σ	Electrical Conductivity
ε	Complex Dielectric Permittivity
δe	Dissipation Factor
A	Unit Cross Sectional Area
c	Speed of light
μ0	Magnetic Constant
E	Electric field
|E|	Electric field strength inside the load
f	Frequency
FDR	Reflectometric Frequency Domain
L	Unit Length
MW	Microwave
P	Polarization
Pv	Energy developed per unit volume
R	Resistance
RF	Radio Frequency
SMA	Sub Miniature version A
SPR	Six-port reflectometer
tanσ	Loss Tangent
TDR	Time-Domain Reflectometry
TE	Transverse Electric
TM	Transverse Magnetic
tp	Travel time
VNA	Vector Network Analyzer
ε’	Dielectric Constant
ε’’	Loss Factor
ε0	Relative permittivity of vacuum
εabs	Absolute Permittivity
${\mathsf{\epsilon }}_{\infty }$	Dielectric constant at high frequencies
εσ´´	Inertia of Ionic Conductivity
εD´´	Inertia of Dipole molecules
εr	Relative Permittivity
εr*	Relative dielectric permittivity
Ω	Angular frequency
εs	Dielectric constant at low frequencies
τ	Relaxation Time