Cylindrical Polarimetric Phased Array Radar: Hardware design and mobile demonstrator

Kelley, Redmond; Meier, John; Karimkashi, Shaya; McCord, Matt; Meier, Isaac; Zhang, Guifu; Palmer, Robert D.; Zahrai, Allen; Schmidt, Damon; Doviak, Richard J.; Zrnić, Dúsan S.

doi:10.1109/radar.2014.7060296

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…The angular measurement errors of differential reflectivity on the order of 0.1 dB were expected for polarimetric weather radar missions. This is a substantial challenge to achieve for planar arrays due to azimuth scan losses and the significant polarization bias that occurs when the main lobe is steered away from the principal planes [34]. The sidelobe level in the cylindrical array is investigated and controlled by selecting the appropriate angular variation of the noise amplitude [35].…”

Section: Sensing Technology Principle Of Operation Disadvantages Adva...mentioning

confidence: 99%

Multibeam Cylindrical Conformal Array in the Presence of Enhanced Mutual Coupling

Lv,

Zhang,

Shi

et al. 2024

Electronics

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The limitations of conventional sensors have made array antennas increasingly crucial for gathering information and communication applications in intelligent transportation and communication systems. Compact cylindrical arrays are particularly favored for their ability to achieve azimuth angle scanning. However, the substantial mutual coupling effect between the elements on curved surfaces and its implication for these arrays remain unclear, which is a key factor to consider when such arrays are used for multibeam applications. This study investigates the effect of mutual coupling in a dual-slant-polarized cylindrical array. The results showed that mutual coupling is predominantly observed among the closely located elements, and it is essential for achieving an ultra-wide bandwidth. The study also analyzes the impact of mutual coupling on the scan impedance and radiation characteristics for multibeam applications and reveals that these arrays exhibit robust multibeam capability, hence having great potential for use in sensing and communication applications.

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Section: Sensing Technology Principle Of Operation Disadvantages Adva...mentioning

confidence: 99%

Multibeam Cylindrical Conformal Array in the Presence of Enhanced Mutual Coupling

Lv,

Zhang,

Shi

et al. 2024

Electronics

View full text Add to dashboard Cite

show abstract

“…The angular measurement errors of differential reflectivity on the order of 0.1 dB were expected for polarimetric weather radar missions. This is a substantial challenge to achieve for planar arrays due to azimuth scan losses and the large polarization bias that occurs when the main lobe is steered away from the principal planes [23]. The arrays on a cylinder can be analyzed by employing Bessel functions to obtain solutions for active element patterns and mutual coupling relationship between elements which is typically represented by an impedance matrix [24].…”

Section: Sensing Technology Principle Of Operation Disadvantages Adva...mentioning

confidence: 99%

Multibeam Cylindrical Conformal Array in the Presence of Enhanced Mutual Coupling

Lv,

Zhang,

Shi

et al. 2023

Preprint

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The limitations of conventional sensors have made phased array antennas increasingly crucial for gathering information and communication applications in intelligent transportation systems. Compact cylindrical arrays, in particular, are favored for their ability to achieve azimuth angle scan. However, the substantial mutual coupling effect between elements on curved surfaces and its implication in these arrays remains unclear, which is a crucial factor to consider when such arrays are used for multibeam applications. This study investigated the effect of mutual coupling in a dual-slant-polarized cylindrical array. The results showed that mutual coupling is essential for achieving an ultra-wide bandwidth. Mutual coupling is predominantly observed among elements that are closely positioned. The study also analyzes the impact of mutual coupling on scan impedance and radiation characteristics for multibeam applications and reveals that these arrays exhibit robust multibeam capability, hence having great potential for use in intelligent transportation systems.

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Weather measurements with multi-mission phased array radar challenges to meet requirements

Zrnić¹

2015

2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)

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This paper identifies the most challenging re quirements for weather observations that a future Polarimetric Phased Array Radar (PPAR) should meet. These are routed in the current capabilities of the US national network of Doppler Weather Radars (WSR-88D). Biases in polarimetric variables are related to the PPAR designs and polarimetric mode of operations. A planar-array PPAR being used for resolving some technical challenges is described.

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Cylindrical Polarimetric Phased Array Radar: Hardware design and mobile demonstrator

Cited by 5 publications

References 5 publications

Multibeam Cylindrical Conformal Array in the Presence of Enhanced Mutual Coupling

Multibeam Cylindrical Conformal Array in the Presence of Enhanced Mutual Coupling

Multibeam Cylindrical Conformal Array in the Presence of Enhanced Mutual Coupling

Weather measurements with multi-mission phased array radar challenges to meet requirements

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