The 3DBI GSM/GPRS/3G PCB Antenna is a flat printed circuit board antenna that covers frequencies from 900 to 1500 MHz. PCB antenna means the radiating element is printed directly on a thin board — no coil, no metal rod. The 3dbi pcb antenna delivers a gain (signal amplification over a reference point) of 3 dBi, which gives noticeably better reception than the tiny chip antennas soldered directly onto GSM modules. It connects through an IPX13 (a small snap-on RF connector) and has a total length of 15cm, keeping it easy to fit inside enclosures.
The 3dbi gsm antenna works at 50 ohm impedance, which is the standard RF impedance for most GSM and GPRS modules. One non-obvious detail — PCB antennas are sensitive to nearby metal and ground planes. Placing this antenna flat against a metallic surface or right next to a battery will detune it and reduce gain noticeably. Keep at least 5mm clearance around the antenna edges. The operating temperature goes from -30°C up to +85°C, so field deployments in warm summers are not a concern. One limitation to keep in mind — at 900 to 1500 MHz, it does not cover 1800 or 1900 MHz bands used by some 4G networks.
The 3dbi 3G PCB Antenna pairs with SIM800L, SIM900A, SIM800C, and similar GSM modules through the IPX connector. building SMS alert systems and engineers prototyping IoT field devices both use it regularly. StemVolt provide, this antenna is well-suited for engineers embedding cellular connectivity into compact IoT products and custom GSM electronics builds.
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Features:
- 3dBi gain flat PCB antenna covers GSM GPRS and 3G bands
- IPX U.FL connector snaps directly onto SIM800 SIM900 module ports
- 15cm flexible body routes inside sealed product enclosure without protrusion
- 50 ohm impedance matched for all standard GSM module antenna inputs
- -30°C to +85°C range suits indoor and light industrial IoT builds
Technical specifications:
| Specification | Details |
|---|---|
| Connector Type | IPX (IPEX / U.FL) |
| Gain | 3 dBi (Typical) |
| Impedance | 50 Ω |
| Total Length | 15 cm |
| Frequency | 900 – 1500 MHz |
| Operating Temperature | -30°C to +85°C |
Applications:
- 3DBI GSM PCB Antenna used for SIM800 GPRS IoT node build
- College project uses 3dbi gsm antenna for GSM SMS alert system
- GPS tracker uses 3G PCB Antenna for embedded cellular data uplink
- Smart meter uses 3dbi pcb antenna for GPRS utility data reporting
- Industrial controller uses 3g gsm antenna for sealed enclosure
Package includes:
- 1 x 3DBI GSM/GPRS/3G PCB Antenna














Rajat Sarda –
Quick delivery service
Kavya Jhalani –
Good signal performance and reliable connectivity for GSM, GPRS, and 3G communication applications
Utkarsh Mundra –
Original product received
Anjali Chandak –
Received with bubble wrap packing and secure UPI payment process, quality feels excellent and technical support was very helpful.