Tunable antenna having adjustable loop configurations
OwnerMarshall Stebbins Tislerinventor
Life of this patent
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Abstract
The antenna structure possesses a multi-sided configuration with means being provided for equally changing the lengths of at least two sides facing each other to thereby adjustably vary the physical size of the antenna. A parasitic reflector having a similar configuration and means for adjustability is positioned a predetermined distance behind the antenna proper for increasing the gain of the antenna structure.
Claims16
An antenna assembly comprising an element, a plurality of support points for supporting said element, at least one of said support points being yieldably movable, and means for controlling the physical dimensions of said element to achieve tuning of said element to a predetermined frequency, said element comprising a plurality of flexible conductors defining a multi-sided configuration having a plurality of corners, each corner being supported by one of said support points, two of said flexible conductors having free ends converging toward each other and toward one of said corners to define a feedpoint passing through and beyond said corner, said control means being securable to said free ends to control tension applied thereto to vary the lengths of said flexible conductors between said support points.
An antenna assembly comprising at least a pair of driven antennas and at least one parasitic antenna associated with each of said driven antennas, a plurality of support points for supporting each antenna, at least one of said points being yieldable, and control means for simultaneously controlling the physical dimensions of all of said antennas for tuning said antennas for transmission at predetermined frequencies, each antenna comprising a plurality of flexible conductors defining a multi-sided configuration having a plurality of corners, each corner being supported by one of said support points, two of said flexible conductors having free ends converging toward each other and toward one of said support points and passing through said corner, said control means being securable to said free ends to control the tension applied thereto to vary the lengths of at least two of said flexible conductors.
Dependencies are inferred from the claim text.