Collinear Antenna Calculator

By 3G-Aerial

The collinear antenna, or Marconi-Franklin antenna, is an omnidirectional, high-gain antenna composed of in-phase half-wave dipoles aligned vertically. By using quarter-wave transmission line segments, it maximizes gain at a low horizon angle, outperforming a half-wave dipole. Adding segments increases gain but narrows bandwidth. A popular DIY version, the CoCo antenna, uses half-wave coaxial cable segments connected by non-radiating transmission lines. Built with stable velocity factor cables, a matching quarter-wave sleeve balun, and ferrite rings for attenuation, the antenna achieves performance comparable to commercial models.

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The title of the main category is Collinear and it deals mainly with Collinear antennas. The resource has been on our site since Friday Nov 8 2024, and it has been viewed 68 times. So far it received 1 votes for a total score of 4.00/10
Last updated: 2025-01-25

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