Jia-Wen's paper presented in APMC 2019, Singapore, Dec. 2019
J.-W. Hsu, F.-P. Lai, and Y.-S. Chen, “Calibration-free chipless radiofrequency identification tags with enhanced data capacity,” 2019 Asia-Pacific Microwave Conference (APMC 2019), Singapore, Dec. 2019, pp. 1‒3.