Results 71 to 80 of about 21,968 (229)

Characterization of low-noise quasi-optical SIS mixers for the submillimeter band [PDF]

, 1996
We report on the development of low-noise quasi-optical SIS mixers for the frequency range 400-850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-trilayer junctions. Fourier-transform spectrometry has been used to verify
Bin, Mei, Gaidis, Michael C., LeDuc, Henry G., Miller, David, Stern, Jeffrey A., Zmuidzinas, Jonas   +5 more
core   +1 more source

Design and Fabrication of Capacitive Mems Actuator Array on Spoof‐Surface‐Plasmon‐Polariton Waveguide for Active Microwave Modulation

Advanced Photonics Research, Volume 7, Issue 1, January 2026.
a) Schematic of the SSPP waveguide integrated with SRR metamaterial and MEMS actuator arrays with electric field confinement in the gap below the microbridge. b) Cross‐section of the MEMS actuator consists of a buried lead line and a microbridge at different deflection positions. c) The notch band in the microwave transmission characteristic shifts due
Van Minh Nguyen, Yoshiaki Kanamori
wiley   +1 more source

Low-noise 1 THz niobium superconducting tunnel junction mixer with a normal metal tuning circuit [PDF]

, 1996
We describe a 1 THz quasioptical SIS mixer which uses a twin-slot antenna, an antireflection-coated silicon hyperhemispherical lens, Nb/Al-oxide/Nb tunnel junctions, and an aluminum normal-metal tuning circuit in a two-junction configuration.
Bin, M., Gaidis, M. C., LeDuc, H. G., Phillips, T. G., Zmuidzinas, J.   +4 more
core   +1 more source

Environmental and Ecological Monitoring with Biodegradable Technologies

Advanced Science, Volume 13, Issue 4, 19 January 2026.
This review examines the development and application of wireless biodegradable sensors for environmental monitoring. It explores (bio)degradable materials, their degradation mechanisms in various environments, and non‐toxic fabrication techniques. Additionally, it addresses scalable production and sustainable powering solutions, emphasizing the high ...
Mohammad Javad Bathaei, Yaren Bathaei, Zhengwei Liao, Maryam Yazdanmehr, Sarab S. Sethi, Denys Nikolayev, Filipe Arroyo Cardoso, Clementine M. Boutry   +7 more
wiley   +1 more source

Microstrip Line Modeling Taking into Account Dispersion Using a General-Purpose SPICE Simulator

Journal of Low Power Electronics and Applications
XSPICE models for a generic transmission line, a microstrip line, and coupled microstrips are presented. The developed models extend general-purpose circuit simulation tools using RF circuits design features.
Vadim Kuznetsov
doaj   +1 more source

Equivalent circuit of microstrip spiral inductor circuit generation by computer

Electronics Letters, 1985
A method of equivalent circuit generation by computer is illustrated using a microstrip spiral inductor as an example. The computer program modifies the circuit topology, adding nodes and components as necessary. Results are compared with a model derived from physical considerations and show a great improvement in performance for a small increase in ...
A.J. Baden Fuller, A.M. Parker
openaire   +1 more source

Programmable Chiral Radiation via Spin‐Decoupled Metasurface with Integrated Compound Phases

Advanced Science, Volume 13, Issue 1, 5 January 2026.
A programmable spin‐decoupled metasurface integrating propagation and geometric phases enables high‐purity chiral radiation with reconfigurable emission direction. Spin‐selective radiators combined with a compound phase decoupling strategy suppress undesired components, while embedded PIN diodes allow real‐time directional control.
Lu Song, Jian Ma, Min Li, Guolong Shi, Zanyang Wang, Xiaofeng Li, Liqiao Jing, Dashuang Liao, Zuojia Wang   +8 more
wiley   +1 more source

Microstrip filters for measurement and control of superconducting qubits

, 2013
Careful filtering is necessary for observations of quantum phenomena in superconducting circuits at low temperatures. Measurements of coherence between quantum states requires extensive filtering to protect against noise coupled from room temperature ...
Bennett, Douglas A., Chen, Wei, Longobardi, Luigi, Lukens, James E., Patel, Vijay   +4 more
core   +1 more source

Pneumatically‐Actuated Liquid Metal‐Based Frequency Reconfigurable Antenna

Advanced Science, Volume 13, Issue 5, 27 January 2026.
A look at a flexible, frequency‐tuning antenna A Soft Solution: Introducing a new antenna design made with liquid metal composites. A Full Package: Combining flexible antennas with pneumatic actuators. End‐to‐End Control: Automatic reconfiguration according to signal strength.
Yiwen Song, Aditya Bharambe, Dinesh K. Patel, Barbara Zhuo, Mason Zadan, Carmel Majidi, Swarun Kumar   +6 more
wiley   +1 more source

Efficient Gradient-Based Algorithm with Numerical Derivatives for Expedited Optimization of Multi-Parameter Miniaturized Impedance Matching Transformers [PDF]

Radioengineering, 2019
Full-wave electromagnetic (EM) simulation tools have become ubiquitous in the design of microwave components. In some cases, e.g., miniaturized microstrip components, EM analysis is mandatory due to considera¬ble cross-coupling effects that cannot be ...
S. Koziel, A. Pietrenko-Dabrowska
doaj