Interactive · Hands-on

Tutorials you can touch.

Bite-size, physically-grounded explainers for RF, DSP & radar. The live ones run right here — press play, drag, tinker. More are landing soon.

13 tutorials
|V(z)| · Γ SWEEP
V(z,t)|V|
Transmission Lines New

Standing Waves & VSWR

incident ⊕ reflected → |V(z)|
Intro
Open
ARRAY FACTOR
Antennas New

Antenna Array Synthesis

N·λ/2 elements → steer θ₀
Deep
Open
STATE EST.
measx̂
Estimation New

Kalman Filters Explained

From baby steps to black magic

predict → measure → update
Deep
Open
MODE FIELD
Resonators

Dielectric Resonator Excitation

TE01δ mode field coupling
Deep
Open
Vout CHARGE
Vout
RF Power Coming soon

RF Energy Harvesting

rectenna → C storage → Vout
Core
Coming soon
IQ · QPSK
DSP Coming soon

IQ Sampling & the Complex Plane

I + jQ → constellation
Intro
Coming soon
SPECTROGRAM
f(t)replica
Radar Coming soon

Matched Filter & Pulse Compression

LFM chirp ⊗ replica → peak
Core
Coming soon
|H(f)| dB
|H|
DSP Coming soon

FIR Filter Design

taps · window → |H(f)|
Core
Coming soon
Γ LOCUS
Matching Coming soon

Smith-Chart Matching

Z_L → Γ locus → match
Deep
Coming soon
LOCK
PHASE LOCK
refVCO
Sync Coming soon

PLL Carrier Recovery

phase error → VCO lock
Core
Coming soon
MAGNITUDE
DSP Coming soon

FFT Windowing & Leakage

w[n]·x[n] → spectral bins
Intro
Coming soon
MLP · 3·4·2
ML Coming soon

How a Neural Network Learns

Step-by-step, from zero

forward → loss → backprop
Core
Coming soon
INTERCEPT
missileLOS
Guidance Coming soon

Proportional Navigation Guidance

Interactive intercept simulator

a⊥ = N · Vc · λ̇
Core
Coming soon
4 LIVE · 9 COMING SOON
Growing toward 100 — request a topic on GitHub