S-Band Helical Antenna

Product catalog summary

Overview
The S-Band Helical Antenna H2225R8 by STT-SystemTechnik GmbH is a circularly polarized, directional antenna designed for use in the frequency range of 2200 to 2500 MHz. It is compact, lightweight, and made in Germany, suitable for harsh environmental conditions.

Key Features

Circular polarization with right-hand circular (RHC) orientation.
Directional characteristic with a 70° half-power beamwidth (HPBW).
Gain varies from 7.5 dBic at 2200 MHz to 8.5 dBic at 2500 MHz.
Front to back ratio greater than 20 dB.
Power rating of 10 watts continuous wave (CW).
Impedance of 50 Ω with a VSWR better than 1.5:1, typically 1.2.

Mechanical Specifications

Connector type: SMA female.
Weight: ≤ 140 grams.
Dimensions: Length of 89 mm without connector, reflector diameter of 100 mm, radome diameter of 54 mm.
Mounting: 6 holes, each with a diameter of 4 mm.
Color: Radome is white, and the reflector is black.

Environmental Specifications

Operational temperature range from -40°C to +85°C.
Can withstand wind velocities up to 180 km/h.

Additional Information
The antenna is enclosed in a radome to protect against ice, snow, high winds, saltwater, oil, and common chemical fumes. Specifications are subject to change without notice.

Catalog excerpts

S-Band Helical Antenna H2225R8 Highlights * Circularly polarized Antenna * Directional characteristic with 70° HPBW * 8 dBic Gain * Compact size and low weight * Frequency Range 2200 to 2500 MHz * 10 watts C W * Made in Germany

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The helical antenna model H2225R8 is a directional antenna, designed for applications in the frequency range form 2200 MHz to 2500 MHz. This rugged, superior constructed circular antenna is enclosed in a radome. It is designed to withstand ice, snow, high winds and most severe saltwater, oil and most common chemical fumes. Electrical Specifications Frequency Range Polarization Gain Coverage (HPBW) Front to Back Ratio Power Rating Impedance VSWR 2200 MHz to 2500 MHz RHC – right hand circular 7,5 dBic at 2200 MHz 8,0 dBic at 2350 MHz 8,5 dBic at 2500 MHz ±35° at 2350 MHz/AZ and ELEV >20 dB 10 Watts...

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