Compact portable antenna for terrestrial digital television
AssigneeThomas Licensing
InventorsJean-Francois Pintos, Philippe Minard, Ali Louzir
Life of this patent
Estimating the term…
Abstract
The present invention relates to a portable compact antenna formed from a first dipole type element operating in a first frequency band and comprising a first and at least one second conductive arm, differentially supplied, the first arm or cold arm forming at least one cover for an electronic card and the second arm or hot arm being constituted by a U-shaped conductive element realized on an insulating substrate. Further, a radiating element with bends is realized between the branches of the U-shaped element and is dimensioned to operate in a second frequency band.
Claims10
A portable compact antenna formed from a dipole type element operating in a first frequency band and comprising a first conductive arm and at least one second arm, said first and second arms being interconnected at a level of a feed point to be differentially supplied, said second arm being constituted by a U-shaped conductive element, realized on an insulating substrate, said U-shaped conductive element comprising two branches linked together at the level of said feed point, wherein the second arm includes a second radiating element dimensioned to operate in a second frequency band, and constituted by a conductive element realised on the insulating substrate between the two branches of the U-shaped element, the length of the conductive element being determined by k*λ2/2−L1 where λ2 is the wavelength at the central frequency of the second frequency band, k is a positive integer corresponding to a harmonic of the second frequency band and L1 is the length of the first arm.
Dependencies are inferred from the claim text.