John Ohara

Associate Professor

Electrical & Computer Engineering

  • Associate Professor
    Electrical & Computer Engineering
  • 405-744-3750 (Work)
  • Oklahoma State University, School of Electrical and Computer Engineering, 200 Engineering South, Stillwater, OK, 74078-5032, United States

TEACHING SUMMARY

ECEN 2714 - Fundamentals of Electric Circuits

ECEN 3613 - Applied Fields and Waves I

ECEN 4613 - Microwave Engineering

ECEN 5060 - Advanced Topics In 6G Communications

ECEN 5613 - Electromagnetic Theory

ECEN 5833 - Fiber Optic Communication Systems

TEACHING

  • COURSE TAUGHT
    Dissertation
    8 Jun 2026 - 31 Jul 2026
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Thesis
    8 Jun 2026 - 31 Jul 2026
    A student studying for the master's degree will enroll in this course for a maximum of six credit hours.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.
  • COURSE TAUGHT
    Applied Fields and Waves I
    12 Jan 2026 - 1 May 2026
    Circuit model of transmission lines, wave propagation, energy transfer, impedance mismatch, and transients. Field analysis of voltage, current, resistance, capacitance, and inductance. Coupled circuits.Prerequisite(s): MATH 2163 and ECEN 3714 with a 'C' or better.
  • COURSE TAUGHT
    Dissertation
    12 Jan 2026 - 1 May 2026
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Preliminary PhD Research and Proposal
    12 Jan 2026 - 1 May 2026
    Independent research and report of an advanced electrical engineering problem. Work performed serves as foundation of the oral PhD preliminary exam.Offered for fixed credit, 3 credit hours.Prerequisite(s): Consent of adviser.
  • COURSE TAUGHT
    Thesis
    12 Jan 2026 - 1 May 2026
    A student studying for the master's degree will enroll in this course for a maximum of six credit hours.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.
  • COURSE TAUGHT
    Dissertation
    18 Aug 2025 - 5 Dec 2025
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Fiber-Optic Communication Systems
    18 Aug 2025 - 5 Dec 2025
    The fundamentals of fiber-optic communication systems are described in detail. Fiber electromagnetic behaviors, laser and LED transmitters, photodetectors and semiconductor receivers and other hardware components are covered. System level design and integration concepts are covered including modulation schemes, multiplexing, dispersion and power budget, sampling, incoherent and coherent detection, error control, and network distribution. A historical framework shows how technical capabilities and growing communication needs forced fiber systems evolution.Prerequisite(s): ECEN 4533 or Departmental Permission.
  • COURSE TAUGHT
    Microwave Engineering
    18 Aug 2025 - 5 Dec 2025
    Review of EM and transmission line theory. Microwave network theory: Impedance and admittance matrices, scattering matrix and S-parameters, ABCD and transfer matrices. Signal-flow diagrams. Matching circuits and microwave filters. Passive microwave devices: power dividers, hybrids, couplers, resonators, isolators, and circulators. Class projects such as radar, communication, imaging, or sensing systems.Prerequisite(s): ECEN 3613.
  • COURSE TAUGHT
    Microwave Engineering (4613)
    18 Aug 2025 - 5 Dec 2025
    Fundamental topics that are typically introduced in the senior year curriculum with additional depth and breadth commensurate with the graduate program. Repeat credit may be earned with difference course subtitles assigned.Offered for variable credit, 1-6 credit hours, maximum of 9 credit hours.Prerequisite(s): Advisor permission.
  • COURSE TAUGHT
    Thesis
    18 Aug 2025 - 5 Dec 2025
    A student studying for the master's degree will enroll in this course for a maximum of six credit hours.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.
  • COURSE TAUGHT
    Dissertation
    9 Jun 2025 - 1 Aug 2025
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Thesis
    9 Jun 2025 - 1 Aug 2025
    A student studying for the master's degree will enroll in this course for a maximum of six credit hours.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.
  • COURSE TAUGHT
    Advanced Topics in 6g Communication
    13 Jan 2025 - 2 May 2025
    Engineering topics not normally included in existing courses. Repeat credit may be earned with different course subtitles assigned.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Advisor permission.
  • COURSE TAUGHT
    Dissertation
    13 Jan 2025 - 2 May 2025
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Thesis
    13 Jan 2025 - 2 May 2025
    A student studying for the master's degree will enroll in this course for a maximum of six credit hours.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.
  • COURSE TAUGHT
    Dissertation
    19 Aug 2024 - 6 Dec 2024
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Electromagnetic Theory
    19 Aug 2024 - 6 Dec 2024
    First graduate level treatment of classical electromagnetic theory. Wave equation, potential theory, boundary conditions. Rectangular, cylindrical and spherical wave functions. Conducting and dielectric guiding structures. Scattering and radiation. Introduction to numerical techniques.Prerequisite(s): ECEN 3623 or Departmental Permission.
  • COURSE TAUGHT
    Microwave Engineering
    19 Aug 2024 - 6 Dec 2024
    Review of EM and transmission line theory. Microwave network theory: Impedance and admittance matrices, scattering matrix and S-parameters, ABCD and transfer matrices. Signal-flow diagrams. Matching circuits and microwave filters. Passive microwave devices: power dividers, hybrids, couplers, resonators, isolators, and circulators. Class projects such as radar, communication, imaging, or sensing systems.Prerequisite(s): ECEN 3613.
  • COURSE TAUGHT
    Microwave Engineering (4613)
    19 Aug 2024 - 6 Dec 2024
    Fundamental topics that are typically introduced in the senior year curriculum with additional depth and breadth commensurate with the graduate program. Repeat credit may be earned with difference course subtitles assigned.Offered for variable credit, 1-6 credit hours, maximum of 9 credit hours.Prerequisite(s): Advisor permission.
  • COURSE TAUGHT
    Dissertation
    10 Jun 2024 - 2 Aug 2024
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Thesis
    10 Jun 2024 - 2 Aug 2024
    A student studying for the master's degree will enroll in this course for a maximum of six credit hours.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.
  • COURSE TAUGHT
    Applied Fields and Waves I
    16 Jan 2024 - 3 May 2024
    Circuit model of transmission lines, wave propagation, energy transfer, impedance mismatch, and transients. Field analysis of voltage, current, resistance, capacitance, and inductance. Coupled circuits.Prerequisite(s): MATH 2163 and ECEN 3714 with a 'C' or better.
  • COURSE TAUGHT
    Dissertation
    16 Jan 2024 - 3 May 2024
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.
  • COURSE TAUGHT
    Dissertation
    21 Aug 2023 - 8 Dec 2023
    Independent research for students continuing graduate study beyond the level of the MS degree.Offered for variable credit, 1-12 credit hours, maximum of 36 credit hours.Prerequisite(s): Consent of major professor.