基于LTCC技术的微型化巴伦设计

摘要

基于低温共烧陶瓷(LTCC)技术设计了一种微型化巴伦(Balun).微型化的Balun采用Marchand Balun结构和LTCC的立体集成结构,Balun内部带状线利用宽边带状线结构,采用一种螺旋化方式,减小巴伦的体积.该巴伦的带宽为2.4～2.5 GHz,尺寸仅为2.0 mm×l.25 mm×0.8 mm,该巴伦不仅插损小,而且平衡端口输出具有良好的幅值平衡和180°相位差.%Based on LTCC(Low Temperature Co-fired Ceramic) technology to design a kind of miniaturization Balun.This paper designs the miniaturization of Balun use Marchand Balun structure and three-dimensional integrated structure of LTCC,inside the Balun stripline using wide-brimmed stripline structure,adopt the way of spiral,this structure can reduce the volume balance.The balun's bandwidth is 2.4 GHz to 2.5 GHz,size is 2.0 mm×1.25 mm×0.8 mm,the balance not only small insertion loss,but also the balance port output has a good amplitude balance and 180° phase difference.