A pod with a very long broadband time steered array antenna for PAMIR
Conference: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
06/02/2008 - 06/05/2008 at Friedrichshafen, Germany
Proceedings: EUSAR 2008
Pages: 4Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Wilden, H.; Saalmann, O.; Schmidt, A.; Peters, O.; Brenner, A. (FGAN-FHR, Neuenahrer Str. 20, D 53343 Wachtberg, Germany)
A reconfigurable pod-mounted antenna frontend configuration for the PAMIR SAR/GMTI imaging radar, an experimental active phased array system with a very high instantaneous bandwidth of 1.82 GHz in X-band is described. The pod accommodates a linear time and phase steered array antenna with a length of 4.25 m. Broadband beamforming together with wide azimuth scan capabilities (=± email@example.com GHz bandwidth) requires a switchable true time delay network with time increments equivalent to a fraction of a wavelength. The subarray structure including the time delay components and the total array performance are described. PAMIR serves as an ideal airborne platform for future broadband SAR/GMTI research activities including interferometric image formation.