Design of a dual‐polarized reflect‐transmit‐array
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32109
Abstract: A new low‐profile, dual‐polarized reflect‐transmit‐array antenna which combines the linearly polarized reflectarray (RA) and circularly polarized transmitarray (TA) with a shared aperture is proposed. The antenna adopts a three‐parallel dipole and a two‐surface dipole connected… read more here.
Keywords: array; reflect transmit; transmit array; polarized reflect ... See more keywords
Mitigating transmit-B1 artifacts by predicting parallel transmission images with deep learning: A feasibility study using high-resolution whole-brain diffusion at 7 Tesla.
Sign Up to like & getrecommendations! Published in 2022 at "Magnetic resonance in medicine"
DOI: 10.1002/mrm.29238
Abstract: PURPOSE To propose a novel deep learning (DL) approach to transmit-B1 (B1 + )-artifact mitigation without direct use of parallel transmission (pTx), by predicting pTx images from single-channel transmission (sTx) images. METHODS A deep encoder-decoder… read more here.
Keywords: parallel transmission; feasibility; diffusion; transmit ... See more keywords
Numerical comparison of local transceiver arrays of fractionated dipoles and microstrip antennas for body imaging at 7 T
Sign Up to like & getrecommendations! Published in 2022 at "NMR in Biomedicine"
DOI: 10.1002/nbm.4722
Abstract: Longitudinally orientated dipoles and microstrip antennas have both demonstrated superior results as RF transmit elements for body imaging at 7 T MRI, and are as of today the most commonly used transmit elements. In this study,… read more here.
Keywords: microstrip antennas; transmit; body imaging; dipoles microstrip ... See more keywords
A novel antisymmetric 16‐element transceiver dipole antenna array for parallel transmit cardiac MRI in pigs at 7 T
Sign Up to like & getrecommendations! Published in 2022 at "NMR in Biomedicine"
DOI: 10.1002/nbm.4726
Abstract: To improve parallel transmit (pTx) and receive performance for cardiac MRI (cMRI) in pigs at 7 T, a dedicated transmit/receive (Tx/Rx), 16‐element antisymmetric dipole antenna array, which combines L‐shaped and straight dipoles, was designed, implemented, and… read more here.
Keywords: dipole antenna; transmit; mri; array ... See more keywords
OTUP workflow: target specific optimization of the transmit k‐space trajectory for flexible universal parallel transmit RF pulse design
Sign Up to like & getrecommendations! Published in 2022 at "NMR in Biomedicine"
DOI: 10.1002/nbm.4728
Abstract: To optimize transmit k‐space trajectories for a wide range of excitation targets and to design “universal pTx RF pulses” based on these trajectories. read more here.
Keywords: otup workflow; transmit; transmit space; target specific ... See more keywords
Secrecy Throughput Optimization for the WPCNs With Non-Linear EH Model
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2915659
Abstract: This paper investigates secure communication from a wireless-powered transmitter to a desired receiver with multiple eavesdroppers in the wireless powered communication networks (WPCNs). Considering the non-linear energy harvesting (EH) model, we propose a secure two-phase… read more here.
Keywords: non linear; secrecy throughput; throughput; pdm ... See more keywords
Transmit Beamspace Design for Bistatic MIMO Radar With Improved Angle Estimation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2932997
Abstract: The energy dispersion of traditional bistatic multiple-input multiple-output (MIMO) radar severely degrades the angle estimation performance. To overcome this limitation, we propose to design the transmit beamspace matrix and apply the design result to jointly… read more here.
Keywords: transmit beamspace; mimo radar; angle estimation; transmit ... See more keywords
On the Design of RD-MIMO: Spatial Multiplexing Versus Opportunistic Transmission Schemes
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2970049
Abstract: In this work, we focus on the implementation of reconfigurable distributed multiple-input multiple-output (RD-MIMO) schemes in practical communication environment. Considering RD-MIMO schemes, we raise an original research question, i.e., under what scenario whether we should… read more here.
Keywords: mimo; mimo schemes; spatial multiplexing; mimo scheme ... See more keywords
A Scalable Ka-Band 1024-Element Transmit Dual-Circularly-Polarized Planar Phased Array for SATCOM Application
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2020.3019174
Abstract: This paper presents a scalable 1024-element transmit dual-circularly-polarized phased array for Ka-band satellite communication (SATCOM) terminal applications. The transmit array based on the CMOS beamformer and a multilayer printed circuit board (PCB) can steer up… read more here.
Keywords: phased array; element transmit; transmit dual; transmit ... See more keywords
Energy Harvesting Powered Sensing in IoT: Timeliness Versus Distortion
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2020.2990715
Abstract: We consider an Internet of Things (IoT)-based sensing system, in which an energy harvesting powered sensor observes the phenomenon of interest and transmits its observations to a remote monitor through a Gaussian channel. Based on… read more here.
Keywords: distortion; power; transmit; harvesting powered ... See more keywords
Active Feed Tuning for Excitation Symmetry in Simultaneous Transmit and Receive Antennas
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2020.3033489
Abstract: We present an actively tuned balun to enable simultaneous transmit and receive (STAR) antennas to achieve greater isolation. Specifically, for the first time, we propose placing a chip into the antenna feed to control the… read more here.
Keywords: simultaneous transmit; transmit receive; feed; transmit ... See more keywords