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BACKFIRE YAGI ANTENNA

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Radiation patterns and gain measurements on 1.0, 1.5, and 2.0 lambda backfire Yagi antennas are given. The backfire antenna was tested for two dipole feed locations, and variations in the diameters of the two planar reflectors forming the backfire cavity. The optimum dimensions of the three test antennas are tabulated. The frequency bandwidth of the backfire antenna is limited to several percent due to impedance matching. The backfire antenna should find application in broadside arrays where conventional endfire antennas are presently used.

screenshot_48.png

 

19680012807.pdf

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Posted

,,,a first simulation attempt, optimization follows...

screenshot_189.png

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Posted

Looks like you have a resonance , DEEP, at 2.8... try making the whole Yagi 1.16 times bigger...

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Posted

narrow band apparently 

Sin título.jpg

Sin título.png

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Posted

,,,yes, it seems so, the antenna is narrow band...!!!

screenshot_190.thumb.png.16be8d22a445339bbe88d8131c188dce.png

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Go To Topic Listing Antennas for 2.4 GHz band