Results 231 to 240 of about 225,187 (289)

Optically controlled microwave devices

International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153), 2002
In this paper, a review is given of recent advances in optically controlled microwave and millimeter wave devices and circuits. Special emphasis will firstly be laid on the physical background of optical effects in semiconductor materials and structures.
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Microwave avalanche devices

Journal of Physics E: Scientific Instruments, 1974
Avalanche diodes are finding an increasing number of applications as sources of microwave power in the frequency rane 1-100 GHz. There are two basic modes of operation; the IMPATT mode in which the diode behaves as a negative conductance in a resonant circuit, and the TRAPATT mode in which the diode acts as a fast switch which periodically discharges ...
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Relativistic Microwave Devices

2018
Relativistic microwave devices are a large group of generators and amplifiers of microwave radiation in which the relativistic effects are noticeably manifested: the dependence of the electron mass on energy as well as the normal and anomalous Doppler effects. Pecualarities of elecron-field interaction in relativistic devices are considered, main types
Andrey D. Grigoriev, Vyacheslav A. Ivanov, Sergey I. Molokovsky   +2 more
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Microwave semiconductor devices

Radio and Electronic Engineer, 1966
The paper examines some of the classes of microwave devices which are of current interest. Devices described are: frequency multipliers, up-converters, parametric amplifiers, tunnel diodes, backward diodes, hot electron devices and Gunn effect oscillators. Some of the problems and developments which the future may hold are discussed.
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Microwave Acoustic Devices

8th European Microwave Conference, 1978, 1978
Acoustic waves have several attractive features for device applications. Low velocities lead to compact devices. Use of crystalline materials gives low propagation losses and good reproducibility and stability. Surface acoustic waves offer in addition exceptional versatility, owing to accessibility of the propagation path.
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Microwave Semiconductor Devices

Physics Bulletin, 1971
H V Shurmer London: Pitman 1971 pp xi + 223 price £2.25 This book is written primarily for the undergraduate and provides a comprehensive account of the various microwave semiconductor devices of interest in the field of microwave engineering.
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Microwave Heterojunction Devices

19th European Microwave Conference, 1989, 1989
High quality heterostructures, especially of compound semiconductors have realized superior performance microwave and millimeterwave devices to GaAs MESFETs. Activities on such heterojunction devices in Japan are reviewed and discussed. The works on modulation-doped heterostructure devices, hetero MISFETs, hetero junction bipolar transistors(HBTs) and ...
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Microwave magnetoelectric devices

2004 14th International Crimean Conference "Microwave and Telecommunication Technology" (IEEE Cat. No.04EX843), 2004
One of prospective directions of solid-state electronic engineering is to produce new devices on the basis of magnetoelectric materials. The design and application of a new microstrip microwave filter and attenuator based on composite ferrite-piezoelectric resonators are considered.
A.S. Tatarenko, M.I. Bichurin, G. Srinivasan   +2 more
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Microwave semiconductors devices

Reports on Progress in Physics, 1985
The field of microwave semiconductor devices has expanded greatly in recent years, both in the functions that may be performed and the range of devices available for any function. The upper frequency limits of transistor operation have also marched steadily upwards, with millimeter-wave (above 30 GHz) operation being achieved in many laboratories ...
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Magnetoresistance microwave devices

Solid-State Electronics, 1966
Abstract This paper describes, in theory and experiment, three different types of application of the magnetoresistance effect at microwave frequency: the first is a microwave wattmeter, employing the multiplying action between the electric field and magnetic field components of the wave; the second a microwave mixer, employing the multiplying action ...
S. Kataoka, H. Naito
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