The outer conductor slot technology is the core of radial leaky cables; the size, shape, and arrangement of the slots determine their radiation characteristics. 5G fission radiation mode technology, by changing the continuous slotting approach and employing patented fission slot technology, solves the problem of compatible coverage for multi-band signals from 2G to 5G. High-speed cross-polarized leaky cables and MIMO systems are a technical solution with characteristics such as wide frequency range, high polarization purity, and excellent system loss balance performance, which can improve the 4T4R transmission rate of leaky cables in rail transit scenarios.
The operating frequency band of leaky cables has expanded from the traditional hundreds of megahertz to higher frequency bands. Customized leaky cables support frequencies up to 6GHz, while mid-to-high frequency leaky cable solutions choose 2.4GHz or 5GHz. Low-loss leaky cables use segmented coupling technology to optimize 5G high-frequency radiation performance and employ a gradient slotting design to increase coupling loss at the beginning and reduce loss at the end, increasing the leaky cable coverage distance by 1.5 times.