Derivation And Calculation Of The Reflection Coefficient For The Single-Slot LCX

Leaky coaxial cable ( referred to as leakage cable ) have the characteristics of both a continuous antenna and transmission line, widely used in underground transport, mines and other closed or semi-closed domain space. With the future of intelligent superhighway, the internet of things, development of 4G mobile communication network, its characteristics requirements are also increasing, especially in the use of the frequency-band, and therefore,the use of the frequency band extension study will be a trend. Removing the resonance point can extend the use of the frequency-band, and if we can get leaky coaxial reflection coefficient under a single slot, and then find the total reflection coefficient can be an effective way to remove the resonance point.First, a general introduction of the basic structure of leaky coaxial cable, and starting from the basic structure,describes some of the features,detailing two important electrical parameters of the coupling loss and transmission loss.Then,beginning with the principle of electromagnetic radiation under a single slot,the detailed study of the principles of electromagnetic radiation under periodic slotted was discussed, and focuses on the use of leaky coaxial cable frequency-band, and derivation and summarizes the main methods to the expansion of the use of the frequency-band.Finally, detail analysis of the reflection in the ease of a single slot,and deduce the reflection coefficient of the single-slot,given the analysis of the relationship between the calculated results and the specific examples and slotted structural parameters. There is a detail analysis for the derivation of the total reflection coefficient of the leaky coaxial cable, using the foraula gives some methods to remove the resonance point for the further expansion of the use of the band laid a theoretical foundation.