Beamspace-domain analysis of single-RF front-end MIMO systems

VI Barousis, AG Kanatas, A Kalis - IEEE Transactions on …, 2011‏ - ieeexplore.ieee.org
It is known that the remarkable implementation complexity of multiple-input-multiple-output
(MIMO) architectures limits their wide application to modern communication systems. To …

Analog beamforming using espar for single-rf precoding systems

C Zhang, S Shen, Z Han… - IEEE Transactions on …, 2022‏ - ieeexplore.ieee.org
A novel analog beamforming technique that utilizes single radio frequency (single-RF)
electronically steerable parasitic array radiator (ESPAR) antennas is proposed. The ESPAR …

A study on MVDR beamforming applied to an ESPAR antenna

R Qian, M Sellathurai, D Wilcox - IEEE Signal Processing …, 2014‏ - ieeexplore.ieee.org
The adaptive beamforming algorithm-minimum variance distortionless response (MVDR)
has been studied based on the electronically steerable parasitic array radiator (ESPAR) …

Evaluation and optimization of the specific absorption rate for multiantenna systems

M Wang, L Lin, J Chen, D Jackson… - IEEE transactions on …, 2011‏ - ieeexplore.ieee.org
This paper proposes an effective and efficient technique for the evaluation and optimization
of the specific absorption rate for multiantenna wireless systems. This technique is based on …

Arbitrary precoding with single-fed parasitic arrays: Closed-form expressions and design guidelines

VI Barousis, CB Papadias - IEEE Wireless Communications …, 2014‏ - ieeexplore.ieee.org
Single-fed compact arrays known as electronically steerable parasitic antenna radiators
(ESPARs) have recently emerged as a new paradigm for spatial multiplexing that requires …

Reconfigurable orthonormal basis patterns using ESPAR antennas

PN Vasileiou, K Maliatsos… - IEEE Antennas and …, 2013‏ - ieeexplore.ieee.org
Beamspace multiple-input-multiple-output (BS-MIMO) systems with reduced hardware
complexity have been recently considered in the literature. So far, BS-MIMO research effort …

Aerial degrees of freedom of parasitic arrays for single RF front-end MIMO transceivers

V Barousis, AG Kanatas - Progress In Electromagnetics Research B, 2011‏ - jpier.org
The beamspace domain of parasitic antenna arrays is explored in this paper, providing the
aerial degrees of freedom available for use in Multiple Input-Multiple Output (MIMO) …

Spatial multiplexing of OFDM signals with QPSK modulation over ESPAR

J Lee, JY Lee, YH Lee - IEEE Transactions on Vehicular …, 2016‏ - ieeexplore.ieee.org
An electronically steerable parasitic array radiator (ESPAR) transmitter, employing one
active and one parasitic antenna element, which can simultaneously transmit two orthogonal …

Beam steering patch antennas using reconfigurable parasitic elements of tunable electrical size

TG Huang, KR **ang, FC Chen… - International Journal of RF …, 2022‏ - Wiley Online Library
A method of designing beam steering microstrip antennas using reconfigurable parasitic
patches is proposed in this article. The first beam steering antenna is composed of a driven …

[HTML][HTML] Energy Efficient Multi-Active/Multi-Passive Antenna Arrays for Portable Access Points

MH Tariq, S Zhang, C Masouros… - Micromachines, 2024‏ - pmc.ncbi.nlm.nih.gov
This article is about better wireless network connectivity. The main goal is to provide
wireless service to several use cases and scenarios that may not be adequately covered …