate RF impedance selection signals to the RF impedance selection circuitry via the RF cable and using an alternating pulse width modulation scheme.
A method of communicating using a communications system comprising radio frequency (RF) circuitry, an antenna assembly, and an RF cable coupling the RF circuitry and the antenna assembly, the method comprising:
- operating the RF circuitry to communicate RF signals with an antenna of the antenna assembly via the RF cable;
- and
- operating the RF circuitry to communicate RF impedance selection signals to RF impedance selection circuitry of the antenna assembly via the RF cable and using an alternating pulse width modulation scheme.
Dependencies are inferred from the claim text.