The Singer 93491-2 is a wideband conical log spiral antenna engineered for UHF/SHF applications spanning 1 GHz to 10 GHz. Designed for calibrations, EMC measurements, and surveillance operations, this antenna delivers consistent right-hand circular polarization with directional radiation patterns. The 50 Ω impedance and 1.6:1 VSWR ensure efficient integration into measurement systems. Built by Stoddard Electro Systems in the USA, the antenna accommodates continuous power levels to 50 Watts with peak power handling of 100 Watts, making it suitable for both receiving and transmitting applications across its operating band.
Technical Specifications
• Frequency Range: 1 GHz – 10 GHz
• Impedance: 50 Ω
• VSWR: 1.6:1
• Polarization: Circular (right-hand)
• Radiation Pattern: Directional
• Continuous Power Rating: 50 Watts
• Peak Power Capability: 100 Watts
• Connector: N-type (female)
– Key Features
• Polyester cone construction in grey/blue finish
• Compact geometry: 375 mm length, 130 mm maximum diameter
• Lightweight design at 500 grams
• Integrated tripod mounting provision via rear-mounted hole
• Wideband performance across full decade bandwidth
– Typical Applications
• RF calibration procedures
• Electromagnetic compatibility (EMC) testing
• Surveillance and monitoring systems
• Wideband antenna measurements
– Compatibility & Integration
The Singer 93491-2 functions as a complementary antenna to the Singer 93490-1, which covers 200 MHz to 1 GHz. Together, these units provide continuous coverage from 200 MHz through 10 GHz, enabling comprehensive frequency range characterization in measurement and compliance applications.
