You are here

Conference

Conference papers

 

Shangyi Chen and Nima Ghalichechian “The Design of High-Responsivity Millimeter Wave Imager Using Vanadium Dioxide Microbolometers”, at The 12h European Conference on Antennas and Propagation (EuCAP), London, UK, April 9-13, 2018.

Behnam Ghassemiparvin and Nima Ghalichechian “W-Band True-Time Delay Phase Shifters Using Paraffin Microactuators”, at The 12h European Conference on Antennas and Propagation (EuCAP), London, UK, April 9-13, 2018.

Alejandro Johnson-Eusebio, Michael Klunk, Nima Ghalichechian “3D-Printed Slotted Waveguide Arrays at Ku Band”, Annual Government Microcircuit Applications & Critical Technology Conference (GOMACTech) , Miami, FL, March 12-15, 2018.

B. Ghassemiparvin, and Nima Ghalichechian, "Broadband Complex Permittivity Measurement of Paraffin Films at 26 GHz–1 THz Using Time Domain Spectroscopy" at 2017 IEEE International Symposium on Antennas and Propagation (APSURSI), San Diego, CA, 2017.

B. Ghassemiparvin, S. Shah, and N. Ghalichechian, "Novel Paraffin-based 100-GHz Variable Capacitors for Reconfigurable Antennas," at The 11th European Conference on Antennas and Propagation (EuCAP), Paris, France, 2017.

K. Keshtkaran and N. Ghalichechian, "60 GHz Capacitively Probe-Fed Patch Arrays with Suspended Elements," at The 11th European Conference on Antennas and Propagation (EuCAP), Paris, France, 2017.

B. P. Lough, B. Ghassemiparvin, and N. Ghalichechian, “RF Micro-Electro-Mechanical Pulmonary Artery Banding for Congenital Heart Diseases”, IEEE 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Orlando, FL, USA, August 17-20, 2016.

B. Ghassemiparvin and N. Ghalichechian, “Reconfigurable Millimeter-wave Antennas using Paraffin-Based MEMS Capacitors,” European Conference on Antennas and Propagation (EuCAP), Davos, Switzerland, April 10-15, 2016. http://dx.doi.org/10.1109/EuCAP.2016.7481595

K. Keshtkaran and N. Ghalichechian, “Suspended 60 GHz Phased Array Antenna With High Efficiency,” International Workshop on Antenna Technology (iWAT), Hilton Cocoa Beach, FL, Feb 29- Mar 2, 2016. http://dx.doi.org/10.1109/IWAT.2016.7434794

B. Ghassemiparvin and N. Ghalichechian, “Permittivity and Dielectric Loss Measurement of Paraffin for mW and THz Applications,” International Workshop on Antenna Technology (iWAT), Hilton Cocoa Beach, FL, Feb 29- Mar 2, 2016. http://dx.doi.org/10.1109/IWAT.2016.7434797

D. K. Papantonis, N. Ghalichechian and J. L. Volakis, “Tunable Band Rejection In A Tightly-Coupled Array Using Varactor Diodes,” International Workshop on Antenna Technology (iWAT), Hilton Cocoa Beach, FL, Feb 29-Mar 2, 2016.

V. Sanphuang, N. Ghalichechian, N. Nahar, J. L. Volakis, “Reconfigurable THz Array Employing Vanadium Dioxide,” URSI National Radio Science Meeting, Boulder, Colorado, January 6-9, 2016.

E. Yetisir, N. Ghalichechian and J. L. Volakis, “A Novel Array with 6:1 Bandwidth and 70° Scanning Using FSS Superstrate,” URSI National Radio Science Meeting, Boulder, Colorado, January 6-9, 2016.

E. Yetisir, N. Ghalichechian, J. Volakis, “Wideband & Wide Angle Scanning Array with Parasitic Superstrate”, IEEE Symposium on Antennas and Propagation  (APS), Vancouver, Canada, 17-22 July, 2015.

E. Alwan, N. Ghalichechian, J. Volakis, “Low Power Millimeter Wave Beamforming Transceiver System using On-Site Coding”, URSI CNC/USNC Joint Meeting, Vancouver, Canada, 17-22 July, 2015.

D. Papantonis, N. Ghalichechian, J. Volakis, “UWB Arrays With Tunable Band Rejection”, IEEE Symposium on Antennas and Propagation  (APS), Vancouver, Canada, 17-22 July, 2015.

V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis, “Bandwidth Reconfigurable THz Filter Employing Phase-Change Material”, IEEE Symposium on Antennas and Propagation  (APS), Vancouver, Canada, 17-22 July, 2015.

S. Sahin, N. Ghalichechian, N. Nahar, K. Sertel, “Lithographically-fabricated Ultrawideband Phased-Arrays for Agile mmW Connectivity”, URSI CNC/USNC Joint Meeting, Vancouver, Canada, 17-22 July, 2015.

D. Papantonis, N. Ghalichechian, J. Volakis, “Reconfigurable Ultra-Wideband Array with Tunable Band Rejection across a 7:1 Bandwidth”, IEEE-MTT International Microwave Symposium (IMS), Phoenix, AZ, 17-22 May, 2015, http://dx.doi.org/10.1109/mwsym.2015.7166828

L. Chau, J. G. Ho, X. Lan, G. Altvater, R. M. Young, N. El-Hinnawy, D. Nichols, J Volakis, N Ghalichechian., "Optically-controlled GeTe phase change switch and its applications in reconfigurable antenna arrays," Proceedings of SPIE- The International Society of Optical Engineering, Volume 9479, Baltimore, MD, April 20, 2015, http://dx.doi.org/10.1117/12.2179852 .

Loc Chau, James G. Ho, Xing Lan, Norma Riley, Robert M. Young, Nabil El-Hinnawy, Doyle Nichols, John Volakis, and Nima Ghalichechian, “Reconfigurable Antenna Aperture with Optically Controlled GeTe-Based RF Switches”, 40th Annual Government Microcircuit Applications & Critical Technology Conference (GOMACTech), St. Louis, MO, March 23-26, 2015.

D. Papantonis, M. Novak, N. Ghalichechian, John L. Volakis, “Conformal and Reconfigurable Ultra-wide-band Arrays”, 9th European Conference on Antennas and Propagation (EuCAP), Lisbon, Portugal, 12-17 April 2015.

J. L. Volakis, E. A. Alwan, D. Papantonis, M. Novak, N. Ghalichechian and W. Khalil, “Low Power Ultra-Wideband Digital Beamforming for UHF to Millimeter-Wave Applications”, 11th International Workshop on Antenna Technology (iWAT), Seoul, Korea, March 4-6, 2015 (invited keynote).

V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis, “Phase Change Materials for Reconfigurability in THz band,” in Proceedings of National Aerospace and Electronics Conference , Dayton, Ohio, June 25- 26, 2014.

V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis, “Phase Change Materials for Reconfigurable Systems,” 2104 IEEE AP-S/URSI-USNC Symposium, Memphis, Tennessee, July 6- 12, 2014, http://dx.doi.org/10.1109/USNC-URSI.2014.6955591

S. Sahin, N. Ghalichechian, K. Sertel, “Ultra-wideband, High-efficiency, On-chip mmW Phased Arrays with Wafer-level Vertical Integration,” IEEE AP-S/URSI-USNC Symposium, Memphis, Tennessee, July 6- 12, 2014, http://dx.doi.org/10.1109/USNC-URSI.2014.6955485

V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis, “Reconfigurable THz Filters with Integrated Micro-Heater,” IEEE AP-S/URSI-USNC Symposium, Memphis, Tennessee, July 6- 12, 2014, http://dx.doi.org/10.1109/APS.2014.6904613

N. Ghalichechian, J. Doane, W. Hong, K. Sertel, and J. Volakis,  “Characterization of SU-8 Using Terahertz Time-Domain Spectroscopy”, IEEE AP-S/URSI-USNC Symposium, Orlando, Florida. July 7- 13, 2013, http://dx.doi.org/10.1109/usnc-ursi.2013.6715324

M.I. Beyaz, M. McCarthy, N. Ghalichechian, and R. Ghodssi, "Photodiode Position Sensors for Integrated Feedback Control of a Long-Range Micropositioner", Proceedings of the 2008 IEEE Sensors Conference, Lecce, Italy, October 26-29, 2008, http://dx.doi.org/10.1109/icsens.2008.4716563

N. Ghalichechian, M. McCarthy, M. I. Beyaz, and R. Ghodssi, "Measurement and Modeling of Friction in Linear and Rotary Micromotors Supported on Microball Bearings,” proceedings of the 21th IEEE International Conference on Micro Electro Mechanical Systems," Tuscan, Arizona, Jan 13-17, 2008, http://dx.doi.org/10.1109/memsys.2008.4443704

M. I. Beyaz, N. Ghalichechian, and R. Ghodssi, "Towards an Autonomous Electrostatic Micromotor: Integrated Feedback Control,” proceedings of the 21th IEEE International Conference on Micro Electro Mechanical Systems," Tuscan, Arizona, Jan 13-17, 2008, http://dx.doi.org/10.1109/memsys.2008.4443698

M. I. Beyaz, N. Ghalichechian, and R. Ghodssi, "Toward Smart Micromachines with Integrated Feedback Control," International Semiconductor Device Research Symposium (ISRS 2007), College Park, MD, December 11 - 14, 2007, http://dx.doi.org/10.1109/isdrs.2007.4422471

M. I. Beyaz, N. Ghalichechian, A. Modafe, and R. Ghodssi, "Towards Feedback Control with Integrated Position Sensing in Micromachines," AVS 54th International Symposium, Seattle, WA, October 14-19, 2007.

N. Ghalichechian, A. Modafe, M. I. Beyaz, and R. Ghodssi, "A Rotary Micromotor Supported on Microball Bearings," The 14th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers '07), pp. 1123-1126, Lyon, France, June 10-14, 2007, http://dx.doi.org/10.1109/sensor.2007.4300332

N. Ghalichechian, A. Modafe, M. I. Beyaz, C. M. Waits, and R. Ghodssi, “Design and Fabrication of a Rotary, Electrostatic Micromotor Supported on Microball Bearings,” Sixth International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (Power MEMS ’06), pp. 227-230, Berkeley, CA, USA, Nov 29-Dec 1, 2006.

N. Ghalichechian, A. Modafe, M. I. Beyaz, and R. Ghodssi, “Chemical Mechanical Planarization of BCB Polymer Films: Effect of Cure Temperature”, AVS 53rd International Symposium, San Francisco, CA, November 12-17, 2006.

N. Ghalichechian, A. Modafe, A. Frey, J. H. Lang, and R. Ghodssi, “Dynamic Characterization of a Linear Variable-Capacitance Micromotor”, 2006 Solid-State Sensor, Actuator, and Microsystems Workshop, pp. 19-22, Hilton Head Island, SC, June 4-8, 2006.

A. Modafe, N. Ghalichechian, A. Frey, J. H. Lang, and R. Ghodssi, "Microball-Bearing-Supported Electrostatic Micromachines with Polymer Dielectric Films for Electromechanical Power Conversion," Fifth International Workshop on Micro Nano Technology for Power Generation and Energy Conversion Applications (Power MEMS ‘05), pp.173-6, Tokyo, Japan, November 28-30, 2005.

A. Modafe, N. Ghalichechian, and R. Ghodssi, “Multilevel Interconnection and Isolation for Electrostatic MEMS Using Embedded Benzocyclobutene in Silicon Process”, Twenty Second International VLSI Multilevel Interconnection (VMIC) Conference, Fremont, CA, October 4-6, 2005 (invited paper).

A. Modafe, N. Ghalichechian, J. H. Lang, and R. Ghodssi, "A Microball-Bearing-Supported Linear Electrostatic Micromotor with Benzocyclobutene Polymer Insulating Layers," The 13th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers '05), pp. 693-6, Seoul, Korea, June 5-9, 2005, http://dx.doi.org/10.1109/sensor.2005.1496511

Nima Ghalichechian, Alireza Modafe, Paolo Lazzeri, Victor Micheli, Mariano Anderle, and Reza Ghodssi, "Characterization of Benzocyclobutene and Chromium-gold Film Interface for Application in Silicon Micromachining," Material Research Society 2005 Spring Meeting, San Francisco, CA, March 28-April 1, 2005.

A. Modafe, N. Ghalichechian, and R. Ghodssi, "Embedded Benzocyclobutene Islands in Silicon (EBIS) Process for Fabrication of Electrostatic Microelectromechanical Devices," Materials Research Society 2005 Spring Meeting, San Francisco, CA, March 28-April 1, 2005.

A. Modafe, N. Ghalichechian, and R. Ghodssi, “BCB-Based  Linear  Micromotor  Supported  on Microball  Bearings:  Design  Concepts,  Characterization,  and  Fabrication  Development”, American  Vacuum   Society   51st  International  Symposium,  Anaheim,  CA,  November 14-19, 2004.

X. Tan, A. Modafe, R. Hergert, N. Ghalichechian, B. Shapiro, and R. Ghodssi, “Vision-based Microtribological  Characterization of Linear Microball Bearings,” in Proceedings of 2004 ASME/STLE International Joint Tribology Conference, Long Beach, CA,  Oct 24-27, 2004, http://dx.doi.org/10.1115/trib2004-64334

A. Modafe, N. Ghalichechian, B. Kleber and R. Ghodssi, "Electrical Characterization of BCB for Electrostatic Microelectromechanical Devices," in Proceedings of Materials Research Society 2003 Fall Meeting, Boston, MA, December 1-5, 2003, http://dx.doi.org/10.1557/proc-782-a5.69

N. Ghalichechian, A. Modafe and R. Ghodssi, "Integration of Silicon Anisotropic Wet Etching and BCB Processes," presented at the AVS 50rd International Symposium, Baltimore, MD, November 2-7, 2003.