Southeast University

Tiejun Cui

Di Bao

Jiemin Wu

Guodong Bai

Shuo Liu

Kai Lu

Chenchen Li

An on-chip dual-mode transmission line with an spoof surface plasmon based on a balun includes a dual-mode transmission line located in the intermediate, the balun structures symmetrically located at both terminals of the dual-mode transmission line, and pad structures and excitation portions located outside the balun structures. The dual-mode transmission line comprises two metal strip lines that are the same in structure and parallel to each other, and the branches located between the two metal strip lines. The dual-mode transmission line can simultaneously support the transmissions of the odd-mode spoof surface plasmon signal and the even-mode spoof surface plasmon signal, and is not only suitable for III-V chips such as gallium arsenide and silicon nitride, but also suitable for technologies such as other chips and printed circuit boards.

On-chip dual-mode transmission line with spoof surface plasmon based on balun

A direct radiation wireless digital communication system based on a digital programmable metamaterial, including a transmitting system and a receiving system, where information transmitted by the transmitting system is loaded to a programmable metamaterial, and is directly radiated into free space in a form of an ever-changing far-field pattern under the illumination of a feeding antenna; the receiving system collects electric field values received by receiving antennas located at different positions of a far-field region to obtain a far-field pattern, and recovers the transmitted original information according to a mapping relationship between the far-field pattern and a coding sequence. The system does not require a digital-to-analog conversion module and a frequency mixing module. The system also features an inherent secrete communication in the physical level which protects the transmitted information from being intercepted at a single point or any random points, and has the capabilities of self-adaption and self-perception.

Direct radiation wireless digital communications system and method based on digital coding metamaterial

Growing community of inventors

Nanjing, China

Tiejun Cui