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Nima Ghalichechian

  • Assistant Professor, Electrical & Computer Engr.
  • 1330 Kinnear Rd
    ElectroScience Laboratory, Room 245
    Columbus, OH 43212
  • 614-292-6895

About

Education

2007, Ph.D. in Electrical Engineering from University of Maryland, College Park

Biography

Dr. Nima Ghalichechian is an Assistant Professor at the Department of Electrical and Computer Engineering. He received his Ph.D. in Electrical Engineering in 2007 from University of Maryland, College Park where he developed electrostatic micromotors supported on microball bearings. From 2007 to 2012 he was with the Research Department of FormFactor Inc., Livermore, California as a Senior Principal Engineer. During this period, he helped to design and develop microsprings for advanced probe cards used in testing memory and SoC semiconductor devices. Dr. Ghalichechian joined The Ohio State University (OSU) as a Research Scientist in 2012. As a principal investigator, he has helped establishing several new programs at OSU sponsored by NSF, DARPA, and AFRL. From 2016-2017, he held a Research Assistant Professor position at ECE. His research interests are in the area of RF microsystems. He is currently principal investigator of the RF Microsystems Laboratory located at room 210 of the ElectroScience Lab.

Research areas of interest

His research is interdisciplinary and centers around two areas of micro/nanotechnology and electromagnetics. Specifically, he conducts research on RF microsystems with focus on reconfigurable antenna arrays, millimeter-wave antennas, terahertz microsystems, sensors, novel materials, and microfabrication processes.

Office

Room 245, ElectroScience Laboratory

Room 380, Dreese Laboratory

Honors

  • January, 2019-
    January, 2024

    NSF CAREER Award.

  • March, 2016

    Best student paper award at the International Workshop on Antenna Technology (iWAT), Hilton Cocoa Beach, FL, Feb 29- Mar 2, 2016 (Student name: Dimitris Papantonis)..

  • January, 2016

    Best student paper competition award (2nd place) at the USNC/URSI National Radio Science Meeting, Boulder, Colorado, Jan 6, 2016., Student name: Ersin Yetisir, co-advisor.

  • October, 2014

    Senior Member.

  • December, 2007

    Best Speaker Award.

  • December, 2007

    George Harhalakis Outstanding Systems Engineering Graduate Student Award.

  • December, 2006

    Graduate Research Award.

  • November, 2004

    Best Paper Award.

Journal Articles

2020

  • Ghassemiparvin, B.; Ghalichechian, N., 2020, "Paraffin-Based Reconfigurable Antenna Operating at 100 GHz." Journal of Microelectromechanical Systems 29, no. 5, 621-628 - 621-628.
  • Chen, S.; Lust, M.; Ghalichechian, N., 2020, "Multiphysics simulation of hypersensitive microbolometer sensor using vanadium dioxide and air suspension for millimeter wave imaging." Microsystem Technologies
  • Henderson, K.Q.; Ghalichechian, N., 2020, "Circular-Polarized Metal-Only Reflectarray with Multi-Slot Elements." IEEE Transactions on Antennas and Propagation 68, no. 9, 6695-6703 - 6695-6703.
  • Lust, M.; Chen, S.; Wilson, C.E.; Argo, J. et al., 2020, "High-contrast, highly textured VO2 thin films integrated on silicon substrates using annealed Al2O3 buffer layers." JOURNAL OF APPLIED PHYSICS 127, no. 20,
  • Ghassemiparvin, B.; Ghalichechian, N., 2020, "Reconfigurable antennas: Quantifying payoffs for pattern, frequency, and polarisation reconfiguration." IET Microwaves, Antennas and Propagation 14, no. 3, 149-153 - 149-153.
  • Jeong, K.H.; Ghalichechian, N., 2020, "3D-printed 4-zone Ka-band Fresnel lens: Design, fabrication, and measurement." IET Microwaves, Antennas and Propagation 14, no. 1, 28-35 - 28-35.

2019

  • Zhao, K.; Ramsey, J.A.; Ghalichechian, N., 2019, "Fully 3-D-Printed Frequency-Scanning Slotted Waveguide Array with Wideband Power-Divider." IEEE Antennas and Wireless Propagation Letters 18, no. 12, 2756-2760 - 2756-2760.
  • Ghassemiparvin, B.; Ghalichechian, N., 2019, "Design, fabrication, and testing of a helical antenna using 3D printing technology." Microwave and Optical Technology Letters
  • Eichenberger, J.; Yetisir, E.; Ghalichechian, N., 2019, "High-Gain Antipodal Vivaldi Antenna with Pseudoelement and Notched Tapered Slot Operating at (2.5 to 57) GHz." IEEE Transactions on Antennas and Propagation 67, no. 7, 4357-4366 - 4357-4366.
  • Shah, S.; Ghassemiparvin, B.; Ghalichechian, N., 2019, "Robust spin coating deposition process for paraffin phase-change films." Microelectronic Engineering 217,
  • Yetisir, E.; Li, J.; Ghalichechian, N., 2019, "UWB dual-polarised dipole array with dielectric and FSS superstrate and 65° scanning." IET Microwaves, Antennas and Propagation 13, no. 3, 313-321 - 313-321.

2018

  • Ghassemiparvin, B.; Ghalichechian, N., 2018, "Complex Permittivity Measurement of Paraffin Phase-Change Material at 26 GHz–1.1 THz Using Time-Domain Spectroscopy." Journal of Infrared, Millimeter, and Terahertz Waves

2016

  • E. Yetisir, N. Ghalichechian, J. Volakis, 2016, "Ultra-wideband Array with 70° Scanning using FSS Superstrate." IEEE Transaction on Antennas and Propagation NA, no. 99, NA - NA.
  • Sanphuang, V.; Ghalichechian, N.; Nahar, N.K.; Volakis, J.L., 2016, "Reconfigurable THz Filters Using Phase-Change Material and Integrated Heater." IEEE Transactions on Terahertz Science and Technology 6, no. 4, 583-591 - 583-591.
  • V. Sanphuang; N. Ghalichechian; N. K. Nahar; J. L. Volakis, 2016, "Reconfigurable THz Filters Using Phase-Change Material and Integrated Heater,." IEEE Transactions on Terahertz Science and Technology 6, no. 4, 583-591 - 583-591.

2015

  • Ghalichechian, N.; Sertel, K., 2015, "Permittivity and loss characterization of SU-8 films for mmW and terahertz applications." IEEE Antennas and Wireless Propagation Letters 14, 723-726 - 723-726.
  • Sanphuang, V.; Ghalichechian, N.; Nahar, N.K.; Volakis, J.L., 2015, "Equivalent circuit for VO2 phase change material film in reconfigurable frequency selective surfaces." APPLIED PHYSICS LETTERS 107, no. 25,
  • Ghalichechian,Nima; Sertel,Kubilay, 2015, "Permittivity and Loss Characterization of SU-8 Films for mmW and Terahertz Applications." IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 14, 723-726 - 723-726.

2009

  • Beyaz, M.I.; McCarthy, M.; Ghalichechian, N.; Ghodssi, R., 2009, "Closed-loop control of a long-range micropositioner using integrated photodiode sensors." Sensors and Actuators, A: Physical 151, no. 2, 187-194 - 187-194.

2008

  • Ghalichechian,Nima; Modafe,Afireza; Beyaz,Mustafa,Ilker; Ghodssi,Reza, 2008, "Design, fabrication, and characterization of a rotary micromotor supported on microball bearings." JOURNAL OF MICROELECTROMECHANICAL SYSTEMS 17, no. 3, 632-642 - 632-642.
  • Beyaz,M,I; Ghalichechian,N; Ghodssi,R, 2008, "Toward an autonomous electrostatic micromotor: Integrated feedback control." MEMS 2008: 21ST IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS, TECHNICAL DIGEST 483-486 - 483-486.

2007

  • Ghalichechian, N.; Modafe, A.; Lang, J.H.; Ghodssi, R., 2007, "Dynamic characterization of a linear electrostatic micromotor supported on microball bearings." Sensors and Actuators, A: Physical 136, no. 2, 496-503 - 496-503.
  • Ghalichechian,N; Modafe,A; Beyaz,M,I; Ghodssi,R, 2007, "A rotary micromotor supported on microball bearings." TRANSDUCERS '07 & EUROSENSORS XXI, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2

2006

  • Modafe,A; Ghalichechian,N; Frey,A; Lang,J,H; Ghodssi,R, 2006, "Microball-bearing-supported electrostatic micromachines with polymer dielectric films for electromechanical power conversion." JOURNAL OF MICROMECHANICS AND MICROENGINEERING 16, no. 9, S182-S190 - S182-S190.

2005

  • Modafe, A.; Ghalichechian, N.; Powers, M.; Khbeis, M. et al., 2005, "Embedded benzocyclobutene in silicon: An integrated fabrication process for electrical and thermal isolation in MEMS." Microelectronic Engineering 82, no. 2, 154-167 - 154-167.
  • Modafe,A; Ghalichechian,N; Frey,A; Lang,J,H; Ghodssi,R, 2005, "A microball-bearing-supported linear electrostatic micromotor with benzocyclobutene polymer insulating layers." TRANSDUCERS '05, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2 693-696 - 693-696.

2004

  • Ghalichechian, N.; Modafe, A.; Ghodssi, R.; Lazzeri, P. et al., 2004, "Integration of benzocyclobutene polymers and silicon micromachined structures using anisotropic wet etching." Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 22, no. 5, 2439-2447 - 2439-2447.
  • Modafe, A.; Ghalichechian, N.; Kleber, B.; Ghodssi, R., 2004, "Electrical characterization of benzocyclobutene polymers for electric micromachines." IEEE Transactions on Device and Materials Reliability 4, no. 3, 495-508 - 495-508.

Presentations

  • "Reconfigurable Electromagnetic Interface." 2015, Presented at DARPA ACT Annual PI Review Meeting,
  • "Reconfigurable RF Microsystems Research Overview." 2015, Presented at Consortium on Electromagnetics and Radio Frequencies 5th Technical Meeting,
  • "Design, Fabrication, and Characterization of a Rotary Micromotor Supported on Microball Bearings." Presented at Massachusetts Institute of Technology,
  • "Towards Reconfigurable and Low-loss Millimeter-Wave Antennas using MEMS Paraffin Micro-actuators." 2014, Presented at Consortium on Electromagnetics and Radio Frequencies 5th Technical Meeting,
  • "Design, Fabrication, and Characterization of a Rotary Micromotor Supported on Microball Bearings,." 2010, Presented at Stanford University MEMS and NEMS Seminar Series,
  • "MEMS FOR RECONFIGURABLE RF MICROSYSTEMS, MICROMOTORS, AND MICROROSPRINGS." 2014, Presented at National Nanotechnology Research Center, Bilkent University,

Papers in Proceedings

2020

  • Henderson, K.Q.; Ghalichechian, N. "Steerable Reflectarray Using Tunable Height Dielectric for High-Power Applications." (3 2020).

2019

  • Henderson, K.Q.; Ghalichechian, N. "Steerable spiral slot reflectarray at 66 GHz using micromachined movable silicon slab." (7 2019).
  • Li, J.; Ghalichechian, N. "Suspended highly-efficient on-chip phased array antenna at 60 GHz." (7 2019).
  • Chen, S.; Lust, M.; Ghalichechian, N. "A vanadium dioxide microbolometer in the transition region for millimeter wave imaging." (7 2019).

2018

  • Ghassemiparvin, B.; Ghalichechian, N. "W-band true-time delay phase shifters using paraffin microactuators." (1 2018).
  • Chen, S.; Ghassemiparvin, B.; Ghalichechian, N. "The design of high-responsivity millimeter wave imager using vanadium dioxide microbolometers." (1 2018).

2017

  • Keshtkaran, K.; Ghalichechian, N. "60 GHz Capacitively Probe-Fed Patch Arrays with Suspended Elements." in 11th European Conference on Antennas and Propagation (EUCAP). (1 2017).
  • Ghassemiparvin, B.; Shah, S.; Ghalichechian, N. "Novel Paraffin-based 100-GHz Variable Capacitors for Reconfigurable Antennas." in 11th European Conference on Antennas and Propagation (EUCAP). (1 2017).

2016

  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. L. Volakis "Reconfigurable THz Array Employing Vanadium Dioxide." in URSI National Radio Science Meeting Boulder. (1 2016).
  • Papantonis, D.K.; Yetisir, E.; Ghalichechian, N.; Volakis, J.L. "Tunable Band Rejection In A Tightly-Coupled Array Using Varactor Diodes." in IEEE International Workshop on Antenna Technology (iWAT). (1 2016).
  • E. Yetisir, N. Ghalichechian and J. L. Volakis "A Novel Array with 6:1 Bandwidth and 70° Scanning Using FSS Superstrate." in URSI National Radio Science Meeting, Boulder. (1 2016).
  • Ghassemiparvin, B.; Ghalichechian, N. "Reconfigurable Millimeter-Wave Antennas Using Paraffin Phase Change Materials." in 10th European Conference on Antennas and Propagation (EuCAP). (1 2016).
  • Ghassemiparvin, B.; Ghalichechian, N. "Permittivity and Dielectric Loss Measurement of Paraffin Films for mmW and THz Applications." in IEEE International Workshop on Antenna Technology (iWAT). (1 2016).
  • Keshtkaran, K.; Ghalichechian, N. "Suspended 60 GHz Phased Array Antenna With High Efficiency." in IEEE International Workshop on Antenna Technology (iWAT). (1 2016).
  • Benjamin Lough, Behnam Ghassemiparvin, Nima Ghalichechian "RF Micro-Electro-Mechanical Pulmonary Artery Banding for Congenital Heart Diseases." in 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). (8 2016).
  • B. Ghassemiparvin and N. Ghalichechian, "Reconfigurable Millimeter-wave Antennas using Paraffin-Based MEMS Capacitors." in European Conference on Antennas and Propagation (EuCAP), Davos. (4 2016).

2015

  • Sahin, S.; Ghalichechian, N.; Nahar, N.K.; Sertel, K. "Lithographically-fabricated Ultrawideband Phased-Arrays for Agile mmW Connectivity." in USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings. (1 2015).
  • Sanphuang, V.; Ghalichechian, N.; Nahar, N.K.; Volakis, J.L. "Bandwidth Reconfigurable THz Filter Employing Phase-Change Material." in IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting. (1 2015).
  • Papantonis, D.K.; Ghalichechian, N.; Volakis, J.L. "UWB Arrays With Tunable Band Rejection." in IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting. (1 2015).
  • Papantonis, D.K.; Ghalichechian, N.; Volakis, J.L. "Reconfigurable Ultra-wideband Array with Tunable Band Rejection across a 7:1 Bandwidth." in IEEE MTT-S International Microwave Symposium (IMS). (1 2015).
  • Yetisir, E.; Ghalichechian, N.; Volakis, J.L. "Wideband & Wide Angle Scanning Array with Parasitic Superstrate." in IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting. (1 2015).
  • Papantonis, D.K.; Novak, M.; Ghalichechian, N.; Volakis, J.L. "Low-Profile Ultra-Wideband Reconfigurable Tightly-Coupled Arrays." in 9th European Conference on Antennas and Propagation EuCAP. (1 2015).
  • S. Sahin, N. Ghalichechian, N. Nahar, K. Sertel "Lithographically-fabricated Ultrawideband Phased-Arrays for Agile mmW Connectivity." (7 2015).
  • E. Alwan, N. Ghalichechian, J. Volakis "Low Power Millimeter Wave Beamforming Transceiver System using On-Site Coding." (7 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." (3 2015).
  • D. Papantonis, M. Novak, N. Ghalichechian, John L. Volakis "Conformal and Reconfigurable Ultra-wide-band Arrays." (4 2015).
  • Chau, L., Ho, J. G., Lan, X., Altvater, G., Young, R. M., El-Hinnawy, N., Nichols, D., Volakis, J., Ghalichechian, N. "Optically controlled GeTe phase change switch and its applications in reconfigurable antenna arrays." in Proceedings of SPIE - The International Society for Optical Engineering. (1 2015).
  • Loc Chau, James G. Ho, Xing Lan, Norma Riley, Robert M. Young, Nabil El-Hinnawy, Doyle Nichols, John Volakis, and Nima Ghalichechian "Optically-controlled GeTe phase change switch and its applications in reconfigurable antenna arrays." (3 2015).

2014

  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis "Reconfigurable THz Filters with Integrated Micro-Heater." (7 2014).
  • Sanphuang, V.; Ghalichechian, N.; Nahar, N.K.; Volakis, J.L. "Phase Change Materials for Reconfigurable Systems." in Joint USNC-URSI Radio Science Meeting / AP-S Symposium. (1 2014).
  • Sahin, S.; Ghalichechian, N.; Sertel, K. "Ultra-wideband, High-efficiency, On-chip mmW Phased Arrays with Wafer-level Vertical Integration." in Joint USNC-URSI Radio Science Meeting / AP-S Symposium. (1 2014).
  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis "Phase Change Materials for Reconfigurability in THz band." (6 2014).
  • Sanphuang, V.; Ghalichechian, N.; Nahar, N.K.; Volakis, J.L. "Reconfigurable THz Filters with Integrated Micro-Heater." in IEEE Antennas-and-Propagation-Society International Symposium (APSURSI). (1 2014).
  • Sanphuang, V.; Ghalichechian, N.; Nahar, N.K.; Volakis, J.L. "Phase-Change Material for Reconfigurability in THz Band." in IEEE National Aerospace and Electronics Conference (NAECON). (1 2014).

2013

  • Ghalichechian, N.; Doane, J.P.; Hong, W.; Sertel, K. et al. "Characterization of SU-8 Using Terahertz Time-Domain Spectroscopy." in IEEE AP-S/URSI-USNC Symposium. (1 2013).

2008

  • Beyaz, M.I.; Ghalichechian, N.; Ghodssi, R. "Toward an autonomous electrostatic micromotor: Integrated feedback control." in 21st IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2008). (1 2008).
  • Ghalichechian, N.; McCarthy, M.; Beyaz, M.I.; Ghodssi, R. "Measurement and modeling of friction in linear and rotary micromotors supported on microball bearings." in 21st IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2008). (1 2008).
  • Beyaz, M.I.; McCarthy, M.; Ghalichechian, N.; Ghodssi, R. "Photodiode position sensors for integrated feedback control of a long-range micropositioner." (12 2008).

2007

  • Beyaz, M.I.; Ghalichechian, N.; Ghodssi, R. "Toward smart micromachines with integrated feedback control." in International Semiconductor Device Research Symposium. (1 2007).
  • Ghalichechian, N.; Modafe, A.; Beyaz, M.I.; Ghodssi, R. "A rotary micromotor supported on microball bearings." in 14th International Conference on Solid-State Sensors, Actuators and Microsystems/21st European Conference on Solid-State Transducers. (1 2007).
  • M. I. Beyaz, N. Ghalichechian, A. Modafe, and R. Ghodssi "Towards Feedback Control with Integrated Position Sensing in Micromachines." in AVS 54th International Symposium, Seattle. (10 2007).

2006

  • 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." (12 2006).
  • N. Ghalichechian, A. Modafe, M. I. Beyaz, and R. Ghodssi "Chemical Mechanical Planarization of BCB Polymer Films: Effect of Cure Temperature." (11 2006).

2005

  • Modafe, A.; Ghalichechian, N.; Frey, A.; Lang, J.H. et al. "A microball-bearing-supported linear electrostatic micromotor with benzocyclobutene polymer insulating layers." in 13th International Conference on Solid-State Sensors, Actuators and Microsystems. (1 2005).
  • Modafe, A.; Ghalichechian, N.; Ghodssi, R. "Multilevel interconnection and isolation for electrostatic MEMS using embedded benzocyclobutene in silicon process." (12 2005).
  • 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." (3 2005).
  • A. Modafe, N. Ghalichechian, and R. Ghodssi, "Embedded Benzocyclobutene Islands in Silicon (EBIS) Process for Fabrication of Electrostatic Microelectromechanical Devices." (3 2005).
  • 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." (11 2005).

2004

  • X. Tan, A. Modafe, R. Hergert, N. Ghalichechian, B. Shapiro, and R. Ghodssi "Vision-based Microtribological Characterization of Linear Microball Bearings." (11 2004).
  • A. Modafe, N. Ghalichechian, and R. Ghodssi "BCB-Based Linear Micromotor Supported on Microball Bearings: Design Concepts, Characterization, and Fabrication Development." (11 2004).
  • Modafe, A.; Ghalichechian, N.; Kleber, B.; Ghodssi, R. "Electrical characterization of BCB for electrostatic microelectromechanical devices." in Symposium on Micro- and Nanosystems held at the 2003 MRS Fall Meeting. (1 2004).

2003

  • N. Ghalichechian, A. Modafe and R. Ghodssi "Integration of Silicon Anisotropic Wet Etching and BCB Processes." (11 2003).