Results 241 to 250 of about 10,662,693 (288)

Side lobe level reduction for beam steerable antenna design

2016 10th European Conference on Antennas and Propagation (EuCAP), 2016
This paper presents a novel antenna which represents an alternative to conventional phased array antennas. The novel antenna offers three important advantages in comparison with a conventional phased array antenna. These advantages are as follows: i) it is able to steer the beam to relatively wide angles (±31°), ii) it maintains low side-lobe level of <
Marion Allayioti, James R. Kelly
openaire   +1 more source

Non-equidistant antenna array with low level of side lobes

2016 IEEE Sixth International Conference on Communications and Electronics (ICCE), 2016
Methods of constructing antenna arrays having a narrow beam width while providing a low level of side lobes are analyzed in the article. The patterns and the geometric dimensions of the antenna arrays based on patch antennas as radiating elements are presented.
S. N. Shabunin, V. A. Chechetkin, D. S. Klygach, A. V. Ershov, M. G. Vakhitov, V. A. Dumchev, I. A. Dumchev   +6 more
openaire   +1 more source

Minimization of Side Lobe Level

2007 17th International Crimean Conference - Microwave & Telecommunication Technology, 2007
Considered in this paper are the methods for side lobe level minimization in phased array antennas. Patterns and mono-pulse characteristics are shown.
openaire   +1 more source

Narrowband and Wideband Directional Beamformer with Reduced Side Lobe Level

2019 International Conference on Data Science and Communication (IconDSC), 2019
In this paper, the synthesis of narrow and wideband beamformers with reduced side lobe level and wide beam steering capability is presented. A closed form expression with slope equalization technique is derived for array factor of the beamformer to meet the desired beam-pattern specifications of Half Power Beam-Width (HPBW)and Side Lobe Level (SLL ...
Joseph Rodrigues, Linu Lonappan, Devika Menon, Lucy J. Gudino   +3 more
openaire   +1 more source

A New BiRNN-SVA Method for Side Lobe Suppression

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The spatially variant apodization (SVA) algorithm, a classic super-resolution method for synthetic aperture radar (SAR) images, can suppress side lobes while maintain the resolution of the main lobe.
Yan Jia, Yongqing Liu, shuyi Liu
exaly   +2 more sources

Side-lobe level reduction in 1D photonic array antennas

2018 SBFoton International Optics and Photonics Conference (SBFoton IOPC), 2018
Photonic array antennas have been proposed to improve radiation features and to enable dynamic beam steering and beam forming. In CMOS-compatible photonic array antennas, fabrication constraints, however, limit the minimum separation distance between radiation elements to several wavelengths, which results in the presence of strong side-lobes known as ...
Bruna Dias Pires de Souza, Antonio Elcio Ferreira Junior, Marcelo Luis Francisco Abbade, Ivan Aldaya   +3 more
openaire   +1 more source

Upper Bound on Side Lobe Levels for mMIMO Antennas to Evaluate the Beam Steering Capability

IEEE Communications Letters, 2021
A promising concept to meet the growing requirements of future wireless systems is the use of massive multiple-input-multiple-output (mMIMO) systems. Specifically, in an attempt to mitigate the high cost due to the complexity of these systems, sub-array based antenna architectures are highly anticipated, where not every antenna element is independently
Daniel Swist, Atul Kumar 0005, Gerhard P. Fettweis   +2 more
openaire   +2 more sources

Nonuniform dual band array with optimum side-lobe levels

Microwave and Optical Technology Letters, 2006
A linear symmetric stub-loaded dual-band rectangular microstrip antenna array (RMSA array) with nonuniform interelement spacing has been proposed for reduced side-lobe levels at both resonant frequencies. The interelement spacing has been optimized using a gradient search algorithm.
DANIEL, AE, SHEVGOANKAR, RK
openaire   +2 more sources

Beam steering of a large phased-array antenna with fixed major-lobe beamwidth and side-lobe levels

2013 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2013
In this work, a large 76,000-element phased-array antenna is optimized in terms of its beam-steering capability. A tapering technique is proposed to maintain a constant beamwidth of the major-lobe when it is steered away from the broadside direction.
Song-Han Yang, Jean-Fu Kiang
openaire   +1 more source

Side lobe level reduction of pyramidal double ridged horn antenna

2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 2017
Ridged horn antennas are widely used for broadband applications. Horn antennas, ridged or non-ridged, suffer from side lobes. In this paper, a double ridged horn antenna will be presented, with a unique ridge shape. A configuration has been found for high gain and low side lobe level at the H-plane, and at the E-plane in contrary to what is found in ...
S. Shechter, Y. Orbach, H. Matzner
openaire   +1 more source