Dr. Jahangir S. Rastegar Profile

Dr. Jahangir S. Rastegar

Managing Partner/Co-founder at Omnitek Partners LLC

SPIE Involvement:

Author

Publications (51)

Proceedings Article | 30 May 2022 Paper

A hybrid in-parallel TEG-TPV system for harvesting electrical energy from highly varying high-temperature sources

J. Rastegar, H. Dhadwal

Proceedings Volume 12090, 1209004 (2022) https://doi.org/10.1117/12.2618532

KEYWORDS: Thermoelectric materials, Energy harvesting, Photons, Optical fibers, Heat flux, Waveguides, Prototyping, Switching, Optical filters, Control systems

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Proceedings Article | 30 May 2022 Paper

Direct battery electrolyte and supercapacitor heating and temperature maintenance at low temperatures

J. Rastegar, H. Dhadwal

Proceedings Volume 12090, 120900A (2022) https://doi.org/10.1117/12.2618642

KEYWORDS: Resistance, Resistors, Capacitors, Temperature metrology, Lead, Inductance, Motion models, Lithium, Ions, Solids

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Proceedings Article | 30 May 2022 Paper

Novel thermoelectric generator systems for harvesting electrical energy from highly varying and high-peak temperature sources

J. Rastegar

Proceedings Volume 12090, 1209009 (2022) https://doi.org/10.1117/12.2618518

KEYWORDS: Thermoelectric materials, Heat flux, Energy harvesting, Actuators, Temperature metrology, Prototyping, Tin, Switching, Resistance, Interfaces

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Proceedings Article | 27 March 2018 Presentation + Paper

Piezoelectric-based self-powered electronic adjustable impulse switches

Jahangir Rastegar, Philip Kwok

Proceedings Volume 10602, 106020O (2018) https://doi.org/10.1117/12.2296344

KEYWORDS: Switches, Electronic circuits, Capacitors, Energy harvesting, Resistors, Logic, Diodes, Sensors, Safety, Electronic components

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Proceedings Article | 27 March 2018 Presentation + Paper

A new class of high-G and long-duration shock testing machines

Jahangir Rastegar

Proceedings Volume 10602, 106020I (2018) https://doi.org/10.1117/12.2296345

KEYWORDS: Video, Prototyping, Reliability, Solids, Actuators, Explosives

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Proceedings Article | 5 May 2017 Paper

A class of polarized cavity orientation sensors

H. Dhadwal, J. Rastegar, P. Kwok, C. Pereira

Proceedings Volume 10195, 101950Z (2017) https://doi.org/10.1117/12.2262803

KEYWORDS: Sensors, Polarization, Environmental sensing, Antennas, Distance measurement, Unmanned vehicles, Magnetic sensors, Gyroscopes, Magnetometers, Radar, Modulation, Spatial resolution, Transmitters, Algorithm development

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Proceedings Article | 5 May 2017 Paper

Wireless energy and data transfer to munitions using high power laser diodes

Harbans Dhadwal, Jahangir Rastegar, Philip Kwok

Proceedings Volume 10195, 1019513 (2017) https://doi.org/10.1117/12.2262818

KEYWORDS: High power lasers, Diodes, Control systems, Capacitors, Photodiodes, Sensors, Fiber optics, Magnetism, Energy transfer, Modulation

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Proceedings Article | 4 April 2017 Presentation + Paper

A piezoelectric shock-loading response simulator for piezoelectric-based device developers

J. Rastegar, Z. Feng

Proceedings Volume 10166, 1016604 (2017) https://doi.org/10.1117/12.2257718

KEYWORDS: Transducers, Computer simulations, Device simulation, Energy harvesting, Sensors, Electronic circuits, Signal detection, Capacitors, Safety, Process modeling, Switches, Switching, Resistors, Capacitance, Resistance

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Proceedings Article | 4 April 2017 Presentation + Paper

Piezoelectric-based hybrid reserve power sources for munitions

J. Rastegar, P. Kwok

Proceedings Volume 10166, 1016605 (2017) https://doi.org/10.1117/12.2257827

KEYWORDS: Energy harvesting, Electronics, Liquids, Safety, Computer simulations, Transducers, Remote sensing, Sensors, Capacitors, Chemical elements, Diodes, Logic, Logic devices, Electronic circuits

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SPIE Press Book | 21 February 2017

Energy Harvesting for Low-Power Autonomous Devices and Systems

Harbans Dhadwal, Jahangir Rastegar

KEYWORDS: Energy harvesting, Transducers, Electromagnetism, Capacitors, Sensors, Ceramics, Crystals, Magnetism, Microelectromechanical systems, Electronics

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Energy Harvesting for Low-Power Autonomous Devices and Systems

Proceedings Article | 19 May 2016 Paper

High contrast imaging through adaptive transmittance control in the focal plane

Harbans Dhadwal, Jahangir Rastegar, Dake Feng

Proceedings Volume 9868, 98680I (2016) https://doi.org/10.1117/12.2222572

KEYWORDS: Imaging systems, Transmittance, Light, Adaptive control, In vivo imaging, Biomedical optics, Spatial light modulators, Neodymium, Surgery, Image resolution

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Proceedings Article | 17 May 2016 Paper

Piezoelectric-based hybrid reserve power sources for munitions

Jahangir Rastegar, Carlos Pereira, Dake Feng

Proceedings Volume 9865, 98650A (2016) https://doi.org/10.1117/12.2224073

KEYWORDS: Energy harvesting, Electronics, Sensors, Liquids, Safety, Chemical elements, Diodes, Logic, Logic devices, Electronic circuits

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Proceedings Article | 13 May 2016 Paper

Non-GPS full position and angular orientation onboard sensors for moving and stationary platforms

Harbans Dhadwal, Jahangir Rastegar, Dake Feng, Philip Kwok, Carlos Pereira

Proceedings Volume 9837, 983702 (2016) https://doi.org/10.1117/12.2224075

KEYWORDS: Sensors, Polarization, Antennas, Environmental sensing, Radar, Modulation, Finite element methods, Signal to noise ratio, Data modeling, Wave propagation

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Proceedings Article | 13 May 2016 Paper

High power free space optical link for rapid energy and data transmission

Harbans Dhadwal, Jahangir Rastegar, Dake Feng, Philip Kwok

Proceedings Volume 9837, 98370B (2016) https://doi.org/10.1117/12.2222909

KEYWORDS: Free space, Free space optics, Solar energy, Radio optics, Data transmission, Semiconductor lasers, Diodes, Fiber lasers, Neodymium, Thermography

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Proceedings Article | 12 May 2016 Paper

A novel class of MEMS accelerometers for very high-G munitions environment

Jahangir Rastegar, Dake Feng

Proceedings Volume 9825, 982505 (2016) https://doi.org/10.1117/12.2224093

KEYWORDS: Sensors, Microelectromechanical systems, Prototyping, Gyroscopes, Capacitors, Imaging systems, Actuators, Patents, Electronics, Mouth

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Proceedings Article | 20 April 2016 Paper

A novel class of MEMS accelerometers for very high-G munitions environment

Jahangir Rastegar, Dake Feng

Proceedings Volume 9803, 98032Q (2016) https://doi.org/10.1117/12.2218752

KEYWORDS: Sensors, Microelectromechanical systems, Prototyping, Gyroscopes, Capacitors, Imaging systems, Actuators, Patents, Electronics, Mouth

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Proceedings Article | 15 April 2016 Paper

A review of piezoelectric-based electrical energy harvesting methods and devices for munitions

Jahangir Rastegar, Carlos Pereira, Dake Feng

Proceedings Volume 9799, 97992M (2016) https://doi.org/10.1117/12.2218747

KEYWORDS: Safety, Energy harvesting, Electronics, Sensors, Capacitors, Diodes, Logic, Switching, Bridges, Transistors

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Proceedings Article | 22 May 2015 Paper

A novel method for full position and angular orientation measurement of moving objects

Harbans Dhadwal, Jahangir Rastegar, Dake Feng, Philip Kwok, Carlos Pereira

Proceedings Volume 9468, 946803 (2015) https://doi.org/10.1117/12.2177500

KEYWORDS: Sensors, Antennas, Modulation, Polarization, Global Positioning System, Distance measurement, Finite element methods, Radar, Environmental sensing, Signal to noise ratio

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Proceedings Article | 22 May 2015 Paper

A novel class of MEMS accelerometers for guidance and control of gun-fired munitions

Jahangir Rastegar, Dake Feng, Carlos Pereira

Proceedings Volume 9467, 94672Y (2015) https://doi.org/10.1117/12.2176876

KEYWORDS: Sensors, Microelectromechanical systems, Gyroscopes, Prototyping, Capacitors, Actuators, Patents, Electronics, Mouth, Semiconducting wafers

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Proceedings Article | 18 May 2015 Paper

Piezoelectric energy-harvesting power source and event detection sensors for gun-fired munitions

Jahangir Rastegar, Dake Feng, Carlos Pereira

Proceedings Volume 9493, 94930H (2015) https://doi.org/10.1117/12.2176879

KEYWORDS: Safety, Sensors, Capacitors, Energy harvesting, Electronics, Diodes, Logic, Switching, Bridges, Transistors

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Proceedings Article | 14 May 2015 Paper

High contrast imaging in the presence of a bright background

Harbans Dhadwal, Jahangir Rastegar, Dake Feng

Proceedings Volume 9489, 94890N (2015) https://doi.org/10.1117/12.2177506

KEYWORDS: Microelectromechanical systems, Imaging systems, Image enhancement, Image contrast enhancement, Digital imaging, Image filtering, Spatial light modulators, Spatial filters, Sensors, Image transmission

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Proceedings Article | 13 May 2015 Paper

Wireless photonic power and data transfer to dormant devices

Harbans Dhadwal, Jahangir Rastegar, Dake Feng, Philip Kwok

Proceedings Volume 9491, 949109 (2015) https://doi.org/10.1117/12.2177512

KEYWORDS: Copper, Finite element methods, Energy transfer, Thermal modeling, Sensors, Solar cells, Gallium arsenide, Epoxies, Convection, Fiber optics

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Proceedings Article | 13 May 2015 Paper

Data communication through multiple physical media: applications to munitions

Harbans Dhadwal, Jahangir Rastegar, Dake Feng, Philip Kwok

Proceedings Volume 9491, 94910K (2015) https://doi.org/10.1117/12.2177521

KEYWORDS: Sensors, Telecommunications, Epoxies, Data communications, Actuators, Electronic components, Composites, Packaging, Wireless communications, Control systems

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Proceedings Article | 5 June 2014 Paper

Piezoelectric-based event sensing and energy-harvesting power sources for thermal battery initiation in gun-fired munitions

J. Rastegar, D. Feng, C. Pereira

Proceedings Volume 9115, 911509 (2014) https://doi.org/10.1117/12.2053205

KEYWORDS: Safety, Capacitors, Energy harvesting, Electronics, Bridges, Diodes, Resistors, Transistors, Logic, Switching

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Proceedings Article | 5 June 2014 Paper

Pulse wireless photonic power transfer at high irradiance

Harbans Dhadwal, Jahangir Rastegar, Philip Kwok

Proceedings Volume 9115, 91150Y (2014) https://doi.org/10.1117/12.2053399

KEYWORDS: Capacitors, Resistance, Energy transfer, Sun, Solar cells, High power lasers, Diodes, Sensors, Solar energy, Semiconductor lasers

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Proceedings Article | 3 June 2014 Paper

Roll angle measurement using a polarization scanning reference source

Harbans Dhadwal, Jahangir Rastegar, Varun Kankipati

Proceedings Volume 9084, 908411 (2014) https://doi.org/10.1117/12.2051065

KEYWORDS: Polarization, Receivers, Transmitters, Unmanned aerial vehicles, Switches, Amplifiers, Sensors, Signal detection, Digital signal processing, Signal attenuation

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Proceedings Article | 3 June 2014 Paper

A 10 GHz polarization scanning reference source

Harbans Dhadwal, Jahangir Rastegar

Proceedings Volume 9084, 908417 (2014) https://doi.org/10.1117/12.2053424

KEYWORDS: Polarization, Receivers, Amplifiers, Phase shifts, Sensors, Control systems, Unmanned aerial vehicles, Antennas, Transmitters, Phase measurement

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Proceedings Article | 16 April 2014 Paper

Piezoelectric-based electrical energy harvesting and storage methods and electronics for munitions

J. Rastegar, C. Pereira, M. Ervin, D. Feng

Proceedings Volume 9059, 905909 (2014) https://doi.org/10.1117/12.2045257

KEYWORDS: Energy harvesting, Electronics, Capacitors, Diodes, Magnetism, Safety, Electromagnetism, Roads, Sensors, Wireless communications

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Proceedings Article | 28 March 2012 Paper

Energy harvesting device for power generation onboard gravity-dropped weapons

J. Rastegar, R. Murray, M. Bridge

Proceedings Volume 8341, 83411C (2012) https://doi.org/10.1117/12.915404

KEYWORDS: Weapons, Energy harvesting, Electromagnetism, Chemical elements, Prototyping, Analytical research, Electronic components, Sensors, Wireless communications

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Proceedings Article | 28 March 2012 Paper

Novel motion-doubling mechanism for improved piezoelectric energy-harvesting performance

J. Rastegar, R. Murray, C. Pereira

Proceedings Volume 8341, 83411M (2012) https://doi.org/10.1117/12.915411

KEYWORDS: Energy harvesting, Prototyping, Chemical elements, Weapons, Energy efficiency, Control systems, Pollution control, Mathematical modeling, Control systems design, Electronic components

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Proceedings Article | 18 May 2011 Paper

Energy harvesting from mortar tube firing impulse to supplement fire-control electronics battery

J. Rastegar, R. Murray, R. Tillinghast, C. Pereira, H.-L. Nguyen

Proceedings Volume 8035, 803516 (2011) https://doi.org/10.1117/12.883433

KEYWORDS: Energy harvesting, Electronics, Weapons, Energy efficiency, Control systems, Prototyping, Chemical elements, Capacitors, Pollution control, Mathematical modeling

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Proceedings Article | 18 May 2011 Paper

Energy-harvesting power sources for gun-fired munitions

J. Rastegar, R. Murray, C. Pereira, H.-L. Nguyen

Proceedings Volume 8035, 803517 (2011) https://doi.org/10.1117/12.883438

KEYWORDS: Energy harvesting, Prototyping, Target detection, Safety, Manufacturing, Sensors, Electronics, Packaging, Epoxies, Defense and security

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Proceedings Article | 27 April 2011 Paper

Energy-harvesting from mortar tube firing impulse to supplement fire-control electronics battery

J. Rastegar, R. Murray, R. Tillinghast, C. Pereira, H.-L. Nguyen

Proceedings Volume 7977, 79770R (2011) https://doi.org/10.1117/12.880476

KEYWORDS: Energy harvesting, Electronics, Weapons, Energy efficiency, Control systems, Prototyping, Chemical elements, Capacitors, Pollution control, Mathematical modeling

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Proceedings Article | 9 April 2010 Paper

Energy-harvesting power sources for very-high-G gun-fired munitions

J. Rastegar, R. Murray, C. Pereira, H-L. Nguyen

Proceedings Volume 7643, 76430D (2010) https://doi.org/10.1117/12.847777

KEYWORDS: Energy harvesting, Electronics, Safety, Prototyping, Systems modeling, Packaging, Finite element methods, Sensors, Receivers, Microelectromechanical systems

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Proceedings Article | 9 April 2010 Paper

Novel two-stage piezoelectric-based electrical energy generators for low and variable speed rotary machinery

J. Rastegar, R. Murray

Proceedings Volume 7643, 76430C (2010) https://doi.org/10.1117/12.847755

KEYWORDS: Wind energy, Energy harvesting, Energy efficiency, Energy conversion efficiency, Magnetism, Electronics, Prototyping, Mathematical modeling, Sensors, Wireless communications

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Proceedings Article | 20 March 2010 Paper

Development and commercialization strategy for piezoelectric energy-harvesting power sources for gun-fired munitions

J. Rastegar, R. Murray

Proceedings Volume 7645, 764502 (2010) https://doi.org/10.1117/12.847759

KEYWORDS: Energy harvesting, Prototyping, Target detection, Safety, Chemical elements, Electronics, Packaging, Weapons, Manufacturing, Sensors

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Proceedings Article | 7 April 2009 Paper

Novel two-stage piezoelectric-based electrical energy generators for low and variable speed rotary machinery

J. Rastegar, R. Murray

Proceedings Volume 7288, 72880B (2009) https://doi.org/10.1117/12.815764

KEYWORDS: Wind energy, Energy harvesting, Chemical elements, Magnetism, Teeth, Energy conversion efficiency, Control systems, Electronics, Prototyping, Ceramics

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Proceedings Article | 7 April 2009 Paper

Event sensing and energy-harvesting power sources for gun-fired munitions

J. Rastegar, R. Murray, C. Pereira, H.-L. Nguyen

Proceedings Volume 7288, 72880Z (2009) https://doi.org/10.1117/12.815513

KEYWORDS: Energy harvesting, Prototyping, Target detection, Safety, Electronics, Chemical elements, Packaging, Epoxies, Sensors, Solids

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Proceedings Article | 7 April 2009 Paper

Novel two-stage piezoelectric-based ocean wave energy harvesters for moored or unmoored buoys

R. Murray, J. Rastegar

Proceedings Volume 7288, 72880E (2009) https://doi.org/10.1117/12.815852

KEYWORDS: Wave propagation, Energy harvesting, Wind energy, Computer simulations, Energy efficiency, Mathematical modeling, Particles, Radon, Electronics, Wavefronts

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Proceedings Article | 5 October 2007 Paper

Countering GPS jamming and EW threat

Carlos Pereira, J. Rastegar, Clifford McLain, T. Alanson, Charles McMullan, H.-L. Nguyen

Proceedings Volume 6757, 67570H (2007) https://doi.org/10.1117/12.753477

KEYWORDS: Sensors, Global Positioning System, Magnetometers, Magnetic sensors, Navigation systems, Electromagnetism, Signal attenuation, Control systems, Rockets, Magnetism

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Proceedings Article | 11 April 2007 Paper

Novel piezoelectric-based energy-harvesting power sources for gun-fired munitions

J. Rastegar, R. Murray, C. Pereira, H.-L. Nguyen

Proceedings Volume 6527, 65270Y (2007) https://doi.org/10.1117/12.715009

KEYWORDS: Energy harvesting, Prototyping, Electronics, Safety, Packaging, Solids, Weapons, Sensors, Chemical elements, Receivers

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Proceedings Article | 11 April 2007 Paper

Novel impact-based peak-energy locking piezoelectric generators for munitions

J. Rastegar, R. Murray, C. Pereira, H-L. Nguyen

Proceedings Volume 6527, 65270X (2007) https://doi.org/10.1117/12.715475

KEYWORDS: Safety, Energy harvesting, Chemical elements, Electronic circuits, Packaging, Reliability, Prototyping, Energy efficiency, Interfaces, Electronic components

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Proceedings Article | 11 April 2007 Paper

Novel vibration-based electrical energy generators for low and variable speed turbo-machinery

J. Rastegar, R. Murray

Proceedings Volume 6527, 65270Z (2007) https://doi.org/10.1117/12.715017

KEYWORDS: Wind energy, Energy harvesting, Chemical elements, Teeth, Energy conversion efficiency, Computer simulations, Computing systems, Magnetism, Electronics, Ceramics

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Proceedings Article | 5 April 2006 Paper

Piezoelectric-based energy-harvesting power sources for gun-fired munitions

J. Rastegar, D. Haarhoff, C. Pereira, H-L. Nguyen

Proceedings Volume 6174, 61740W (2006) https://doi.org/10.1117/12.657441

KEYWORDS: Energy harvesting, Safety, Prototyping, Electronics, Sensors, Packaging, Smart materials, Epoxies, Receivers, Microelectromechanical systems

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Proceedings Article | 24 March 2006 Paper

Piezoelectric-based power sources for harvesting energy from platforms with low-frequency vibration

J. Rastegar, C. Pereira, H.-L. Nguyen

Proceedings Volume 6171, 617101 (2006) https://doi.org/10.1117/12.657464

KEYWORDS: Energy harvesting, Prototyping, Teeth, Electronics, Energy transfer, Ceramics, Sensors, Wireless communications, Environmental sensing, Pollution control

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Proceedings Article | 20 December 2004 Paper

Novel conformal sensor technologies that conform to munitions geometry

Carlos Pereira, Hai-Long Nguyen, John Romano, Jahangir Rastegar, K. Tang, Pritpal Singh, Ahmad Hoorfar

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.566444

KEYWORDS: Waveguides, Sensors, Antennas, Electromagnetism, Polarization, Radio propagation, Waveguide sensors, Signal processing, Sensor technology, Radar

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Proceedings Article | 30 September 2003 Paper

New class of onboard absolute orientation measurement sensor for robotic mobile platforms

Jahangir Rastegar, Q. Jeffrey Ge, Carlos Pereira

Proceedings Volume 5267, (2003) https://doi.org/10.1117/12.515392

KEYWORDS: Waveguides, Sensors, Waveguide sensors, Robotics, Position sensors, Antennas, Sensor performance, Radar, Wave propagation, Fiber optic illuminators

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Proceedings Article | 22 June 2000 Paper

Systematic method to enhance the operating speed and precision of mechanical systems with nonlinear dynamics using integrated smart actuators

Jahangir Rastegar, Lifang Yuan

Proceedings Volume 3985, (2000) https://doi.org/10.1117/12.388820

KEYWORDS: Actuators, Smart materials, Vibration control, Complex systems, Kinematics, Nonlinear dynamics, Control systems, Robotic systems, Ceramics, System integration

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Proceedings Article | 22 June 2000 Paper

Enhancement of the operating speed and accuracy of parallel and cooperating robots with smart materials

Lifang Yuan, Jahangir Rastegar

Proceedings Volume 3985, (2000) https://doi.org/10.1117/12.388819

KEYWORDS: Actuators, Robots, Smart materials, Kinematics, Robotic systems, Control systems, Vibration control, Complex systems, Robotics, Optimization (mathematics)

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Proceedings Article | 14 June 2000 Paper

Enhancement of the dynamic response characteristics of classical drives with smart actuators for high-speed and precision machinery applications

Jahangir Rastegar, Lifang Yuan, Wenwei Wang

Proceedings Volume 3992, (2000) https://doi.org/10.1117/12.388221

KEYWORDS: Actuators, Complex systems, Nonlinear dynamics, Smart materials, Vibration control, Control systems, Robotic systems, Kinematics, Ceramics, Computer simulations

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Proceedings Article | 12 June 2000 Paper

Three-degree-of-freedom adaptive-passive isolator for launch vehicle payloads

Farshad Khorrami, Jahangir Rastegar, R. Scott Erwin

Proceedings Volume 3991, (2000) https://doi.org/10.1117/12.388158

KEYWORDS: Control systems, Vibration isolation, Optical isolators, Fourier transforms, Complex systems, Active isolation, Signal attenuation, Space operations, Prototyping, Actuators

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Showing 5 of 51 publications

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