Patent ID: 6518935
Filing Date: 2003-02-11
Classification: H01Q

Abstract:
Device for transmitting and/or receiving electromagnetic waves comprising at least one antenna with at least one radiating element transmitting and/or receiving signals of given polarization and a feed array produced in microstrip technology consisting of lines comprising bends giving parasitic radiation wherein in the case of a linearly polarized antenna, the lengths of lines Li (i=1,2) on each side of a bend are given by the following equations:L1=&lgr;{fraction (1/2)}+k1&lgr;1 k1=0,1,2, . . . L2=k2&lgr;2 k2=0,1,2, . . . where &lgr;i represents the wavelength guided in the line of the feed array of length Li with: &lgr;i=30/(f{square root over (&egr;r eff)}) with f: working frequency &egr;r eff: effective permittivity of the material for the portion of line of length Li.