A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.
Discone antenna sheet metal.
Gra d220 144 440 900 1200mhz 2m 70cm 33cm 25cm mini discone multiband wideband mobile scanner antenna 38 19 inch.
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Rust free stainless steel is employed in major component parts making the antenna rust resistant and durable.
A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc.
Each of these broadband antennas has.
Figure 2 return loss of aor da3000 discone antenna.
The cone section below the disk will have the cone apex angle changed in a suite of tests.
Ed figure 5 shows the simulated.
The d3000n super discone antenna is an ultra wideband antenna covering amateur radio commercial 2 way cellular air traffic control and various utility frequency bands.
The disc and cone can be made from solid metal sheet but this would increase the windage i e.
These antennas include the bicone discone helix and oth ers.
This is the basic form for a 16 spoke discone antenna.
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Wind resistance or wind loading and its weight.
Gnec is only available to user s who are licensed from lawrence livermore national labs to use nec4.
This simplifies construction and reduces wind loading.
Sirio antenna sd2000n 100 mhz 2 ghz discone wide band antenna.
Small uhf forms may be constructed of sheet metal and thus exhibit the distinctive disk and cone.
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It consists of a top disc underneath which is a cone.
The aor da3000 uses 16 while the diamond.
At lower frequencies a sufficient number of metal wires or rods in a spoke configuration is often used to approximate a solid surface.
Sheet metal as illustrated in figure 1.
Although sometimes called a scanner antenna the discone antenna receives its name from its shape.
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This antenna is often implemented in a skeleton form.
At lower frequencies a sufficient number of metal wires or rods in a spoke.
A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.
Wire antennas assembled from expanded metal or even poultry netting.