A ⁠ 5 / 4 ⁠-wave dipole antenna has a much lower but not purely resistive feedpoint impedance, which requires a matching network to the impedance of the transmission line. Its gain is about 3 dB greater than a half-wave dipole, the highest gain of any dipole of any similar length.

A half wave dipole antenna is an antenna constructed using a conductive tube or metallic element that has a length equal to the electrical half wavelength. The excitation to the half wave dipole is provided at the centre.

Learn about the Half Wave Dipole Antenna, its design, characteristics, and applications in antenna theory. Discover the principles and applications of the Half Wave Dipole Antenna in this comprehensive overview.

Aug 18, 2023 · The Half Wave Dipole last updated 18 August 2023. The half wave dipole is not only one of the most simple and common antennas, but it also forms a basic building block for many other types.

Many hams’ first choice of antenna is a half-wave dipole. But don’t be misled – just because they are easy to make doesn’t mean they don’t work well. In fact, a half-wave dipole will often outperform many compromise commercial multiband antennas.

Oct 7, 2024 · A half-wave dipole calculator simplifies the process by allowing you to input your desired frequency and instantly determine the optimal length of the antenna. Without this calculation, your antenna may be ineffective or suffer from poor signal transmission and reception.

antenna is based on any number of parameters: specifically, the frequency or band of frequencies, location, directivity, and intended power range. This paper discusses some of the more important aspects of the End Fed Half Wave (EFHW) dipole antenna. The frequency band is HF (40 meters), and the intended power is 100 watts.

Both these facts are a result of the electrically small nature of the antenna. A more practical dipole is the half-wave dipole (referring to the fact that it is λ/2 long). The main reason for this, as we will see, is that the half-wave dipole has a real input impedance at resonance which is close to common system impedances.

Almost any kind of antenna will radiate a signal, but the antenna is not good if it does not radiate enough signal or if it sends the signal off in the wrong direction. Our purpose here is to discuss only those features of radio wave transmission that have some bearing on the installation and maintenance of a high-frequency (HF) antenna system.

Half-wave dipole antennas are among the most common antenna topologies. They are simple to design and fabricate, and offer a rotationally symmetric radiation pattern with very clean linear polarization. They typically have a narrowband response.