Goutam Chattopadhyay
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View article: Water Hunting Advanced Terahertz Spectrometer on an Ultra-Small Platform (WHATSUP)
Water Hunting Advanced Terahertz Spectrometer on an Ultra-Small Platform (WHATSUP) Open
The search for extraterrestrial bio-signatures and the origin of Earth’s water remain two of the most compelling questions in planetary science. While no direct evidence of life beyond Earth has been found, water is a key prerequisite for …
View article: Relative observing speed of lens-coupled absorber focal plane arrays for far-IR imaging and spectroscopy: a PRIMA case study
Relative observing speed of lens-coupled absorber focal plane arrays for far-IR imaging and spectroscopy: a PRIMA case study Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: Flat silicon gradient index lens with deep reactive-ion-etched 3-layer anti-reflection structure for millimeter and submillimeter wavelengths
Flat silicon gradient index lens with deep reactive-ion-etched 3-layer anti-reflection structure for millimeter and submillimeter wavelengths Open
We present the design, fabrication, and characterization of a 100 mm diameter, flat, gradient-index (GRIN) lens fabricated with high-resistivity silicon, combined with a three-layer anti-reflection (AR) structure optimized for 160-355 GHz.…
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Microwave and Wireless Technology Letters publication
IEEE Microwave and Wireless Technology Letters publication Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: A UAV Based CMOS Ku-Band Metasurface FMCW Radar System for Low-Altitude Snowpack Sensing
A UAV Based CMOS Ku-Band Metasurface FMCW Radar System for Low-Altitude Snowpack Sensing Open
This article presents development of a UAV based frequency modulated continuous wave (FMCW) radar system for remotely sensing the water contained within snowpacks. To make the radar system compatible with the payload requirements of small …
View article: Promoting and Empowering the RF and Microwave Community in Costa Rica [MTT-S Society News]
Promoting and Empowering the RF and Microwave Community in Costa Rica [MTT-S Society News] Open
Provides society information that may include news, reviews or technical notes that should be of interest to practitioners and researchers.
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz
Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz Open
Terahertz heterodyne spectrometer instruments have been traditionally limited to a single pixel or a handful of pixels due to integration and assembly constraints and a limited availability of local oscillator (LO) power. As a solution we …
View article: Keynote Speakers
Keynote Speakers Open
At NASA, over the years, we have been developing radars for space science applications at thefrequency bands of microwave, millimeter-wave, and terahertz frequencies.These radars areprimarily used for Earth observations and planetary scien…
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: A New Strategy for Designing Dual-band Antennas Based on Double-layer Metasurfaces
A New Strategy for Designing Dual-band Antennas Based on Double-layer Metasurfaces Open
We present a new strategy for the design of dual-band planar antennas based on metasurfaces (MTSs) in the microwave and millimeter-wave regimes. It is based on a double layer structure obtained by cascading two subwavelength patterned meta…
View article: Advancing Microwave Technology for Humanitarian Causes: A Peek Into Recent IEEE MTT-S and AP-S SIGHT Workshops [Around the Globe]
Advancing Microwave Technology for Humanitarian Causes: A Peek Into Recent IEEE MTT-S and AP-S SIGHT Workshops [Around the Globe] Open
Over the past few decades, megahertz to terahertz technologies have witnessed unprecedented advances, and in the coming years, demand for higher-frequency systems is expected to grow further. However, we all know that the technologies that…
View article: An $f/0.27$ High-Gain Lens Antenna for Ultrasmall Platforms at THz Frequencies
An $f/0.27$ High-Gain Lens Antenna for Ultrasmall Platforms at THz Frequencies Open
The development of a low focal number and low-mass lens antenna is presented that enables terahertz spectroscopy applications on ultracompact platforms. The antenna operates efficiently over a 20% fractional bandwidth, from 450 to 550 GHz,…
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: Integrated Silicon Lens-Antenna based on a Top-Hat Leaky-Wave feed for Quasi-Optical Power Distribution at THz Frequencies
Integrated Silicon Lens-Antenna based on a Top-Hat Leaky-Wave feed for Quasi-Optical Power Distribution at THz Frequencies Open
In this paper, we present a quasi-optical power distribution architecture based on the use of an integrated lens antenna that generates a uniform aperture field distribution. By using such distribution in combination with an integrated len…
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation Information for Authors
IEEE Transactions on Antennas and Propagation Information for Authors Open
View article: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation Open
View article: IEEE Transactions on Antennas and Propagation Information for Authors
IEEE Transactions on Antennas and Propagation Information for Authors Open