{"product_id":"txgn-fpc-3308-nb-iot-gsm-gprs-fpc-antenna-3-0dbi-33x8mm","title":"Cdsenet TXGN-FPC-3308 NB-IoT GSM FPC Antenna 3.0dBi Dual-Band IPX-I","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\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\u003eTXGN-FPC-3308\u003c\/strong\u003e is an NB-IoT \/ GSM \/ GPRS dual-band FPC (Flexible Printed Circuit) internal antenna engineered for compact cellular IoT terminals. It delivers a \u003cstrong\u003epeak gain of 3.0 dBi\u003c\/strong\u003e with VSWR \u003cstrong\u003e≤ 1.5\u003c\/strong\u003e across two frequency ranges: \u003cstrong\u003e824–960 MHz\u003c\/strong\u003e (GSM 850\/900, NB-IoT Band 5\/8\/20\/28) and \u003cstrong\u003e1710–2170 MHz\u003c\/strong\u003e (GSM 1800\/1900, WCDMA Band 1\/2\/4). The ultra-compact \u003cstrong\u003e33 × 8mm\u003c\/strong\u003e FPC radiator with a 95mm IPX-I feeder enables integration into the smallest smart meter, asset tracker, and industrial IoT enclosures where space is the primary constraint. Updated March 2026.\u003c\/p\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXGN-FPC-3308.png?v=1774863613\" alt=\"TXGN-FPC-3308 NB-IoT GSM GPRS dual-band FPC internal antenna 33x8mm with IPX-I connector\" loading=\"lazy\" decoding=\"async\" style=\"display: block; margin: 0 auto; max-width: 100%; height: auto; border-radius: 8px;\"\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    \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;\"\u003eValue\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;\"\u003eFrequency Range\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003e824–960 MHz \u0026amp; 1710–2170 MHz (NB-IoT \/ GSM \/ GPRS \/ WCDMA)\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;\"\u003ePeak Gain\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003e3.0 dBi\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n            \u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eVSWR\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; font-weight: bold; color: #c0392b;\"\u003e≤ 1.5 across both bands (verified with Agilent E5071C)\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;\"\u003eImpedance\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003e50 Ω\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n            \u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eConnector Type\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003eIPX-I (IPEX Gen 1 \/ U.FL compatible)\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;\"\u003eCable Length\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003e95 mm (customizable per order)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n            \u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eAntenna Dimensions\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003e33 × 8 mm\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;\"\u003eRadiator Material\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003eFPC (Flexible Printed Circuit)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n            \u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eMax Input Power\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003e50 W\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 °C to +85 °C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n            \u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCompliance\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px;\"\u003eRoHS\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;\"\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\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;\"\u003e33 × 8mm Ultra-Compact FPC — Smallest-Class NB-IoT Internal Antenna\u003c\/h3\u003e\n      \u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eAt just 33 × 8mm, the TXGN-FPC-3308 is designed for enclosures where even standard 45mm FPC antennas cannot fit — including coin-cell-powered NB-IoT sensors, smart utility meters, and miniature asset trackers. The FPC substrate conforms to curved inner surfaces with a 3M adhesive backing, enabling tool-free mounting without modifying the enclosure. Despite its compact size, the antenna achieves 3.0 dBi gain with VSWR ≤ 1.5, meeting the same impedance matching standard as larger sub-1GHz antennas.\u003c\/p\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXGN-FPC-3308-_3.jpg?v=1774863614\" alt=\"TXGN-FPC-3308 33x8mm ultra-compact FPC radiator for NB-IoT GSM smart meter and asset tracker\" loading=\"lazy\" decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 4px;\"\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;\"\u003eIPX-I Connector with 95mm Customizable Feeder\u003c\/h3\u003e\n      \u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eThe standard IPX-I (U.FL-compatible) connector mates directly with Quectel BC660K, SIMCom SIM7020, and other NB-IoT \/ GSM modules. The 95mm coaxial feeder is customizable in length per order, accommodating a wide range of enclosure layouts. Press-fit installation requires no soldering and is compatible with automated assembly lines for high-volume IoT device production.\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    \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 \u003cstrong\u003eAgilent E5071C\u003c\/strong\u003e vector network analyzer: VSWR ≤ 1.5 confirmed across both operating bands (824–960 MHz and 1710–2170 MHz). Achieving ≤1.5 VSWR across a dual-band cellular antenna in a 33 × 8mm FPC form factor demonstrates precise radiator tuning for NB-IoT and GSM frequency requirements.\u003c\/p\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXGN-FPC-3308-1.png?v=1774863614\" alt=\"TXGN-FPC-3308 VSWR test chart 824-960MHz and 1710-2170MHz NB-IoT GSM measured with Agilent E5071C\" loading=\"lazy\" decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 4px;\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXGN-FPC-3308-2.png?v=1774863614\" alt=\"TXGN-FPC-3308 radiation pattern test chart NB-IoT GSM dual-band FPC antenna omnidirectional\" loading=\"lazy\" decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 4px;\"\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    \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;\"\u003eNB-IoT Smart Metering\u003c\/h3\u003e\n        \u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eSmart gas, water, and electricity meters using NB-IoT Band 20\/28 (Europe) or Band 5\/8 (Asia-Pacific) for low-power wide-area cellular uplink without SIM card subscription complexity.\u003c\/p\u003e\n      \u003c\/div\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;\"\u003eGSM \/ GPRS Asset Tracking\u003c\/h3\u003e\n        \u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eLogistics tracking devices, cold-chain monitors, and handheld GSM terminals requiring a compact internal antenna with dual-band GSM 850\/900\/1800\/1900MHz coverage.\u003c\/p\u003e\n      \u003c\/div\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;\"\u003eEnvironmental \u0026amp; Industrial Sensors\u003c\/h3\u003e\n        \u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eNB-IoT environmental monitoring nodes for air quality, temperature, and humidity in smart buildings, industrial facilities, and agricultural deployments.\u003c\/p\u003e\n      \u003c\/div\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;\"\u003eWearables \u0026amp; Compact IoT Devices\u003c\/h3\u003e\n        \u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003ePersonal emergency response devices, elderly care wearables, and miniature IoT terminals where the 33 × 8mm form factor enables cellular connectivity in the smallest possible enclosure.\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=\"https:\/\/www.cdebyte.com\/pdf-down.aspx?id=1263\" target=\"_blank\" 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;\"\u003e📄 Download Datasheet (PDF)\u003c\/a\u003e\n  \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    \u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n      \u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: Which NB-IoT and GSM bands does the TXGN-FPC-3308 support?\u003c\/p\u003e\n      \u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The 824–960MHz band covers NB-IoT Band 5 (850MHz, Americas), Band 8 (900MHz, Asia-Pacific\/Europe), Band 20 (800MHz, Europe), and Band 28 (700MHz, Asia-Pacific), as well as GSM 850\/900MHz. The 1710–2170MHz band covers GSM 1800\/1900MHz and WCDMA Band 1\/2\/4. This dual-band coverage supports global NB-IoT and GSM deployments with a single antenna design.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n      \u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: Is this antenna compatible with LoRa modules?\u003c\/p\u003e\n      \u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The TXGN-FPC-3308 is optimized for NB-IoT and GSM frequencies (824–960MHz and 1710–2170MHz). While the lower band partially overlaps with 868\/915MHz LoRa frequencies, the antenna is not tuned for LoRa impedance matching at those specific frequencies. For LoRa and LoRaWAN applications, use a dedicated 868\/915MHz antenna such as the TX915-FPC-4510 for optimal VSWR and gain performance.\u003c\/p\u003e\n    \u003c\/div\u003e\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 the 95mm cable length be customized?\u003c\/p\u003e\n      \u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: Yes. The standard cable length is 95mm, but custom lengths are available per order to accommodate specific enclosure layouts. Contact CDSENET with your required cable length and connector type when placing a bulk order. Custom cable lengths do not affect the antenna's RF performance as long as the feeder cable loss at the operating frequency is accounted for in the system link budget.\u003c\/p\u003e\n    \u003c\/div\u003e\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      \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 TXGN-FPC-3308 must be mounted on the inner surface of a non-metallic (ABS, PC, or TPEE) enclosure with a minimum 5mm clearance from metal components. For metal enclosures, use an external cellular antenna with a bulkhead SMA connector routed through a feedthrough.\u003c\/p\u003e\n    \u003c\/div\u003e\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 deployments?\u003c\/p\u003e\n      \u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The TXGN-FPC-3308 is rated for -40°C to +85°C, covering outdoor industrial and utility meter deployments. The FPC substrate is RoHS-compliant and resistant to humidity under standard operating conditions. For direct outdoor exposure, 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.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e","brand":"cdsenet","offers":[{"title":"Default Title","offer_id":45206541205606,"sku":"txgn-fpc-3308","price":0.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TXGN-FPC-3308-_1_800x800_v2.jpg?v=1773476547","url":"https:\/\/cdsenet.store\/products\/txgn-fpc-3308-nb-iot-gsm-gprs-fpc-antenna-3-0dbi-33x8mm","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}