Title :
Novel K-band prime focus reflector-coupled focal plane array
Author :
Locke, Lisa S. ; Bornemann, Jens ; Claude, Stephane
Author_Institution :
Dept. of Electr. Eng., Univ. of Victoria, Victoria, BC, Canada
Abstract :
A wideband focal plane array (FPA) covering the full K-band (18 - 26.5 GHz) is proposed for use in passive imaging and microwave astronomy. Focal plane arrays are revolutionizing microwave and millimeter-wave imaging by replacing conventional single-pixel feed horns with arrays of planar elements, decreasing the survey time dramatically. The extent and element spacing of a rectangular array is determined by comparing classic and encircled power techniques. A prime focus reflector-feed configuration is considered with f/D=0.45. Far-field performances of arrays of simple Gaussian feeds and also imported Vivaldi feeds, which include mutual coupling between elements, are evaluated by PO/PTD techniques.
Keywords :
focal planes; millimetre wave imaging; planar antenna arrays; reflector antenna feeds; FPA covering; Gaussian feeds; K-band prime focus reflector coupled focal plane array; Vivaldi feeds; encircled power techniques; far field performances; microwave astronomy; millimeter wave imaging; mutual coupling; passive imaging; planar elements; prime focus reflector feed configuration; rectangular array; single pixel feed horns; wideband focal plane array; Arrays; Feeds; Finite element analysis; Gain; Imaging; Mutual coupling; Focal plane array; K-band; antipodal Vivaldi antenna; mutual coupling; prime focus reflector; wideband;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
