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More commercial small-space antennas, although this is definitely from the wackier end of the experimental radio spectrum, and nobody agrees with *their* explanation of how they work. (Don't miss the paper that mentions in passing that they think they should get a Nobel prize in physics for the design!)
to aerial amateur eh hf radio small-aerial ... on 09 January 2010
Isotron Antennas - Low Profile Limited and Restricted Space Antennas for HF
Commercial HF antennas of unusual design. They get good reviews, although people can't agree on how they work. Pretty, but expensive and not very weatherproof.
to aerial amateur hf isotron radio small-aerial ... on 09 January 2010
Firestik Antenna Company Home Page
Neat (and reasonably cheap) aerials that are essentially a loading coil wound onto a fibreglass stick.
CARC Newsletter: The PA0RDT Active Antenna
Neat "sampling" antenna for lower frequencies that uses a length of circuit board as a whip with a simple amplifier connected directly to it.
to aerial antenna electronics ham miniwhip radio ... on 03 October 2009
Some antennas for MURS, 2-meters, 70 cm, and UHF-TV
From the author of jed.
Excellent technical stuff about different types of aerials.
Yup, that's about the simplest 2m dipole you can make -- no balun, even. Built one out of 1960s-vintage Rediffusion catenary wire. It works.
to aerial antenna electronics radio ... on 17 September 2009
A very pretty quad 2m/70cm antenna -- and some interesting mods to PMR radios.
to aerial antenna electronics ham radio ... on 16 September 2009
Featuring a neat 2m/70cm antenna made entirely from RG-58 coax.
to aerial antenna electronics ham radio ... on 16 September 2009
Aerial design, and serious in-car amateur radio.
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tasty by Adam Sampson.