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Dual‐polarized shaped‐beam printed antenna for airborne SAR applications
Author(s) -
Sharma S. B.,
Kulshrestha Sanjeev,
Jyoti Rajeev,
Sriharsha C.,
Pandey B. K.
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20642
Subject(s) - optics , return loss , antenna aperture , microwave , dual polarization interferometry , synthetic aperture radar , radiation pattern , planar , antenna (radio) , engineering , physics , electrical engineering , telecommunications , computer science , remote sensing , geology , computer graphics (images)
This paper presents the design and development of a dual‐polarized shaped‐beam antenna for airborne synthetic aperture radar (SAR). A multilayer, stacked, printed antenna with electromagnetic coupling is chosen as the radiating element due to wide bandwidth and low cross polarization. Shaping in elevation plane is achieved by employing the null‐perturbation technique in order to obtain complex excitation distribution. Many sets of coefficients giving the same power patterns were obtained and the set with the minimum current taper ratio was selected for realization of the antenna. A planar array of 8 × 8 elements is designed and developed at the C band. The measured and simulated radiation patterns and return‐loss performance are also presented. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 383–385, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20642