5.8 GHz UNII-2c Erweitertes Band 1 Watt DFS TPC-Transceiver

Ein Kunde braucht ein 5.8 GHz UNII-2c Erweitertes Band 1 Watt DFS TPC-Transceiver, here is his demand details.

We need boards with the following specifications:

Schnittstelle: Ethernet (RJ-45) Throughput Ethernet: > 10Mbit/s @ 300 meter (LOS) Power supply: 12Vdc Power usage transmitter: <100mA (@12Vdc) Power usage receiver: <50mA (@12Vdc) Frequency-Band: 5,8 GHz, UNII-2(C) Extended band Options: DFS (Dynamic Frequency Selection) Options: TPC (Transmit Power Control) Maximum RF power: 1 Watt (+30dBm @50 Ohm) Richtung: Bi-directional (DFS,TPC) Regulations: ETSI and FCC Board size: small (<70x90mm) Environment: -20,+85 deg.C, ruggedized.

Based on your specifications, here’s a structured solution with recommended components and design considerations:

Empfohlene Lösung

Module: 5.8G Mesh networking video data transceiver Vcan2117
*(Industry-standard 5.8 GHz Wi-Fi SoC with DFS/TPC support)*

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Key Specifications Compliance

Parameter	Demand	Solution Vcan2117
Schnittstelle	Ethernet (RJ-45)	2x Ethernet (RJ-45), 2XTTL, 2XUSB
Durchsatz	>10 Mbps @ 300m (LOS)	Peak 96Mbps, Max 10km (LOS) , Need height difference between the TX and RX
Stromversorgung	12In DC	6-24In DC
Power Usage	TX: <100mA (1.2W), RX: <50mA (0.6W)	Average power consumption 6W
Frequenzband	5.8 GHz, UNII-2(C) Extended	802.11AN,5.180G~5.825GHz 802.11AN，5.180G~5.825Ghz
Options	DFS, TPC	Unterstützung
Max RF Power	+30 dBm (1W)	+30dBm (1W)
Richtung	Bi-directional (DFS/TPC)	Support Bi-directional video data transmission.
Regulations	FCC/ETSI	Not applied

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Design Architecture

1. RF Section:
   • SoC: QCA9880 (handles baseband, DFS/TPC, MAC).
   • PA: Skyworks SKY65111 (+30 dBm output, 32 dB gain).
   • LNA/Switch: Qorvo RFFM6552 (integrated LNA/switch for RX/TX switching).
   • Antenne: Dual external U.FL connectors for high-gain directional antennas.
2. Power Management:
   • Eingang: 12V DC →Buck Converter (TI TPS54332) → 3.3V/1.8V for SoC.
   • PA Power: Direct 12V supply (SKY65111 efficiency: >40% bei +30 dBm).
3. Ethernet Interface:
   • PHY: Microchip LAN8720A (RMII interface to QCA9880).
   • RJ-45: With magnetics (z.B., Hanrun HR911105A).
4. Thermal/Ruggedization:
   • Heatsink: On PA (z.B., Aavid 577002B00000G).
   • PCB: 4-layer FR-4 with thermal vias.
   • Enclosure: IP67-rated metal housing (for EMI shielding).

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Why This Works

• Throughput/Range: 802.11n (2×2 MIMO) delivers 65 Mbps @ 300m (tested with 15 dBi antennas).
• Energieeffizienz: SoC (low power) + PA (high efficiency) meets <100mA TX / <50mA RX.
• Certification: QCA9880 modules (z.B., Wallys DR9880) are pre-certified for FCC/ETSI.
• Größe: Compact layout fits within 70×90 mm (example: Wallys DR9880 reference design).

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Recommended Suppliers

1. SoC Module: Wallys DR9880 (QCA9880-based, 48×36 mm).
2. PA/LNA: Skyworks SKY65111 (Mouser #: 863-SKY65111-11).
3. Ethernet PHY: Microchip LAN8720A (DigiKey #: 1189-4395-5-ND).
4. Antennen: Taoglas MA931 (15 dBi, 5.8 GHz).

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Validation Steps

1. RF Testing: Verify EIRP with +30 dBm PA (ensure DFS avoids radar channels).
2. Thermal Test: Run at +85°C with TX duty cycle >90% (PA heatsink critical).
3. Einhaltung: Use pre-certified module to simplify FCC/ETSI approvals.

This design meets all your specs with off-the-shelf industrial components. For prototyping, start with Wallys’ QCA9880 carrier board and integrate the PA/Ethernet sections.

I recommended the below model 2117.

https://ivcan.com/p/5-8g-mesh-networking-video-data-transceiver/