Factors that Define the Bandwidth of a Phased Array Antenna

Haupt, Randy L.

doi:10.1109/past43306.2019.9020885

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…Electronic scanning RADARs have been the first systems making use large phased arrays, and frequency dispersion effects on pulsed and chirped signals have been thoroughly analyzed and understood for these systems [29]- [32]. Countermeasures to limit the detrimental effect of frequency dispersion have been also readily identified in substituting the phase control elements with true time delay elements [33], [34].…”

Section: B Feasibility Considerationsmentioning

confidence: 99%

Optimizing a Formation-of-Arrays (FoA) Satellite Antenna System for Very High-Throughput Communications

Bacci,

De Gaudenzi,

Luise

et al. 2024

IEEE Trans. Aerosp. Electron. Syst.

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Formation of arrays (FoA) distributed antenna technology has recently been proposed to provide 5G-like mobile satellites services in the context of the integration of non terrestrial with terrestrial networks -the overall system goal being a sufficiently high throughput in terms of bit rate per unit area on the ground. This large distributed array configuration (resulting from the formation of many satellites each carrying its own small antenna) must be carefully engineered to provide the desired benefits. In this paper, we tackle some fundamental issues related to FoA design, namely, frequency selectivity, power generation, and optimal formation configuration. Concerning frequency selectivity, we evaluate the intrinsic FoA frequency response assuming a wideband signal, and suggest how to mitigate possible impairments from a communication system perspective. Regarding power generation, we show how to decouple the functions of antenna and solar arrays to come to a power-efficient satellite configuration and design. Finally, in terms of formation optimization, we investigate a formation thinning approach with random placement of satellites on a grid, leading to a significant reduction of secondary beams in the emission of the FoA as well as fully satisfying the constraints placed by optimum power generation.

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Section: B Feasibility Considerationsmentioning

confidence: 99%

Optimizing a Formation-of-Arrays (FoA) Satellite Antenna System for Very High-Throughput Communications

Bacci,

De Gaudenzi,

Luise

et al. 2024

IEEE Trans. Aerosp. Electron. Syst.

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“…Although these factors have been under continuous investigation for years for various electromagnetic problems, including antennas, it appears that the dependence of RCS reduction bandwidth on array size has not been explored. It has been reported, for phased arrays [135] and reflectarrays [136], that bandwidth depends on the array size. Undertaking studies on this aspect of RCS reduction dependence on the array size could probably lead to bandwidth enhancement.…”

Section: Future Research Directionsmentioning

confidence: 99%

A Review of Metasurface-Assisted RCS Reduction Techniques

Murugesan¹,

Selvan²,

Iyer³

et al. 2021

PIER B

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“…operating bandwidth to less than a few hundred megahertz [9]- [11]. This translates into higher bandwidth, increased speed, and reduced power consumption.…”

Section: Introduction and Contextmentioning

confidence: 99%

Nonintrusive Characterization Method for Integrated Optical Delay Lines

Martínez-Carrasco,

Huy-Ho,

Capmany

2024

J. Lightwave Technol.

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In this work we present an automatic calibration technique for switched Optical True Time Delay Lines which allows the control of all of the switchers without relaying on intermediate attenuators nor external test ports, thus optimizing the number of active elements on chip and the footprint. This technique has been used for the characterization of a delay line fabricated on a silicon photonic chip.The accuracy and reliability of this technique were validated for applications beyond beamforming by utilizing the calibration data to synthesize variable optical interleavers.

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Factors that Define the Bandwidth of a Phased Array Antenna

Cited by 7 publications

References 12 publications

Optimizing a Formation-of-Arrays (FoA) Satellite Antenna System for Very High-Throughput Communications

Optimizing a Formation-of-Arrays (FoA) Satellite Antenna System for Very High-Throughput Communications

A Review of Metasurface-Assisted RCS Reduction Techniques

Nonintrusive Characterization Method for Integrated Optical Delay Lines

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