Davis Advanced RF Technologies Lab

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» [10 Apr 2019] » Dr. Xiaomeng Gao receives the Best Young Professional Paper Award at WAMICON2019
» [01 Feb 2019] » DART Lab to Advance to Phase 3 of the DARPA SPAR Program
» [23 May 2018] » Songjie Defended his PhD Degree
» [20 Jan 2018] » DART Lab to Advance to Phase 2 of the DARPA SPAR Program
» [07 Mar 2017] » DART Lab Awarded NSF STTR Phase II Project on Developing a Radar-based Wearable Heart Health Monitoring Device
» [08 Nov 2016] » DART Lab to Participate in DARPA SPAR program

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Test a display math with equation number: \begin{equation} |\psi_1\rangle = a|0\rangle + b|1\rangle \end{equation} Is it O.K.?

Test a display math with equation number: Is it O.K.?

Test a display math with equation number: \begin{align} |\psi_1\rangle &= a|0\rangle + b|1\rangle \
|\psi_2\rangle &= c|0\rangle + d|1\rangle \end{align} Is it O.K.?

And test a display math without equaltion number: \begin{align*} |\psi_1\rangle &= a|0\rangle + b|1\rangle \
|\psi_2\rangle &= c|0\rangle + d|1\rangle \end{align*} Is it O.K.?

» [01 Jun 2018] » High-Efficiency mmW/THz Oscillator Designs - 1: Introduction
» [10 Jun 2018] » High-Efficiency mmW/THz Oscillator Designs - 2: Some Historic Perspectives
» [23 Oct 2018] » High-Efficiency mmW/THz Oscillator Designs - 3: Synthesizing an Oscillator from the Complex Voltage Gain A

test image test

  1. [Accepted]   Dashuai Wang, Wei Li, Xiaoguang Liu, Nan Li, Junxiong Zhang, and Chunlong Zhang, "Environmental Perception and Autonomous Obstacle Avoidance - A Deep Learning and Depth Camera Combined Solution," Computers and Electronics in Agriculture, vol. , no. , pp. , Aug, 2020.   DOI: |
  2. [Accepted]   Taejun Lim, James Chen, Akash Anand, Xiaoguang Liu, and Yongshik Lee, "Design Method of Varactor-tuned Planar Bandpass Filters with Wide Tunable Frequency Range and Single Bias Control," IEEE Transactions on Circuits and Systems II, vol. , no. , pp. , , 2020.   DOI: |
  3. [Accepted]   Jianfeng Jiang, Yingsong Li, Lei Zhao, and Xiaoguang Liu, "Wideband MIMO Directional Antenna Array with a Simple Meta-materials Decoupling Structure for X-band Applications," Applied Computational Electromagnetics Society Journal, vol. , no. , pp. , , 2020.   DOI: |
  4. Xiaohu Wu, Yingsong Li, and Xiaoguang Liu, "High-Order Dual-Port Quasi-Absorptive Microstrip Coupled-Line Bandpass Filters," IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 4, pp. 1462-1475, Apr, 2020.   DOI:10.1109/TMTT.2019.2955692 |
  5. Yue Dong, Yingsong Li, Chow-Yen-Desmond Sim, and Xiaoguang Liu, "A Dipole-Type Millimeter-Wave Antenna with Directional Radiation Characteristics," International Journal of RF and Microwave Computer-Aided Engineering, vol. 30, no. , pp. e22059, Feb, 2020.   DOI:10.1002/mmce.22059 |
  6. Celia Gomez-Molina, Alejandro Pons-Abenza, James Do, Fernando Quesada-Pereira, Xiaoguang Liu, Juan Sebastian Gomez-Diaz, and Alejandro Alvarez-Melcon, "Wideband Bandpass Filters Using a Novel Thick Metallization Technology," IEEE Access, vol. 8, no. 1, pp. 34962-34972, , 2020.   DOI:10.1109/ACCESS.2020.2974552 |
  7. Alejandro Alvarez-Melcon, Xiaohu Wu, Jiawei Zang, Xiaoguang Liu, and J. Sebastian Gomez-Diaz, "Coupling Matrix Representation of Nonreciprocal Filters Based on Time Modulated Resonators," IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 12, pp. 4751-4763, Dec, 2019.   DOI:10.1109/TMTT.2019.2945756 |
  8. Xiaohu Wu, Xiaoguang Liu, Mark D. Hickle, Dimitrios Peroulis, Juan Sebastian Gomez-Diaz, and Alejandro Alvarez Melcon, "Isolating Bandpass Filters Using Time-Modulated Resonators," IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 6, pp. 2331-2345, Jun, 2019.   DOI:10.1109/TMTT.2019.2908868 |
  9. Xiaowei Zhang, Tao Jiang, Yingsong Li, and Xiaoguang Liu, "An Off-grid DOA Estimation Method using Proximal Splitting and Successive Nonconvex Sparsity Approximation," IEEE Access, vol. 7, no. , pp. 66764-66773, May, 2019.   DOI:10.1109/ACCESS.2019.2917309 |
  10. Jiawei Zang, Diego Correas-Serrano, James T.S. Do, Xiaoguang Liu, Alejandro Alvarez-Melcon, and J. Sebastian Gomez-Diaz, "Nonreciprocal wavefront engineering with time-modulated gradient metasurfaces," Physical Review Applied, vol. 11, no. 5, pp. 22572, May, 2019.   DOI:10.1103/PhysRevApplied.11.054054 |
  11. Wanlu Shi, Yingsong Li, Luyu Zhao, Xiaoguang Liu, "Controllable Sparse Antenna Array for Adaptive Beamforming," IEEE Access, vol. 7, no. , pp. 6412-6423, Jan, 2019.   DOI:10.1109/ACCESS.2018.2889877 |
  12. Qingyang Wu, Carlos Feres, Daniel Kuzmenko, Zhi Ding, Zhou Yu, Xin Liu, Xiaoguang Liu, "Deep Learning Based RF Fingerprinting for Device Identification and Wireless Security," IET Electronic Letters, vol. 54, no. 24, pp. 1405–1407, Nov, 2018.   DOI:10.1049/el.2018.6404 |
  13. Bo Yu, Xuan Ding, Hai Yu, Yu Ye, Xiaoguang Liu, and Qun Jane Gu, "Ring-Resonator-Based Sub-THz Dielectric Sensor," IEEE Microwave and Wireless Components Letters, vol. 28, no. 11, pp. 1531-1309, Nov, 2018.   DOI:10.1109/LMWC.2018.2867092 |
  14. Hao Wang, Jingjun Chen, James T.S. Do, Hooman Rashtian, Xiaoguang Liu, "High-Efficiency Millimeter-wave Single-ended and Differential Fundamental Oscillators in CMOS," IEEE Journal of Solid State Circuits, vol. 53, no. 8, pp. 2151-2163, Aug, 2018.   DOI:10.1109/JSSC.2018.2837863 |
  15. Kai Yu, Yingsong Li, Xiaoguang Liu, "Mutual Coupling Reduction of Microstrip Patch Antenna Array Using Modified Split Ring Resonator Metamaterial Structures," ACES Journal, vol. 33, no. 7, pp. 758-763, Jul, 2018.   DOI: |
  16. M. Naimul Hasan, Shahrokh Saeedi, Qun Jane Gu, Hjalti H. Sigmarsson, Xiaoguang Liu, "Design Methodology of N-Path Filters With Adjustable Frequency, Bandwidth, and Filter Shape," IEEE Transactions on Microwave Theory and Techniques Applications, vol. 66, no. 6, pp. 2775-2790, Jun, 2018.   DOI:10.1109/TMTT.2018.2809573 |
  17. Bo Yu, Yu Ye, Xuan Ding, Yuhao Liu, Zhiwei Xu, Xiaoguang Liu, and Qun Jane Gu, "Ortho-Mode Sub-THz Interconnect Channel for Planar Chip-to-chip Communications," IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 4, pp. 1864-1873, Apr, 2018.   DOI:10.1109/TMTT.2017.2779496 |
  18. Yuhao Liu, Jiansong Liu, Bo Yu, and Xiaoguang Liu, "A Compact Single-Cantilever Multicontact RF-MEMS Switch With Enhanced Reliability," IEEE Microwave and Wireless Components Letters, vol. 28, no. 3, pp. 191-193, Mar, 2018.   DOI:10.1109/LMWC.2018.2800523 |
  19. Yuhao Liu, Yusha Bey, Xiaoguang Liu, "High-Power High-Isolation RF-MEMS Switches with Enhanced Hot-switching Reliability Using A Shunt Protection Technique," IEEE Transactions on Microwave Theory and Techniques, vol. 65, no. 9, pp. 3188-3199, Apr, 2017.   DOI:10.1109/TMTT.2017.2687427 |
  20. Y. Wang, B. Tobias, Y.-T. Chang, J.-H. Yu, M. Li, F. Hu, M. Chen, M. Mamidanna, T. Phan, A.-V. Pham, J. Gu, X. Liu, Y. Zhu, C.W. Domier, L. Shi, E. Valeo, G.J. Kramer, D. Kuwahara, Y. Nagayama, A. Mase, and N.C. Luhmann Jr., "Millimeter-wave Imaging of Magnetic Fusion Plasmas, Technology Innovations Advancing Physics Understanding," Nuclear Fusion, vol. 57, no. , pp. 29703, Mar, 2017.   DOI:10.1088/1741-4326/aa5e30 |
  21. Md. Naimul Hasan, Jane Q. Gu, and Xiaoguang Liu, "Tunable Blocker-Tolerant RF Front-end Filter with Dual Adaptive Notches for Reconfigurable Receivers," IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 12, pp. 4419-4433, Dec, 2016.   DOI:10.1109/TMTT.2016.2623707 |
  22. Akash Anand and Xiaoguang Liu, "Reconfigurable Planar Capacitive Coupling in Substrate-Integrated Coaxial-Cavities Filters," IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 8, pp. 2548-2560, Aug, 2016.   DOI:10.1109/TMTT.2016.2580140 |
  23. Yuhao Liu, Yusha Bey, and Xiaoguang Liu, "Extension of the Hot-Switching Reliability of RF-MEMS Switches Using A Series Contact Protection Technique," IEEE Transactions on Microwave Theory and Techniques Applications, vol. 64, no. 10, pp. 3151 - 3162, Oct, 2016.   DOI:10.1109/TMTT.2016.2598170 |
  24. Bo Yu, Yuhao Liu, Yu Ye, Xiaoguang Liu, and Qun Jane Gu, "Low-loss and Broadband G-Band Dielectric Interconnect for Chip-to-Chip Communication," IEEE Microwave and Wireless Components Letters, vol. 26, no. 7, pp. 478-480, Jul, 2016.   DOI:10.1109/LMWC.2016.2574837 |
  25. Bo Yu, Yuhao Liu, Yu Ye, Junyan Ren, Xiaoguang Liu, and Qun Jane Gu, "High Efficiency Micromachined Sub-THz Channels for Low Cost Interconnect for Planar Integrated Circuits," IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 1, pp. 96-105, Jan, 2016.   DOI:10.1109/TMTT.2015.2504443 |
  26. Young Seek Cho, Himanshu Joshi, Xiaoguang Liu, Hjalti H. Sigmarsson, William J. Chappell, and Dimitrios Peroulis, "Development of 6–12 GHz evanescent–mode two–pole low–loss tunable bandpass filter," Microwave and Optical Technology Letters, vol. 57, no. 10, pp. 2418-2422, Oct, 2015.   DOI:10.1002/mop.29356 |
  27. Joshua Small, Adam Fruehling, Anurag Garg, Xiaoguang Liu, and Dimitrios Peroulis, "Real-time DC-dynamic biasing method for switching time improvement in severely underdamped fringing-field electrostatic MEMS actuators," Journal of Visualized Experiments, vol. 90, no. 90, pp. e51251, Aug, 2014.   DOI:10.3791/51251 |
  28. Akash Anand, Joshua Small, Dimitrios Peroulis, and Xiaoguang Liu, "Theory and Design of Octave Tunable Filters with Lumped Tuning Elements," IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 12, pp. 4353-4364, Dec, 2013.   DOI:10.1109/TMTT.2013.2287674 |
  29. Kenle Chen, Xiaoguang Liu, and Dimitrios Peroulis, "Widely-Tunable High-Efficiency Power Amplifier with Ultra-Narrow Instantaneous Bandwidth," IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 12, pp. 3787-3797, Dec, 2012.   DOI:10.1109/TMTT.2012.2220561 |
  30. Joshua Small, Adam Fruehling, Anurag Garg, Xiaoguang Liu, and Dimitrios Peroulis, "DC-dynamic biasing for >50 switching time improvement in severely under-damped fringing-field electrostatic MEMS actuators," Journal of Micromechanics and Microengineering, vol. 22, no. 12, pp. 125029, Dec, 2012.   DOI:10.1088/0960-1317/22/12/125029 |
  31. Joshua Small, Wasim Irshad, Adam Fruehling, Anurag Garg, Xiaoguang Liu, and Dimitrios Peroulis, "Electrostatic fringing-field actuation for pull-in free RF-MEMS analogue tunable resonators," Journal of Micromechanics and Microengineering, vol. 22, no. 9, pp. 095004, Sep, 2012.   DOI:10.1088/0960-1317/22/9/095004 |
  32. Xiaoguang Liu, Linda P. B. Katehi, William J. Chappell, and Dimitrios Peroulis, "Power Handling of High-Q MEMS Tunable Evanescent-mode Resonators and Filters," IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 2, pp. 270-283, Feb, 2012.   DOI:10.1109/TMTT.2011.2176136 |
  33. Xiaoguang Liu, Joshua Small, David Berdy, Linda Katehi, William J. Chappell, and Dimitrios Peroulis, "Impact of Mechanical Vibration on the Performance of RF MEMS Evanescent-mode Tunable Resonators," IEEE Microwave and Wireless Component Letters, vol. 21, no. 8, pp. 406-408, Aug, 2011.   DOI:10.1109/LMWC.2011.2160159 |
  34. Kenle Chen, Xiaoguang Liu, Andrew Kovacs, and Dimitrios Peroulis, "Anti-Biased Electrostatic RF MEMS Varactors and Filters," IEEE Transactions on Microwave Theory and Techniques, vol. 58, no. 12, pp. 3971-3981, Dec, 2010.   DOI:10.1109/TMTT.2010.2088135 |
  35. Xiaoguang Liu, Linda P. B. Katehi, and Dimitrios Peroulis, "Novel Dual-Band Microwave Filter using Dual-Capacitively-Loaded Cavity Resonators," IEEE Microwave and Wireless Component Letters, vol. 20, no. 11, pp. 610-612, Nov, 2010.   DOI:10.1109/LMWC.2010.2059696 |
  36. Xiaoguang Liu, Linda P. B. Katehi, William J. Chappell, and Dimitrios Peroulis, "High-Q Tunable Microwave Cavity Resonators and Filters using SOI-based RF MEMS Tuners," IEEE/ASME Journal of Microelectromechanical Systems, vol. 19, no. 4, pp. 774-784, Aug, 2010.   DOI:10.1109/JMEMS.2010.2055544 |