Results 11 to 20 of about 10,565,311 (162)

A Design Approach of Optical Phased Array with Low Side Lobe Level and Wide Angle Steering Range

open access: yesPhotonics, 2021
In this paper, a new design approach of optical phased array (OPA) with low side lobe level (SLL) and wide angle steering range is proposed. This approach consists of two steps.
Xinyu He, Tao Dong, Jingwen He, Yue Xu
doaj   +2 more sources

Side-lobe Level Reduction of an Optical Phased Array Using Amplitude and Phase Modulation of Array Elements Based on Optically Injection-Locked Semiconductor Lasers

open access: yesPhotonics, 2020
The side-lobe level (SLL) in optical phased array (OPA) systems should be reduced to ensure their high performance. We investigate theoretically the performance of an OPA based on optically injection-locked (OIL) semiconductor lasers.
Anh Hang Nguyen   +3 more
doaj   +2 more sources

Side lobe reduction of a concentric circular antenna array using genetic algorithm [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2010
A concentric circular antenna array (CCAA) consists of elements positioned on the periphery of imaginary circles on a plane having a common centre and different radii.
Mandal Durbadal   +3 more
doaj   +3 more sources

Analysis and Design of Leaky-Wave Antenna with Low SLL Based on Half-Mode SIW Structure [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2015
This paper presents a novel leaky-wave antenna based on the Half-Mode Substrate Integrated Waveguide (HMSIW) structure with low side lobe level. The effect of the structural parameters of the LWAs on the radiation performances is studied.
Jiaying Guo   +4 more
doaj   +2 more sources

A Modified Unequally Spaced Array Antenna Synthesis Method for Side Lobe Reduction [PDF]

open access: yesRadioengineering, 2017
The aim of this paper is to demonstrate the application of Unequally Spaced Arrays (USAs) in decreasing side lobe level (SLL) in linear arrays. As well known, solving of a nonlinear equation is needed in USA antenna pattern synthesis.
S. Veisee, Sh. Asadi
doaj   +2 more sources

Analysis of Linear Antenna Array for minimum Side Lobe Level, Half Power Beamwidth, and Nulls control using PSO

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents the optimization performance of non-uniform linear antenna array with optimized inter-element spacing and excitation amplitude using Particle Swarm Optimization (PSO).
Saeed Ur Rahman   +3 more
doaj   +2 more sources

3-Faceted Array With Low Side Lobe Levels Using Tunable Windows [PDF]

open access: yes, 2013
In this paper, a 3-faceted phased array antenna synthesised for low side lobe levels using a tuneable window is presented. The array consists of eight left hand circularly polarised antennas.
Arslan, Tughrul   +2 more
core   +2 more sources

A Sparse Shared Aperture Design for Simultaneous Transmit and Receive Arrays with Beam Constraints

open access: yesSensors, 2023
The utilization of efficient digital self-interference cancellation technology enables the simultaneous transmit and receive (STAR) phased array system to meet most application requirements through STAR capabilities.
Dujuan Hu   +3 more
doaj   +1 more source

Side-lobe level reduction in bio-inspired optical phased-array antennas [PDF]

open access: yes, 2020
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQPhased arrays are expected to play a critical role in ...
Gabrielli, Lucas H.   +5 more
core   +2 more sources

A W‐band dual‐beam low side‐lobe level antenna with shared slotted waveguide arrays

open access: yesIET Microwaves, Antennas & Propagation, 2023
A W‐band dual‐beam low side‐lobe level antenna with a shared slotted waveguide radiating layer was designed by the authors. The proposed antenna consists of a symmetrical dual ports feed network layer located on two sides of the antenna, a novel shared ...
Jie Wang   +3 more
doaj   +1 more source

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