Results 1 to 10 of about 8,398 (119)
A MIMO Radar System based on Fractal Antenna Arrays for Level Measurement Applications [PDF]
Advances in Radio Science, 2021 In this contribution, the design of a multiple-input multiple-output (MIMO) radar system in 77–81 GHz range with 18 transmitting antennas and 24 receiving antennas for measuring the height profile of bulk solids in silos, is presented and discussed.
C. Dahl, M. Vogt, I. Rolfes
doaj +1 more source
Characterization and Modeling of Quantum Dot Behavior in FDSOI Devices
IEEE Journal of the Electron Devices Society, 2022 A compact analytical model is proposed along with a parameter extraction methodology to accurately capture the steady-state (DC) sequential tunneling current observed in the subthreshold region of the transfer $I_{DS}-V_{GS}$ characteristics of MOSFETs
S. Pati Tripathi +11 more
doaj +1 more source
High-Tc Superconducting Microwave and Millimeter Devices and Circuits—An Overview
IEEE Journal of Microwaves, 2022 High temperature (high-Tc) superconductors (HTS) have found many applications in the last two decades. To microwave researchers and engineers, the ultra-low surface resistance of the thin-film HTS materials at microwave and millimeter frequencies and the
Ting Zhang, Jia Du, Y. Jay Guo
doaj +1 more source
Wideband Direction-of-Arrival Estimation With Arbitrary Array via Coherent Annihilating
IEEE Access, 2019 In this paper, a new wideband DOA estimation method for arbitrary array application is proposed. The arbitrary array manifold is approximately decomposed under the concept of manifold separation technique (MST) and a linear combination of the equal ...
Yujian Pan +4 more
doaj +1 more source
Simulation and Automated Modeling of Microwave Circuits: State-of-the-Art and Emerging Trends
IEEE Journal of Microwaves, 2021 Microwave modeling and simulation are essential to designing microwave circuits and systems. Although fundamental concepts and approaches for modeling and simulation are mature, the drive to higher frequencies, tighter design margins, and more ...
Qi-Jun Zhang +4 more
doaj +1 more source
Direction-of-Arrival Estimation With ULA: A Spatial Annihilating Filter Reconstruction Perspective
IEEE Access, 2018 Direction-of-arrival (DOA) estimation under low signal-to-noise ratio (SNR) and snapshot deficient scenarios has practical application value. Since the array output of the uniform linear array (ULA) can be viewed as a linear combination of the equal ...
Yujian Pan +3 more
doaj +1 more source
3D Band-Absorptive Frequency Selective Rasorber: Concept and Analysis
IEEE Access, 2019 This paper presents a 3D band-absorptive frequency selective rasorber (FSR). Such an FSR is absorptive within a specific band and almost transparent below the absorption band. The definition and evaluation of the band-absorptive FSR is initially provided
Yufeng Yu +6 more
doaj +1 more source
IEEE Access, 2018 A dual-polarized antenna with omnidirectional radiation and high isolation performance is proposed in this paper. The proposed antenna consists of courtyard-shaped metal frame, feeding network, and metal background.
Xi Wang Dai +5 more
doaj +1 more source
Cyclostationary-Based Vital Signs Detection Using Microwave Radar at 2.5 GHz
Sensors, 2020 Non-contact detection and estimation of vital signs such as respiratory and cardiac frequencies is a powerful tool for surveillance applications. In particular, the continuous wave bio-radar has been widely investigated to determine the physiological ...
Fatima Sekak +5 more
doaj +1 more source
Non-Contact Detection of Vital Signs Based on Improved Adaptive EEMD Algorithm (July 2022)
Sensors, 2022 Non-contact vital sign detection technology has brought a more comfortable experience to the detection process of human respiratory and heartbeat signals.
Didi Xu +3 more
doaj +1 more source