Results 211 to 220 of about 23,034 (257)

Microwave Circuit Theory

Journal of the Physical Society of Japan, 1952
The electric current \(\dot{I}\) and the volage \(\dot{V}\) on the imagined surface S are defined by \(\dot{I}\textbf{\itshape F}=\textbf{\itshape H}^{t}\), \(\dot{P}=\dot{V}\tilde{I}\) or \(\dot{I}\textbf{\itshape F}=\textbf{\itshape E}\), \(\tilde{P}=\dot{V}\tilde{I}\), where H t , E t are tangential magnetic and electric field components on S , and ...
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A theory of microwave lineshifts

Journal of Physics B: Atomic and Molecular Physics, 1976
The Anderson theory of pressure broadening of spectral lines in the microwave region (1949) is extended to permit calculations of the shifts of spectral lines. The extension is based on the analytic evaluation of double integrals. Mathematical details are presented for the dipole-dipole, dipole-quadrupole and quadrupole-quadrupole interactions.
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Recollections on microwave theory

1991 IEEE MTT-S International Microwave Symposium Digest, 2002
The author presents a personal retrospective and anecdotal recollection of a small part of the MIT Radiation Laboratory's World War II activities, namely that facet which contributed to the development of the theory of the propagation of microwaves in waveguides.
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Microwave discharge theory for the microwave ion source

Review of Scientific Instruments, 1992
This article is about physical foundation of the microwave plasma ion source. The expressions to describe some physical regulations are given. The results show that the source is operated in the optimum state under the condition of electron cyclotron resonance (ωz=ω). This theory can also be applied to the microwave plasma cathode.
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Microwave Filter Theory and Design

Proceedings of the IRE, 1949
The first part of this paper gives the theory cf waveguide filters with arbitrary identical links, and their matching to a line. The treatment differs from that previously presented in the literature, in that the electromagnetic state of the impedors and transducers is described by relations between the incident and reflected waves. This simplifies the
J. Hessel, G. Goubau, L.R. Battersby
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APPLICATION OF THE SENSITIVITY THEORY IN MICROWAVE MEASUREMENTS

Journal of Circuits, Systems and Computers, 1999
In the measurement of reflection coefficient, inaccuracy of the calibration standards may result in the measurement inaccuracy. It is shown that circuit theoretical methods6 are applicable for the reduction of this kind of measurement inaccuracy. Two methods for the reduction of such measurement inaccuracy are introduced and verified in examples.
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Theory and Applications of Microwave Energy in Communition

Key Engineering Materials, 2004
Thermal expansion of the selectively heated minerals offers the potential to further liberate the ore minerals from the gangue at larger particle sizes [1]. Cleaner liberation of the ore mineral at a larger particle size would reduce the grinding energy requirements as well as improve the concentrate grade and metal recovery after beneficiation ...
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Microwave Aperture Antennas and Diffraction Theory*

Journal of the Optical Society of America, 1962
Various studies of diffraction of electromagnetic waves motivated by and applied to work on microwave aperture antennas are reviewed in relation to their significance to the study of optics. A critique of the Kirchhoff formula is presented to show the essentially heuristic nature of the formula and its range of applicability.
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The theory of microwave detection by a discharge

Czechoslovak Journal of Physics, 1967
The presented paper tries to establish a compact theory of the hitherto only slightly explored effect of modulated electro-magnetic microwave field detection in a glow discharge. Apart from theoretical analyses aimed at maximum possible generality and applicability also for other types of discharges, the paper presents the most important results of ...
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Myths in microwave filter theory

2014 20th International Conference on Microwaves, Radar and Wireless Communications (MIKON), 2014
In the microwave filter theory there are several concepts and ideas that can be considered as misleading or even false. In the paper some of the “mythical” concepts are addressed and explained. Coupling between resonators realized through ideal inverters is analyzed by means of eigenfrequency method and differences between inverters and their impact on
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