Synthesis of wideband rotationally symmetric sparse circular arrays with multiple constraints

RQ Wang, YC Jiao - IEEE Antennas and Wireless Propagation …, 2019 - ieeexplore.ieee.org
Wideband rotationally symmetric sparse circular arrays (RSSCAs) with multiple constraints
are synthesized in this letter. First, the circular aperture is partitioned into several rotationally …

Joint sparse concentric array design for frequency and rotationally invariant beampattern

Y Buchris, I Cohen, J Benesty… - IEEE/ACM Transactions …, 2020 - ieeexplore.ieee.org
Frequency-invariant concentric arrays are fundamental components in some real-world
applications, like teleconferencing, voice service devices, underwater acoustics, and others …

Aperiodic array layout optimization by the constraint relaxation approach

TN Kaifas, DG Babas, GS Miaris… - … on Antennas and …, 2011 - ieeexplore.ieee.org
An optimization procedure for the layout assessment of electrically large but finite planar
arrays is presented. The synthesis takes into account the desired directivity pattern that is …

Multibeam antennas for global satellite coverage: Theory and design

TN Kaifas, DG Babas, G Toso… - … Microwaves, Antennas & …, 2016 - Wiley Online Library
Today there is an increasing request for high‐throughput communication payloads in
satellite communications. Capacity in the order of 100 Gbit/s is becoming available and …

Low SLL Control of Two-Way Pattern in Shared Circular Planar Radar Arrays

TNF Kaifas, JN Sahalos - IEEE Transactions on Antennas and …, 2024 - ieeexplore.ieee.org
Low sidelobe level control of the two-way pattern of shared circular planar radar arrays is
presented. The arrays are coming from a sampling of properly designed circular apertures …

A novel approach for design of beam steerable aperiodic planar array antenna with reduced number of elements

P Mevada, S Gupta, S Chakrabarty… - … Waves and Applications, 2022 - Taylor & Francis
This paper introduces the design of an aperiodic beam steerable planar array antenna using
a novel strip-projection (SP) method, offering the reduced array elements with improved …

DRA Overlapping Function Hardware Implementation Via Waveguide Beamformer

TNF Kaifas, D Babas, G Kyriacou… - … on Electronics & …, 2024 - ieeexplore.ieee.org
In the work at hand we present the design procedure of a waveguide beamformer network
that implements the Direct Radiating Arrays' Overlapping Function. Such a design is …

[HTML][HTML] Deterministic Design Procedures on Limited Field-of-View Planar Arrays for Satellite Communications Employing Aperture Scaling

TNF Kaifas - Engineering Proceedings, 2024 - mdpi.com
The antenna field of view, the angle range that can be accessed by scanning the main beam
of a phased array, is one of the key performance prescriptions especially for space-borne …

[HTML][HTML] Performance Aspects of Retrodirective RFID Tags

TNF Kaifas - Engineering Proceedings, 2024 - mdpi.com
Although RFID (radio frequency identification) tags do not require a direct line of sight, their
operational range is often characterized as being limited. Indeed, in the case of passive …

A combined deterministic and stochastic approach for the design of non-uniform arrays

TN Kaifas, DG Babas… - 2013 7th European …, 2013 - ieeexplore.ieee.org
A procedure of non-uniformly spaced array design is presented. The resulting layouts fulfill
demanding beamforming problems with aperture and element size limitations. Our approach …