Search Results - "Gandji, Navid"

Large improvement in RF magnetic fields and imaging SNR with whole-head high-permittivity slurry helmet for human-brain MRI applications at 7 T by Soon, Soo Han, Li, Xin, Waks, Matt, Zhu, Xiao-Hong, Wiesner, Hannes M, Gandji, Navid P, Yang, Qing X, Lanagan, Michael T, Chen, Wei

“…To optimize the design and demonstrate the integration of a helmet-shaped container filled with a high-permittivity material (HPM) slurry with RF head coil…”
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Development and Experimental Testing of Microstrip Patch Antenna-Inspired RF Probes for 14 T MRI Scanners by Gandji, Navid P., Lee, Gangchea, Semouchkin, George, Semouchkina, Elena, Neuberger, Thomas, Lanagan, Michael

“…Radio frequency (RF) probes for ultrahigh-field magnetic resonance imaging (MRI) systems were developed from structures inspired by microstrip patch antennas…”
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Antenna‐based solutions for RF probes in ultra high field magnetic resonance imaging scanners by Gandji, Navid P., Semouchkin, George, Semouchkina, Elena

“…Various approaches to designing unconventional antenna‐based RF probes for obtaining homogeneous 600 MHz B1 magnetic field in 14 T MRI scanners are…”
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Toward whole‐cortex enhancement with an ultrahigh dielectric constant helmet at 3T by Sica, Christopher T., Rupprecht, Sebastian, Hou, Ryan J., Lanagan, Matthew T., Gandji, Navid P., Lanagan, Michael T., Yang, Qing X.

“…Purpose To present a 3T brain imaging study using a conformal prototype helmet constructed with an ultra‐high dielectric constant (uHDC; εr ~ 1000) materials…”
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Displacement current distribution on a high dielectric constant helmet and its effect on RF field at 10.5 T (447 MHz) by Gandji, Navid P., Sica, Christopher T., Lanagan, Michael T., Woo, Myung‐Kyun, DelaBarre, Lance, Radder, Jerahmie, Zhang, Bei, Lattanzi, Riccardo, Adriany, Gregor, Ugurbil, Kamil, Yang, Qing X.

“…Purpose Investigating the designs and effects of high dielectric constant (HDC) materials in the shape of a conformal helmet on the enhancement of RF field and…”
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Tunable Ultrahigh Dielectric Constant (tuHDC) Ceramic Technique to Largely Improve RF Coil Efficiency and MR Imaging Performance by Chen, Wei, Lee, Byeong-Yeul, Zhu, Xiao-Hong, Wiesner, Hannes M., Sarkarat, Maryam, Gandji, Navid P., Rupprecht, Sebastian, Yang, Qing X., Lanagan, Michael T.

“…This work introduces an innovative magnetic resonance (MR) imaging technology that incorporates radiofrequency (RF) coil(s) with permittivity-tunable ultrahigh…”
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Scattering From Dielectric Metasurfaces in Optical and Microwave Ranges by Jamilan, Saeid, Gandji, Navid P., Semouchkin, George, Safari, Fatemeh, Semouchkina, Elena

“…Metasurfaces composed of cylindrical dielectric resonators, responding either in optical or microwave ranges, are investigated with the goal of clarifying…”
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Investigation and design of an ultra-wideband fractal ring antenna for notch applications by Rahimi, Maryam, Heydari, Samaneh, Mansouri, Zahra, Gandji, Navid P., Zarrabi, Ferdows B.

“…ABSTRACT In this article, an ultra wideband ring antenna with a fractal formation for notch application is presented. The antenna was printed on FR‐4…”
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Novel optical polarizer design based on metasurface nano aperture for biological sensing in mid-infrared regime by Heydari, Samaneh, Bazgir, Maryam, Zarrabi, Ferdows B., Gandji, Navid P., Rastan, Iman

“…Since Metasurfaces are playing important roles in optical devices such as optical polarizers and detectors, in this article, we have proposed a novel shape of…”
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Ultra-wideband tapered patch antenna with fractal slots for dual notch application by Zarrabi, Ferdows B., Shire, A.M., Rahimi, Maryam, Gandji, Navid P.

“…ABSTRACT In this article, the ultra‐wideband tapered patch antenna with fractal slots for dual notch application is presented. The antenna is printed on FR‐4…”
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Modification of Vivaldi Antenna for 2-18 GHz UWB Application with Substrate Integration Waveguide Structure and Comb Slots by Zarrabi, Ferdows B, Gandji, Navid P, Ahmadian, Rahele, Kuhestani, Hamed, Mansouri, Zahra

“…In this paper have been developed two new Vivaldi antenna for UWB application at 2-18 GHz with SIW structure for linear phase center labeled as antenna I and…”
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Field-Simulation Based Engineering of RF Antenna Probes with Non-Uniform Substrates for High-Field Magnetic Resonance Imaging Systems by Gandji, Navid P, Palle, Akshay V, Semouchkin, George B, Semouchkina, Elena

“…It is proposed to replace RF volume coils in high-field Magnetic Resonance Imaging (MRI) scanners by a microstrip patch antenna system. The performed…”
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Dielectric Resonance Modes Effect on Enhancing the Rx-Sensitivity in Magnetic Resonance Imaging (MRI) RF Coil by Lotfi, Parisa, Gandji, Navid P., Lanagan, Michael, Yang, Qing X.

“…Dielectric resonators with Ultra-High Dielectric Constant (uHDC) materials possess intrinsic resonance modes which can be employed in the design of transceiver…”
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Triple-notch UWB monopole antenna with fractal Koch and T-shaped stub by Zarrabi, Ferdows B., Mansouri, Zahra, Gandji, Navid P., Kuhestani, Hamed

“…In this study, a triple-notch ultra-wideband (UWB) monopole antenna with fractal Koch and T-shaped stub is presented. The prototype antenna is based on a…”
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Independent polarization and multi-band THz absorber base on Jerusalem cross by Arezoomand, Afsaneh Saee, Zarrabi, Ferdows B., Heydari, Samaneh, Gandji, Navid P.

“…In this paper, we present the design and simulation of a single and multi-band perfect metamaterial absorber (MA) in the THz region base on Jerusalem cross…”
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Towards whole-cortex enhancement with a ultrahigh dielectric constant helmet at 3T by Sica, Christopher T., Rupprecht, Sebastian, Hou, Ryan J., Lanagan, Matthew T., Gandji, Navid P., Lanagan, Michael T., Yang, Qing X.

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Sub wavelength plasmonic nano-antenna with modified SRR structure for Fano resonance by Zarrabi, Ferdows B., Pandesh, Saeedeh, Gandji, Navid, Arezomand, Afsaneh Saee

“…The optical electric field enhancement in the normal direction is noticed for Plasmonic and Fano mode at Nano antenna, therefore, we have modeled four various…”
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Employing Dielectric-Based Media for Controlling Field Patterns and Wave Propagation in Advanced Electromagnetic Devices by Pourramzan Gandji, Navid

“…Rapid progress in developing electromagnetic devices and in governing the wave propagation during last years caused renewed interest to dielectric materials…”
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A Novel Wideband and Wide Beam High Gain Unidirectional Dipole Antenna for Next Generation WLAN Applications by Kalavakuru, Sivadeep R, Gandji, Navid P, Cyphert, Jonathan P

“…In this paper, a novel wideband and widebeam unidirectional magneto-electric (ME) dipole antenna for Wi-Fi-7 (5.18-7.125GHz) applications is presented. The…”
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Harmonics blocking in the inset fed microstrip patch antenna using cascaded defected microstrip structure by Kazerooni, Morteza, Gandji, Navid PourRamzan, Cheldavi, Ahmad, Kamarei, Mahmoud

“…In this article a cascaded defected microstrip structures (CDMS) is proposed as the feed line of an inset patch microstrip antenna. Using this feed line, the…”
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