antenna theory - How to calculate single-stub match (general case)? - Amateur Radio Stack Exchange
Log‑Periodic Dipole Array Calculator
Single-stub matching examples
Quick SWR Calculator for Vertical and Dipole Ham Radio Antennas | DX Commander - Amateur Radio - Ham Radio
Single-stub matching examples
AA3RL Transmission Line Calculator
antenna theory - How to calculate single-stub match (general case)? - Amateur Radio Stack Exchange
West Mountain Radio - Extended Double Zepp Antenna Calculator
PDF] Numerical Calculation and Design of Variant Topologies of Printed Dipole Antennas | Semantic Scholar
easy quad calculator enter center frequency to get a quad antenna size. This resource is listed under Antennas/Antenna Calculators | Antenna, Antennas, Quad
J POLE ANTENNA DESIGN CALCULATOR by K4ABT
Antenna Design Calculators
Slim Jim and J Pole calculator – M0UKD – Amateur Radio Blog