Copper GSM/GPRS Spring Antenna | Thickened Copper Spiral Coil Antenna for SIM800L, SIM7670G & IoT PCB Boards

Product Description

The Copper GSM/GPRS Spring Antenna is a high-efficiency spiral coil antenna designed for GSM, GPRS, and IoT communication modules.
Made of thickened pure copper, it offers excellent conductivity, stable performance, and strong signal gain, making it ideal for SIM800L, SIM900, SIM7670G, and other wireless boards that require reliable GSM signal transmission.

This compact helical antenna is perfect for direct soldering onto mainboards or PCB pads, providing a cost-effective and space-saving antenna solution for embedded communication devices.

Key Features

• Type: Copper GSM/GPRS Helical Spring Antenna

• Material: Thickened pure copper (high conductivity)

• Frequency Range: 850 MHz – 1900 MHz (GSM/GPRS compatible)

• Gain: 2–3 dBi (typical)

• Impedance: 50 Ω

• VSWR: ≤ 1.5

• Polarization: Vertical

• Connector Type: Solder pad (for direct mainboard welding)

• Dimensions:

  • Coil Diameter: ~5 mm

  • Length: ~20–25 mm

• Operating Voltage: Passive (no power required)

• Compatibility: SIM800L, SIM900, SIM7670G, A6, A7, A9, ESP32, and other GSM/GPRS modules

• Operating Temperature: –40 °C to +85 °C

Advantages

• Made of high-purity copper for superior conductivity and minimal signal loss.

• Compact spring-style design — ideal for small GSM/IoT PCB integrations.

• Easy to solder directly onto GSM mainboards or PCB pads.

• Provides stable GSM/GPRS signal reception and transmission.

• Compatible with a wide range of SIMCOM and ESP32 GSM modules.

• Suitable for DIY IoT, smart home, and telemetry projects.

Applications

• GSM and GPRS communication devices

• IoT wireless transmitters and receivers

• SIM800L/SIM900-based Arduino projects

• GPS tracking and telemetry systems

• Smart home and automation controllers

• Embedded PCB communication systems