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RF Planning

Antenna Tilt Calculator

Calculate optimal antenna tilt angles for coverage optimization in cellular networks, reducing interference and maximizing efficiency.

Site Configuration

Parameters

Typical: 25-40m
m
Target
km
ISD
km

Tilt Control

2°
6°

Downtilt Engineering

Technical Reference & Best Practices

What is Downtilt?

Downtilt is the angle by which an antenna's main beam is directed below the horizon. It's used to confine cell coverage to a target area and reduce interference to neighboring cells.

Mechanical vs Electrical

  • Mechanical: Physical adjustment. Affects the entire pattern including side lobes.

  • Electrical: Electronic phase-shifting. Preserves pattern symmetry and minimizes interference.

Reference Scenarios

ScenarioHeightTypical Tilt
Urban Macro25-35m6-12°
Urban Micro10-15m3-6°
Rural Macro35-50m2-4°
θopt = arctan(h / d)
Ref: 3GPP TR 38.901 / TR 36.814

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