Patent ID: 6606074
Filing Date: 2003-08-12
Classification: H01Q

Abstract:
Dual band circular polarization-capable portable antenna apparatus comprising the combination of:an ultra high radio frequency first array of dipolar antenna elements disposed in a first geometric plane and extending along an antenna boom member in ultra high radio frequency Yagi/Uda element separations; said ultra high radio frequency first array of dipolar antenna elements including an ultra high radio frequency energy radiator element disposed intermediate an ultra high radio frequency reflector element and a plurality of ultra high radio frequency director elements along said antenna boom member; an ultra high radio frequency and very high radio frequency second array of dipolar antenna elements extending in ultra high radio frequency Yagi/Uda element separations along said antenna boom member within a second geometric plane orthogonal of and coaxial of said first geometric plane; said ultra high radio frequency and very high radio frequency second array of dipolar antenna elements including an ultra high radio frequency energy radiator element disposed intermediate an ultra high radio frequency reflector element and a plurality of director elements, including dual radio frequency wavelength director elements of combined very high radio frequency and tuned wave-trap limited ultra high radio frequency effective electrical lengths, along said antenna boom member; said dual radio frequency director elements of combined very high radio frequency and tuned wave-trap limited ultra high radio frequency effective electrical lengths additionally comprising a very high radio frequency-tuned antenna energy radiator element and a very high radio frequency-tuned antenna director element; said ultra high radio frequency and very high radio frequency second array of dipolar antenna elements extending in said second geometric plane along said antenna boom member in interspersed antenna elements relationship with said first geometric plane first array of ultra high radio frequency dipolar antenna elements; and an electrical signal frequency responsive and signal phase splitting electrical network apparatus disposed intermediate an electrical port of said circularly polarized portable antenna apparatus and each of said antenna energy radiator elements; said signal phase splitting electrical network of said electrical signal frequency responsive and signal phase splitting electrical network apparatus having output signal ports connecting with said ultra high radio frequency energy radiator elements of said first and second arrays of dipolar antenna elements in circular polarized wave generating element phasing determination.