Enhanced performance and efficiency in signal transmission
CIMERA® radomes are engineered for optimal signal quality with minimal loss. We combine advanced materials, precise manufacturing, and EM expertise so your antenna operates at peak efficiency.
Advanced Materials for Superior Performance
Sandwich radomes use multilayer stack-ups (outer skin, core, inner skin). Outer/inner skins provide durability and dimensional stability; low-εr, low-tanδ cores add stiffness with minimal added loss.
Structure of Sandwich Radomes
Outer skin: first barrier against UV, rain, wind; typically fiberglass for strength and durability.
Core: foam or honeycomb chosen for low dielectric constant and high strength-to-weight ratio, maintaining stiffness while keeping RF loss low.
Inner skin: protects internal components and supports rigidity; often symmetric with the outer skin for balanced mechanical behavior.
Advantages of Sandwich Radomes
Optimal dielectric properties: careful selection of εr and tanδ minimizes attenuation and reflection.
High strength-to-weight ratio: lightweight cores with strong skins reduce mass without sacrificing stiffness—ideal for aerospace and marine.
Enhanced structural integrity: multilayer construction withstands wind, impacts, and mechanical loads.
Superior environmental resistance: resists UV, moisture, and temperature extremes.
Customization and flexibility: layer materials and thicknesses are tuned to application-specific requirements.
Acceptance Criteria (Signal Transmission)
- Insertion loss: ≤ 0.3 dB across specified band (example target; project-specific).
- Return loss (|S11|): ≤ −20 dB typical, with notches flagged for critical channels.
- Group delay ripple: within tolerance for systems sensitive to phase.
- Polarization purity: no significant depolarization introduced by wall or geometry.
- Thickness uniformity: measured at multiple points; variation kept within design window.
Material Selection Checklist (Sample)
- Frequency band(s) and bandwidth requirements.
- Target insertion loss and return loss.
- Candidate εr and tanδ ranges (skins and core).
- Mechanical loads (wind, shock, vibration).
- Environment (UV, humidity, salt, temperature range).
- Surface finish and coating needs (anti-ice, anti-fouling, anti-static).
- Cost and availability; lead time
- Regulatory or customer standards to meet (flammability, corrosion).
- Branding/marking requirements.
