Time-modulated arrays: A review

DS Varma, G Ram, G Arun Kumar - IETE Technical Review, 2023 - Taylor & Francis
In the modern communication era, antenna arrays play a vital role, demanding more
constrained antenna arrays with high gain, ultra-low sidelobes, and other characteristics …

Impact of time-modulated arrays on the BER of linear digital modulations

R Maneiro-Catoira, J Brégains… - Journal of …, 2015 - Taylor & Francis
Time modulation provides a simple way to control the power radiation pattern of an antenna
array. By appropriately selecting the parameters of a Time-Modulated Array (TMA) it is …

Range-angle-dependent beamforming with FDA using four-dimensional arrays

WT Li, YQ Hei, XW Shi, HC So - Signal Processing, 2018 - Elsevier
By virtue of its low sidelobe and multibeam pattern characteristic, four-dimensional time-
modulated array (TMA) has been attracting considerable attention. Recently, a novel …

Single-sideband time-modulated phased array with 2-bit phased shifters

Y Gao, G Ni, K Wang, Y Liu, C He… - 2020 9th Asia-Pacific …, 2020 - ieeexplore.ieee.org
A novel single-sideband (SSB) time-modulated technique with 2-bit phase shifters is
proposed. The time-modulated module is implemented by adding periodic phase …

Enhanced single-sideband time-modulated phased array with lower sideband level and loss

Q Chen, JD Zhang, W Wu… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This article presents an enhanced single-sideband time-modulated phased array (ESTMPA)
using modulating pulses with stepped waveforms. Based on the in-phase/quadrature (I/Q) …

Combining switched TMAs and FDAs to synthesize dot-shaped beampatterns

R Maneiro-Catoira, J Brégains… - IEEE Antennas and …, 2021 - ieeexplore.ieee.org
The application of frequency offsets to the elements of a conventional phased array with
variable phase shifters (VPSs) leads to frequency diverse arrays (FDAs) with the ability to …

A Generalized Array Factor for Time-Modulated Hexagonal Based Antenna Array Geometry with Novel Trapezoidal Switching

G Ram - IEEE/CAA Journal of Automatica Sinica, 2024 - ieeexplore.ieee.org
The concept of the time-modulated array has been emerging as an alternative to the
complex phase shifters, which lowers the cost of the array feeding network due to the …

Beamforming optimization for time-modulated circular-aperture grid array with DE algorithm

ZJ Jiang, S Zhao, Y Chen, TJ Cui - IEEE Antennas and …, 2018 - ieeexplore.ieee.org
This letter put forward a method of numerical optimization for the circular-aperture time-
modulated grid array. The amplitude weight and the time modulation pulsewidth are …

Power pattern synthesis of a moving phase center time modulated antenna array using symmetrically and asymmetrically positioned time schemes

A Chakraborty, G Ram, D Mandal - International Journal of RF …, 2022 - Wiley Online Library
The advantages of exploiting the harmonic patterns in a time‐modulated linear array (TMLA)
is presented in this paper through mathematical validation and also applied for real‐world …

Adaptive nulling in time-varying scenarios through time-modulated linear arrays

P Rocca, L Poli, G Oliveri… - IEEE Antennas and …, 2012 - ieeexplore.ieee.org
Unlike classical phased arrays, a key feature of time-modulated arrays (TMAs) is the ability
to easily reconfigure the radiation pattern just modifying the pulse sequence that modulates …