Title :
A grating lobe filter for transverse slot arrays
Author_Institution :
Ericsson Radar Electron. AB, Molndal, Sweden
Abstract :
The author presents a technique for preventing the grating lobes from radiating from a transverse slot array phased to generate a broadside beam. The grating lobes radiated from a sparse array are eliminated by the filtering action of a parallel plate region extending about half a wavelength in front of the array. This method works for arrays with longitudinal polarization. In addition, the impedance characteristics of a transverse slot array with and without the filtering section are demonstrated by measurements on a half-height waveguide array.<>
Keywords :
antenna radiation patterns; microwave antenna arrays; waveguide antennas; broadside beam; grating lobe filter; half-height waveguide array; impedance characteristics; longitudinal polarization; parallel plate region; sparse array; transverse slot arrays; waveguide antenna; Antenna arrays; Antenna measurements; Arrayed waveguide gratings; Attenuation; Filtering; Filters; Impedance; Phased arrays; Resonance; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.175052
