Antennas and Transmission Lines

Antennas and Transmission Lines The transmitter that produces RF1 energy for the antenna is usually located some distance from the antenna terminals
post 06 Feb 2024
Antennas and Transmission Lines

Antennas theory Links


Polarization antenna
Polarization or Polarisation for our British friends is one of the fundamental characteristics of any antenna. First we'll need to understand polarization of plane waves

Slotted Waveguide Antennas
Slotted antenna arrays used with waveguides are a popular antenna in navigation, radar and other high-frequency systems

The Half-Wave Dipole Antenna
The half-wave dipole antenna is just a special case of the dipole antenna, but its important enough that it will have its own section

The Short Dipole Antenna
The short dipole antenna is the simplest of all antennas. It is simply an open-circuited wire, fed at its center


Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band

Rx antennas 4Square Rx Vertical Array

Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m

A simple SWR Meter is to be used at HF

A simple SWR Meter is to be used at HF An SWR meter provides information about how well matched is your antenna with the transmitter and how well power is being radiated