Chunlei Wang

A 10- to 21-GHz, low-cost, multifrequency, and full-duplex phased-array antenna system

Tae-Yeoul Yun, Kai Chang, Ming-Yi Li, 2002 .

Circularly polarised truncated-corner square patch microstrip rectenna for wireless power transmission

Kai Chang, Young-Ho Suh, Y. Suh, 2000 .