Calculators

Frequency to Wavelength
  Calculates Wavelength (in millimeter, centimeter, meter, kilometer) from the Frequency (in GHz, MHz, KHz, Hz).

Wavelength to Frequency
  Calculates Frequency (in GHz, MHz, KHz, Hz) from Wavelength (in millimeter, centimeter, meter, kilometer).

Reflection Coefficient, VSWR, Return Loss, Power Reflected, Power Transmitted conversions
  All Reflection Coefficient related calculations could be performed here.

Friis Transmission Equation
  Calculates Power at the receiver antenna using the Friis Transmission Equation and free space path loss.

EIRP ERP Calculator
  Calculates Effective Istotropic Radiated Power and Effective Radiated Power, provided Input Power, Antenna Gain and Cable Loss.

dBW, dBm, watt, milliwatt conversions
  Calculates power expressed in dBW, dBm, watt, milliwatt.

Effective Antenna Aperture
  Calculates the effective aperture area of antenna provided gain and frequency/wavelength is known.

Antenna nearfield, farfield region
  Reactive nearfield, radiating nearfield (Fresnel) farfield (Fraunhofer) region.

Dipole Antenna Length Calculator \ Radiation Pattern
  Calculates length of wire dipole antenna and plots the normalized radiation pattern.

Microstrip Rectangular Patch Antenna Calculator
  Calculates dimensions of rectangular microstrip patch antenna, provided frequency, relative permittivity and height of the substrate. Output is length, width of patch, resonant input resistance.

Microstrip Circular Patch Antenna Calculator
  Calculates dimensions of circular microstrip patch antenna, provided frequency, relative permittivity and height of the substrate. Output is radius and effective radius of the circular patch.

Noise Temperature ↔ Noise Figure Calculator
  Calculates noise temperature from noise figure vice versa.

Noise Factor ↔ Noise Figure Calculator
  Calculates noise factor from noise figure vice versa.