Microwaves are Everywhere "CMB: Hiding in Plain Sight"

Creators: Siegel, Peter H.

Abstract

This article is the first in a continuing series of general interest papers on the applications of microwaves in areas of science and technology that might not be evident to the casual observer. What better topic to start the series than an introduction to the most pervasive microwave field in the universe: the cosmic microwave background (CMB). The prediction, discovery and importance of the CMB from a microwave engineering perspective are reviewed and discussed.

Additional Information

© 2020 IEEE. This work is licensed under a Creative Commons Attribution 4.0 License. Received 14 August 2020; revised 9 September 2020; accepted 14 September 2020. Date of current version 7 January 2021. The author thanks Dr. Heather Lee, Pasadena, CA, USA, for discussions on relativity and initial review. He also thanks and appreciates a read-through of the initial submitted manuscript by Dr. John Mather with returned comments, corrections, and many excellent suggestions for improving the article. The author highly recommends two excellent books and a chapter/review article with lots of technical details and references (see [90] and [91]). Interested lay readers are highly encouraged to access the very readable book by University of Cardiff astronomer, Rhodri Evans, from which much of this article is structured (see [35]).

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