Results 191 to 200 of about 9,292 (252)

Design and Evaluation of a Capacitive Micromachined Ultrasonic Transducer(CMUT) Linear Array System for Thickness Measurement of Marine Structures Under Varying Environmental Conditions. [PDF]

Micromachines (Basel)
He C, Luo M, Chai H, Wang H, Zhang G, Wang R, Cui J, Yang Y, Zhang W, Jia L.   +9 more
europepmc   +1 more source

Distributed battery-free bioelectronic implants with improved network power transfer efficiency via magnetoelectrics. [PDF]

Nat Biomed Eng
Woods JE, Alrashdan F, Chen EC, Tan W, John M, Jaworski L, Bernard D, Post A, Moctezuma-Ramirez A, Elgalad A, Steele AG, Barber SM, Horner PJ, Faraji AH, Sayenko DG, Razavi M, Robinson JT.   +16 more
europepmc   +1 more source

Quantitative abdominal sodium MRI combined with 32-channel proton pTx MRI at 7 Tesla in a large field-of-view. [PDF]

Magn Reson Med
Scheipers AK, Grimm JA, Losch J, Orzada S, Fiedler TM, Nagel AM, Schmitter S, Ladd ME, Platt T.   +8 more
europepmc   +1 more source

ConvLoRa: Convolutional Neural Network-Based Collision Demodulation for LoRa Uplinks in LEO-IoT. [PDF]

Sensors (Basel)
Hong T, Xu L, Yu X, Shen J, Zhang G.
europepmc   +1 more source

Multi-UAV-Assisted ISAC System: Joint User Association, Trajectory Design, and Resource Allocation. [PDF]

Entropy (Basel)
Wang J, Xu R, Peng L, Wei X.
europepmc   +1 more source

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Wideband Monostatic Simultaneous Transmit and Receive (STAR) Antenna

IEEE Transactions on Antennas and Propagation, 2016
A monostatic ultra-wideband simultaneous transmit and receive (STAR) antenna subsystem is introduced. An inherent geometrical symmetry of a four-arm spiral antenna and feeding rearrangement are exploited to achieve the simultaneous transmit (TX) and receive (RX) functionalities without any time, polarization, or frequency multiplexing.
Ehab A. Etellisi, Mohamed A. Elmansouri, Dejan S. Filipovic   +2 more
openaire   +3 more sources

A Concurrently Dual-Polarized, Simultaneous Transmit and Receive (STAR) Antenna

IEEE Transactions on Antennas and Propagation, 2020
A concurrently dual-polarized, simultaneous transmit and receive (STAR) antenna system with high transmit (TX)-receive (RX) isolation is presented. The STAR antenna consists of four dual-polarized patches, two for TX and two for RX. The radiators are fed using a network consisting of four 90° hybrids and four 180° hybrids.
Mohammad Ranjbar Nikkhah, Jie Wu, Hung Luyen, Nader Behdad   +3 more
openaire   +3 more sources

High-Rejection RF Code Domain Receivers for Simultaneous Transmit and Receive Applications

IEEE Journal of Solid-State Circuits, 2020
Code-domain signal processing techniques implemented at radio frequencies (RFs) enable simultaneous transmit and receive (STAR) applications. With direct sequence spread spectrum (DSSS) techniques and RF correlators, transmit (TX) self-interference (SI) is separated from the receive (RX) signal at the antenna interface for STAR.
Ahmed Hamza, Cameron Hill, Hussam AlShammary, James Buckwalter   +3 more
openaire   +3 more sources