Wirelobe: Antenna Modeling
Tools
Offline antenna modeling with SWR sweeps, a Smith chart and wire cut lengths.
- Downloads
- 1+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Nov 8
- 2026 · v1.0.3
Screenshots
About Wirelobe: Antenna Modeling
Wirelobe is an offline antenna calculator for amateur radio. Use antenna modeling to explore how wire geometry, height and feed arrangements affect a planned antenna before cutting wire.
Start with a dipole, inverted-V, end-fed half-wave, vertical with radials, loop or Yagi antenna. Edit wires, dimensions and feed points, then calculate with an independently developed thin-wire method-of-moments solver. Use the dipole calculator as a starting point and refine your model as the design changes.
Follow an SWR sweep across the band, inspect resonance and read complex impedance on the Smith chart. Explore the radiation pattern in azimuth and elevation, with estimated gain in dBi, front-to-back ratio and take-off angle. Low SWR alone does not establish radiation performance.
Tune a dimension to resonance, inspect cut lengths and compare saved variants. Include RLC loads, a feedline or an ideal impedance transformer. Choose free space, an ideal conducting plane or a real-ground approximation, with the model assumptions kept visible.
Import supported wire geometry from .nec and .maa files; export supported models to .nec. Save projects and backups as JSON, sweep data as CSV and a dimensioned PDF build sheet for reference at the bench. File support is limited to the documented subset.
Keep your antenna modeling workflow with your projects: this antenna calculator works on your device without an account. Projects stay on the phone unless you choose to export or share them.
Results are estimates from a thin-wire method-of-moments model and the geometry you enter. Real antennas are affected by ground, nearby objects, feed lines, insulation and construction. Measure and adjust your antenna before use. The app does not check safety or legal compliance.
Never put antennas, masts or wires near power lines. Contact can kill. Installation, masts, grounding and lightning protection are outside this app — follow local electrical and building codes and use qualified help.
Free. No ads, no tracking, no account.
Start with a dipole, inverted-V, end-fed half-wave, vertical with radials, loop or Yagi antenna. Edit wires, dimensions and feed points, then calculate with an independently developed thin-wire method-of-moments solver. Use the dipole calculator as a starting point and refine your model as the design changes.
Follow an SWR sweep across the band, inspect resonance and read complex impedance on the Smith chart. Explore the radiation pattern in azimuth and elevation, with estimated gain in dBi, front-to-back ratio and take-off angle. Low SWR alone does not establish radiation performance.
Tune a dimension to resonance, inspect cut lengths and compare saved variants. Include RLC loads, a feedline or an ideal impedance transformer. Choose free space, an ideal conducting plane or a real-ground approximation, with the model assumptions kept visible.
Import supported wire geometry from .nec and .maa files; export supported models to .nec. Save projects and backups as JSON, sweep data as CSV and a dimensioned PDF build sheet for reference at the bench. File support is limited to the documented subset.
Keep your antenna modeling workflow with your projects: this antenna calculator works on your device without an account. Projects stay on the phone unless you choose to export or share them.
Results are estimates from a thin-wire method-of-moments model and the geometry you enter. Real antennas are affected by ground, nearby objects, feed lines, insulation and construction. Measure and adjust your antenna before use. The app does not check safety or legal compliance.
Never put antennas, masts or wires near power lines. Contact can kill. Installation, masts, grounding and lightning protection are outside this app — follow local electrical and building codes and use qualified help.
Free. No ads, no tracking, no account.
What’s new
Version 1.0.3 · Updated November 8, 2026
First taps on the opening screen now register right away.