An Injection-Locked-Oscillation-Based SIW Shorted Coaxial-Line Active Sensor for Detecting the MNPs Content in Water-Based Ferrofluid. - Jie Huang; Qian Zhao 017; Yongfeng Wu; Shiheng Hu; Lang Yang; Hongtao Yue (IEEE Trans. Instrum. Meas., 2025)