Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Skrivervik, Anja K."'
Autonomous implantable bioelectronics rely on wireless connectivity, necessitating highly efficient electromagnetic (EM) radiation systems. However, limitations in power, safety, and data transmission currently impede the advancement of innovative wi
Externí odkaz:
http://arxiv.org/abs/2409.10763
Autor:
Vadher, Pratik, Skrivervik, Anja K., Zeng, Qihang, Sauleau, Ronan, Ho, John S., Sacco, Giulia, Nikolayev, Denys
Wearable on-body millimeter-wave (mmWave) radars can provide obstacle detection and guidance for visually impaired people. However, their everyday performance is hindered by the rigid form factor and limited scanning range. In this article, we propos
Externí odkaz:
http://arxiv.org/abs/2407.13644
In this paper, a compact wideband dual-polarized Luneburg lens antenna (LLA) with reduced anisotropy and improved impedance matching is proposed in Ka band with a wide 2D beamscanning capability. Based on transformation optics, the spherical Luneburg
Externí odkaz:
http://arxiv.org/abs/2405.11935
Publikováno v:
2024 IEEE Custom Integrated Circuits Conference (CICC)
To address the challenge of extending the transmission range of implantable TXs while also minimizing their size and power consumption, this paper introduces a transcutaneous, high data-rate, fully integrated IR-UWB transmitter that employs a novel c
Externí odkaz:
http://arxiv.org/abs/2405.04177
This paper presents radiation efficiency and gain bounds for microstrip patch antennas. The presented bounds are shown to be good predictors of antenna performance. Using the bounds, patch miniaturization techniques based on high permittivity substra
Externí odkaz:
http://arxiv.org/abs/2403.18844
Implantable wireless bioelectronic devices enable communication and/or power transfer through RF wireless connections with external nodes. These devices encounter notable design challenges due to the lossy nature of the host body, which significantly
Externí odkaz:
http://arxiv.org/abs/2312.14731
Autor:
Su, Yuanyan, Soares, Icaro V., Balon, Siegfred Daquioag, Cao, Jun, Nikolayev, Denys, Skrivervik, Anja K.
To overcome the limited payload of lightweight vehicles such as unmanned aerial vehicle (UAV) and the aerodynamic constraints on the onboard radar, a compact nonuniform conformal array is proposed in order to achieve a wide beamscanning range and to
Externí odkaz:
http://arxiv.org/abs/2312.09416
Autor:
Gao, Mingxiang, Sipus, Zvonimir, Soares, Icaro V., Raman, Sujith, Nikolayev, Denys, Skrivervik, Anja K.
This paper presents a method for the fast and accurate estimation of the gain pattern and maximum gain of an implanted antenna including the effect of the host body, under the assumption that the latter is electrically large. The estimation procedure
Externí odkaz:
http://arxiv.org/abs/2311.04722
Autor:
Liska, Jakub, Gao, Mingxiang, Jelinek, Lukas, Algarp, Erik R., Skrivervik, Anja K., Capek, Miloslav
Performance limitations for implanted antennas, taking radiation efficiency as the metric, are presented. The performance limitations use a convex optimization procedure with the current density inside the implant acting as its degree of freedom. The
Externí odkaz:
http://arxiv.org/abs/2307.16466
Implantable bioelectronics often relies on an RF-wireless link for communication and/or remote powering. Propagation through biological media is very lossy, and previous work has shown that these losses can be separated into three parts: the losses i
Externí odkaz:
http://arxiv.org/abs/2205.04971