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diff --git a/journal/20250703.org b/journal/20250703.org new file mode 100644 index 0000000..fce34c7 --- /dev/null +++ b/journal/20250703.org @@ -0,0 +1,23 @@ +#+TITLE: Daily Journal +#+STARTUP: showeverything +#+DESCRIPTION: My daily journal entry +#+AUTHOR: Preston Pan +#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="../style.css" /> +#+html_head: <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script> +#+html_head: <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script> +#+options: broken-links:t +* Thursday, 03 July 2025 +** 20:05 +I am currently studying more radio mathematics in order to fully understand +how certain radio modes work, and secondly how antennas work on a deeper level. +I've gained some insight into antennas already by analyzing the radiation patterns +of dipole antennas and loop antennas, particularly with the use of retarded potentials +and certain simplifying assumptions regarding the strength of far-field radiation and the +size of the dipole as well as the transmitting frequency. + +Additionally, I am studying many filter circuits that are used in superheterodyne circuits, +and I am studying the structure of different transmitters such as AM, QAM, SSB, and FM +transmitters. I hope to gain a fully functional understanding of these transmitters as well +as an understanding of the different propagation methods (skywave, ground wave, moon bounce, scattering, etc...). +Of course I already have an operational understanding of propagation, but I would like to understand +these all from a mathematical perspective, and understand polarization with regards to scattering. |