DESCRIPTION:

The MVG SH400 is a precision dual-ridge horn antenna designed for broadband RF measurement applications covering the frequency range from 400 MHz to 6 GHz. Developed by Microwave Vision Group (MVG), the SH400 is widely used as a reference antenna in antenna measurement facilities, EMC laboratories, far-field test ranges, radar development environments, and RF research facilities.

The antenna features a unique dual-ridge horn design that provides stable gain characteristics, low VSWR, and smooth radiation patterns across its wide operating bandwidth. The design minimizes unwanted higher-order mode generation while maintaining consistent performance throughout the frequency range.

The SH400 has been used as a reference antenna in international antenna measurement facility comparison campaigns due to its repeatable performance and highly stable radiation characteristics. Precision mechanical construction, accurate polarization alignment features, and robust RF connectivity make it suitable for both laboratory and production measurement environments.

Its lightweight yet rigid construction allows convenient installation on antenna positioners, compact ranges, near-field systems, and outdoor test ranges. The antenna is commonly used for gain calibration, antenna pattern measurements, EMC validation, reflector feed applications, and RF system verification.

Technical Specifications

• Model: SH400
• Antenna type: Dual-ridge horn antenna
• Frequency range: 0.4 GHz to 6.0 GHz
• Gain: 6 dBi to 15 dBi
• VSWR: < 1.9
• Return loss: < -10 dB
• Polarization: Single linear
• Cross-polar discrimination: > 45 dB
• Impedance: 50 ohm
• Precision coaxial connector
• Integrated coaxial transition
• Precision polarization alignment pin
• Precision machined construction
• Optional outdoor radome available
• Designed for reference antenna applications
• Weight: approximately 4.1 kg

Key Features

• Broadband coverage from 400 MHz to 6 GHz
• Stable gain performance across frequency range
• Low VSWR design
• High polarization purity
• Precision reference antenna construction
• Suitable for antenna gain calibration
• Suitable for EMC measurements
• Suitable for far-field test ranges
• Suitable for near-field measurement systems
• Suitable for radar and RF development
• Lightweight mechanical design
• High measurement repeatability
• Precision polarization alignment
• Optional outdoor radome configuration
• Used in international antenna measurement facilities