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Lotfollah Shafai

Lotfollah Shafai

D-Index & Metrics

Electronics and Electrical Engineering

D-Index
44
Citations
9386
World Ranking
3682
National Ranking
168

Research.com Recognitions

  • 1998 - Fellow of the Royal Society of Canada Academy of Science
  • 1988 - IEEE Fellow For contributions to the analysis of electromagnetic problems in antenna design.
  • The Canadian Academy of Engineering
  • The Canadian Academy of Engineering
  • The Canadian Academy of Engineering
  • The Canadian Academy of Engineering
  • The Canadian Academy of Engineering
  • The Canadian Academy of Engineering

Overview

Lotfollah Shafai is affiliated with the University of Manitoba in Canada and specializes in engineering, with a focus on aerospace engineering and electrical and electronic engineering. Their research contributions span several subfields including civil and structural engineering as well as atomic and molecular physics and optics.

The main topics of Shafai's work include:

  • Antenna Design and Analysis
  • Microwave Engineering and Waveguides
  • Advanced Antenna and Metasurface Technologies
  • Antenna Design and Optimization
  • Structural Analysis and Optimization
  • Gyrotron and Vacuum Electronics Research
  • Radio Frequency Integrated Circuit Design

Shafai's recent publications demonstrate a consistent engagement with antenna and propagation technologies. Notable papers include:

  • "Improving Compact Short Backfire Antenna Gain and Cross-Polarization Using Choke and Ring Cavity Loading" (2022) published in IEEE Transactions on Antennas and Propagation
  • "A Ku-Band Compact Offset Cylindrical Reflector Antenna with High Gain for Low-Earth Orbit Sensing Applications" (2024) in Sensors
  • "Wideband Dual-Polarized Octagonal Cavity-Backed Antenna with Low Cross-Polarization and High Aperture Efficiency" (2023) in Sensors
  • "Split Ring Antennas and Their Application for Antenna Miniaturization" (2023) in Sensors
  • "Gain Enhancement and Cross-Polarization Suppression of Cavity-Backed Antennas Using a Flared Ground Cavity and Iris" (2023) in Sensors

The frequent publication venues for Shafai indicate a focus on Sensors and IEEE journals relating to antennas and propagation:

  • Sensors
  • IEEE Transactions on Antennas and Propagation
  • IEEE Open Journal of Antennas and Propagation
  • IEEE Antennas and Propagation Magazine

Collaboration is a significant aspect of Shafai's research activities. Frequent co-authors include:

  • Dustin Isleifson
  • Yanxia Liu
  • Cyrus Shafai
  • Bashar A. F. Esmail
  • Amirbahador Mansoori

Throughout their career, Shafai has received professional recognition including being named a Fellow of the Royal Society of Canada in 1998, with affiliation to the Academy of Science. They were also designated as an IEEE Fellow in 1988 for contributions to the analysis of electromagnetic problems in antenna design. Additionally, Shafai is associated with The Canadian Academy of Engineering.

Best Publications

  • Bandwidth enhancement and size reduction of microstrip slot antennas

    S.I. Latif;L. Shafai;S.K. Sharma

  • Plane wave coupling to multiple conductor transmission lines above a lossy earth

    G.E.J. Bridges;L. Shafai

  • Investigation Into the Effects of the Patch-Type FSS Superstrate on the High-Gain Cavity Resonance Antenna Design

    A. Foroozesh;L. Shafai

  • Multiple phase center feedhorn for reflector antenna

    Bhashyam Balaji;Anthony Damini;George E. Haslam;Lotfollah Shafai

  • Dielectric Loaded Antennas

    L. Shafai

  • Dual-band dual-polarized perforated microstrip antennas for SAR applications

    L.L. Shafai;W.A. Chamma;M. Barakat;P.C. Strickland

  • Investigation of wide-band microstrip slot antenna

    S.K. Sharma;L. Shafai;N. Jacob

  • Different formulations for numerical solution of single or multibodies of revolution with mixed boundary conditions

    A. Kishk;L. Shafai

  • A Wideband Microwave Tomography System With a Novel Frequency Selection Procedure

    C. Gilmore;P. Mojabi;A. Zakaria;M. Ostadrahimi

  • Investigation Into the Application of Artificial Magnetic Conductors to Bandwidth Broadening, Gain Enhancement and Beam Shaping of Low Profile and Conventional Monopole Antennas

    A Foroozesh;L Shafai

  • Improving microstrip patch antenna performance using EBG substrates

    D. Qu;L. Shafai;A. Foroozesh

  • The effect of various parameters of circular microstrip antennas on their radiation efficiency and the mode excitation

    A. Kishk;L. Shafai

  • Broadband microstrip patch antenna with V-slot

    Gh. Rafi;L. Shafai

  • Dispersion analysis of anisotropic inhomogeneous waveguides using compact 2D-FDTD

    A. Asi;L. Shafai

  • Characteristics of single- and double-layer microstrip square-ring antennas

    Unknown

  • Control of microstrip antenna radiation characteristics by ground plane size and shape

    Unknown

  • Filter-Antenna Module Using Substrate Integrated Waveguide Cavities

    Omar A. Nova;Juan C. Bohorquez;Nestor M. Pena;Greg E. Bridges

  • Directional switched beam antenna

    Lotfollah Shafai

  • X-Band Tunable Frequency Selective Surface Using MEMS Capacitive Loads

    Mojtaba Safari;Cyrus Shafai;Lotfollah Shafai

  • Performance of a Novel $\Psi$ -Shape Microstrip Patch Antenna With Wide Bandwidth

    Unknown

  • Handbook of Reflector Antennas and Feed Systems Volume III: Applications of Reflectors

    Sudhakar Rao;Lotfollah Shafai;Satish Sharma

  • Gain and radiation pattern enhancement of balanced antipodal Vivaldi antenna

    K. Kota;L. Shafai

  • Printed Antennas for Wireless Communications

    Satish K. Sharma;Lotfollah Shafai

Frequent Co-Authors

Joe LoVetri
Joe LoVetri University of Manitoba
Ahmed A. Kishk
Ahmed A. Kishk Concordia University
Mojgan Daneshmand
Mojgan Daneshmand University of Alberta
Pedram Mousavi
Pedram Mousavi University of Alberta
Heli Jantunen
Heli Jantunen University of Oulu
Makoto Ando
Makoto Ando Keio University
Per-Simon Kildal
Per-Simon Kildal Chalmers University of Technology

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