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John Stang

Also published under: John Patrick Stang, John P. Stang

Publications
27
Citations
713
Publications by Year
20082022
Co-Authors:
Show All Co-Authors (40)
Image of author John Stang

John Stang

Also published under: John Patrick Stang, John P. Stang

Affiliation

University of Southern California
Los Angeles
CA, USA
Booz Allen Hamilton in Arlington, VA, USA

Publication Topics

Biography

John Patrick Stang (Member, IEEE) received the B.S., M.S., and Ph.D. degrees in electrical engineering from Duke University, Durham, NC, USA, in 2004, 2007, and 2008, respectively.,He is currently a Research Assistant Professor with the Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA. His research interests involve developing acoustic, electrical, microwave-, and millimeter-wave systems in the areas of life sciences and environmental remote sensing, with a particular focus on numerical multiscale and multiphysics models and hardware system development. This work has led to novel devices for cancer screening, focused microwave therapy, and real-time temperature monitoring and guidance of thermal therapi...
Publications
27
Citations
713
Publications by Year
20082022
Co-Authors:
Show All Co-Authors (40)
Author's Published Works

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A Versatile and Shelf-Stable Dielectric Coupling Medium for Microwave Imaging

Yuan Fang;Kazem Bakian-Dogaheh;John Stang;Alireza Tabatabaeenejad;Mahta Moghaddam

IEEE Transactions on Biomedical Engineering
Year: 2022 | Volume: 69, Issue: 8 | Journal Article |
Cited by: Papers (6)
Objective: To develop a new class of emulsions using a protein-based emulsifier as the coupling fluid for microwave imaging systems. Methods: In this paper, we provide a theoretical basis for engineering shelf-stable dielectric fluids, a step-by-step formulation method, and measurements of complex dielectric properties in the frequency range of 0.5-3 GHz, which can be applicable for many of the re...Show More

A Versatile and Shelf-Stable Dielectric Coupling Medium for Microwave Imaging

Yuan Fang;Kazem Bakian-Dogaheh;John Stang;Alireza Tabatabaeenejad;Mahta Moghaddam

Year: 2022 | Volume: 69, Issue: 8 | Journal Article |

On the Design of Planar Arrays of Nonresonant Coils for Tunable Wireless Power Transfer Applications

Danilo Brizi;John Patrick Stang;Agostino Monorchio;Gianluca Lazzi

IEEE Transactions on Microwave Theory and Techniques
Year: 2020 | Volume: 68, Issue: 9 | Journal Article |
Cited by: Papers (24)
In this article, we introduce a novel array-based system for inductive wireless power transfer (WPT) applications and a procedure for its design, which can be interpreted as a generalization of the traditional three-coil systems where the intermediate passive resonant coil (i.e., the transmitter) is replaced with an array of nonresonant concentric loops. We demonstrate that the new WPT array syste...Show More

On the Design of Planar Arrays of Nonresonant Coils for Tunable Wireless Power Transfer Applications

Danilo Brizi;John Patrick Stang;Agostino Monorchio;Gianluca Lazzi

Year: 2020 | Volume: 68, Issue: 9 | Journal Article |

Wireless Telemetry System With Independent Power and Data Frequency Resonance

Manjunath Machnoor;Javad Paknahad;John Stang;Gianluca Lazzi

IEEE Antennas and Wireless Propagation Letters
Year: 2020 | Volume: 19, Issue: 4 | Journal Article |
Cited by: Papers (15)
Wireless power and data transmission systems are important components in bioelectronics. Achieving resonance at the data transmission frequency without negatively impacting the efficiency at the power transmission frequency may enhance data transmission capability. In this letter, a new system referred to as tuned inductor four capacitor is proposed to achieve resonance at the data transmission fr...Show More

Wireless Telemetry System With Independent Power and Data Frequency Resonance

Manjunath Machnoor;Javad Paknahad;John Stang;Gianluca Lazzi

Year: 2020 | Volume: 19, Issue: 4 | Journal Article |

A Compact Magnetically Dispersive Surface for Low-Frequency Wireless Power Transfer Applications

Danilo Brizi;John Patrick Stang;Agostino Monorchio;Gianluca Lazzi

IEEE Transactions on Antennas and Propagation
Year: 2020 | Volume: 68, Issue: 3 | Journal Article |
Cited by: Papers (50)
We present a compact, magnetically dispersive engineered surface for resonant inductive wireless power transfer (WPT) that significantly enhances the performance of an inductive link, increasing the efficiency and/or working distance. The proposed metasurface measures 6 cm × 6 cm × 0.1 cm, achieving a greatly reduced thickness over a 3-D metamaterial, especially relative to the long wavelength at ...Show More

A Compact Magnetically Dispersive Surface for Low-Frequency Wireless Power Transfer Applications

Danilo Brizi;John Patrick Stang;Agostino Monorchio;Gianluca Lazzi

Year: 2020 | Volume: 68, Issue: 3 | Journal Article |

Learning-Assisted Multimodality Dielectric Imaging

Guanbo Chen;Pratik Shah;John Stang;Mahta Moghaddam

IEEE Transactions on Antennas and Propagation
Year: 2020 | Volume: 68, Issue: 3 | Journal Article |
Cited by: Papers (53)
We introduce a convolutional neural network (CNN)-assisted dielectric imaging method, which uses CNN to incorporate the abundant image information from magnetic resonance (MR) images into the model-based microwave inverse scattering imaging process and generate high-fidelity dielectric images. A CNN is designed and trained to learn the complex mapping function from MR T1 images to dielectric image...Show More

Learning-Assisted Multimodality Dielectric Imaging

Guanbo Chen;Pratik Shah;John Stang;Mahta Moghaddam

Year: 2020 | Volume: 68, Issue: 3 | Journal Article |

Ultrawideband Synthesis for High-Range-Resolution Software-Defined Radar

Samuel Prager;Tushar Thrivikraman;Mark S. Haynes;John Stang;David Hawkins;Mahta Moghaddam

IEEE Transactions on Instrumentation and Measurement
Year: 2020 | Volume: 69, Issue: 6 | Journal Article |
Cited by: Papers (38)
This article presents a design for implementing an ultrawideband (UWB) software-defined radar (SDRadar) using a bandwidth reconstruction technique, called frequency stacking, for a stepped frequency signal to create a synthetic wideband waveform (SWW). Practical methods of overcoming traditional limitations of SDRadar and stepped chirp radar are introduced, and the performance is demonstrated usin...Show More

Ultrawideband Synthesis for High-Range-Resolution Software-Defined Radar

Samuel Prager;Tushar Thrivikraman;Mark S. Haynes;John Stang;David Hawkins;Mahta Moghaddam

Year: 2020 | Volume: 69, Issue: 6 | Journal Article |

Recent Advances in Computational and Experimental Bioelectromagnetics for Neuroprosthetics

John Stang;Guanbo Chen;Pragya Kosta;Javad Paknahad;Manjunath Machnoor;Ege Iseri;Jinze Du;Danilo Brizi;Kyle Loizos;Gianluca Lazzi

2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)
Year: 2019 | Conference Paper |
Cited by: Papers (9)
Our group has developed a modular computational framework that integrates in space and time: (1) an admittance/impedance (AM/IM) multiresolution method capable of predicting currents induced in microscale models of nerves due to neurostimulators of arbitrary geometry with (2) a neural simulation environment (NEURON) capable of predicting nerve excitation. This integration is achieved by coupling h...Show More

Recent Advances in Computational and Experimental Bioelectromagnetics for Neuroprosthetics

John Stang;Guanbo Chen;Pragya Kosta;Javad Paknahad;Manjunath Machnoor;Ege Iseri;Jinze Du;Danilo Brizi;Kyle Loizos;Gianluca Lazzi

Year: 2019 | Conference Paper |

Analysis and Design of a 3-Coil Wireless Power Transmission System for Biomedical Applications

Manjunath Machnoor;Erik Saturnino Gámez Rodríguez;Pragya Kosta;John Stang;Gianluca Lazzi

IEEE Transactions on Antennas and Propagation
Year: 2019 | Volume: 67, Issue: 8 | Journal Article |
Cited by: Papers (47)
Wireless power transfer is a practical and widely used method to power various implantable devices. Commonly, the implanted receiver (RX) must be small, often on the order of millimeter, which poses significant design challenges. In this paper, a technique to improve the performance of systems with a size (inductance)-limited implanted RX coil is explored. Conventionally, only mutual coupling betw...Show More

Analysis and Design of a 3-Coil Wireless Power Transmission System for Biomedical Applications

Manjunath Machnoor;Erik Saturnino Gámez Rodríguez;Pragya Kosta;John Stang;Gianluca Lazzi

Year: 2019 | Volume: 67, Issue: 8 | Journal Article |

3-D Level Set Method for Joint Contrast and Shape Recovery in Microwave Imaging

Pratik Shah;Guanbo Chen;John Stang;Mahta Moghaddam

IEEE Transactions on Computational Imaging
Year: 2019 | Volume: 5, Issue: 1 | Journal Article |
Cited by: Papers (7)
We propose a three-dimensional (3-D) fast level set method, which can estimate both object shape and dielectric contrast with reduced computational cost. In prior work, we presented a 2-D fast level set method that integrated the level set inversion within the Born iterative method (BIM). This approach significantly reduced the computational cost; however, it was limited to estimating object shape...Show More

3-D Level Set Method for Joint Contrast and Shape Recovery in Microwave Imaging

Pratik Shah;Guanbo Chen;John Stang;Mahta Moghaddam

Year: 2019 | Volume: 5, Issue: 1 | Journal Article |

Ultra-wideband synthesis for high-range resolution software defined radar

Samuel Prager;Tushar Thrivikraman;Mark Haynes;John Stang;David Hawkins;Mahta Moghaddam

2018 IEEE Radar Conference (RadarConf18)
Year: 2018 | Conference Paper |
This paper presents a design for implementing an ultra-wideband (UWB) Software Defined Radar (SDRadar) using a bandwidth reconstruction technique for a stepped frequency signal called frequency stacking to create a synthetic wideband waveform (SWW). Practical methods of overcoming traditional limitations of SDRadar and stepped chirp radar are introduced and performance is demonstrated using a comm...Show More

Ultra-wideband synthesis for high-range resolution software defined radar

Samuel Prager;Tushar Thrivikraman;Mark Haynes;John Stang;David Hawkins;Mahta Moghaddam

Year: 2018 | Conference Paper |

Real-Time Three-Dimensional Microwave Monitoring of Interstitial Thermal Therapy

Guanbo Chen;John Stang;Mark Haynes;Eric Leuthardt;Mahta Moghaddam

IEEE Transactions on Biomedical Engineering
Year: 2018 | Volume: 65, Issue: 3 | Journal Article |
Cited by: Papers (55)
We report a method for real-time threedimensional monitoring of thermal therapy through the use of noncontact microwave imaging. This method is predicated on using microwaves to image changes in the dielectric properties of tissue with changing temperature. Instead of the precomputed linear Born approximation that was used in prior work to speed up the frame-to-frame inversions, here we use the no...Show More

Real-Time Three-Dimensional Microwave Monitoring of Interstitial Thermal Therapy

Guanbo Chen;John Stang;Mark Haynes;Eric Leuthardt;Mahta Moghaddam

Year: 2018 | Volume: 65, Issue: 3 | Journal Article |

Real-time tracking of metallic treatment probe in interstitial thermal therapy

Guanbo Chen;John Stang;Mahta Moghaddam

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)
Year: 2017 | Conference Paper |
In this paper, we propose an inverse scattering method with compressive sensing to image and track the metallic ablation probe during the interstitial thermal therapy. The contrast source inversion (CSI) method is used to solve the inverse scattering problem, which determines the location of the probe by utilizing the scattered field data produced by the contrast source current at the probe surfac...Show More

Real-time tracking of metallic treatment probe in interstitial thermal therapy

Guanbo Chen;John Stang;Mahta Moghaddam

Year: 2017 | Conference Paper |

Numerical Vector Green’s Function for S-Parameter Measurement With Waveport Excitation

Guanbo Chen;John Stang;Mahta Moghaddam

IEEE Transactions on Antennas and Propagation
Year: 2017 | Volume: 65, Issue: 7 | Journal Article |
Cited by: Papers (7)
We present a numerical vector Green's function that directly links the object material property within the electric field volume integral equation (VIE) to the scattered S-parameters. This Green's function is particularly useful for microwave inverse scattering applications in which S-parameter measurements are used to reconstruct the dielectric properties of unknown objects in an inhomogeneous ba...Show More

Numerical Vector Green’s Function for S-Parameter Measurement With Waveport Excitation

Guanbo Chen;John Stang;Mahta Moghaddam

Year: 2017 | Volume: 65, Issue: 7 | Journal Article |

Microresonator for Microwave Cancer Therapy

Yifei Wang;Meng Yu;John Stang;Eugene Chung;Mahta Moghaddam;Wei Wu

IEEE Journal on Multiscale and Multiphysics Computational Techniques
Year: 2016 | Volume: 1 | Journal Article |
Cited by: Papers (2)
This paper presents a numerical analysis on metallic micro/nanoparticles as LC-circuit resonators at microwave frequencies and with strong absorption for cancer therapy. We pushed the LC -structure design to the limit to provide an optimized structure within desired size limits, which can achieve resonance at the frequencies commonly used in interstitial microwave thermal therapies. Moreover, we d...Show More

Microresonator for Microwave Cancer Therapy

Yifei Wang;Meng Yu;John Stang;Eugene Chung;Mahta Moghaddam;Wei Wu

Year: 2016 | Volume: 1 | Journal Article |

A Conformal FDTD Method With Accurate Waveport Excitation and S-Parameter Extraction

Guanbo Chen;John Stang;Mahta Moghaddam

IEEE Transactions on Antennas and Propagation
Year: 2016 | Volume: 64, Issue: 10 | Journal Article |
Cited by: Papers (13)
We demonstrate a conformal finite-difference time domain (CFDTD) technique with accurate waveport excitation and S-parameter extraction. We discuss, under the CFDTD framework, object modeling with effective subcell material, impedance calibration for the conformal modeled coaxial feed, waveport mode calculation with a newly developed conformal 2-D finite-difference frequency domain solver, wavepor...Show More

A Conformal FDTD Method With Accurate Waveport Excitation and S-Parameter Extraction

Guanbo Chen;John Stang;Mahta Moghaddam

Year: 2016 | Volume: 64, Issue: 10 | Journal Article |

Advances in real-time non-contact monitoring of medical thermal treatment through multistatic array microwave imaging

John Stang;Guanbo Chen;Mark Haynes;Mahta Moghaddam

2015 IEEE Conference on Antenna Measurements & Applications (CAMA)
Year: 2015 | Conference Paper |
In this paper, we present some recent advances in real-time non-contact monitoring of thermal treatment through multistatic array imaging. The work presented was primarily motivated by the need to improve the flexibility and computational efficiency of the forward modeling of microwave imaging systems in general and of our real-time microwave thermal monitoring system in particular. Specifically, ...Show More

Advances in real-time non-contact monitoring of medical thermal treatment through multistatic array microwave imaging

John Stang;Guanbo Chen;Mark Haynes;Mahta Moghaddam

Year: 2015 | Conference Paper |

FDTD based numerical Green's function for S-parameter measurement in inverse scattering problems

Guanbo Chen;John Stang;Mahta Moghaddam

2015 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)
Year: 2015 | Conference Paper |
We present a numerical Green's function that serves as the kernel for volume integral equation (VIE) in inverse scattering problems. The primary motivation for this research is to address the lack of full antenna modeling in the VIE when solving inverse scattering problems. The numerical Green's function introduced here directly links the total field in the object domain and the object's dielectri...Show More

FDTD based numerical Green's function for S-parameter measurement in inverse scattering problems

Guanbo Chen;John Stang;Mahta Moghaddam

Year: 2015 | Conference Paper |

An optimized GPU-accelerated FDTD method for microwave imaging using a fast nonlinear inverse scattering algorithm

Guanbo Chen;John Stang;Mark Haynes;Mahta Moghaddam

2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)
Year: 2014 | Conference Paper |
Summary form only given: Microwave imaging has received considerable attention as a low cost, non-invasive, non-ionizing method for breast cancer detection. In previous work, we have presented a time-domain nonlinear inverse scattering algorithm with multiparameter optimization for microwave imaging. In order to apply this algorithm to an experimental system that we have developed, it is crucial t...Show More

An optimized GPU-accelerated FDTD method for microwave imaging using a fast nonlinear inverse scattering algorithm

Guanbo Chen;John Stang;Mark Haynes;Mahta Moghaddam

Year: 2014 | Conference Paper |

A preclinical system for focused microwave thermal therapy with integrated real-time 3D microwave thermal monitoring

Mark Haynes;John Stang;Guanbo Chen;Mahta Moghaddam

2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)
Year: 2014 | Conference Paper |
Cited by: Papers (1)
The use of focused microwave thermal therapy as an adjuvant to radiatior and chemotherapy for breast cancer treatment continues to be an active a of research with the aim of reducing local recurrence, as well as reducing harmful side effects and cosmetic harm of traditional treatments. With it, there is a clinical need for real-time, non-invasive monitoring of subcutaneous heat deposition.Show More

A preclinical system for focused microwave thermal therapy with integrated real-time 3D microwave thermal monitoring

Mark Haynes;John Stang;Guanbo Chen;Mahta Moghaddam

Year: 2014 | Conference Paper |

Real-time Microwave Imaging of Differential Temperature for Thermal Therapy Monitoring

Mark Haynes;John Stang;Mahta Moghaddam

IEEE Transactions on Biomedical Engineering
Year: 2014 | Volume: 61, Issue: 6 | Journal Article |
Cited by: Papers (99)
A microwave imaging system for real-time 3-D imaging of differential temperature has been developed for the monitoring and feedback of thermal therapy systems. Design parameters are constrained by features of a prototype-focused microwave thermal therapy system for the breast, operating at 915 MHz. Real-time imaging is accomplished with a precomputed linear inverse scattering solution combined wit...Show More

Real-time Microwave Imaging of Differential Temperature for Thermal Therapy Monitoring

Mark Haynes;John Stang;Mahta Moghaddam

Year: 2014 | Volume: 61, Issue: 6 | Journal Article |

A Preclinical System Prototype for Focused Microwave Thermal Therapy of the Breast

John Stang;Mark Haynes;Paul Carson;Mahta Moghaddam

IEEE Transactions on Biomedical Engineering
Year: 2012 | Volume: 59, Issue: 9 | Journal Article |
A preclinical prototype of a transcutaneous thermal therapy system has been developed for the targeted treatment of breast cancer cells using focused microwaves as an adjuvant to radiation, chemotherapy, and high-intensity-focused ultrasound. The prototype system employs a 2-D array of tapered microstrip patch antennas operating at 915 MHz to focus continuous-wave microwave energy transcutaneously...Show More

A Preclinical System Prototype for Focused Microwave Thermal Therapy of the Breast

John Stang;Mark Haynes;Paul Carson;Mahta Moghaddam

Year: 2012 | Volume: 59, Issue: 9 | Journal Article |

Ongoing development of microwave breast imaging system components

Mark Haynes;Line van Nieuwstadt;Steven Clarkson;John Stang;Clare Ward;Mahta Moghaddam

2011 XXXth URSI General Assembly and Scientific Symposium
Year: 2011 | Conference Paper |
Cited by: Papers (1)
We present ongoing work at the University of Michigan toward the goal of developing a microwave inverse scattering system for breast cancer imaging. The algorithm is built around the Born Iterative Method with a modified cost function allowing inclusion of a priori information. The calibration is based on a new formulation for S-parameter measurements. The liquid matching medium is an oil-water em...Show More

Ongoing development of microwave breast imaging system components

Mark Haynes;Line van Nieuwstadt;Steven Clarkson;John Stang;Clare Ward;Mahta Moghaddam

Year: 2011 | Conference Paper |

Microwave Imaging in Layered Media: 3-D Image Reconstruction From Experimental Data

Chun Yu;Mengqing Yuan;Yangjun Zhang;John Stang;Rhett T. George;Gary A. Ybarra;William T. Joines;Qing Huo Liu

IEEE Transactions on Antennas and Propagation
Year: 2010 | Volume: 58, Issue: 2 | Journal Article |
Cited by: Papers (40)
A prototype microwave imaging system for imaging 3-D targets in layered media is developed to validate the capability of microwave imaging with experimental data and with 3-D nonlinear inverse scattering algorithms. In this experimental prototype, the transmitting and receiving antennas are placed in a rectangular tub containing a fluid. Two plastic slabs are placed in parallel in the fluid to for...Show More

Microwave Imaging in Layered Media: 3-D Image Reconstruction From Experimental Data

Chun Yu;Mengqing Yuan;Yangjun Zhang;John Stang;Rhett T. George;Gary A. Ybarra;William T. Joines;Qing Huo Liu

Year: 2010 | Volume: 58, Issue: 2 | Journal Article |

A tapered microstrip patch antenna array for use in breast cancer screening via 3D active microwave imaging

John P. Stang;William T. Joines;Qing H. Liu;Gary A. Ybarra;Rhett T. George;Mengqing Yuan;Ignacio Leonhardt

2009 IEEE Antennas and Propagation Society International Symposium
Year: 2009 | Conference Paper |
Cited by: Papers (7)
Given the measured performance of the antennas in the imaging array and the modeled scattered field data of small tumors within the human breast model, along with the known parameters associated with the other system components (e.g. losses through RF switching system and sensitivity of the measurement device), detection and screening of tumors with the clinical microwave imaging array that has be...Show More

A tapered microstrip patch antenna array for use in breast cancer screening via 3D active microwave imaging

John P. Stang;William T. Joines;Qing H. Liu;Gary A. Ybarra;Rhett T. George;Mengqing Yuan;Ignacio Leonhardt

Year: 2009 | Conference Paper |

Tapered microstrip patch antenna array for microwave breast imaging

John P. Stang;William T. Joines

2008 IEEE MTT-S International Microwave Symposium Digest
Year: 2008 | Conference Paper |
Cited by: Papers (14)
Microwave breast imaging is based on the electrical property contrast between healthy and malignant breast tissue. This contrast can be detected using an array of antennas that illuminate the breast with microwave energy through a coupling medium and subsequently measure the resulting scattered fields. An optimal antenna array design will improve a microwave imaging system’s ability to detect and ...Show More

Tapered microstrip patch antenna array for microwave breast imaging

John P. Stang;William T. Joines

Year: 2008 | Conference Paper |

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