Coupled resonator? I built a C-R antenna for 30, 17, and 12 when we
first got the WARC bands using 300 ohm open-wire line. Only the 30 m
wire was fed. It seemed to work well, on the rare occasions I could
find someone on the bands. The same technique can be used to expand the
BW of an 80 meter antenna although there are some side effects to be
dealt with.
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 3/1/2017 11:17 AM, Walter Underwood wrote:
You can also use close-spaced parallel elements that are resonant at slightly
different frequencies than the driven element. This is a different way to make
a broadband antenna. This design has a name, but it escapes me right now.
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
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