Directionality
Vertical wire
Omnidirectional
Frequency
The number of cycles per second
Element
the conductive component of your antenna that transmits and receives
This antenna consists of two 1/4 wavelength elements and radiates equally in all directions
Half dipole
Bi-directional
Amplitude
The height of the wave; signal strength
Insulator
Prevents support portions of your antenna from interacting with conductive elements
This is one of the simplest FEA's to make and consists of a single element that is at minimum 1/2 wavelength
Longwire
Sloping V
Unidirectional
Attenuation
Loss of power
Resistor
Redirects energy along your element in order to dictate directionality
This antenna's scheme focuses on the lowest, center, and highest frequency in your network
Multi-frequency dipole
Square-loop
Omnidirectional
Propagation
how radio waves react to the environment; the transmission pattern
Reflector/Director
A conductive material placed around the antenna in hopes of redirecting energy onto your element
This antenna consists of two elements. One being vertically oriented for the use of ground waves, and the other being horizontal for the use of sky waves.
Inverted L
Longwire
Bi-directional, unidirectional when terminated with a resistor
Wavelength
The physical length of one wave cycle
Balun
Feeds a balanced load with an unbalanced line, installed to prevent unwanted RF energy from interacting with your radio
This antenna is omnidirectional, utilizes NVIS, and is typically cut to a full wavelength
Box loop