Monthly Design
A constrained engineering problem with multiple award categories: performance, elegance, measurement, explanation and beginner solution.
Challenges
Design under constraints. Explain what happened.
AoN challenges are not quiz streaks. They are compact engineering briefs that can grow from analytical work to MAJAL simulation, hardware and measurement.
100 MHz Low-Pass Filter
Design a passive 50 Ω network that satisfies passband and stopband constraints with as few reactive components as practical.
Passband
S21 > −1 dB below 80 MHz
Stopband
S21 < −20 dB at 200 MHz
Evidence
Calculation → MAJAL → optional physical measurement
Awards
Best overall, best measurement, best explanation, most elegant, best beginner solution
Formats
Competition without reducing engineering to one score.
Different challenge types reward different engineering behaviours and leave room for beginners, experimenters and advanced contributors.
Team Challenge
Split a larger system into matching, amplifier, filter, PCB and measurement roles to practice collaborative engineering.
Failure Lab
Diagnose a real mismatch between expected and measured behaviour before the root cause is revealed.
Research Challenge
Reproduce, extend or compare models from published work with transparent assumptions and evidence.