5 GHz Collinear Antenna

Intro: 5 GHz Collinear Antenna

5 Hz collinear antenna
This video is the start of many based around the design of 5 Hz antennas for the Wi-Fi spectrum.
The collinear antenna is an omnidirectional antenna much like the rubber duck dipole antenna. The main advantage of collinear antenna is its simple structure and relatively small dimensions.
This design is made up of three parts. The first is a ½ wave of 25.86mm. Second is a ¾ wave of 38.79mm. And the third is just shorter than a ¾ wave of 35.79 to reduce the capacitance effect as this antenna has no ground plane.

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    ChadT2

    3 years ago on Introduction

    If you pickup a piece of 5mm Diameter x 200mm Length of Copper rod from eBay you can use that to make permanent marks, I used a Dremel Tool, in and wind these all day long without ever having to use a caliper to measure with. When you use an SWR meter for 5 ghz they are amazingly perfect.