Transmission deviations in waveguide due to mode conversion: theory and experiment

Rowe, Harrison E.; Warters, W. D.

doi:10.1049/pi-b-2.1959.0005

Cited by 14 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This approach is general, complete, and applicable to all possible modes. It should be mentioned that all other previous works (such as in [15], [28], [37], [38], [39], and [40]) mainly focused on the dominant TE 11 mode and with limited analytical derivations and results provided. Recently, a similar theoretical treatment was documented in [41], concerning coaxial waveguide configurations, but for all the possible modes as well (TEM, TE, TM) and where analytical expressions for the power flow and losses were reported.…”

Section: Appendix Bmentioning

confidence: 99%

Microwave System Development for Wireless Communications Inside Oil and Gas Well Pipelines

Kossenas

Podilchak

Beveridge³

2023

IEEE J. Microw.

View full text Add to dashboard Cite

The modelling and design of a full wireless microwave communication system is examined, where the signal propagates within an overmoded circular metallic pipeline. Applications include the oil and gas industry. A specific link budget equation was also developed for the S-band transmission system and measured successfully using a 36-meter carbon steel pipeline, which can be easily extended to more than 150 meters. Also, based on the measured system data, the receiver sensitivity was determined to be −77 dBm and 15 dB in terms of the signal-to-noise ratio (SNR). Additionally, some digitized images, sensory information such as temperature and pressure, and live stream videos were successfully transmitted and monitored in realtime, using N210 universal software radio peripheral (USRP) modems by National Instruments and coded in Matlab/Simulink and LabVIEW. To the best knowledge of the authors, no similar microwave communication system has been developed with supporting theory, full wave simulations, and measurements for propagation within for oil and gas industry wells.INDEX TERMS Circular waveguide, digitized image, mandrel, live stream video, OFDM, oil and gas well, sensory data, transmission path loss, Yagi-Uda PCB-based antenna.

show abstract

Section: Appendix Bmentioning

confidence: 99%

Microwave System Development for Wireless Communications Inside Oil and Gas Well Pipelines

Kossenas

Podilchak

Beveridge³

2023

IEEE J. Microw.

View full text Add to dashboard Cite

show abstract

“…Light transmission in waveguides with periodic imperfections [ 74 ] results in mode conversion/coupling and was studied in both rectangular and round waveguides [ 75 ]. The LPG was first proposed in 1996 [ 76 ] and essentially introduces a coupling between the fundamental forward-propagating core mode and forward-propagating cladding mode.…”

Section: Nonresonant Micro/nanofiber Temperature Sensorsmentioning

confidence: 99%

A Review of Microfiber-Based Temperature Sensors

Talataisong

Ismaeel

Brambilla

2018

Sensors

View full text Add to dashboard Cite

Optical microfiber-based temperature sensors have been proposed for many applications in a variety of industrial uses, including biomedical, geological, automotive, and defense applications. This increasing demand for these micrometric devices is attributed to their large dynamic range, high sensitivity, fast-response, compactness and robustness. Additionally, they can perform in-situ measurements remotely and in harsh environments. This paper presents an overview of optical microfibers, with a focus on their applications in temperature sensing. This review broadly divides microfiber-based temperature sensors into two categories: resonant and non-resonant microfiber sensors. While the former includes microfiber loop, knot and coil resonators, the latter comprises sensors based on functionally coated/doped microfibers, microfiber couplers, optical gratings and interferometers. In the conclusions, a summary of reported performances is presented.

show abstract

“…It has been shown [15] that it is possible to construct a 2-in. guide with the necessary accuracy using a metal pipe specially drawn to obtain tolerances about 50 times smaller than required here, i.e., of the order of 0.1 mil.…”

Section: Fig 2a a Schematic Diagram Of A Circular Waveguide Using Pmentioning

confidence: 99%

Economic Feasibility of Microwave Power Transmission in Circular Waveguide

Dunn¹,

Loewenstern²

1968

Microwave Power Engineering

View full text Add to dashboard Cite

Transmission deviations in waveguide due to mode conversion: theory and experiment

Cited by 14 publications

References 4 publications

Microwave System Development for Wireless Communications Inside Oil and Gas Well Pipelines

Microwave System Development for Wireless Communications Inside Oil and Gas Well Pipelines

A Review of Microfiber-Based Temperature Sensors

Economic Feasibility of Microwave Power Transmission in Circular Waveguide

Contact Info

Product

Resources

About