{"product_id":"tx2400-fpc-4008-2-4ghz-wifi-bluetooth-fpc-antenna-2-5dbi","title":"10PCS Cdsenet TX2400-FPC-4008 2.4GHz WiFi FPC Antenna 2.5dBi IPEX-I 40x8mm Compact and Lightweight","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\n\u003cp style=\"font-size: 16px; color: #444; margin-bottom: 20px;\"\u003eThe \u003cstrong\u003eTX2400-FPC-4008\u003c\/strong\u003e is a 2.4GHz omnidirectional FPC (Flexible Printed Circuit) internal antenna engineered for WiFi, Bluetooth, ZigBee, and 2.4GHz ISM band IoT devices. It delivers a measured \u003cstrong\u003epeak gain of 2.5 dBi\u003c\/strong\u003e and a typical VSWR of \u003cstrong\u003e1.26 at 2.44GHz\u003c\/strong\u003e — tuned to the center of the WiFi 2.4GHz channel range (channels 1–13) — covering the full \u003cstrong\u003e2.4–2.5GHz\u003c\/strong\u003e ISM band. The slim \u003cstrong\u003e40 × 8mm\u003c\/strong\u003e FPC radiator with a 125mm IPEX-I feeder is optimized for narrow-profile enclosures such as smart light switches, wall-mount sensors, and slim IoT panels where width is constrained but length is available. Updated March 2026.\u003c\/p\u003e\n\n\u003cdiv\u003e\u003cdiv\u003e\u003cimg alt=\"TX2400-FPC-4008 2.4GHz WiFi Bluetooth FPC internal antenna 40x8mm with IPEX-I connector\" cke-id=\"img31\" decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-FPC-4008.png?v=1774944205\" style=\"display: block; margin: 0 auto; max-width: 100%; height: auto; border-radius: 8px;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\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: 15px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\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\t\u003cthead\u003e\n\t\t\u003ctr style=\"background-color: #f9f9f9; border-bottom: 2px solid #eee;\"\u003e\n\t\t\t\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eParameter\u003c\/th\u003e\n\t\t\t\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eValue\u003c\/th\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/thead\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eFrequency Range\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e2.4 – 2.5 GHz (WiFi 2.4GHz, Bluetooth, ZigBee, ISM)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003ePeak Gain\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e2.5 dBi\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eVSWR\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: bold; color: #c0392b;\"\u003e≤ 2.0 (Typ. 1.26 @ 2.44 GHz — WiFi channel center)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eImpedance\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e50 Ω\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eConnector Type\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eIPEX-I (IPEX Gen 1 \/ U.FL compatible, gold-plated)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCable Length\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e125 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eAntenna Dimensions\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e40 × 8 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eRadiator Material\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eFPC (Flexible Printed Circuit)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eRadiation Pattern\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eOmnidirectional (vertical polarization)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eMax Input Power\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e50 W\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eOperating Temperature\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e-40 °C to +85 °C\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCompliance\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eRoHS\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eLast Updated\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eMarch 2026\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\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\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;\"\u003e40 × 8mm Slim-Profile FPC — Optimized for Narrow-Profile Enclosures\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eThe 40 × 8mm aspect ratio is specifically suited for narrow-profile enclosures such as smart light switches, wall-mount IoT panels, and slim sensor housings where the 8mm width fits within tight PCB edge clearances. Compared to the square-format TX2400-FPC-3014 (30 × 14mm), the 4008 trades width for length, providing a different mounting geometry for different enclosure constraints. The 3M adhesive backing enables tool-free mounting on curved or flat inner surfaces of non-metallic enclosures.\u003c\/p\u003e\n\n\u003cdiv\u003e\u003cdiv\u003e\u003cimg alt=\"TX2400-FPC-4008 40x8mm slim-profile FPC radiator for 2.4GHz WiFi Bluetooth narrow-profile IoT enclosure\" cke-id=\"img32\" decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-FPC-4008-3.png?v=1774944206\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 4px;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\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;\"\u003eGold-Plated IPEX-I Connector — 2.44GHz Center-Tuned for WiFi Channel Optimization\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eThe gold-plated IPEX-I (U.FL-compatible) connector mates directly with ESP32, ESP8266, nRF52840, CC2652, and other 2.4GHz wireless SoCs with IPX-I antenna ports. The antenna is center-tuned at 2.44GHz — the midpoint of WiFi channels 1–13 (2.412–2.472GHz) — ensuring consistent VSWR performance across all WiFi 2.4GHz channels rather than being optimized only for the band edges. The 125mm coaxial feeder provides routing flexibility inside compact IoT enclosures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\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: 20px;\"\u003eProfessional Test Report\u003c\/h2\u003e\n\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center; margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-size: 15px; color: #1e3a8a; margin-bottom: 15px;\"\u003eMeasured with a vector network analyzer (Agilent E5071C equivalent): VSWR = \u003cstrong\u003e1.26 @ 2.44 GHz\u003c\/strong\u003e, confirming ≤2.0 across the full 2.4–2.5 GHz operating band. Return loss ≈ 19 dB at the measured frequency point.\u003c\/p\u003e\n\n\u003cdiv\u003e\u003cdiv\u003e\u003cimg alt=\"TX2400-FPC-4008 VSWR test chart 2.4-2.5GHz WiFi Bluetooth FPC antenna measured with Agilent network analyzer\" cke-id=\"img33\" decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-FPC-4008-1.png?v=1774944206\" style=\"max-width: 100%; height: auto; border-radius: 4px;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center;\"\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cimg alt=\"TX2400-FPC-4008 radiation pattern test chart 2.4GHz WiFi FPC antenna omnidirectional\" cke-id=\"img34\" decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-FPC-4008-2.png?v=1774944206\" style=\"max-width: 100%; height: auto; border-radius: 4px;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\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;\"\u003eIdeal Applications\u003c\/h2\u003e\n\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eSmart Home \u0026amp; Wall-Mount Devices\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eSmart light switches, wall-mount IoT panels, smart plugs, and home automation controllers where the 40 × 8mm slim profile fits within narrow enclosure walls.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eWiFi \u0026amp; Bluetooth Sensor Nodes\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eWiFi 802.11b\/g\/n sensor nodes, Bluetooth 5.x beacons, and ZigBee 3.0 mesh devices using ESP32, nRF52840, or CC2652-based designs with IPEX-I antenna ports.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eIndustrial IoT \u0026amp; Telemetry\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eCompact industrial telemetry systems, wireless data acquisition terminals, and 2.4GHz ISM band monitoring devices in metal-free housings requiring a slim internal antenna.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eConsumer Electronics\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eCompact consumer electronics, portable devices, and slim-form-factor gadgets where the 8mm width enables 2.4GHz wireless connectivity in enclosures too narrow for wider FPC formats.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\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=\"http:\/\/www.cdebyte.com\/pdf-down.aspx?id=1265\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 12px 25px; background-color: #0056b3; color: #fff; text-decoration: none; border-radius: 6px; font-weight: 600; font-size: 15px;\" target=\"_blank\"\u003e📄 Download Datasheet (PDF)\u003c\/a\u003e\u003c\/section\u003e\n\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\u003c\/h2\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: What is the difference between the TX2400-FPC-4008 and TX2400-FPC-3014?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: Both antennas cover 2.4–2.5GHz with 2.5 dBi gain and IPEX-I connectors, but differ in form factor and tuning. The TX2400-FPC-4008 (40 × 8mm, 125mm cable) is slim and long, center-tuned at 2.44GHz for WiFi channel optimization, with VSWR ≤2.0. The TX2400-FPC-3014 (30 × 14mm, 118mm cable) is more square, tuned at 2.5GHz, with VSWR ≤1.5. Choose 4008 for narrow-profile enclosures and WiFi-centric applications; choose 3014 for square-format enclosures requiring tighter impedance matching.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: Which 2.4GHz protocols does the TX2400-FPC-4008 support?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The 2.4–2.5GHz frequency range covers WiFi 802.11b\/g\/n (2.412–2.484GHz), Bluetooth Classic and BLE 5.x (2.402–2.480GHz), ZigBee 3.0 (2.405–2.480GHz), Thread, Matter, and proprietary 2.4GHz FSK\/GFSK protocols. The center tuning at 2.44GHz aligns with the midpoint of WiFi channels 1–13, providing consistent VSWR across all WiFi 2.4GHz channels.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: Can this antenna be installed inside a metal enclosure?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: No. Placing any FPC antenna inside a metallic housing causes severe signal attenuation due to RF shielding. The TX2400-FPC-4008 must be mounted on the inner surface of a non-metallic (ABS, PC, or TPEE) enclosure with a minimum 3mm clearance from metal components. At 2.4GHz, even partial metal coverage significantly degrades antenna performance. For metal enclosures, use an external 2.4GHz antenna with a bulkhead SMA connector.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: How do I mount the TX2400-FPC-4008 inside my device?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: Peel the 3M adhesive backing and press the 40 × 8mm FPC flat against the inner wall of a non-metallic enclosure, oriented with the long axis parallel to the enclosure wall. Route the 125mm coaxial feeder to your 2.4GHz module's IPEX-I socket and press-fit the connector until it clicks. Keep the antenna at least 3mm from the PCB ground plane, battery, and metal shielding cans. No soldering is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: What is the operating temperature range and is it suitable for outdoor IoT deployments?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The TX2400-FPC-4008 is rated for -40°C to +85°C. The FPC substrate is RoHS-compliant and resistant to humidity under standard operating conditions. For outdoor deployments, ensure the host enclosure provides IP65 or higher sealing. The antenna itself is not independently IP-rated and must be protected by the device enclosure from direct rain, UV exposure, and condensation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"cdsenet","offers":[{"title":"Default Title","offer_id":45301875736678,"sku":"10*TX2400-FPC-4008","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-FPC-4008-_1_800x800_v2.jpg?v=1773986454","url":"https:\/\/cdsenet.store\/products\/tx2400-fpc-4008-2-4ghz-wifi-bluetooth-fpc-antenna-2-5dbi","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}