Demonstration-EM Optimization Lab

:::

Demonstration

Our journal paper published in IEEE Access, Sept. 2022

J.-W. Hsu, F.-P. Lai, and Y.-S. Chen, “System development of calibration-free 20.7-bit chipless RFID without iterative optimization of tag configurations,” IEEE Access, vol. 10, pp. 94431–94442, 2022.
Our journal paper published in IEEE TAP, Aug. 2022

W.-S. Li, C.-Z. Peng, F.-P. Lai, P.-S. Lai, and Y.-S. Chen, “Independent component analysis for the multi-tag detection of frequency-coded chipless RFID,” IEEE Trans. Antennas Propag., vol. 70, no. 8, pp. 7057–7072, Aug. 2022.
Our journal paper published in IEEE TAP, July 2022

Y.-H. Cho, F.-P. Lai, and Y.-S. Chen, “Orientation-insensitive chipless RFID achieved in multiple rotational degrees of freedom,” IEEE Trans. Antennas Propag., vol. 70, no. 7, pp. 5266–5277, Jul. 2022.
A conference paper presented in ISAP 2021

W.-S. Li, K.-C. Liu, F.-P. Lai, and Y.-S. Chen, “Multi-tag detection using multivariate statistical analysis for frequency-coded chipless RFID,” 2021 International Symposium on Antennas and Propagation (ISAP 2021), Taipei, Taiwan, Oct. 2021, pp. 1‒2.
Another conference paper presented in ISAP 2021

F.-P. Lai, H. Chang, and Y.-S. Chen, “Chipless radiofrequency identification using Pauli matrix decomposition in unlicensed bands,” 2021 International Symposium on Antennas and Propagation (ISAP 2021), Taipei, Taiwan, Oct. 2021, pp. 1‒2.
Presentation regarding chipless RFID in FuTEX 2021

Our results about chipless RFID received 2021 Future Tech Awards. This is a presentation regarding the technology we implemented.
Demonstration of multi-tag detection of chipless RFID

Detecting multiple chipless tags that are closely arranged is a challenging process. Previous studies regarding this topic have attempted three frameworks: signal processing, comparisons with database, and Space-division multiple access (SDMA). In this video, we present a new detection technique that integrates signal processing and SDMA. This technique is derived from Independent Component Analysis (ICA), separating blind sources without setting constraints to time difference of arrivals or spectrum arrangement.
Demonstration of automatic topology generation of calibration-free chipless RFID tags

We aim at bridging the gap between theoretical high-capacity chipless RFID and real-world applications. When the data capacity is enhanced as high as 30 bits, billions of chipless tags need to be addressed to accommodate each ID. Synthesizing the resonant frequencies of large numbers of tags requires significant time and efforts by performing iterative full-wave simulations. Moreover, when radar cross sections are implemented as a frequency signature, detecting these tags requires an additional run of calibration.

In this video, we demonstrate a new design technique that creates 1.68 million calibration-free chipless tags without performing iterative simulations. The performance is validated through residual plots and the measurement of a 20.7-bit chipless RFID system.
Demonstration of orientation-insensitive chipless RFID

While earlier studies concerning orientation-insensitive chipless RFID achieve robust detection in one dimension, this study extends the capability to multiple rotational degrees of freedom.
Our journal paper published in IEEE TAP, Mar. 2021

Jin-An Lin , Jyun-Yi Jhang, Fei-Peng Lai, Bo-Lin Lin, Yi-Min Jhang, and Yen‐Sheng Chen, “Analysis of calibration-free detection techniques for frequency-coded chipless RFID,” IEEE Trans. Antennas Propag., vol. 69, no. 3, pp. 1681–1691, Mar. 2021.

Go Top