Biconical antenna

A common subtype is the bowtie antenna, essentially a flattened version of the biconical design which is often used for short-range UHF television reception.

For an infinite antenna, the characteristic impedance at the point of connection is a function of the cone angle only and is independent of the frequency.

Practical antennas have finite length and a definite resonant frequency.

Log periodic dipole arrays, Yagi–Uda antennas, and reverberation chambers have shown to achieve much higher field strengths for the power input than a simple biconical antenna in an anechoic chamber.

However, when the goal is to fully characterize a modulated or impulse signal, rather than merely measuring peak and average spectrum energy content, a reverberation chamber is a poor choice for a test environment.