Performance comparison of a corrugated horn with a spline profile horn for plasma diagnostics

Vishnu, Gupta Jay; Chaudhary, Sanket V; Pujara, Dhaval

doi:10.1109/nuicone.2017.8325615

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Figure 1. Basic block diagram of the reflectometry system for plasma diagnostics [20]. Plasma contains different layers with different density values as per the slab model [21].…”

Section: Reflectometry System For Plasma Diagnosticsmentioning

confidence: 99%

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Design and Development of a D-Band Corrugated Horn Antenna for Millimeter-Wave Plasma Diagnostics

Vishnu¹,

Pujara²,

Pandya³

2019

PIER Letters

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In fusion reaction, plasma parameters such as the density and temperature of electrons should be diagnosed continuously. There are various methods to diagnose plasma parameters. In these, reflectometry systems are widely used to measure the electron density and plasma physics study. In reflectometry systems, antenna plays an important role as a transmitter/receiver element. This paper presents the design of a D-band (110-170 GHz) corrugated horn antenna suitable for reflectometry system. The simulated results for antenna are compared with that of the measurements. Further, different structures are proposed to ease fabrication complexities and reduce cost.

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“…Figure 1. Basic block diagram of the reflectometry system for plasma diagnostics [20]. Plasma contains different layers with different density values as per the slab model [21].…”

Section: Reflectometry System For Plasma Diagnosticsmentioning

confidence: 99%

“…Therefore, the fabrication of a horn is quite challenging. In recent years, many researchers have proposed a few solutions to mitigate this challenge [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Design and Development of a D-Band Corrugated Horn Antenna for Millimeter-Wave Plasma Diagnostics

Vishnu¹,

Pujara²,

Pandya³

2019

PIER Letters

Self Cite

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New insights from broadband simulations into small overmoded smooth and corrugated terahertz waveguides and transitions for NMR-DNP

Doty

Staab

et al. 2021

Journal of Magnetic Resonance Open

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The primary impetus for the work reported in this paper is to develop efficient overmoded waveguides (OMWGs) that employ broadband downtaper transitions that would be compatible with the severe space constraints in high-field NB magnets. Further, it is essential these would be readily manufacturable, as high precision corrugated metallic downtapers for the sub-mmw regime are very difficult to produce. We have simulated numerous alternatives to corrugated circular OMWGs, including most of the previously reported alternatives (except for many of the low-power fiberoptics options) and several novel designs. We conclude that corrugated circular metallic OMWGs are the best of the reported options to date (except from a cost perspective) for diameters down to ~1.5 λ , but the corrugation parameters for small OMWGs need to be significantly different from the previously published guidelines that have worked well for large OMWGs. With numerically optimized small OMWGs, easily manufacturable smooth downtapers appear to work as well as corrugated downtapers in many cases relevant to MAS-DNP probes. Our example simulations will be for the 170–230 GHz range, but the lessons and results should be readily applicable to other ranges by simple scaling.

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Corrugated Horn Antenna as Mode Transition for Millimeter-wave Plasma Diagnostics System

Chaudhary

Pujara

Vishnu

et al. 2019

2019 IEEE Indian Conference on Antennas and Propogation (InCAP)

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Performance comparison of a corrugated horn with a spline profile horn for plasma diagnostics

Cited by 3 publications

References 8 publications

Design and Development of a D-Band Corrugated Horn Antenna for Millimeter-Wave Plasma Diagnostics

Design and Development of a D-Band Corrugated Horn Antenna for Millimeter-Wave Plasma Diagnostics

New insights from broadband simulations into small overmoded smooth and corrugated terahertz waveguides and transitions for NMR-DNP

Corrugated Horn Antenna as Mode Transition for Millimeter-wave Plasma Diagnostics System

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