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Intrinsic cross-pol...
Intrinsic cross-polarization ratio (IXR) for antenna arrays and improving polarimetry via polarization diversity
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- Carozzi, Tobia, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: Proceedings of the 2015 International Conference on Electromagnetics in Advanced Applications, ICEAA 2015. ; , s. 630-633
- Relaterad länk:
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http://dx.doi.org/10...
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Abstract
Ämnesord
Stäng
- I extend the concept of the intrinsic cross-polarization ratio (IXR) to an array of an arbitrary number of antenna elements. IXR is a figure-of-merit for the polarimetric performance of dual-polarized antenna elements, but it is easily generalized to more than two antennas by considering the effective dual-polarized response of polarimetrically beam-formed array. I also show that for a sparse array (i.e. arrays in which mutual-coupling can be ignored) of identical dual-polarized elements all with the same alignment, it is not possible to make the array IXR better than the IXR of dual-polarized element through beam-forming. However, such arrays can be improved by physically rotating the dual-polarized elements such that their alignments are not all the same. An array in which not all the dual-polarized elements do not all have the same alignment is a form of polarization diversity. I argue that polarization diversity is way to improve the polarimetric performance of arrays.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- Antenna measurements
- Noise
- Polarimetry
- Antenna accessories
- Antenna arrays
- Array signal processing
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)