Concept
Radiation resistance
Related publications (56)
Maximum Radiation Efficiency of an Implantable Antenna: The Role of High-Order Modes
Anja Skrivervik, Mingxiang Gao, Jakub Liska
A combination of two numerical techniques of computational electromagnetics, namely, method of moments and vector spherical wave expansion, is used to show performance limitations on the radiation efficiency of implantable antennas and to efficiently resol ...
IEEE2023Radiation Patterns of RF Wireless Devices Implanted in Small Animals: Unexpected Deformations Due to Body Resonance
Anja Skrivervik, Stéphanie Lacour, Zvonimir Sipus, Mingxiang Gao, German Augusto Ramirez Arroyave, Kangling Wu
One challenge in designing RF wireless bioelectronic devices is the impact of the interaction between electromagnetic waves and host body tissues on far-field wireless performance. In this paper, we investigate a peculiar phenomenon of implantable RF wirel ...
2023Dual-Polarized SIW Slot Antenna Using ENZ Metamaterial for 5G and mmWave Applications
Romain Christophe Rémy Fleury, Amir Jafargholi
This paper presents a broadband dual-polarized substrate integrated waveguide (SIW) slot antenna. It is analytically shown that by decreasing the permittivity of a dielectricloaded slot antenna, the resulting bandwidth increases significantly, where the wi ...
IEEE2023Multi-antenna 3D pattern design for millimeter-wave vehicular communications
The transformation of the automotive industry towards ubiquitous connection of vehicles with all kind of external agents (V2X) motivates the use of a wide range of frequencies for several applications. Millimeter-wave (mmWave) connectivity represents a par ...
2022Optical computing and reconfiguring with spatiotemporal nonlinearities in waveguides
Demetri Psaltis, Christophe Moser, Ugur Tegin
A device for optical computing comprises at least one modulator (210, 710, 810, 910, 1010, 1110, 1210, 1310, 1410, 1520, 1610, 1710, 1810, 1910, 2010, 2110, 2210) and at least one waveguide (220, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1530, 1620, 172 ...
2022Rules of Thumb to Assess Losses of Implanted Antennas
Anja Skrivervik, Zvonimir Sipus, Denys Nikolayev, Mingxiang Gao
Fundamental limits for implanted antennas should be able to evaluate the bounds on losses with the knowledge of physical limitations from antenna and tissue parameters. In this work, rules of thumb to assess losses of deeply implanted antennas are presente ...
IEEE2021Ultralow-Profile Circularly Polarized Reflectarray Antenna for CubeSat Intersatellite Links in K-B and
Anja Skrivervik, Miroslav Veljovic
An ultralow-profile circularly polarized (CP) reflectarray (RA) antenna is presented in this article, based on the variable-rotation technique for beam collimation and scanning. Starting from a conventional split-loop element, a new wideband element is des ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021Subarray antenna fed by analog beamforming network for 5G picocell applications
In this paper a subarray fed by an analog beamforming network for 5G picocell applications is proposed. Design requirements are presented taking into account frequency band operation, bandwidth, radiation pattern shape and both, antenna element and transmi ...
IEEE2020Dielectric-Loaded Conformal Microstrip Antennas for Versatile In-Body Applications
Anja Skrivervik, Denys Nikolayev
Wireless implantable bioelectronics and accurate in vivo characterization of path loss require efficient and robust in-body antennas. Loading electric antennas with the effective permittivities higher than that of surrounding tissues is a promising solutio ...
2019