Linearly-arranged Concentric Circular Antenna Array Beamformer Using Tapering Technique

Rahaman, Imteaz; Hossain, Md. Selim; Reza, Md. Farhamdur; Sarkar, Pallab Kumar

doi:10.1109/icaee48663.2019.8975449

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Besides, LCCAA based ODL technique is an automatic system that relies on steering vector distortion bound. The array correlation matrix can be written using the ODL technique as equation ( 9) [10].…”

Section: ) Robust Beamforming With Odl Techniquementioning

confidence: 99%

“…Cat swarm optimization (CSO) algorithm is applied in the 9ring time modulated concentric circular antenna array (TMC-CAA) which claims that the increment of sideband frequency causes the decrease of the powers radiated by harmonic frequencies and SLL [9]. Besides, tapering techniques are applied to reduce SLL in the LCCAA beamformer where the hamming window shows the best result, though the performance under SINR to SNR is completely ignored [10]. Also, how to design multi-ring concentric circular array (CCA) and concentric hexagonal array (CHA) using particle swarm optimization (PSO) technique is briefly presented [11].…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Linearly arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique.

Rahaman

Reza

Hossain

et al. 2021

Preprint

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In this research, a novel antenna array named Linearly arranged Concentric Circular Antenna Array (LCCAA) is proposed concerning lower beamwidth, lower sidelobe level, sharp ability to detect the false signal, and impressive SINR performance. The performance of the proposed LCCAA beamformer is compared with geometrically identical existing beamformers using the conventional technique where the LCCAA beamformer shows the lowest beamwidth and sidelobe level(SLL) of 12.50°and -15.17 dB in equal element accordingly. However, the performance gets degraded due to looking direction error, and robust techniques- fixed diagonal loading (FDL), optimal diagonal loading (ODL), and variable diagonal loading (VDL) are applied to all the potential arrays to minimize this problem. Furthermore, the LCCAA beamformer is further simulated to reduce the sidelobe applying tapering techniques where the hamming window shows the best performance having 17.097 dB less sidelobe level compared to the uniform window. The proposed structure is also analyzed under a robust tapered (VDL-hamming) method which reduces around 69.92 dB and 48.39 dB more sidelobe level compared to conventional and robust techniques. Analyzing all the performances, it is clear that the proposed LCCAA beamformer is superior and provides the best performance with the proposed robust tapered (VDL-hamming) technique.

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Section: ) Robust Beamforming With Odl Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Linearly arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique.

Rahaman

Reza

Hossain

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Performane Analysis of Linearly-arranged Concentric Circular Antenna Array Using Robust ODL technique

Rahaman

Hossain

Reza

et al. 2020

2020 IEEE Region 10 Symposium (TENSYMP)

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Performance Investigation of Linearly Arranged Circular, Circular Planer, Rectangular, and Concentric Circular Antenna Arrays Using Robust NVL Techniques

et al. 2022

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In this research, linearly arranged circular antenna array (LCAA), linearly arranged circular planer antenna array (LCPAA), linearly arranged rectangular antenna array (LRAA), and linearly arranged concentric circular antenna array (LCCAA) are analyzed using robust techniques. These four antenna arrays are briefly investigated to evaluate their beam width performance, ability to detect a false signal, and SINR power pattern performances. Robust techniques—fixed diagonal loading (FDL), optimal diagonal loading (ODL), variable diagonal loading (VDL), and new variable loading (NVL) techniques—are applied, and the NVL technique is found to be superior and provides the best performance with the proposed LCCAA beamformer. With an SINR of 40.45 dB, 40.29 dB, 40.18 dB, and 39.99 dB for 0°, 1°, 2°, and 3° disparity angles, respectively, and output powers of −0.019 dB, −0.076 dB, and −0.171 dB for 1°, 2°, and 3° disparity angles, respectively, LCCAA beamformers using the NVL technique outperform other beamformers with different robust approaches.

show abstract

Linearly-arranged Concentric Circular Antenna Array Beamformer Using Tapering Technique

Cited by 4 publications

References 9 publications

Performance Analysis of Linearly arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique.

Performance Analysis of Linearly arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique.

Performane Analysis of Linearly-arranged Concentric Circular Antenna Array Using Robust ODL technique

Performance Investigation of Linearly Arranged Circular, Circular Planer, Rectangular, and Concentric Circular Antenna Arrays Using Robust NVL Techniques

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