{"product_id":"txwf-pcb-4212-dual-band-built-in-antenna","title":"Cdsenet TXWF-PCB-4212 Dual-Band 2.4\/5.8GHz Built-in PCB Antenna - 2.0dBi WiFi Bluetooth Antenna with IPX Connector","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 10px;\"\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 24px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 20px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; color: #444; margin-bottom: 20px;\"\u003eThe \u003cstrong\u003eTXWF-PCB-4212\u003c\/strong\u003e is a professional-grade dual-band built-in PCB antenna engineered for 2400-2500MHz (2.4GHz) and 5150-5850MHz (5.8GHz) wireless applications. Featuring a measured \u003cstrong\u003e2.0 dBi peak gain\u003c\/strong\u003e and \u003cstrong\u003eVSWR ¡Ü1.5\u003c\/strong\u003e across both frequency bands, this PCB radiator delivers consistent RF performance for WiFi 802.11b\/g\/n\/ac and Bluetooth 4.0\/5.0 modules. The compact \u003cstrong\u003e42¡Á12mm\u003c\/strong\u003e form factor with 120mm RG1.13 feeder cable and IPX (MHF1) connector enables seamless integration into space-constrained IoT devices, wireless routers, and industrial telemetry systems. Tested with Agilent E5071C network analyzer to ensure compliance with FCC\/CE\/RoHS standards.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXWF-PCB-4212.png?v=1773811701\" alt=\"\"\u003e\u003cbr\u003e\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; margin-bottom: 15px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left; border: 1px solid #ececec;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f9f9f9; border-bottom: 2px solid #eee;\"\u003e\n\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eTXWF-PCB-4212\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eFrequency Range\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003e2400-2500 MHz \/ 5150-5850 MHz (Dual-Band)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003ePeak Gain\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003e2.0 dBi (measured @ 2450MHz \u0026amp; 5500MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eVSWR\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; font-weight: bold; color: #e4393c;\"\u003e¡Ü 1.5 (across both bands)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eImpedance\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003e50 ¦¸\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eConnector Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eIPX 1st Generation (IPEX-1 \/ MHF1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCable Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eRG1.13 Coaxial (120mm length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eAntenna Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003e42 ¡Á 12 mm (PCB radiator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFR4 PCB substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003e-40¡ãC to +85¡ãC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCertifications\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFCC \/ CE \/ RoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eLast Updated\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eMarch 2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eProduct Details\u003c\/h2\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003e?? Dual-Band RF Performance\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eSimultaneously supports 2.4GHz (2400-2500MHz) and 5.8GHz (5150-5850MHz) frequency bands with consistent 2.0 dBi gain, enabling reliable WiFi 802.11b\/g\/n\/ac and Bluetooth 4.0\/5.0 connectivity. Laboratory measurements using Agilent E5071C network analyzer confirm VSWR ¡Ü1.5 across the entire operating range, ensuring \u0026gt;90% power transfer efficiency and minimal signal reflection. This dual-band capability eliminates the need for separate antennas in multi-protocol IoT devices, reducing BOM costs and simplifying mechanical design.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXWF-PCB-4212-2.png?v=1773811701\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003e?? Optimized 42¡Á12mm Form Factor\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eThe 42¡Á12mm PCB radiator with 120mm RG1.13 feeder cable is engineered for space-constrained applications where traditional external antennas are impractical. The rigid FR4 PCB substrate provides superior mechanical stability compared to flexible FPC designs, maintaining consistent electrical performance under vibration and thermal cycling. IPX (MHF1) connector provides tool-free snap-on installation compatible with 95% of commercial WiFi\/Bluetooth modules including ESP32, ESP8266, nRF52, and Qualcomm QCA series chipsets. The slightly larger radiator area (504mm2) compared to 40¡Á8mm variants delivers improved radiation efficiency at 5.8GHz.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003e??? Industrial-Grade Reliability\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eValidated for -40¡ãC to +85¡ãC operation with \u0026gt;500 hours MTBF testing per MIL-STD-810G thermal cycling protocols. RoHS-compliant materials and FCC\/CE certification ensure regulatory compliance for commercial deployment in North America, EU, and Asia-Pacific markets. The 50¦¸ impedance matching network maintains stable performance across temperature extremes, making it suitable for outdoor IoT sensors, automotive telematics, and industrial automation equipment. FR4 substrate resists moisture absorption (0.1% max) better than flexible materials, ensuring long-term reliability in humid environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; margin-bottom: 15px;\"\u003eProfessional Test Report\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px;\"\u003e\n\u003cp style=\"font-size: 15px; color: #1e3a8a; margin-bottom: 15px;\"\u003e\u003cstrong\u003eTest Equipment:\u003c\/strong\u003e Agilent E5071C ENA Series Network Analyzer\u003cbr\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e 25¡ãC ambient, free-space measurement\u003cbr\u003e\u003cstrong\u003eMeasured VSWR:\u003c\/strong\u003e 1.38 @ 2450MHz | 1.45 @ 5500MHz\u003cbr\u003e\u003cstrong\u003eReturn Loss:\u003c\/strong\u003e -14.8 dB @ 2.4GHz band | -13.2 dB @ 5.8GHz band\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eAll measurements performed in accordance with IEEE 145-2013 antenna measurement standards. Test data available in downloadable datasheet.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXWF-PCB-4212-5.png?v=1773811701\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXWF-PCB-4212-6.png?v=1773811701\" alt=\"\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; margin-bottom: 25px;\"\u003eIdeal Applications\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003e?? Smart Home \u0026amp; IoT Devices\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666;\"\u003eWiFi smart plugs, Bluetooth mesh sensors, Zigbee\/Thread border routers, smart thermostats, wireless security cameras, and home automation gateways requiring dual-band connectivity in compact form factors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003e?? Industrial Telemetry \u0026amp; M2M\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666;\"\u003eWireless data terminal units (DTU), SCADA remote monitoring, industrial Ethernet bridges, PLC wireless modules, and factory automation equipment requiring reliable 2.4\/5.8GHz communication.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003e?? Automotive \u0026amp; Fleet Tracking\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666;\"\u003eVehicle telematics units, GPS trackers with WiFi offload, OBD-II diagnostic dongles, dash cameras with wireless connectivity, and fleet management devices operating in -40¡ãC to +85¡ãC environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003e?? Agricultural \u0026amp; Environmental Monitoring\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #666;\"\u003eSoil moisture sensors, weather stations, livestock tracking tags, precision agriculture drones, and remote environmental monitoring stations requiring weatherproof wireless connectivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eResources\u003c\/h2\u003e\n\u003ca href=\"https:\/\/www.cdebyte.com\/pdf-down.aspx?id=1460\" style=\"display: inline-block; padding: 12px 25px; background-color: #0056b3; color: #fff; text-decoration: none; border-radius: 6px; font-weight: 600; font-size: 15px; margin-right: 10px;\" target=\"_blank\"\u003e?? Download Technical Datasheet (PDF)\u003c\/a\u003e\n\u003cp style=\"font-size: 13px; color: #666; margin-top: 10px;\"\u003eIncludes: Full S-parameter data, radiation patterns, integration guidelines, and mechanical drawings\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"border-top: 1px solid #eee; padding-top: 30px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #111; margin-bottom: 20px;\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-left: 3px solid #0056b3; border-radius: 4px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 8px; color: #111;\"\u003eQ: Is the TXWF-PCB-4212 compatible with ESP32 and ESP8266 WiFi modules?\u003c\/p\u003e\n\u003cp style=\"color: #666; margin: 0; font-size: 14px; line-height: 1.6;\"\u003eA: Yes, this antenna is fully compatible with ESP32, ESP8266, and other WiFi\/Bluetooth modules using standard IPX (IPEX-1\/MHF1) connectors. The 50¦¸ impedance matches the RF output of these modules, and the dual-band design supports both 2.4GHz (802.11b\/g\/n) and 5.8GHz (802.11ac) protocols. Simply connect the IPX connector to your module's antenna port¡ªno additional matching network required. Verified compatibility includes ESP32-WROOM, ESP8266-12F, nRF52840, Qualcomm QCA4020, and MediaTek MT7688 series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-left: 3px solid #0056b3; border-radius: 4px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 8px; color: #111;\"\u003eQ: How do I install this built-in PCB antenna inside a plastic enclosure?\u003c\/p\u003e\n\u003cp style=\"color: #666; margin: 0; font-size: 14px; line-height: 1.6;\"\u003eA: For optimal performance, mount the 42¡Á12mm PCB radiator flat against the inside surface of your plastic enclosure, keeping it at least 10mm away from metal components and batteries. The rigid FR4 substrate provides better mechanical stability than flexible antennas, making it easier to mount using standoffs or double-sided adhesive tape. For ABS\/PC enclosures ¡Ü3mm thick, expect \u0026lt;1dB signal loss. Avoid placing the antenna near LCD displays, motors, or switching power supplies which can cause RF interference. The 120mm feeder cable allows flexible routing (minimum bend radius: 5mm). Detailed mounting guidelines are included in the downloadable datasheet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-left: 3px solid #0056b3; border-radius: 4px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 8px; color: #111;\"\u003eQ: What is the operating temperature range and environmental durability?\u003c\/p\u003e\n\u003cp style=\"color: #666; margin: 0; font-size: 14px; line-height: 1.6;\"\u003eA: The TXWF-PCB-4212 is rated for -40¡ãC to +85¡ãC continuous operation, making it suitable for outdoor and automotive applications. The antenna has passed 500-hour thermal cycling tests per MIL-STD-810G standards and maintains VSWR ¡Ü1.5 across the full temperature range. The FR4 PCB substrate has low moisture absorption (0.1% max), providing superior long-term reliability in humid environments compared to flexible FPC antennas. While the antenna itself is not waterproof (no IP rating), it can be used in weatherproof enclosures for outdoor IoT deployments. The RoHS-compliant materials resist UV degradation. For marine or high-salt environments, consider conformal coating the PCB radiator for additional corrosion protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-left: 3px solid #0056b3; border-radius: 4px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 8px; color: #111;\"\u003eQ: Can I use this antenna for both WiFi and Bluetooth simultaneously?\u003c\/p\u003e\n\u003cp style=\"color: #666; margin: 0; font-size: 14px; line-height: 1.6;\"\u003eA: Yes, the dual-band design supports concurrent WiFi and Bluetooth operation on modules with combo chipsets (e.g., ESP32, Cypress CYW43455). The 2400-2500MHz coverage includes both WiFi channels 1-14 and Bluetooth\/BLE 2.4GHz band. However, note that WiFi and Bluetooth share the same 2.4GHz spectrum, so your module's firmware must implement proper coexistence mechanisms to avoid interference. For applications requiring simultaneous high-throughput WiFi and Bluetooth, consider using WiFi on the 5.8GHz band (if your module supports 802.11ac) to eliminate spectrum contention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 15px; background: #fafafa; border-left: 3px solid #0056b3; border-radius: 4px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 8px; color: #111;\"\u003eQ: Can this antenna be used inside a metal enclosure?\u003c\/p\u003e\n\u003cp style=\"color: #666; margin: 0; font-size: 14px; line-height: 1.6;\"\u003eA: No, placing any antenna inside a fully enclosed metal case will cause severe signal attenuation (typically 20-40dB loss) due to Faraday cage effects, rendering wireless communication unreliable or impossible. The antenna must be mounted in a non-metallic (plastic\/ABS\/PC) section of the enclosure or positioned near a plastic window\/opening in metal housings. If your device requires metal shielding for EMI compliance, consider using an external antenna with an SMA bulkhead connector, or design a plastic antenna compartment isolated from the metal chassis. Maintain at least 15mm clearance from large metal surfaces (PCB ground planes, batteries, heat sinks) to minimize detuning effects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"cdsenet","offers":[{"title":"Default Title","offer_id":44909133267046,"sku":"txwf-pcb-4212","price":0.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXWF-PCB-4212-_1_800x800_v2.jpg?v=1773047196","url":"https:\/\/cdsenet.store\/products\/txwf-pcb-4212-dual-band-built-in-antenna","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}