Results 21 to 30 of about 99,046 (328)

Characterizing Scattering Parameters of Superconducting Quantum Integrated Circuits at Milli-Kelvin Temperatures

IEEE Access, 2022
Designing large-scale superconducting quantum circuits involves complex microwave engineering to minimize loss, spurious reflections, and signal crosstalk.
Manoj Stanley, Sebastian De Graaf, Teresa Honigl-Decrinis, Tobias Lindstrom, Nick M. Ridler   +4 more
doaj   +1 more source

Dual-Polarized Omnidirectional Antenna With High Isolation Based on the Theory of Characteristic Modes

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, Guo Qing Luo, Ya Hui Qian, Xiao Hong Zhang, Hua Yan Jin, Zhang Cheng Hao   +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, Kawtar Zerhouni, Fouzia Elbahhar, Madjid Haddad, Christophe Loyez, Kamel Haddadi   +5 more
doaj   +1 more source

3D Absorptive Frequency-Selective Reflection and Transmission Structures With Dual Absorption Bands

IEEE Access, 2018
This paper presents a 3D absorptive frequency-selective reflection structure (AFSR) and absorptive frequency-selective transmission structure (AFST) with one reflection/transmission band and two absorption bands.
Yufeng Yu, Guo Qing Luo, Ahmed Abdelmottaleb Omar, Xuan Liu, Weiliang Yu, Zhang Cheng Hao, Zhongxiang Shen   +6 more
doaj   +1 more source

Microwave Components with MEMS Switches [PDF]

, 2000
RF MEMS switches with metal-metal contacts are being developed for microwave applications where broadband, high linearity performance is required. These switches provide less than 0.2 dB insertion loss through 40 GHz. This paper describes the integration
Allison, Robert C., Dolezal, Frank A., Hsu, Tsung-Yuan, Livingston, Stanley W., Loo, Robert Y., Pierce, Brian M., Quan, Clifton, Schaffner, James H., Schmitz, Adele E., Sievenpiper, Daniel F., Tangonan, Gregory L.   +10 more
core   +1 more source

Time-domain analysis of RF and microwave autonomous circuits by vector fitting-based approach [PDF]

, 2019
This work presents a new method for the analysis of RF and microwave autonomous circuits directly in the time-domain, which is the most effective approach at simulation level to evaluate nonlinear phenomena. For RF and microwave autonomous circuits, time-
Antonini, Giulio, Dhaene, Tom, Leuzzi, Giorgio, Pantoli, Leonardo, Romano, Daniele, Spina, Domenico   +5 more
core   +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, Emad Gad, Behzad Nouri, Weicong Na, Michel Nakhla   +4 more
doaj   +1 more source

Substrateless Packaging for a D-Band MMIC Based on a Waveguide with a Glide-Symmetric EBG Hole Configuration

Sensors, 2022
This paper presents a novel substrateless packaging solution for the D-band active e mixer MMIC module, using a waveguide line with a glide-symmetric periodic electromagnetic bandgap (EBG) hole configuration.
Weihua Yu, Abbas Vosoogh, Bowu Wang, Zhongxia Simon He   +3 more
doaj   +1 more source

Integration Design of Millimeter-Wave Filtering Patch Antenna Array With SIW Four-Way Anti-Phase Filtering Power Divider

IEEE Access, 2019
In this paper, the integration design of a millimeter-wave filtering patch antenna array fed by a substrate integrated waveguide (SIW) four-way anti-phase filtering power divider is proposed.
Huayan Jin, Guo Qing Luo, Wenlei Wang, Wenquan Che, Kuo-Sheng Chin   +4 more
doaj   +1 more source

Compact Dual-Broadband Dual-Polarized Antenna With Additional Ground Platform

IEEE Access, 2019
A compact dual-polarized antenna element covering the frequency bands of 0.773~1.0405 GHz and 1.69~2.83 GHz is proposed in this paper. The nested scheme is adopted and the performances of the lower- and upper-band element are analyzed, respectively.
Xi Wang Dai, Zhen Ye Wang, Xiao Chun Gao, Guo Qing Luo, Zhang Cheng Hao   +4 more
doaj   +1 more source