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Whatever happened to the CFA?

Remember way back when, perhaps in high school or college, you met this really cool person who seemed to be wonderful in every way? Yeah, then you got to know them a little better and, well, those first impressions changed a little bit.

Crossed Field Antenna, Courtesy of Wikipedia

Crossed Field Antenna, Courtesy of Wikipedia

The Crossed Field Antenna (CFA) sort of reminds me of my first prom date.  There was a lot of promise there, but plans fell through.

From a 1999 Radio World article:

Imagine an AM antenna one–fiftieth of a wavelength long, that needs no radial ground system, occupies a small parcel of land, produces little or no RFI (Radio Frequency Interference), has great bandwidth and performs better than a full–sized vertical radiator.

This potential new antenna was all the rage during the early 00’s or whatever you call that decade.  I remember thinking to myself; I will believe it when I see the test results.  At one point, there was a battery of tests run in the installation in Egypt and China.  The test results are spotty at best, however, none of these installation performed up to expectations.  While it looks like a cool idea, and it would have been great to see it succeed, it seems that sheer will power alone will not make a particular system work outside of the laws of physics.  There are a few of these still in operation out in the wild, mostly in Egypt.

Axiom


A pessimist sees the glass as half empty. An optimist sees the glass as half full. The engineer sees the glass as twice the size it needs to be.

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~Benjamin Franklin

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~Rudyard Kipling

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...radio was discovered, and not invented, and that these frequencies and principles were always in existence long before man was aware of them. Therefore, no one owns them. They are there as free as sunlight, which is a higher frequency form of the same energy.
~Alan Weiner

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