基于基片集成波导互连的16进制正交振幅调制高速传输系统

为了进一步提高数据的传输速率,采用16进制的正交振幅调制(16QAM)方式,设计实现了一种新颖的基于基片集成波导互连的高速数据传输系统.基片集成波导经设计加工和测试,其带宽为14~28GHz,通带内插损约为0.5dB;16QAM互连系统经先进系统设计(ADS)软件仿真验证,得到了清晰的眼图及星座图,最大传输速率可达到20Gb/s,是传统基片集成波导(SIW)互连系统的数据传输速率的4倍.因此,采用16QAM的SIW高速互连系统与传统的采用载波调制方式的SIW互连系统相比,可显著增加SIW的频带利用率,进而提高系统的数据传输速率.

16QAM High-Speed Transmission System Using Substrate Integrated Waveguide-Type Interconnect

To improve the data transmission rate, in this paper a novel design and implementation of a high speed interconnect system was proposed based on SIW(substrate integrate waveguide) using hexadecimal quadrature amplitude modulation (16QAM) technique. The inserted loss of the fabricated SIW is appoximately 0.5 dB within a bandwidth of 14 to 28 GHz; the maximum data rate of the 16QAM interconnection system is 20 Gb/s, and a clear eye diagram and constellation diagram is obtained through simulation in ADS(advanced design system). The data rate of the proposed 16QAM high speed interconnect system is 4 times than that of the conventional system using high frequency carrier modulate method. Therefore, the proposed 16QAM SIW based system significantly improves the bandwidth efficiency of SIW and the data transmission rate of the interconnect system.