Concept
Ultra-wideband
Related publications (141)
Enabling Wide Bandwidth in Substrate-Integrated Waveguide Slot Antennas by Using Low-Index Metamaterials
Romain Christophe Rémy Fleury, Amir Jafargholi, Jalaledin Tayebpour
This paper presents a solution to overcome the inherently limited bandwidth of substrate-integrated waveguide (SIW) slot antennas. It is analytically shown that by decreasing the permittivity of a dielectric loaded slot antenna, the resulting bandwidth inc ...
2024A 5G n77 Filter Using Shear Bulk Mode Resonator With Crystalline X-cut Lithium Niobate Films
This paper presents the use of a shear bulk acoustic mode resonator made of a membrane of X-cut lithium niobate (LiNbO3) for ultra-wide band filter applications. Aluminum interdigitated (IDT) electrodes are deposited on top of the LiNbO3 thin film as well ...
IEEE2023Intelligent RF System for Ultra Low Power Spectrum Sensing with Machine Learning
The crowdedness of the RF spectrum constitutes problems in communication, however it also accommodates large amount of useful information. This information can be used to determine existing signals and operating contexts. However, spectrum condition varies ...
EPFL2023Chaotic microcomb-based parallel ranging
Tobias Kippenberg, Aleksandr Tusnin, Junqiu Liu, Anton Lukashchuk
The intrinsic random amplitude and phase modulation of 40 distinct lines of a microresonator frequency comb operated in the modulation instability regime are used to realize massively parallel random-modulation continuous-wave light detection and ranging, ...
NATURE PORTFOLIO2023Design Methodology for Wideband Bowtie Patch Antenna for 5G mmWave Applications
Anja Skrivervik, Abolfazl Azari
Millimeter wave (mmWave) frequencies has become a research area of interest in recent years because of providing broad available bandwidth and thus higher data rates. Wideband mmWave antenna is one of the important development areas in wireless communicati ...
IEEE2023Nanoplasma-based Millimiter-wave Modulators on a Single Metal Layer
Fundamental constraints imposing power-frequency trade-offs in conventional electronics have stimulated research on alternative technologies for millimeter-wave and sub-millimeter-wave applications. In this work, we use the picosecond threshold firing of n ...
2022An All-Digital 1.25 Mbps 5-Subcarrier OFDM Backscatter Uplink with Delta-Sigma Modulation for Improved Spurious-Free Dynamic Range
This paper describes an all-digital backscatter modulation approach leveraging delta-sigma modulation (DSM) to improve the in-channel spectral characteristics of orthogonal frequency division multiplexed (OFDM) backscatter communication. We demonstrate thr ...
IEEE2022Strategies, Techniques and Systems for powering low-maintenance and battery-free devices through Energy Harvesting and Wireless Power Transfer
The purpose of this research has a background in the market for Internet of Things (IoT)devices and wireless sensor networks. The Market Forecast predicts the connection of a trillion"things" by 2025. The global smart sensor market size trend grows from US ...
EPFL2022Power-Optimized Digitally Controlled Oscillator in 28-nm CMOS for Low-Power FMCW Radars
Christian Enz, Francesco Chicco, Franz Xaver Pengg, Sammy Cerida Rengifo
This work presents the design of a 24-GHz digitally controlled oscillator (DCO) in an advanced 28-nm bulk CMOS technology for short-range frequency-modulated continuous-wave radar system-on-chip for mobile and Internet-of-Things devices. The power minimiza ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021X-Band Aom On Chip
Tobias Kippenberg, Anat Siddharth, Junqiu Liu
Silicon Nitride integrated photonic circuits have drawn much attention owing to its ultra-low loss and large Kerr nonlinearity. However, the lack of Pockels effect makes it difficult to be modulated clectro-optically, which posts a major challenge for the ...
IEEE2021