Discone Antenna Sheet Metal

Figure 2 return loss of aor da3000 discone antenna.

Discone antenna sheet metal.

A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. Get it as soon as thu sep 17. 4 8 out of 5 stars 22. Gra d220 144 440 900 1200mhz 2m 70cm 33cm 25cm mini discone multiband wideband mobile scanner antenna 38 19 inch.

It consists of a top disc underneath which is a cone. Each of these broadband antennas has. Wire antennas assembled from expanded metal or even poultry netting. Small uhf forms may be constructed of sheet metal and thus exhibit the distinctive disk and cone.

Ed figure 5 shows the simulated. Figure 3 return loss of radioshack 20 043 discone antenna. Although sometimes called a scanner antenna the discone antenna receives its name from its shape. This antenna is often implemented in a skeleton form.

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. Sirio antenna sd2000n 100 mhz 2 ghz discone wide band antenna. A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi. Rust free stainless steel is employed in major component parts making the antenna rust resistant and durable.

The disc and cone can be made from solid metal sheet but this would increase the windage i e. Free shipping by amazon. The cone section below the disk will have the cone apex angle changed in a suite of tests. This is the basic form for a 16 spoke discone antenna.

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. This simplifies construction and reduces wind loading. A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.

Jan feb 2007 39 figure 7 wire table of an eznec discone model. When using rods at least eight should be used. Wind resistance or wind loading and its weight. The aor da3000 uses 16 while the diamond.

These antennas include the bicone discone helix and oth ers.