Wifi panel antenna

Selecting the correct frequency is critical; ensure the antenna supports 2.4GHz (long range), 5GHz (high speed), or Dual-Band depending on your router. For gain, higher dBi (e.g., 14dBi - 20dBi) provides a narrower, more concentrated beam for long-distance point-to-point links, while lower dBi is better for broader, short-range coverage.

Prioritize antennas with a Low VSWR (Voltage Standing Wave Ratio) of <1.5, which indicates minimal signal reflection and maximum efficiency. Additionally, check for MIMO (Multiple Input Multiple Output) technology support, typically requiring dual cables, to significantly increase data throughput and stability in modern wireless networks.

For outdoor use, the antenna must have an IP65 to IP67 waterproof rating to withstand rain and dust. Ensure the radome is made of UV-resistant ABS or Fiberglass to prevent cracking under sun exposure, and verify that the mounting hardware is stainless steel or galvanized to prevent corrosion in humid or coastal environments.

B2B buyers must ensure products carry CE (Europe), FCC (USA), or RoHS (Environmental) certifications. These documents prove the device meets electromagnetic interference standards and does not contain hazardous substances, which is mandatory for customs clearance and legal resale.

The primary risk is specification mismatch, where the actual gain (dBi) is lower than advertised. To mitigate this, request a VNA (Vector Network Analyzer) test report from the supplier before shipping. Another risk is shipping damage to the sensitive internal PCB; ensure the supplier uses EPE foam packaging and reinforced outer cartons.

Focus on Tiered Pricing; manufacturers often offer a 15-25% discount for orders exceeding 500 units. Negotiate for OEM branding (logo printing) to be included for free at certain volume thresholds. For long-term cooperation, request a 2-year quality warranty instead of the standard 1-year term.

Always use Secured Payment services provided by Made-in-China.com to ensure funds are only released upon proof of shipment. For logistics, choose DDP (Delivered Duty Paid) if you want the supplier to handle all customs duties, or FOB (Free On Board) if you have a preferred freight forwarder to optimize shipping costs for bulk sea freight.