Tired of dropped calls and slow data on your IoT gateway? The Antenova Opaca SR4L104 5G Antenna gives you a strong, stable link wherever you place your device. It is a tiny surface-mount antenna that works with 2G, 3G, 4G and 5G networks. If your current antenna cannot keep up, you will see frequent disconnects and lost telemetry. This part fixes that by delivering more signal strength from a compact board-mounted design.
Antenova Opaca SR4L104 5G Antenna
Many small devices struggle to find a reliable cellular signal, especially when they are installed inside metal enclosures or placed far from a tower. Weak reception leads to missed alerts, slower uploads and higher power consumption as the modem works harder. The Antenova Opaca SR4L104 solves this issue by offering wide-band coverage from 617 MHz to 7125 MHz and a gain of up to 7.5 dBi in a flat SMD package. With a 50 impedance and direct board connection, you get a clean, low-loss path that improves both speed and battery life.
Benefits
- Strong signal across many bands means fewer dropped connections and faster data transfer.
- Flat SMD design saves space on crowded PCBs and fits inside small devices.
- Direct board termination removes the need for extra connectors, lowering cost and installation time.
- Wide temperature range lets the antenna work in outdoor, industrial or automotive environments.
- High efficiency and up to 7.5 dBi gain improve battery life by reducing modem power draw.
Specifications:
| Model / Part Number |
SR4L104 |
| Antenna Family |
Opaca |
| Antenna Type |
SMD / PCB‑mounted cellular antenna |
| Supported Technologies |
GSM (2G), UMTS (3G), LTE (4G), 5G‑NR |
| Frequency Range |
~617 MHz to ~7125 MHz (broad multi‑band coverage) |
| Impedance |
50 Ω |
| Polarization |
Linear |
| Mounting Style |
Surface Mount Device (SMD) |
| Physical Size |
~38 mm × 10 mm × 3.3 mm |
| Operating Temperature |
–40 °C to +140 °C |
| Maximum Gain |
Up to ~7.5 dBi (varies by frequency band) |
| Efficiency |
~37 % to ~78 % depending on frequency |
| Connector / Termination |
Direct SMD connection (no external connector) |
| Typical Applications |
IoT gateways, cellular modems, routers, telematics, M2M, CCTV/4G‑5G uplink |
| Regulatory / Environmental |
RoHS compliant |
