GEPRC SOMA 3.3G Directional Flat-Panel Antenna RHCP 3.0-3.5GHz 17dBi SMA 1/4 Mount
GEPRC SOMA 3.3G Directional Flat-Panel Antenna RHCP 3.0-3.5GHz 17dBi SMA 1/4 Mount
GEPRC
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Overview
The GEPRC SOMA 3.3G Directional Flat-Panel Antenna is a directional flat-panel antenna built with a dual-layer PCB RF design for stable signal reception and extended transmission range. It features a compact, ultra-thin structure, a 1/4 aluminum alloy base for bracket/tripod compatibility, and a high-quality SMA connector for improved transmission efficiency.
Key Features
- Compact size with superior gain up to 17dBi
- Smooth, ultra-thin design
- Dual-layer PCB antenna structure
- Low VSWR with high gain (Avg. SWR < 1.47)
- 1/4 mount base (aluminum alloy)
- High-quality SMA connector (external thread, internal hole)
- Each antenna is tested with a spectrum analyzer to verify VSWR compliance
For bracket compatibility or installation questions, contact support@rcdrone.top or visit https://rcdrone.top/.
Specifications
| Model | GEPRC SOMA 3.3G Directional Patch Antenna |
| Center Frequency | 3.25GHz |
| Bandwidth | 3.0GHz~3.5GHz |
| Polarization | RHCP |
| Avg. Gain | 17dBi |
| Axial Ratio | <= 3 |
| Avg. SWR | < 1.47 |
| Radiation Efficiency | Avg. 85% |
| Cross Polarization Suppression | -25dB |
| Beamwidth | 32deg @ 3dB (H/V) |
| Overall Dimension | 203.5mm x 203.5mm x 20mm |
| Weight | 293g |
| Enclosure Material | ABS |
| Connector Type | SMA (external thread, internal hole) |
| Coax Cable Length | 400mm |
Antenna Parameter Diagram (Measured Points)
| SWR parameter diagram | |
| 3.0000000 GHz | 1.6902 |
| 3.1000000 GHz | 1.3017 |
| 3.2000000 GHz | 1.1820 |
| 3.3000000 GHz | 1.3256 |
| 3.4000000 GHz | 1.5575 |
| 3.5000000 GHz | 1.6608 |
| Return loss diagram | |
| 3.0000000 GHz | -11.914 dB |
| 3.1000000 GHz | -17.749 dB |
| 3.2000000 GHz | -21.428 dB |
| 3.3000000 GHz | -16.988 dB |
| 3.4000000 GHz | -13.197 dB |
| 3.5000000 GHz | -12.152 dB |
| Smith chart | |||
| 3.0000000 GHz | 62.728 Ω | 26.578 Ω | 1.4100 nH |
| 3.1000000 GHz | 61.391 Ω | 9.1639 Ω | 470.48 pH |
| 3.2000000 GHz | 52.329 Ω | 8.3355 Ω | 414.57 pH |
| 3.3000000 GHz | 45.991 Ω | 13.124 Ω | 632.97 pH |
| 3.4000000 GHz | 50.005 Ω | 22.377 Ω | 1.0475 nH |
| 3.5000000 GHz | 62.376 Ω | 25.672 Ω | 1.1674 nH |
What’s Included
- 1 x SOMA 3.3G Directional Patch Antenna
Applications
- Directional signal reception and transmission range extension
- Fixed installations using 1/4 mount brackets/tripods
Details
The GEPRC SOMA 3.3G directional flat-panel antenna pairs a compact design with a 1/4 mount and low VSWR, with gain up to 17dBi.
The GEPRC SOMA flat-panel antenna uses a dual-layer PCB structure inside a slim, directional panel housing.
The GEPRC SOMA flat-panel antenna mounts easily on a tripod for stable ground-station placement and straightforward aiming.
GEPRC SOMA 3.3G directional patch antenna specs list a 3.25GHz center frequency, RHCP polarization, 17dBi average gain, and an SMA connector.
GEPRC SOMA 3.3G antenna SWR and return loss are plotted across the 3.0–3.5 GHz band to help verify match and signal performance.
Smith chart impedance plot covers 3.0–3.5 GHz to help verify matching for the GEPRC SOMA 3.3G directional flat-panel antenna.
The GEPRC SOMA flat-panel antenna measures 203.5 × 203.5 mm, is about 20 mm thick, and includes a 400 mm coax cable for flexible mounting.
GEPRC SOMA 3.3G directional flat-panel antenna features an RHCP connector and is labeled for 3000–3500MHz use.
The GEPRC SOMA 3.3G flat-panel antenna is labeled 3000–3500MHz and uses an RHCP connector with a rear mounting bracket for fixed aiming.
The GEPRC SOMA directional flat-panel antenna includes a long coax lead to help position the panel where you need it.
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