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Future weather radar systems will need to provide rapid updates within a flexible multifunctional overall radar network. This naturally leads to the use of electronically scanned phased array antennas. However, the traditional multifaced planar antenna approaches suffer from having radiation patterns that are variant in both beam shape and polarization as a function of electronic scan angle; even...
This paper summarizes the challenges in achieving (and even specifying) the antenna polarization accuracy requirements for the Multifunction Phased Array Radar (MPAR) and the progress that has been made towards meeting these requirements through demonstrations and theoretical investigations.
An antenna suitable for use in emerging multifunctional phased array weather radar applications is presented. The S-band (3–3.6 GHz), differentially probe-fed, stacked patch antenna features high port-to-port isolation (> 40 dB) and correspondingly good cross-polarization characteristics in addition to high efficiency and good port-to-port matching. The intended application places strict limits...
Demand for improvements in the performance and capabilities of new polarimetric radar systems beyond those of their predominantly mechanically-rotated predecessors has led to an effort to realize large, dual-polarized phased array an-tennas. These arrays have changing polarization characteristics with scan angle, requiring calibration and compensation. This paper provides a qualitative discussion...
The Student Led Test Bed (STB) is part of the NSF Engineering Research Center CASA and is currently focused in developing low-cost and low infrastructure radar networks to fill lower atmosphere gaps not covered by current technology. The first radar node, which is part of a small region radar network, will significantly improve the time and spatial resolution of the radar data measured for the lower...
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