{"product_id":"tx4g-fpc-9914-high-gain-5dbi-4g-lte-internal-fpc-antenna","title":"Cdsenet TX4G-FPC-9914 5dBi 4G LTE Internal FPC Antenna 700–2700 MHz","description":"\u003cstyle\u003e\n  .geo-wrap { 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; }\n  .geo-wrap h2 { font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 20px; }\n  .geo-wrap h3 { font-size: 17px; color: #0056b3; margin: 0 0 8px 0; }\n  .geo-wrap table { width: 100%; border-collapse: collapse; font-size: 14px; text-align: left; border: 1px solid #ececec; }\n  .geo-wrap th { padding: 12px; font-weight: bold; color: #333; background-color: #f9f9f9; border-bottom: 2px solid #eee; }\n  .geo-wrap td { padding: 12px; border-bottom: 1px solid #f0f0f0; }\n  .geo-wrap tr:nth-child(even) td { background-color: #fafafa; }\n  .apps-grid { display: flex; flex-wrap: wrap; gap: 16px; }\n  .apps-grid-item { flex: 1 1 22%; max-width: 25%; box-sizing: border-box; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff; }\n  @media (max-width: 600px) { .apps-grid-item { flex: 1 1 100% !important; max-width: 100% !important; } }\n  .detail-card { background: #fff; border: 1px solid #eee; border-radius: 8px; padding: 20px; margin-bottom: 20px; }\n  .test-box { background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; }\n  .faq-item { margin-bottom: 18px; }\n  .faq-item p.q { font-weight: bold; margin-bottom: 5px; }\n  .faq-item p.a { color: #555; font-size: 14px; margin: 0; }\n  .freshness { font-size: 12px; color: #999; margin-top: -10px; margin-bottom: 20px; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"geo-wrap\"\u003e\n\n\u003c!-- 1. Product Overview --\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n  \u003ch2\u003eProduct Overview\u003c\/h2\u003e\n  \u003cp class=\"freshness\"\u003eUpdated March 2026\u003c\/p\u003e\n  \u003cp\u003eThe \u003cstrong\u003eCdsenet TX4G-FPC-9914\u003c\/strong\u003e is a professional-grade internal FPC (Flexible Printed Circuit) antenna engineered for 4G LTE, NB-IoT, and GPRS applications. Operating across \u003cstrong\u003e700–2700 MHz\u003c\/strong\u003e with a measured peak gain of \u003cstrong\u003e5.0 dBi\u003c\/strong\u003e, it delivers reliable signal performance in compact IoT enclosures. The precision-etched FPC radiator is mounted on a high-toughness flexible substrate with \u003cstrong\u003e3M adhesive backing\u003c\/strong\u003e, enabling tool-free installation on any non-metallic surface. Nominal impedance is 50 Ω; connector is IPEX-I (U.FL). RoHS compliant.\u003c\/p\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX4G-FPC-9914-1.png?v=1775035743\" alt=\"Cdsenet TX4G-FPC-9914 5dBi 4G LTE internal FPC antenna — front view showing flexible radiator and IPEX-I connector\" loading=\"lazy\" style=\"max-width:100%; border-radius:6px; margin-top:15px;\"\u003e\n\u003c\/section\u003e\n\n\u003c!-- 2. Technical Specifications --\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdiv style=\"overflow-x: auto;\"\u003e\n    \u003ctable\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eTechnical Value\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e700 – 2700 MHz (4G LTE \/ NB-IoT \/ GPRS)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.0 dBi\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVSWR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight:bold; color:#c0392b;\"\u003e≤ 2.0 (typical; measured by Agilent E5071C VNA)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReturn Loss\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≈ −10 dB (RF energy transmission efficiency \u0026gt; 89%)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePolarization\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLinear\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIPEX-I (U.FL), gold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRF1.13 coaxial, 120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99 mm × 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubstrate Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFPC (Flexible Printed Circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3M adhesive backing (non-metallic surfaces only)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Updated\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\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\u003c!-- 3. Product Details --\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n\n  \u003cdiv class=\"detail-card\"\u003e\n    \u003ch3\u003eUltra-Thin Flexible Radiator — Bends to Fit Any Enclosure\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px; color:#555; margin-bottom:12px;\"\u003eThe high-toughness FPC substrate allows the antenna to conform to curved or irregular inner surfaces of non-metallic housings without performance degradation. At 99 × 14 mm and sub-millimeter thickness, it integrates into space-constrained designs where rigid PCB antennas cannot. The 3M adhesive layer provides a secure, vibration-resistant bond without screws or brackets.\u003c\/p\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX4G-FPC-9914.png?v=1775035743\" alt=\"TX4G-FPC-9914 FPC antenna flexible substrate detail — 99×14 mm ultra-thin radiator with 3M adhesive backing\" loading=\"lazy\" style=\"max-width:100%; border-radius:6px;\"\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"detail-card\"\u003e\n    \u003ch3\u003eGold-Plated IPEX-I Connector with Low-Loss RF1.13 Cable\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px; color:#555;\"\u003eThe gold-plated IPEX-I (U.FL) connector ensures a secure, corrosion-resistant mating with standard U.FL sockets on LTE\/NB-IoT modules (e.g., Quectel EC21, SIM7600, BG96). The 120 mm RF1.13 coaxial cable minimises insertion loss between the antenna and the module, maintaining signal integrity across the full 700–2700 MHz band.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- 4. Test Report --\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n  \u003ch2\u003eProfessional Test Report\u003c\/h2\u003e\n  \u003cdiv class=\"test-box\"\u003e\n    \u003cp\u003eMeasured using the \u003cstrong\u003eAgilent E5071C\u003c\/strong\u003e Vector Network Analyzer (300 kHz – 8.5 GHz) under controlled lab conditions:\u003c\/p\u003e\n    \u003cul style=\"margin:10px 0 15px 20px; font-size:14px; color:#444;\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 700 MHz – 2700 MHz\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eVSWR:\u003c\/strong\u003e ≤ 2.0 across the full band\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eReturn Loss:\u003c\/strong\u003e ≈ −10 dB — RF energy transmission efficiency \u0026gt; 89%, minimising signal reflection\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePeak Gain:\u003c\/strong\u003e 5.0 dBi\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX4G-FPC-9914-2.png?v=1775035743\" alt=\"TX4G-FPC-9914 VSWR test chart — Agilent E5071C measurement across 700–2700 MHz band\" loading=\"lazy\" style=\"max-width:100%; border-radius:6px; margin-bottom:12px;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX4G-FPC-9914-3.png?v=1775035743\" alt=\"TX4G-FPC-9914 return loss (S11) test chart — measured gain pattern across 4G LTE frequency range\" loading=\"lazy\" style=\"max-width:100%; border-radius:6px;\"\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- 5. Ideal Applications --\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n  \u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n  \u003cdiv class=\"apps-grid\"\u003e\n    \u003cdiv class=\"apps-grid-item\"\u003e\n      \u003ch3\u003eSmart Terminals \u0026amp; Handhelds\u003c\/h3\u003e\n      \u003cp style=\"font-size:14px; color:#555; margin:0;\"\u003ePortable 4G routers, handheld data terminals, and POS machines requiring a low-profile internal antenna with reliable LTE coverage.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"apps-grid-item\"\u003e\n      \u003ch3\u003eIndustrial IoT \u0026amp; Telemetry\u003c\/h3\u003e\n      \u003cp style=\"font-size:14px; color:#555; margin:0;\"\u003eNB-IoT smart meters, remote telemetry units (RTUs), and 4G sensor gateways in factory automation and utility monitoring.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"apps-grid-item\"\u003e\n      \u003ch3\u003eAutomotive \u0026amp; Fleet Tracking\u003c\/h3\u003e\n      \u003cp style=\"font-size:14px; color:#555; margin:0;\"\u003eIn-vehicle 4G trackers and fleet management modules where space is limited and a flexible antenna can be routed along interior panels.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"apps-grid-item\"\u003e\n      \u003ch3\u003eAgriculture \u0026amp; Environmental Sensors\u003c\/h3\u003e\n      \u003cp style=\"font-size:14px; color:#555; margin:0;\"\u003eNB-IoT \/ LTE-M environmental monitoring nodes, soil sensors, and weather stations deployed in remote areas with 4G coverage.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- 6. Resources --\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n  \u003ch2\u003eResources\u003c\/h2\u003e\n  \u003ca href=\"https:\/\/www.cdebyte.com\/pdf-down.aspx?id=1253\" target=\"_blank\" rel=\"noopener\" 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 TX4G-FPC-9914 Datasheet (PDF)\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003c!-- 7. FAQ --\u003e\n\u003csection style=\"border-top: 1px solid #eee; padding-top: 30px; margin-bottom: 20px;\"\u003e\n  \u003ch2\u003eFAQ\u003c\/h2\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cp class=\"q\"\u003eQ: Which 4G\/LTE modules is the TX4G-FPC-9914 compatible with?\u003c\/p\u003e\n    \u003cp class=\"a\"\u003eA: The TX4G-FPC-9914 uses a standard IPEX-I (U.FL) connector and 50 Ω impedance, making it directly compatible with most mainstream LTE and NB-IoT modules including Quectel EC21\/EC25, SIM7600, BG96, and Sierra Wireless HL series. Verify that your module's U.FL socket accepts a standard IPEX-I plug before ordering. The antenna covers 700–2700 MHz, supporting LTE Bands 1–5, 7, 8, 12, 13, 17, 20, 28, and NB-IoT \/ GPRS fallback bands.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cp class=\"q\"\u003eQ: How do I install the TX4G-FPC-9914 inside a device enclosure?\u003c\/p\u003e\n    \u003cp class=\"a\"\u003eA: Peel the 3M adhesive liner and press the FPC antenna firmly onto a clean, dry, non-metallic surface (plastic, glass, or wood) inside the enclosure. Avoid mounting on or near metal components — maintain at least 5 mm clearance from any metallic part to prevent signal shielding. Route the 120 mm RF1.13 cable to the module's U.FL socket and press the IPEX-I connector straight down until it clicks. No tools are required. For curved surfaces, the FPC substrate can be gently bent to conform without cracking.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cp class=\"q\"\u003eQ: What are the operating temperature and environmental limits?\u003c\/p\u003e\n    \u003cp class=\"a\"\u003eA: The TX4G-FPC-9914 is rated for an operating temperature range of −40 °C to +85 °C, suitable for both indoor and outdoor-adjacent deployments. The FPC substrate and 3M adhesive are resistant to humidity and mild vibration. The product is RoHS compliant. It is not rated for direct outdoor exposure or immersion (no IP rating); for harsh outdoor environments, install inside a sealed enclosure rated IP65 or higher.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cp class=\"q\"\u003eQ: Can the cable length or connector type be customised?\u003c\/p\u003e\n    \u003cp class=\"a\"\u003eA: Yes. Cdsenet (Ebyte) offers OEM\/ODM customisation for cable length, connector type (SMA, MMCX, MHF4, etc.), and FPC dimensions. Contact our sales team with your project specifications. Minimum order quantities apply for custom configurations. Standard stock units ship with a 120 mm RF1.13 cable and IPEX-I connector.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cp class=\"q\"\u003eQ: What is the difference between VSWR ≤ 2.0 and ≤ 1.5, and does it matter for my application?\u003c\/p\u003e\n    \u003cp class=\"a\"\u003eA: VSWR (Voltage Standing Wave Ratio) measures impedance mismatch between the antenna and the transmission line. A VSWR of ≤ 2.0 corresponds to a return loss of ≈ −10 dB and an RF energy transmission efficiency of \u0026gt; 89% — acceptable for most commercial IoT and LTE applications. A VSWR of ≤ 1.5 (return loss ≈ −14 dB, efficiency \u0026gt; 96%) is preferred for high-power or mission-critical RF links. For standard 4G data modems and NB-IoT sensors, ≤ 2.0 is sufficient and cost-effective.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c\/div\u003e","brand":"cdsenet","offers":[{"title":"Default Title","offer_id":45301877604454,"sku":"tx4g-fpc-9914","price":0.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX4G-FPC-9914-_1_800x800_v2.jpg?v=1773986682","url":"https:\/\/cdsenet.store\/products\/tx4g-fpc-9914-high-gain-5dbi-4g-lte-internal-fpc-antenna","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}