Introduction
This manual provides comprehensive instructions for the Usmile Triple Feed High Gain Pagoda Patch Antenna. Designed for 5.8GHz FPV applications, this antenna offers high gain and directional performance, suitable for RC FPV racing and use with various FPV goggles. Please read this manual thoroughly before use to ensure proper setup and optimal performance.
Product Features
- High Gain: 9.4dBi antenna gain for extended range and improved signal reception.
- Wide Bandwidth: Operates effectively across 5.47 - 6.13GHz (660 MHz bandwidth).
- Selectable Polarization: Supports both Left-Hand Circularly Polarized (LHCP) and Right-Hand Circularly Polarized (RHCP) configurations.
- Low VSWR: Voltage Standing Wave Ratio (VSWR) less than 1.22 for efficient power transfer.
- Compact Design: Comes with a compact storage box for portability and protection.
- Compatibility: Suitable for FPV goggles such as Skyzone 02s, Eachine EV800D, EV200D, EV100, VR006, FatShark HDO, HD3, and Aomway Commander.
Setup
1. Connecting the Antenna
Image: The Triple Feed Pagoda Patch Antenna shown with its connecting cable, ready for installation.
The antenna connects to your FPV goggles or receiver via an SMA connector. Ensure the connector is securely fastened to prevent signal loss. The antenna is designed to be flexible, allowing for easy positioning.
2. Polarization Selection (LHCP/RHCP)
Image: Rear view of the antenna, highlighting the LHCP (Left-Hand Circularly Polarized) and RHCP (Right-Hand Circularly Polarized) connection points.
This antenna supports both LHCP and RHCP polarization. Connect your FPV system's antenna cable to the appropriate connector (LHCP or RHCP) on the patch antenna to match the polarization of your video transmitter (VTX) antenna. It is crucial to match the polarization for optimal signal quality and range.
Important: Do not connect both RX (receiver) and TX (transmitter) to the same antenna. If you are only using one polarization (e.g., LHCP), terminate the unused connector (RHCP) with a 50 ohm terminator for optimal axial ratio and performance. This helps maintain signal integrity and prevents reflections.
Operating
1. Usage with FPV Goggles
Image: The Triple Feed Pagoda Patch Antenna mounted on a pair of FPV goggles, demonstrating a typical setup for use.
Once connected to your FPV goggles, ensure the patch antenna is oriented towards your drone or FPV aircraft for the best signal reception. The directional nature of this antenna means it performs best when pointed directly at the signal source. For diversity systems, this antenna can be paired with an omnidirectional antenna for broader coverage.
2. Optimal Performance Considerations
Image: Technical graphs illustrating the antenna's radiation pattern (top right) and S-parameter measurements (bottom row), indicating its performance characteristics.
The antenna's half-power beam width is 55° (horizontal and vertical), meaning its strongest signal reception is within this cone. For long-range flying, maintaining line-of-sight and keeping the antenna pointed towards the aircraft will maximize range and video clarity. The low axial ratio (<1.3) ensures good circular polarization purity, which is vital for minimizing multipath interference in FPV environments.
Maintenance
- Cleaning: Gently wipe the antenna surface with a soft, dry cloth to remove dust or debris. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store the antenna in its provided compact storage box to protect it from physical damage and environmental elements.
- Connector Care: Keep the SMA connector clean and free of dirt or corrosion. Ensure it is not overtightened or cross-threaded when connecting.
- Physical Inspection: Periodically inspect the antenna for any signs of damage, such as cracks in the PCB or bent connectors.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Poor video signal / Short range | Incorrect polarization match (LHCP/RHCP). Antenna not pointed at aircraft. Loose or damaged connector. Unterminated unused port. | Ensure antenna polarization matches VTX. Re-orient antenna towards aircraft. Check and secure all connections. Replace if damaged. Terminate unused port with 50 ohm load. |
| Intermittent signal | Loose connection. Obstructions between antenna and aircraft. Interference from other devices. | Check and tighten all connections. Ensure clear line-of-sight. Move away from sources of electromagnetic interference. |
| Antenna not fitting goggles | Incompatible connector type. | Verify your goggles use SMA connectors. If not, an adapter may be required (not included). |
Specifications
| Parameter | Value |
|---|---|
| Model | Patch-1 |
| Brand | Usmile |
| Frequency Band | 5.8 GHz |
| Bandwidth | 660 MHz (5.47 - 6.13 GHz) |
| Antenna Gain | 9.4 dBi |
| VSWR | <1.22 (S11 <-20 dB) |
| Axial Ratio | <1.3 |
| Half Power Beam Width | 55° (horizontal and vertical) |
| Radiation Efficiency | 83.5% |
| Polarization | LHCP / RHCP (selectable) |
| Connector Type | SMA |
| Package Dimensions | 3 x 2.4 x 1.1 inches |
| Item Weight | 0.634 ounces |
| Manufacturer | GEPRC |
Warranty Information
Please refer to the retailer or manufacturer's official website for specific warranty terms and conditions. Typically, products are covered against manufacturing defects for a limited period from the date of purchase. Keep your proof of purchase for any warranty claims.
Support
For technical assistance, troubleshooting beyond this manual, or product inquiries, please contact the manufacturer or your point of purchase. Provide your product model number (Patch-1) and a detailed description of the issue when seeking support.