Title :
Planar high-gain antipodal linearly tapered slot antenna for passive millimeter-wave focal plane array imaging
Author :
Wen Wang ; Xuetian Wang ; Wei Wang ; Fathy, Aly E.
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
In this work, a novel antipodal linearly tapered slot antenna (ALTSA) using microstrip-to-substrate integrated waveguide (SIW) transition is proposed and demonstrated. The antenna is well designed for use as a feed antenna in an 8mm focal plane array (FPA) imaging system. SIW feeding system is used for its salient features for microwave and millimeter-wave applications, including low-cost fabrication. PCB technology is used to fabricate the SIW antenna in a single layer structure. The fabricated antenna was measured and good agreement was obtained between the simulation and measurement results. The S11 of the proposed antenna is below -12dB over the Ka-band, meanwhile, the E-plane side lobe is almost 14dB down. The feed antenna was placed on the focal plane of a reflector antenna and its side lobe level drops to 40dB down, which shows us its high suitability for passive millimeter-wave (PMMW) focal plane array imaging systems.
Keywords :
antenna feeds; focal planes; millimetre wave antennas; millimetre wave imaging; planar antennas; slot antennas; substrate integrated waveguides; waveguide transitions; Ka-band antenna; antipodal linearly tapered slot antenna; feed antenna; feeding system; high gain antenna; microstrip-to-substrate integrated waveguide transition; passive millimeter wave focal plane array imaging systems; planar antenna; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Imaging; Microstrip; Millimeter wave technology; Antipodal linearly tapered slot antenna; Focal plane array; Passive millimeter-wave; Substrate integrated waveguide;
Conference_Titel :
Phased Array Systems & Technology, 2013 IEEE International Symposium on
Conference_Location :
Waltham, MA
DOI :
10.1109/ARRAY.2013.6731839
