Title :
Truss-type deployable reflector antenna systems for synthetic aperture radar mounted on a small spacecraft
Author :
Chebotarev, A.S. ; Panteleev, V.A. ; Feyzulla, N.M. ; Mitrofanov, E.M. ; Plastikov, Andrey N.
Author_Institution :
JSC “Special Res. Bur. of Moscow Power Eng. Inst.” (JSC “OKB MEI”), Moscow, Russia
Abstract :
The paper describes the principles of constructing antennas for the Earth remote sensing synthetic aperture radar (SAR) systems mounted on the small spacecrafts and based on the truss-type deployable reflector antennas developed by JSC “OKB MEI”. The basis of reflectors is a rigid truss framework. Metallic mesh grid playing the role of reflecting surface is attached to this framework. The possibility of providing electronic beam scanning with a small step for ScanSAR mode is realized by the usage of complex feed, consisting of an array of antennas, microwave switches and power divider. Two S-band SAR deployable reflector systems designed for Russian and Chinese small spacecrafts are presented.
Keywords :
antenna arrays; microwave switches; power dividers; reflector antennas; space vehicles; synthetic aperture radar; S-band SAR deployable reflector systems; SAR systems; ScanSAR mode; electronic beam scanning; metallic mesh grid; microwave switches; power divider; rigid truss framework; small spacecraft; synthetic aperture radar; truss-type deployable reflector antenna systems; Feeds; Principal component analysis; Space vehicles;
Conference_Titel :
Microwave & Telecommunication Technology (CriMiCo), 2014 24th International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-966-335-412-5
DOI :
10.1109/CRMICO.2014.6959508