Electromagnetic modeling of the proposed DESDynI synthetic aperture radar antenna

Author

Chamberlain, Neil ; Vacchione, Joseph

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

fYear

2014

fDate

1-8 March 2014

Firstpage

1

Lastpage

14

Abstract

The proposed DESDynI mission is in pre-formulation by NASA and ISRO for Earth-orbit remote sensing. The mission is envisioned as an interferometric synthetic aperture radar (SAR) operating at L-band and S-band. The proposed instrument features a new mode of radar imaging known as SweepSAR and would be capable of fully polarimetric radar measurements. The radar instrument would be equipped with a large-aperture antenna comprising a deployable reflector antenna and arrays of patch elements. This paper focuses on the electromagnetic modeling of the instrument antenna. Results from two independent electromagnetic modeling programs are described that show good agreement in the accommodated antenna patterns.

Keywords

Earth orbit; antenna radiation patterns; aperture antennas; microstrip antenna arrays; radar antennas; radar imaging; radar interferometry; radar polarimetry; reflector antennas; remote sensing by radar; synthetic aperture radar; DESDynI synthetic aperture radar antenna; Earth orbit remote sensing; ISRO; L-band; NASA; S-band; SweepSAR; antenna radiation pattern; aperture antenna; deformation ecosystem structure and dynamics of ice; deployable reflector antenna; electromagnetic modeling; instrument antenna; interferometric synthetic aperture radar; patch element array; polarimetric radar measurement; radar imaging; radar instrument; Feeds; Finite element analysis; Instruments; L-band; Radar antennas; Reflector antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 2014 IEEE

Conference_Location

Big Sky, MT

Print_ISBN

978-1-4799-5582-4

Type

conf

DOI

10.1109/AERO.2014.6836370

Filename

6836370