Radiation Resistance
Approximate values of radiation resistance for vertical antennas over perfectly conducting ground (A) and for […]
Approximate values of radiation resistance for vertical antennas over perfectly conducting ground (A) and for […]
Basic half-wave antennas. At A, dipole antenna. At B, foldeddipole antenna. At C, zepp antenna. […]
A quarter wavelength is related to frequency by the equation: Lft = 246v/fo where Lft […]
A small loop antenna with a capacitor for adjusting the resonant frequency. Any receiving or […]
End-fed λ/4 antennas, such as the ground plane, require low-loss RF ground systems in order […]
The power gain of a transmitting antenna is the ratio of the maximum effective radiated […]
A phased array uses two or more driven elements (radiators connected directly to the feed […]
Parasitic arrays are used at frequencies ranging from approximately 5 MHz into the microwave range […]
At ultrahigh frequencies (UHF) and microwave frequencies, high-gain antennas are reasonable in size because the […]
Antennas should never be placed in such a way that they can fall or blow […]