Multi‐ and dual‐tuned microstripline‐based transmit/receive switch for 7‐Tesla magnetic resonance imaging
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Imaging Systems and Technology"
DOI: 10.1002/ima.22634
Abstract: This article introduces two new designs of transmit/receive switches for 7‐Tesla magnetic resonance imaging. Both designs based on a microstripline coupler technology. In the first design, a different single frequency signals can be handled to/from… read more here.
Keywords: dual resonant; switch; magnetic resonance; transmit receive ... See more keywords
A 0.35‐2 GHz GaAs Multifunctional Chip With Bidirectional True Time Delay
Sign Up to like & getrecommendations! Published in 2025 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.70474
Abstract: This paper presents a 0.35–2 GHz bidirectional true time delay (TTD) transmit/receive (T/R) multifunctional chip utilizing a 0.25‐μm GaAs enhancement/depletion (E/d‐mode) pseudomorphic high electron mobility transistor (pHEMT) process. The chip integrates several key components: a 6‐bit… read more here.
Keywords: bidirectional true; transmit receive; time delay; chip ... See more keywords
A transmit–receive array for brain imaging with a high‐performance gradient insert
Sign Up to like & getrecommendations! Published in 2020 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.28261
Abstract: The aim of this work was to provide parallel imaging capability for the human head in a gradient insert of 33‐cm inner diameter within the related constraints of space, encoding ambiguity, and eddy current immunity. read more here.
Keywords: transmit receive; gradient insert; receive array; brain imaging ... See more keywords
Indirect 1H–[13C] MRS of the human brain at 7 T using a 13C‐birdcage coil and eight transmit–receive 1H‐dipole antennas with a 32‐channel 1H‐receive array
Sign Up to like & getrecommendations! Published in 2024 at "NMR in Biomedicine"
DOI: 10.1002/nbm.5195
Abstract: The neuronal tricarboxylic acid and glutamate/glutamine (Glu/Gln) cycles play important roles in brain function. These processes can be measured in vivo using dynamic 1H–[13C] MRS during administration of 13C‐labeled glucose. Proton‐observed carbon‐edited (POCE) MRS enhances… read more here.
Keywords: gln; steam; brain; 13c mrs ... See more keywords
Customized Radiofrequency Phased-Array Coil Combining Transmit-Only, Receive-Only, and Transmit/Receive Coils for Magnetic Resonance Imaging of Visual Cortex at 7 Tesla
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3167422
Abstract: Magnetic resonance imaging (MRI) using an ultra-high magnetic field (7 Tesla) enables detailed and non-invasive studies of the function and anatomy of the human visual cortex, which is the brain region responsible for visual signal… read more here.
Keywords: magnetic resonance; visual cortex; transmit receive; coil ... See more keywords
Fourier-Optics Based Opto-Electronic Architectures for Simultaneous Multi-Band, Multi-Beam, and Wideband Transmit and Receive Phased Arrays
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3244063
Abstract: Current trends in wireless communications require a Base Transceiver Station (BTS) to support an ever-increasing number of antennas, wider bandwidths, multiple frequency bands, and many simultaneous beams. This is a tall order when considering all-electronic… read more here.
Keywords: beam; optics; multi beam; transmit receive ... See more keywords
Ultra-Wide Band On-Chip Circulator with Sequentially Switched Delay Lines (SSDL)
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3268060
Abstract: Author(s): Biedka, Mathew Michael | Advisor(s): Wang, Yuanxun | Abstract: As more and more people and devices become connected across the globe, the strain on the RF spectrum that they use to communicate increases. Current… read more here.
Keywords: ssdl circulator; circulator; delay lines; transmit receive ... See more keywords
Joint Transmit-and-Receive Antenna Selection System for MIMO-NOMA With Energy Harvesting
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Systems Journal"
DOI: 10.1109/jsyst.2021.3109306
Abstract: In this paper, outage probability (OP) of a joint transmit and receive antenna selection (JTRAS) scheme is analyzed in multiple-input multiple-output non-orthogonal multiple access based downlink energy harvesting (EH) relaying networks. In this dual-hop and… read more here.
Keywords: receive antenna; transmit receive; energy harvesting; antenna selection ... See more keywords
Wideband Antenna Array for Simultaneous Transmit and Receive (STAR) Applications
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2016.2632737
Abstract: Design and performance of a nonscanning antenna array with wideband simultaneous transmit and receive capability are discussed. The proposed configuration utilizes a four-arm spiral antenna as a unit cell to achieve high isolation between transmit… read more here.
Keywords: transmit receive; array; simultaneous transmit; antenna array ... See more keywords
A Wideband, Scanning Array of Four-Arm Spiral Elements for Simultaneous Transmit and Receive
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2020.2970402
Abstract: Simultaneous transmit and receive (STAR) is attractive because it doubles spectral efficiency and alleviates radio frequency spectrum congestion. As expected, a major challenge in STAR is the high power leakage from the transmitter to the… read more here.
Keywords: simultaneous transmit; array; transmit receive; isolation ... 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