Chapter 3: microwave diagnostics

NC Luhmann Jr, H Bindslev, H Park… - Fusion Science and …, 2008 - Taylor & Francis
Microwave-based diagnostics have found broad application in magnetic fusion plasma
diagnostics and are expected to be widely employed in future burning plasma experiments …

On-chip power-combining for high-power Schottky diode based frequency multipliers

JVS Perez, G Chattopadhyay, C Lee… - US Patent …, 2015 - Google Patents
One or more embodiments of the invention disclose a Monolithic Microwave Integrated
Circuit (MMIC) multiplier device, comprising: two or more multiplying structures integrated on …

[PDF][PDF] Design of a high-power 1.6 THz Schottky tripler using 'on-chip'power-combining and Silicon micromachining

JV Siles, B Thomas, G Chattopadhyay… - Proceedings of 22 nd …, 2011 - nrao.edu
In this work, we present a novel concept for power-combined high-power frequency
multipliers consisting of four multiplying structures integrated on a single-chip with the input …

Design and Realization of Multi-Output, Ka-Band Frequency Synthesizer with High Output Power

A Bhattacharya, S Bhattacharyya… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
This paper presents a Phased Locked Loop (PLL) based compact, dual output, high output
power frequency synthesizer (FS) for generating local oscillator (LO) signals at 28.2 GHz …

[PDF][PDF] Coherent detection and SIS mixers

J Zmuidzinas, A Karpov, D Miller, F Rice… - Far-IR, Sub-mm and MM …, 2002 - Citeseer
Submillimeter spectroscopy is a unique and very rich source of astrophysical information.
While many important results have been obtained using ground based telescopes, the …

Terahertz-frequency receiver instrumentation for Herschel's heterodyne instrument for far infrared (HIFI)

JC Pearson, I Mehdi, E Schlecht… - IR Space …, 2003 - spiedigitallibrary.org
The Heterodyne Instrument for Far Infrared (HIFI) on ESA's Herschel Space Observatory is
comprised of five SIS receiver channels covering 480-1250 GHz and two HEB receiver …

Design of a Schottky Metal-Brim Structure to Optimize 180–220 GHz Broadband Frequency Doubler MMIC

L Qi, J Meng, X Liu, C Yang, J Zhou, D Zhang, Z Jin - Electronics, 2020 - mdpi.com
The present work proposes a 180–225 GHz broadband frequency doubler monolithic
microwave integrated circuit (MMIC) based on a novel Schottky barrier diode (SBD) terminal …

Local oscillator sub-systems for array receivers in the 1-3 THz range

I Mehdi, JV Siles, A Maestrini, R Lin… - … , and Far-Infrared …, 2012 - spiedigitallibrary.org
Recent results from the Heterodyne Instrument for the Far-Infrared (HIFI) on the Herschel
Space Telescope have confirmed the usefulness of high resolution spectroscopic data for a …

[图书][B] Heterodyne arrays at submillimeter wavelengths

G Chattopadhyay - 2005 - submm.caltech.edu
Heterodyne receivers, which down-convert radio frequency (RF) signals to intermediate
frequency (IF) signals–preserving the amplitude and phase information of the incoming …

Temperature behavior of Gunn oscillations in planar InGaAs diodes

JA Novoa-López, G Paz-Martinez… - IEEE Electron …, 2021 - ieeexplore.ieee.org
Planar Gunn diodes on In 0.53 Ga 0.47 As with lengths between 2 and 5 μm have been
fabricated and characterized in a temperature range of 10 to 300 K. Two different oscillation …