Types And Features of Radomes

Radome

A radome is a structure or enclosure designed for antenna and associated electronics protection from any environment that could cause damage, including rain, snow, strong winds, etc. A radome contains a protective shell that boosts an antenna systems’ pointing accuracy. The cover offsets adverse effects of UV degradation, wind load, and snow and ice build-up. The structures attempt to prolong the ability of this system to work under hostile conditions and create a safe working environment.

Types Of Radomes

Radomes exist in different categories according to design, capabilities, and wall architecture.

Type 1: these are radomes suitable for low-frequency use at 2GHz or below

Type 2: a kind of radome fit for directional guidance and has directional accuracy and requirements.

Type 3: the type 3 radomes are appropriate for the narrowband application and have less than 10% operational bandwidth.

Type 4: these radomes support multiple frequency bands functioning at two or above narrow frequency bands.

Type 5: they are broadband radomes providing an operational bandwidth falling between a range of 0.100GHz to 0.667GHz.

Type 6: these radomes are very broadband and provide a functioning bandwidth of more than 0.667GHz

According to the wall architecture, the following types are useful in grouping radomes.

  • Solid wall
  • Thin wall monolithic
  • Sandwich multi-layered wall
  • Multi-layered wall

Features Of Radomes

The classification of radome features includes electrical properties and mechanical properties. Electrical features

The electrical-performance features are quantified based on:

  • Transmission loss
  • Beam deflection
  • Pattern distortion
  • Deflected power
  • Mechanical features

Environmental factors such as wind, hail, snow, ice, among others, determine the mechanical design requirement of a radome. Some of the essential mechanical requirements that radome manufacturers adhere to when designing radomes include:

  • Strength or sustaining the handling loads
  • Stiffness for providing stability
  • Temperature resistance for tolerating extreme conditions
  • Moisture absorption resistance for keeping the material property constant
  • Resistance to abrasion and erosion to decrease the effects of environmental conditions such as hailstorms.