SMA SIM800, SIM900 GSM & GPRS Module AntennaTechnical SpecificationsAntenna Type: GSM / GPRS Quad-Band External AntennaFrequency Range: 850 MHz / 900 MHz / 1800 MHz / 1900 MHz (Quad-Band support)Supported Networks: 2G GSM and GPRS communicationGain: Typically 2 dBi to 3 dBiImpedance: 50 Ω nominalVSWR: ≤ 2.0 for efficient signal matchingPolarization: VerticalRadiation Pattern: Omni-directional (uniform coverage around the antenna)Maximum Power Handling: Up to 50 WattsConnector Type: RP-SMA Male with nut and washer (bulkhead mount)Cable Type: RG174 low-loss coaxial cableCable Length: Approximately 10 – 15 cmMounting Type: Screw-mount via RP-SMA bulkhead, suitable for enclosure or panel installationAntenna Length: 5 cmHousing Material: ABS plastic with a flexible rubberized coating for durabilityColor: BlackOperating Temperature Range: –40 °C to 85 °CStorage Temperature Range: –45 °C to 90 °CRelative Humidity: Up to 95 % non-condensingPower Supply: Passive (no external power required)Input Voltage: Not applicable (receives signal passively)Waterproof Rating: IP65 equivalent (depends on model version; resistant to humidity and dust)Electrical PerformanceReturn Loss: Better than –10 dB across GSM frequency bandsEfficiency: Typically above 70 % in open-air conditionsCable Attenuation (RG174): Approx. 0.5 dB per meter at 1.8 GHz (minimal due to short length)Bandwidth: Covers entire GSM/GPRS quad-band range without tuningResonance: Centered near 900 MHz and 1800 MHzMechanical CharacteristicsConnector Mounting Type: Bulkhead mount with washer and nut for secure fixingConnector Material: Brass with nickel plating for corrosion resistanceCable Jacket Material: PVC or Teflon, flexible and weather-resistantAntenna Body Type: Straight monopole typeWeight: Approx. 25 – 35 gramsInstallation and Mounting NotesMount the antenna vertically for the best signal strength.Ensure the antenna is placed at least 10 mm away from metallic surfaces to avoid detuning.If installed inside an enclosure, position it near an RF-transparent surface (plastic window or top cover).Avoid sharp bends in the cable to minimize signal loss.For maximum performance, route the RG174 cable away from high-frequency or high-current traces.ApplicationsGSM and GPRS modemsIoT communication devicesVehicle tracking systems (GPS/GSM combinations)Remote monitoring and telemetry equipmentSMS/voice-based control systemsHome automation modulesData logging and cloud-connected devices SKU: LKANT00001 Category: Antenna
