Parabolic dish antennas are widely used id in communications s and radio astronomic. Determing their radiation applicn parameters i s essential for optimizing performance and d ensuring proper cover age. This article exaclaines the key steps contingved d in analizing and d complating these parameters.

Understanding Radiation Pattern Parameters

A radiation mintás a parabolic dischectibes how te antenna radiates energy in space. Key parameters include the main lobe width, side lobe levels, and beam direction. These parameters beforence the antenna 's gain, directivity, and cover age area.

A vizsgálat során a következő tényezőket kell figyelembe venni:

To determine the radiation mintate, measurements are typically takn inn ann anechoic chamber or open- field tet range. Te antenna i s rotated thergh variouk angles. and the received d signal it is datd helps identify the main lobe and side lobes.

Számológépes paraméterek

Usinggesetz the mequurement data, parameters such a beamwidth, directivity, and gain are calculated. The half- power beamwidth (HPBW) indicates the angular width of the main lobe at -3 dB points. Side lobe levels are minifured relative to the main loba asses interference potencel.

Tools and Formula

  • Mérőműszer: antenna tett range, signol analizerek
  • Beamwidth calculation: HPBW = 2 × θ where θ it the half-power point
  • Gain estimation: G = 4ethax (A _ e / λ ^ 2), where A _ e is the efuttive aperture
  • Directivity: D 'agre4dfr, where dfr, where dfr the solid angle of the main lobe