Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Stake, Jan"'
Publikováno v:
IEEE Transactions on Terahertz Science and Technology, 26 August 2024
A key challenge in developing terahertz front-ends is achieving high coupling efficiency between the waveguide feed horn and the optical beam. In this paper, we have quantified the alignment requirements for the widely used E-plane split diagonal hor
Externí odkaz:
http://arxiv.org/abs/2406.12627
This letter presents an experimental characterization technique for assessing the performance of terahertz harmonic mixers across a wide frequency range. The total signal transfer loss of three mixers was measured in both up- and down-conversion conf
Externí odkaz:
http://arxiv.org/abs/2401.01774
Publikováno v:
IEEE Transactions on Terahertz Science and Technology, vol. 13, 2023
This work presents a 340-GHz frequency-modulated continuous-wave (FMCW) pulse-Doppler radar. The radar system is based on a transceiver module with about one milli-Watt output power and more than 30-GHz bandwidth. The front-end optics consists of an
Externí odkaz:
http://arxiv.org/abs/2301.00558
Autor:
Moradikouchi, Anis, Sparén, Anders, Svensson, Olof, Folestad, Staffan, Stake, Jan, Rodilla, Helena
Near infrared (NIR) and Raman spectroscopy combined with multivariate analysis are established techniques for the identification and quantification of chemical properties of pharmaceutical tablets like the concentration of active pharmaceutical ingre
Externí odkaz:
http://arxiv.org/abs/2212.09311
Publikováno v:
IEEE Microwave and Wireless Technology Letters, Vol. 33, 2023
The planar Goubau line is a promising low-loss metal waveguide for terahertz interconnects. To enable advanced system architectures and multi-port measurements based on planar Goubau lines, there is a strong need for broadband impedance-matched loads
Externí odkaz:
http://arxiv.org/abs/2210.11847
Autor:
Bonmann, Marlene, Guío-Pérez, Diana Carolina, Bryllert, Tomas, Pallarès, David, Seemann, Martin, Johnsson, Filip, Stake, Jan
Current non-intrusive measurement techniques for characterising the solids flow in gas-solids suspensions are limited by the low temporal or low spatial resolution of the sample volume, or in the case of optical methods, by a short range of sight. In
Externí odkaz:
http://arxiv.org/abs/2210.01409
Low-loss planar Goubau lines show promising potential for terahertz applications. However, a single-wire waveguide exhibits less design freedom than standard multi-conductor lines, which is a significant constraint for realizing standard components.
Externí odkaz:
http://arxiv.org/abs/2206.01485
Porosity is an important property of pharmaceutical tablets since it may affect tablet disintegration, dissolution, and bio-availability. It is, therefore, essential to establish non-destructive, fast, and compact techniques to assess porosity, in-si
Externí odkaz:
http://arxiv.org/abs/2112.08843
Autor:
Hemmetter, Andreas, Yang, Xinxin, Wang, Zhenxing, Otto, Martin, Uzlu, Burkay, Andree, Marcel, Pfeiffer, Ullrich, Vorobiev, Andrei, Stake, Jan, Lemme, Max C., Neumaier, Daniel
Publikováno v:
ACS Applied Electronic Materials 3, 9, 3747-3753, 2021
Flexible energy harvesting devices fabricated in scalable thin-film processes are important components in the field of wearable electronics and the Internet of Things. We present a flexible rectenna based on a one-dimensional junction metal-insulator
Externí odkaz:
http://arxiv.org/abs/2106.11679
Autor:
Jayasankar, Divya, Drakinskiy, Vladimir, Rothbart, Nick, Richter, Heiko, Lü, Xiang, Schrottke, Lutz, Grahn, Holger T., Wienold, Martin, Hübers, Heinz-Wilhelm, Sobis, Peter, Stake, Jan
Efficient and compact frequency converters are essential for frequency stabilization of terahertz sources. In this paper, we present a 3.5-THz, x6-harmonic, integrated Schottky diode mixer operating at room temperature. The designed frequency convert
Externí odkaz:
http://arxiv.org/abs/2107.03532