Results 221 to 230 of about 9,021 (267)
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Fence guide for millimeter waves
Proceedings of the IEEE, 1971In this paper a new waveguide for millimeter waves called "Fence Guide" is discussed. A description of the guide, the field distribution, and its characteristics is presented.
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IEEE Journal of Solid-State Circuits, 2005
This paper describes the design and modeling of CMOS transistors, integrated passives, and circuit blocks at millimeter-wave (mm-wave) frequencies. The effects of parasitics on the high-frequency performance of 130-nm CMOS transistors are investigated, and a peak f/sub max/ of 135 GHz has been achieved with optimal device layout.
Chinh H. Doan +3 more
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This paper describes the design and modeling of CMOS transistors, integrated passives, and circuit blocks at millimeter-wave (mm-wave) frequencies. The effects of parasitics on the high-frequency performance of 130-nm CMOS transistors are investigated, and a peak f/sub max/ of 135 GHz has been achieved with optimal device layout.
Chinh H. Doan +3 more
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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.
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Millimeter-Wave Integrated Circuits
IEEE Transactions on Microwave Theory and Techniques, 1968Monolithic millimeter-wave integrated circuits have been designed and fabricated on semi-insulating GaAs substrates using microstrip transmission lines. Circuits using hybrid techniques have also been constructed on quartz and ceramics. This paper shows that microstrip-line integrated circuits are feasible at millimeter-wave frequencies.
S. Mao, S. Jones, G.D. Vendelin
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Millimeter Wave Antenna Technology
IEEE Journal on Selected Areas in Communications, 1983Millimeter wave antenna technology has had a long history of development, and as millimeter wave systems evolve through planning to implementation, a significant amount of additional development work will be required. Millimeter wave antennas play a key role in the rationale for millimeter system designs because high spatial resolution can be achieved ...
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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
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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.
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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 ...
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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,
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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.
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