Wireless Communications by Andrea Goldsmith (The industry standard).
Most textbooks assume ideal components. This PDF typically dedicates chapters to: Wireless Communication From The Ground Up Pdf
A resource like Wireless Communication From The Ground Up typically starts by explaining frequency and wavelength. You learn why submarines use Extremely Low Frequencies (ELF) to penetrate water, while your home router uses Super High Frequencies (SHF) to blast Netflix across your living room. You also learn the critical rules of the road—spectrum allocation and regulation—which explains why your radio doesn't interfere with your microwave (usually). Wireless Communication From The Ground Up Pdf