EN
EN
Material & Craft: 6.35mm solid corrugated copper outer conductor with CCA core
Technical Advantage: 84% velocity & closed-cell foam PE prevents moisture ingress
Performance: 2kW peak power handling with >90dB RF shielding
The 1/4" corrugated feeder cable from Zhenjiang Worldpeak Communication Co., Ltd. is a high-performance 50 ohm RF feeder cable designed for critical wireless communication infrastructure. Featuring a solid annular corrugated copper outer conductor, a 4.60 mm closed-cell foam PE dielectric, and a 1.40 mm copper-clad aluminum center conductor, this 1/4" corrugated feeder cable delivers exceptional signal integrity with low attenuation across medium-to-long transmission runs. Built with a heavy-duty 8.1 mm UV-resistant Black PE jacket, this 50 ohm feeder cable ensures long-term weather resistance and physical durability for base stations, broadcast transmission, and tower-mounted antennas.
In modern wireless communication networks, signal integrity and hardware reliability are non-negotiable. The 1/4" corrugated feeder cable engineered by Zhenjiang Worldpeak Communication Co., Ltd. serves as an essential transmission medium designed specifically for permanent outdoor and harsh-environment deployments.
Unlike standard braided coaxial cables that suffer from high signal loss and RF leakage, this specialized 50 ohm feeder cable utilizes a solid annular corrugated copper tube as its outer conductor. This continuous copper shield creates a high-grade electromagnetic barrier exceeding 90 dB shielding effectiveness, preventing both external signal interference and signal radiation.
The internal construction of the 1/4" corrugated feeder cable integrates a high-expansion closed-cell foam polyethylene (PE) dielectric surrounding a copper-clad aluminum (CCA) inner conductor. This specific material combination balances electrical conductivity, high velocity of propagation (84%), and structural lightness. The closed-cell foam architecture prevents moisture ingress along the line, ensuring that the electrical properties remain stable even if the outer jacket experiences external physical damage. Protected by an 8.1 mm high-density black polyethylene jacket, this RF feeder cable withstands extreme thermal variations, heavy UV exposure, and mechanical stress in demanding outdoor installations.
Solid Corrugated Copper Outer Shield: Provides continuous 100% electromagnetic shielding with shielding effectiveness exceeding 90 dB for ultra-clean signal transmission.
Low Attenuation Performance: Superior dielectric and copper construction achieve minimal insertion loss (28.0 dB/100m at 900 MHz) compared to traditional foil-and-braid coaxial cables.
Moisture-Resistant Dielectric Structure: High-density 4.60 mm closed-cell foam PE prevents longitudinal water migration along the inner core.
Controlled Flexibility: Annular corrugation allows a tight 32 mm installation bend radius without crushing or kinking the outer conductor wall.
Heavy-Duty Weatherproof Jacket: The 8.1 mm black polyethylene outer sheath delivers long-term UV protection and thermal resistance from -40°C to +85°C.
Optimized Center Conductor: The 1.40 mm copper-clad aluminum center conductor optimizes skin effect conductivity at high radio frequencies while significantly reducing total cable mass.
Traditional flexible coaxial lines (such as RG-series or LMR-series cables) rely on metal foils and braided wires for shielding. Over time, physical vibration, wind loads, and thermal expansion cause tiny gaps in braided shields, resulting in increased RF attenuation and elevated passive intermodulation (PIM).
The 1/4" corrugated feeder cable manufactured by Zhenjiang Worldpeak Communication Co., Ltd. eliminates these failure points by incorporating a seamless, solid copper tube. The physical integrity of the copper wall guarantees constant impedance matching, higher power-handling capacity (up to 2.0 kW peak power), and long-term attenuation stability over decades of operation.
At high radio frequencies, electrical current flows primarily along the outer surface of a conductor—a phenomenon known as the skin effect. By pairing a high-conductivity copper surface layer with a lightweight aluminum inner core, this RF feeder cable delivers the high-frequency RF performance of solid copper at a fraction of the weight (0.09 kg/m). This structural balance reduces mechanical stress on tower structures and mounting hardware without sacrificing signal range.
| Parameter | Specification | Technical Notes |
| Impedance | 50 ohm | Standard nominal impedance |
| Primary Keyword | 1/4" corrugated feeder cable | High-performance RF transmission |
| Inner Conductor | 1.40 mm Copper-Clad Aluminum | Low weight, high skin-depth conductivity |
| Dielectric Material | 4.60 mm Foam PE | Closed-cell foam structure |
| Outer Conductor | 6.35 mm Corrugated Copper | Solid annular corrugated tube |
| Outer Jacket | 8.1 mm Black PE | UV-resistant and weather-proof |
| Velocity of Propagation | 84% | Nominal velocity index |
| Capacitance | 78.0 pF/m | Reference dielectric value |
| DC Loop Resistance | 11.0 ohm/km | Low direct-current resistance |
| Shielding Effectiveness | > 90 dB | Solid tube RF isolation |
| Peak Power Rating | 2.0 kW | High power handling threshold |
| Voltage Withstand | 1000V DC | Dielectric strength limit |
| Minimum Bend Radius | 32 mm | Single-bend installation radius |
| Cable Weight | 0.09 kg/m | Nominal shipping mass |
| Operating Temperature | -40°C to +85°C | Extreme environment operating range |
| Attenuation @ 900 MHz | 28.0 dB/100m | Nominal loss at cellular bands |
| Attenuation @ 2.4 GHz | 48.0 dB/100m | Nominal loss at ISM / Wi-Fi bands |
| Compatible Connectors | N-Type, 4.1/9.5 Mini DIN | Industry standard interface options |
The primary role of the 1/4" corrugated feeder cable from Zhenjiang Worldpeak Communication Co., Ltd. is connecting ground station equipment and remote radio heads (RRH) to top-mounted cellular antennas. The rugged 50 ohm feeder cable structure ensures low loss over vertical jumper runs.
Used extensively as secondary transmission lines for FM radio and VHF television transmitters, where continuous high power handling and signal purity are required across long feeder runs.
Serves as an essential riser cable for in-building DAS installations. Its compact 8.1 mm outer diameter and 32 mm bend radius allow smooth routing through crowded conduit runs, cable trays, and utility shafts across multi-story commercial facilities.
The solid copper outer shield and corrosion-resistant black PE jacket make this RF feeder cable an excellent choice for offshore oil platforms, maritime vessels, and coastal communication towers subjected to heavy salt spray.
Selecting the 1/4" corrugated feeder cable engineered by Zhenjiang Worldpeak Communication Co., Ltd. provides clear financial and operational advantages for system integrators, telecom operators, and distributors:
Reduced Total Cost of Ownership (TCO): The robust corrugated copper shield dramatically lowers maintenance calls and cable replacements caused by environmental degradation or shield breakdown.
Lower Shipping and Handling Costs: Weighing only 0.09 kg/m, this lightweight 50 ohm feeder cable lowers transport costs and simplifies manual handling during high-tower installations.
Custom OEM & ODM Manufacturing: Zhenjiang Worldpeak Communication Co., Ltd. offers customized cable lengths, sequential jacket printing, specialized reel packaging, and pre-terminated factory cable assemblies equipped with high-precision N-Type or 4.1/9.5 Mini DIN connectors.
Streamlined Quality Control: Every batch manufactured by Zhenjiang Worldpeak Communication Co., Ltd. undergoes rigorous VSWR and mechanical continuity testing to guarantee turnkey field performance.
Q: How does this 1/4" corrugated feeder cable differ from standard LMR-series coaxial cables?
A: While LMR-series cables use flexible foil-and-braid composite shields, this 1/4" corrugated feeder cable features a continuous, solid corrugated copper outer conductor. The solid tube construction offers far superior RF shielding (>90 dB), lower signal attenuation, higher peak power handling, and much better long-term physical durability in harsh outdoor environments.
Q: What installation precautions should be taken regarding the bend radius?
A: The 1/4" corrugated feeder cable has a strict minimum installation bend radius of 32 mm. Bending the cable beyond this limit can deform or kink the corrugated outer conductor, causing permanent mechanical damage and impedance discontinuities that compromise signal performance.
Q: Does Zhenjiang Worldpeak Communication Co., Ltd. supply custom pre-terminated cable assemblies?
A: Yes. Zhenjiang Worldpeak Communication Co., Ltd. supplies factory-terminated and fully tested cable assemblies fitted with N-Type, 4.1/9.5 Mini DIN, or other specified connectors to speed up field deployment and ensure optimal weather-sealing.
