Phase Determination In Multi-antenna Detection Chirped-pulse Microwave Spectroscopy
Swanson, Christian
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https://hdl.handle.net/2142/111511
Description
Title
Phase Determination In Multi-antenna Detection Chirped-pulse Microwave Spectroscopy
Author(s)
Swanson, Christian
Contributor(s)
Grubbs, G.S., II
Isert, Joshua E.
Duerden, Amanda
Moon, Nicole
Issue Date
2021-06-24
Keyword(s)
Rotational structure/frequencies
Abstract
In the last year, a paper was published by our group describing a multi-antenna detection, chirped-pulse Fourier transform microwave (MAD-CP-FTMW) spectrometer. A talk will also be given at this conference regarding this instrument and its design. The major unique aspect of the spectrometer, though, is that it possesses antennae in the traditional (0 degrees), quadrature (two at 90 degrees), and broadcast (180 degrees from the traditional antenna) locations. It was discovered that signal could be detected on the antennae that were not in line with the excitation. Because signal was able to be collected from nontraditional locations, the determination of the phase differences in the free induction decays from differing detection locations has become very important. The methods used to determine the phase shift of collected data, as well as the methods of shifting the data will be discussed.
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