Results 281 to 290 of about 984,557 (317)
Some of the next articles are maybe not open access.
Multibeam Antenna in Millimeter Waves
32nd European Microwave Conference, 2002, 2002This paper deals with a multibeam antenna in 60 GHz band. This structure is based on a Butler Matrix which fed a four printed antenna array. Two different solutions are presented to avoid the crossing point of the microstrip line : a microstrip-thick slot-microstrip transition or two hybrids 90°.
Lafond, Olivier, Himdi, Mohamed
openaire +2 more sources
A Grating Spectrometer for Millimeter Waves
Review of Scientific Instruments, 1948The millimeter wave-length region appears to be the crossover region beyond which optical measuring techniques are preferable to microwave techniques. For this reason a spectrometer based upon a reflecting echelette type grating was designed for the wave-length range from 3 to 12.5 millimeters.
openaire +2 more sources
Hemt’s capability for millimeter wave applications
Annales Des Télécommunications, 2001Ce papier presente un etat actuel des performances de puissance et de bruit des transistors a effet de champ a gaz ďelectrons bidimensionnel (hemt). On donne au travers de quelques lois simples, la dependance des caracteristiques electriques de ces composants avec la structure de couche (materiaux employes, epaisseursi) et la geometric Enfin on compare
Bollaert, S. +5 more
openaire +3 more sources
MILLIMETER WAVE SPECTRUM OF NITROMETHANE
Proceedings of the 71st International Symposium on Molecular Spectroscopy, 2016Abstract A new study of the millimeter wave spectrum of nitromethane, CH3NO2, is reported. The new measurements covering the frequency range from 49 GHz to 237 GHz have been carried out using the spectrometer in IRA NASU (Ukraine). Transitions belonging to the |m| ≤ 8 torsional states have been analyzed using the Rho-axis-method and the RAM36 program,
openaire +1 more source
A millimeter-wave intra-connect solution
2010 IEEE International Solid-State Circuits Conference - (ISSCC), 2010A novel millimeter-wave Intra-Connect solution for short range, high speed, internal I/O connections in low-power logic 40 nm CMOS process is demonstrated. The system consists of a transmitter and a receiver that uses binary amplitude shift keying (ASK) modulation for a compact and power efficient design.
Kenichi Kawasaki +9 more
openaire +1 more source
Millimeter-Wave Integrated Circuits
Topical Meeting on Picosecond Electronics and Optoelectronics, 1987The opportunities offered by monolithic millimeter-wave technology span radar, communications, electronic warfare, and missile seekers. These opportunities relate to size, weight, and cost reduction advantages over standard metal waveguide and hybrid integrated circuit implementations.
openaire +1 more source
Millimeter wave and sub-millimeter wave circuits for integrated system-on-a-chip
2011 IEEE International Symposium on Radio-Frequency Integration Technology, 2011Deep-scaled CMOS technologies have provided ultra-high speed devices for implementing integrated millimeter wave and sub-millimeter wave system-on-a-chip (SoC). Achieving SoC necessitates key mm-wave/sub-mm-wave circuits, including signal generators and amplifiers.
Qun Jane Gu +2 more
openaire +1 more source
The Large Millimeter-Wave Telescope
1997The Large Millimeter-wave Telescope (LMT) is a joint project of the United States and Mexico. The project goal is to construct and operate a 50m diameter millimeter-wave antenna. The antenna, shown schematically in Figure 1, will be built on a mountain site in Mexico and will have the highest gain and the highest overall sensitivity of any millimeter ...
openaire +1 more source
Survey Of Millimeter Wave Antennas
SPIE Proceedings, 1985A wide variety of antennas has been designed or is currently under study for the millimeter wave region. An overview over these antennas is presented. Two classes of antennas are distinguished, i.e., antennas of conventional configuration and antennas based on new design approaches.
openaire +1 more source
A millimeter wave network for billions of things
Proceedings of the ACM Special Interest Group on Data Communication, 2019With the advent of the Internet of Things (IoT), billions of new connected devices will come online, placing a huge strain on today's Wi-Fi and cellular spectrum. This problem will be further exacerbated by the fact that many of these IoT devices are low-power devices that use low-rate modulation schemes and therefore do not use the spectrum ...
Mohammad Hossein Mazaheri 0001 +3 more
openaire +1 more source