I just want a little privacy-
sad Shrek (or something similar to that thing to avoid me a copyright
problem). So I am. I decided to install plastic net for clementine
flowers at my desk on the backyard. The clementine flowers are
perfect do masking me when preparing BBQ, reading a book or just
do experiments with antennas and home- brew radios. However it
seems to me no sense to install just a net for clementine flowers
without putting an antenna to this one. The net with flowers should
perfect masking an antenna on it. The sizes of the net allow install
there just antenna for 10 or 6 meter Band. I have chosen an antenna
for 6 meters.
So the band for new antenna was
defined. But design of the antenna was still unclear. MMANA helped
me. With this free software I simulated an antenna that fit my
flower net in dimension and satisfied me for electrical parameters. Figure 1 shows design of the antenna. Figure 2
shows Z of the antenna at 3 meters height above the real ground,
the height what the antenna was installed.
Figure 3 shows SWR of the antenna at 3 meters height above the real ground. Figure 4
shows DD of the antenna at 3 meters height above the real ground.
The antenna has rather broad pass band so I called it a Broadband
50 MHz antenna.
When schematic of the antenna
was created, net for flowers was bought, there were arisen some
questions about stuff for building of the antenna. I have a roll
of black insulated stranded 18- AWG wire that was used for electrical
purposes. This wire would be going for forming antenna.
Another question was- what should I use for the central
insulator. I have a big junk box with some stuff related to radio
and electronics. I try to keep lots things with that surplus because
newer knows what you need in the future for your home- brew project.
Inside of the box I found a caplug from
forgotten connector. The cuplug was ideal form for central insulator. Bleeding resistor
and antenna wires with coaxial cable was placed inside of the
cuplug then this one was filled with an epoxy.