Paper
14 September 1994 Microwave optics and pulsed-wave detection
George C. Giakos, Thomas Koryu Ishii
Author Affiliations +
Abstract
The energy-decay behavior of pulsed microwaves launched in air has been investigated with different microwave optics geometries. Experimental results, related to different geometries indicate that within the range of our measurements, the detected power referred to the peak intensity of pulsed microwave, decays much slower than those counterparts predicted by the Friis transmission equation as well as by the radar equation. In addition, a novel standing wave measuring technique is presented, where the concept of the `apparent wavelength' is experimentally demonstrated. These observed phenomena may give rise to potential applications in bioengineering, communications and control, where maintenance of the initial pulse amplitude and/or energy profile over long distances is important.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
George C. Giakos and Thomas Koryu Ishii "Microwave optics and pulsed-wave detection", Proc. SPIE 2275, Advanced Microwave and Millimeter-Wave Detectors, (14 September 1994); https://doi.org/10.1117/12.186709
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KEYWORDS
Microwave radiation

Antennas

Receivers

Reflectors

Modulation

Radar

Signal detection

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