Broadband HF dismount antenna
AssigneeHarris Global Communications, Inc.
InventorsJames P. Lill, Alan A. Scanandoah
Life of this patent
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Abstract
Broadband HF antenna system includes a conductive radiating element in the form of a continuous conductive loop. The conductive loop includes first and second elongated conductor portions. The conductive loop is electrically connected at first and second loop ends to an impedance matching network disposed within a chassis. The first elongated conductor portion is comprised of a whip antenna which functions as a cantilevered spring attached at one end to the rigid chassis. The whip antenna is resiliently maintained in a curved state by a tension force applied by the second elongated conductor portion. A spacing or gap between the first and second elongated conductor portions to establish the loop configuration is maintained exclusive of any spacer or hanger element.
Claims19
A broadband HF antenna system, comprising
- a rigid chassis having a first connector and a second connector;
- and
- a conductive radiating element in the form of a single continuous conductive loop, the single continuous conductive loop comprised of:
- a first elongated conductor portion electrically connected at a first end to the first connector, and
- a second elongated conductor portion electrically connected at a second end to the second connector;
- wherein the first elongated conductor portion is electrically releasably connected at a tip end of the second elongated conductor that is remote from the rigid chassis and opposed from the second end;
- and
- wherein the first elongated conductor portion is responsive to a pulling tension directly applied to the tip end by the second elongated conductor portion, whereby the first elongated conductor portion is resiliently conformed to a state of curvature in which a variable sized gap is defined between the first elongated conductor portion and the second elongated conductor portion.
A broadband HF antenna system, comprising
- a rigid chassis containing an impedance matching network;
- a radiating element in the form of a single continuous conductive loop comprised of a first and second elongated conductor portions electrically connected to the impedance matching network;
- the first elongated conductor portion attached at a proximal end to the rigid chassis, attached at a distal end directly to a distal end of the second elongated conductor portion, and resiliently urged to a curved state by a tension pulling force applied by the second elongated conductor portion directly to the first elongated conductor portion;
- and
- the second elongated conductor portion comprises an elongated flexible wire, and a proximal end that is coupled to the rigid chassis;
- wherein a spacing between the first and second elongated conductor portions necessary to establish the single continuous conductive loop is maintained exclusive of any spacer or hanger element.
A method of forming a broadband HF antenna system, comprising:
- fixing a whip antenna to a first antenna connector disposed on a rigid chassis to establish a first electrical connection to an impedance matching network;
- forming at a location distal from the rigid chassis an electrical connection directly between a first elongated conductor portion of the whip antenna and an elongated conductor wire to define a single continuous conductor loop antenna radiating element;
- applying a tension pulling force by the elongated conductor wire to impart a curvature to the whip antenna, whereby a gap distance changes value between the elongated conductor wire and the whip antenna along an elongate length of the single continuous conductor loop antenna radiating element;
- releasably securing the elongated conductor wire to an anchor provided on the rigid chassis so as to maintain the tension;
- and
- electrically connecting the elongated conductor wire to a second antenna connector disposed on the rigid chassis to establish a second electrical connection to the impedance matching network.
Dependencies are inferred from the claim text.