Electromagnetic Waves and Antennas (2016) (opens in new tab)

2nd that. As a hobbyist with a limited theory knowledge and no chance to learn something as I would forget it in a week if not used daily, I'd rather pick a book that explains the "why" in a way i can understand (examples!) just like I was learning to play an instrument by ear instead of attending music school for a decade or more.

I loved The Art of Electronics and some books by the ARRL, but also would suggest those from RSGB (the ARRL equivalent in Great Britain). Regarding antennas, unless one works above the GHZ, technology hasn't changed in decades, so many electronics and HAM related magazines and books that can be downloaded for free from the Internet Archive can be a valuable source of information.

> It's essentially a big data dump of formulas that doesn't explain the "why". [...] But at the very least, the formulas are derived from and relate to empirical observations. You don't teach chemistry by treating it as a set of math axioms, right?

It is common in science to define/treat some objects as "axiomatically defined black boxes", because this enables a much faster lecture pace and thus teaching the student a lot more deep material.

But it is common that the lecturer (at least if asked) loves to gives literature references to much deeper textbooks that give these explanations. But you should keep in mind that these textbooks are typically not for the faint of heart, because they demand a lot from the student. That is actually the reason why such topics are not treated in introductory courses for the students who don't want to major in this subject. But nearly always: if you are interested, simply ask the lecturer for literature references and be prepared to learn brutally hard from the literature references that he gives.

I understand exactly what you mean. I think I had to read/learn how to interpret Maxwell's Equations many times before it started to click (and even then, a refresher every so often is useful). Feels to me that the electromagnetism traditionally taught in Physics is more of the "basics" then the EE courses do the deep-dive.

These textbooks tend to be aimed at graduate students that have had the following classes:

- calculus 1-4

- diff equations

- linear algebra

- electrostatics/magnetism

- electronics (analog, digital, microwave)

- signal processing

When you see Maxwell's Equations as the first chapter, that indicates prerequisite knowledge in just that. The first chapter in this book is just a summary of the whole electromagnetism class, which is traditionally a pretty rigorous and difficult class.

At least that was the case when I took similar classes during grad school.

Either way, any class on antennas, radars, communication systems, etc. will be a pretty applied type of class, that is the sum of all the pre-req classes.

We have arguably more basic layer of abstractions which can help to derive the Maxwell equations. That is basic existence of charge (and vacuum properties - permittivity and permeability), theory of relativity (the special one) and math, which allows derivation of Gauss's law, Faraday's law, Amper's law. So if for somebody it's easier to understand the constant nature of the speed of light, he can explain Maxwell's equations from that.

Classical magnetism has a fantastic explanation in Feynman Lectures on Physics fwiw.

You may like the style of books written by the ARRL for ham radio operators. Here is a link: https://www.arrl.org/9

YouTube is pretty good at both theory part: there's MIT physics class, but also on intuitive parts (i.e. visualizing how phase arrays work). ChatGPT is also seems to be very good at TA/Professor job when grinding through math-heavy parts: asking intuitively explain things do wonders. And you can also ask lots of stupid questions to understand things.

Pretty sure I had Prof. Orfanidis for a DSP lab back in the day. I don't remember much from that lab aside from playing with some old DSP dev boards and creating positive audio feedback ¯\_(ツ)_/¯