RF & Antenna Education

From first principles to advanced beamforming — our library of guides, tutorials, and deep-dives is free for engineers, students, and enthusiasts worldwide.

Learning Paths

Structured topic guides — each covers a complete subject area with articles, equations, and worked examples.

Filter
Showing 48 articles  ·  Page 3 of 8
6 per page
⚡
Beginner
RF Fundamentals

Introduction to Electromagnetic Fields

Part 1 of the Maxwell's equations series: electric and magnetic fields, field intensity, field lines, Coulomb and Biot–Savart laws, the Lorentz force, electric vs magnetic fields, an introduction to electromagnetic waves, and why field theory matters in RF engineering.

Read guide →
🔁
Intermediate
Transmission Line Theory

Terminated Lossless Transmission Lines

Applying boundary conditions to a lossless line with an arbitrary load — voltage reflection coefficient, input reflection coefficient, input impedance formula, quarter-wave transformer, stub reactances, standing wave patterns, and VSWR.

Read guide →
🔵
Beginner
RF Fundamentals

Understanding Electric Flux and Gauss's Law

Part 2: electric flux through flat and arbitrary surfaces, Gaussian surfaces, Gauss's law in integral and differential form, fields of point charges, charged spheres and conducting spheres, and the electric field and capacitance of a coaxial cable.

Read guide →
🧲
Beginner
RF Fundamentals

Understanding Magnetic Flux and Gauss's Law for Magnetism

Part 3: magnetic flux and its units, flux linkage, magnetic field lines, Gauss's law for magnetism (∮B·dA = 0, ∇·B = 0), why magnetic monopoles do not exist, and magnetic flux in inductors, transformers and RF components.

Read guide →
🔄
Intermediate
RF Fundamentals

Faraday's Law of Electromagnetic Induction

Part 4: the discovery of induction, Faraday's law and its negative sign, Lenz's law, integral and differential forms, and applications in generators, transformers, inductive coupling, wireless power transfer, NFC and EMI.

Read guide →
🌀
Intermediate
RF Fundamentals

Ampere's Circuital Law

Part 5: magnetic fields of currents and the right-hand rule, enclosed current, Ampère's law in integral and differential form, fields of wires, solenoids, toroids and coaxial lines, coax inductance and characteristic impedance, and the law's limitations.

Read guide →

Have a Technical Question?

Reach out directly — we're a small team of RF engineers and we actually reply.