Performance Evaluation of Various Beamforming Techniques for Phased Array Antennas

Rohit, Hajare; Sachin, B S; Aditya, P; Tripathi, Bhishm; Premananda, B. S.

doi:10.1109/icccnt49239.2020.9225569

Cited by 4 publications

(1 citation statement)

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“…In advanced phased array antennas, to acquire far field directional radiation pattern or a shaped beam patterns, the beamforming networks [61] provides excitation vectors in terms of amplitude and phase. There are different beamforming networks exist to generate multiple beams [62] to scan over broad area or to increase the field of view. To get the desired beamforming in the RF chain without any active component, passive multi beam phased array antenna plays an active role.…”

Section: Beamformer Networkmentioning

confidence: 99%

Review on Ultra-Wideband Phased Array Antennas

Latha

Ram²,

Kumar

et al. 2021

IEEE Access

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Ultra-wideband (UWB) phased array antennas are more essential for radar, communication and EW applications. Systems can operate over wide band coverage. The high gain systems require wideband, wide angle scanning, good radiation pattern and returnloss over multioctave bandwidth. This review discusses the problems present in this system, which include mutual coupling, grating lobe rejection, active return loss, gain fluctuation with scanning, and multiple beam generation. In this, the aperture size of the array is limited by the overall gain requirement of the system. On the other hand low gain systems require wideband with good radiation pattern and axial ratio. Here the matching over wideband is simpler as it depends on broadband balun configuration. This system has limited bandwidth over scan angles. These antennas more preferred as wearable antennas in communication applications. This paper mainly discusses the existing UWB phased array antennas such as Vivaldi Arrays, All-Metal Arrays, Spiral Arrays, Sinuous Arrays, and Coupled Arrays. This review paper presents a correct direction for selecting the type of antenna in terms of impedance bandwidth, gain, and materials influencing antenna performance, suited for different applications.

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Section: Beamformer Networkmentioning

confidence: 99%