Dual Linear Polarization Corrugated Horn Antenna 20dBi Typ. Gain, 18-22GHz Frequency Range RM-DCGHA1822-20

The Corrugated Horn Antenna is a specialized microwave antenna featuring periodic corrugations (grooves) along its inner wall surface. These corrugations function as surface impedance matching elements, effectively suppressing transverse surface currents and enabling exceptional electromagnetic performance.

Key Technical Features:

• Ultra-Low Sidelobes: Typically below -30 dB through surface current control

• High Polarization Purity: Cross-polarization discrimination better than -40 dB

• Symmetrical Radiation Pattern: Nearly identical E- and H-plane beam patterns

• Stable Phase Center: Minimal phase center variation across frequency band

• Wide Bandwidth Capability: Typically operates at 1.5:1 frequency ratios

Primary Applications:

1. Satellite communication feed systems

2. Radio astronomy telescopes and receivers

3. High-precision metrology systems

4. Microwave imaging and remote sensing

5. High-performance radar systems

The corrugated structure enables this antenna to achieve performance characteristics unattainable by conventional smooth-wall horns, particularly in applications requiring precise wavefront control and minimal spurious radiation.