What is a biconical antenna used for?

What is a biconical antenna used for?

Biconical (or “bicon”) antennas are often used in electromagnetic interference (EMI) testing either for immunity testing, or emissions testing.

How do you make a biconical antenna?

DESIGN OF BICONNICAL ANTENNA The configuration of a biconical antenna fed by coaxial cable is shown in Fig. 1. The one length is l, cone top radius is 𝑙 · sin(𝛼/2) , cone bottom radius is the radius of the coaxial cable, flare angle between the two cones is Ψ . The upper and lower cones are symmetrical.

What is biconical horn antenna?

Biconical antennas (also known as Bowtie or Butterfly antennas) are broadband dipole antennas that are made up of two roughly conical conductive objects, nearly touching at their points. These antennas have dipole like characteristics, with a wider bandwidth achieved due to the double cone elements structure.

Who invented the bow tie antenna?

The well-known “bow-tie” antenna originally proposed by Lodge and later re-examined by Brown and Woodward exemplifies these benefits [17]. Similarly, Masters proposed an inverted triangular dipole (see Figure 11) [18].

Why Biconical antenna is wideband?

The antenna is suitable for operation over a wide band of frequencies. Wideband operation is possible because the truncated spherical cap reduces the reflections from the antenna structure by preventing the sudden termination of the cones.

What is bow tie antenna?

What Is a Bowtie Antenna? A bowtie antenna uses triangular elements instead of straight rods as the antenna elements. The triangular elements sticking out on both sides of the antenna resemble a bow tie, hence the name. The “wings” of the antenna flare out symmetrically on both sides of the supporting beam.

How do I increase the gain on my bowtie antenna?

In order to increase the bandwidth and gain of the bowtie antenna, an approach of using a Frequency Selective Surface is applied. To analyze the characteristics of FSS, a unit cell is designed as in Fig. 2a. The unit cell is symmetric to both x-axis and y-axis with dimensions of 5 mm × 5 mm.

What is the gain of a bow tie antenna?

When FSS is kept at 1 mm from the bowtie antenna, the structure resonates at tri-band frequencies at 6.5 GHz, 10.2 GHz, and 13.8 GHz yielding bandwidth of 2.0 GHz, 1.4 GHz, and 1.2 GHz, respectively. The gain obtained at each band is 0.6, 0.2, and 1.0, respectively.

Are fractal antennas still used?

Fractals have been used commercially in antennas since the 2010s. Their advantages are good multiband performance, wide bandwidth, and small area. The gain with small size results from constructive interference with multiple current maxima, afforded by the electrically long structure in a small area.