Title :
The DESDynI synthetic aperture radar array-fed reflector antenna
Author :
Chamberlain, Neil ; Ghaemi, Hirad ; Giersch, Louis ; Harcke, Leif ; Hodges, Richard ; Hoffman, James ; Johnson, William ; Jordan, Rolando ; Khayatian, Behrouz ; Rosen, Paul ; Sadowy, Gregory ; Shaffer, Scott ; Shen, Yuhsyen ; Veilleux, Louise ; Wu, Patric
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
DESDynI is a mission being developed by NASA with radar and lidar instruments for Earth-orbit remote sensing. This paper focuses on the design of a large-aperture antenna for the radar instrument. The antenna comprises a deployable reflector antenna and an active switched array of patch elements fed by transmit / receive modules. The antenna and radar architecture facilitates a new mode of synthetic aperture radar imaging called `SweepSAR´. A system-level description of the antenna is provided, along with predictions of antenna performance.
Keywords :
active antenna arrays; aperture antennas; microstrip antenna arrays; radar antennas; reflector antenna feeds; synthetic aperture radar; DESDynl; Earth-orbit remote sensing; NASA; SweepSAR; active switched array; array-fed reflector antenna; lidar instruments; patch antenna; radar imaging; synthetic aperture radar antenna; Antenna arrays; Arrays; Feeds; Radar; Radar antennas; Reflector antennas;
Conference_Titel :
Phased Array Systems and Technology (ARRAY), 2010 IEEE International Symposium on
Conference_Location :
Waltham, MA
Print_ISBN :
978-1-4244-5127-2
Electronic_ISBN :
978-1-4244-5128-9
DOI :
10.1109/ARRAY.2010.5613339
