Advanced channelization technology for RF, microwave, and millimeterwave applications
Article Abstract:
Increased demand on receivers for communications and radar signal reception applications in the electromagnetic frequency range from 2 MHz to 300 GHz is bringing about the development of channelized receivers. Channelized receivers are useful to intercept, sort and classify the rapidly increasing density of signals per unit time in the radio frequency, microwave, and millimeterwave regions of the electromagnetic spectrum. Signal processing needs and capabilities, receiver and channelizer technologies, and recent developments in surface-acoustic-wave, bulk-acoustic-wave, magnetostatic-wave, and acousto-optical channelizer technologies are reviewed. The comparative power of analog signal processing for channelized receivers is given.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1991
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Yagi on a Microwave Communication System
Article Abstract:
Experiments performed at wavelengths below 200 centimeters are described. Beam and horizontally polarized radiation are discussed. Magnetron tubes used for the production of very short wavelengths are described. The geometry of the tube and its external connections are of great importance. A circuit diagram of an oscillator is included.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1984
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Frequency Optimization of Focused Microwave Hyperthermia Applicators
Article Abstract:
The tradeoff between heat localization and medium loss determine an optimal frequency for a focused microwave hyperthermia applicator with fixed aperture size and a given penetration depth. Focused applicators can compensate for the deficiencies of conventional applicators. Diagrams and graphs illustrate the optimization.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1984
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