Browsing by Author "O'Hara, John"
Now showing items 1-12 of 12
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AC-coupled substrate-integrated waveguide slot antenna in CMOS for terahertz applications
Anas, M. D. Toaha (2021-12)Substrate integrated waveguide (SIW) technology exhibits an emerging and very promising candidate for the development of circuits and components in the millimeter-wave region. As a part of the high-frequency wireless ... -
Dive into terahertz technology
Owens III, Robert (Oklahoma State University, 2022-07-25) -
Group velocity dispersion management in terahertz wireless communication channels
Strecker, Karl (2020-05)High-fidelity models of the atmosphere from 0.1 to 1 THz based on spectroscopic databases are used to examine the effect of group velocity dispersion on ultra-wideband THz links. Previous spectroscopic characterization of ... -
Metamaterial radiation from attenuated total reflection at terahertz frequencies
Ramani, Suchitra (2013-12)The focus of this research was to explore the behavior of two-dimensional planar metamaterials or metafilms and understand the various excitation schemes for application of metafilms to Terahertz-Attenuated Total Reflection ... -
Models and methods of quantitative single-fiber reflectance spectroscopy of tissue properties
Sun, Tengfei (Owen) (2019-12)Single-fiber reflectance spectroscopy has unique clinical applications not amendable to other types of spectroscopy technologies when assessing a very small tissue domain. SfRS aims to quantify light propagation in the ... -
Non-contact respiration monitoring through light wave sensing
Gotcher, Carly (Oklahoma State University, 2022-07-25) -
Reverberant electromagnetic fields within launch vehicle payload fairings
Kabiri, Shabir (2020-07)A launch vehicle payload fairing scale model has been designed, fabricated, and tested at Oklahoma State University to investigate the reverberant electromagnetic fields within launch vehicle fairings. The OSU fairing model ... -
Soil moisture monitoring with LoRa radios and UAVs
Captain, Levi; Hossain, Fahim; Messenger, Russ; Jacob, Jamey; Taghvaeian, Saleh; Ekin, Sabat (Oklahoma State University, 2021-07-28) -
Statistical behavior of electromagnetic fields within aperture-coupled nested reverberant cavities
Sowell, Marshall Daniel (2022-07)Reverberation chamber (RC) theory shows that the square-magnitude of a single spatial component of a received electric field within an ideally operating chamber follows an exponential distribution. Historical experimentation ... -
Terahertz diffuse reflectors and their effects on group delay dispersion and communication performance
Messenger, Russ (2021-12)Engineered terahertz diffuse reflectors were created using mixtures of paint and varying amounts of aluminum powder to improve the reflectivity and scattering properties of surfaces. The performance of these reflectors is ... -
Terahertz metamaterials: Refractive index, sensing, and resonances
Singh, Leena (2021-07)Engineering of high refractive index metamaterials at terahertz frequencies have been presented. Applications of terahertz metamaterials as sensor and polarization convertor have also been introduced. The metamaterials ... -
Towards non-contact glucose sensing in aqueous turbid medium at ∼1.1 meters distance
Piao, Daqing; O'Hara, John; Bukkapatnam, Satish; Ekin, Sabit (Institute of Electrical and Electronics Engineers (IEEE), 2020-07-30)This work demonstrates a non-contact diffuse reflectance approach with a working distance of ∼1.1 meters for the potential of glucose sensing. Non-contact diffuse reflectance over 1.1-1.3 μm was developed according to a ...