A Planar Dual-Band Coupled-Line Balun With Impedance Transformation and High Isolation. - Yongle Wu; Lidan Yao; Weiwei Zhang 004; Weimin Wang 008; Yuanan Liu (IEEE Access, 2016)

Compact Sequential Feeding Network With Quadruple Output Ports and Its Application for Wideband Circularly Polarized Antenna. - Meijun Qu; Li Deng 002; Mingxing Li; Lidan Yao; Shufang Li (IEEE Access, 2018)