Radio wave propagation characteristics in lossy circular waveguides such as tunnels, mine shafts, and boreholes
We present the characteristics of radio propagation in a circular lossy waveguide whose walls are composed of earth soil materials with frequency-dependent properties. This type of structure is used to represent a radio link for an underground wireless communication channel such as a tunnel, mine sh...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2000-09, Vol.48 (9), p.1354-1366 |
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| container_end_page | 1366 |
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| container_issue | 9 |
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| container_title | IEEE transactions on antennas and propagation |
| container_volume | 48 |
| creator | Holloway, C.L. Hill, D.A. Dalke, R.A. Hufford, G.A. |
| description | We present the characteristics of radio propagation in a circular lossy waveguide whose walls are composed of earth soil materials with frequency-dependent properties. This type of structure is used to represent a radio link for an underground wireless communication channel such as a tunnel, mine shaft, or borehole. We present calculated results of the attenuation constant for various propagation modes in the soil waveguide structure for various soil constituents and moisture levels. Transverse field plots of the various modes for different soil types are also presented. Finally, it is shown that for small |k/sub 2/a| (where k/sub 2/ is the wavenumber in the soil and a is the radius of the waveguide) some modes in the waveguide disappear and a discussion of this behavior and how it relates to excitation problems is given. |
| doi_str_mv | 10.1109/8.898768 |
| format | Article |
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This type of structure is used to represent a radio link for an underground wireless communication channel such as a tunnel, mine shaft, or borehole. We present calculated results of the attenuation constant for various propagation modes in the soil waveguide structure for various soil constituents and moisture levels. Transverse field plots of the various modes for different soil types are also presented. Finally, it is shown that for small |k/sub 2/a| (where k/sub 2/ is the wavenumber in the soil and a is the radius of the waveguide) some modes in the waveguide disappear and a discussion of this behavior and how it relates to excitation problems is given.</description><identifier>ISSN: 0018-926X</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/8.898768</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Attenuation ; Earth ; Frequency ; Moisture ; Propagation losses ; Radio link ; Radio propagation ; Shafts ; Soil ; Wireless communication</subject><ispartof>IEEE transactions on antennas and propagation, 2000-09, Vol.48 (9), p.1354-1366</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2000</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-3ad9b6c6b7b57e6a612939ae4891a4e8e078f29d428d3d9856a78f8bfac9339c3</citedby><cites>FETCH-LOGICAL-c334t-3ad9b6c6b7b57e6a612939ae4891a4e8e078f29d428d3d9856a78f8bfac9339c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/898768$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/898768$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Holloway, C.L.</creatorcontrib><creatorcontrib>Hill, D.A.</creatorcontrib><creatorcontrib>Dalke, R.A.</creatorcontrib><creatorcontrib>Hufford, G.A.</creatorcontrib><title>Radio wave propagation characteristics in lossy circular waveguides such as tunnels, mine shafts, and boreholes</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>We present the characteristics of radio propagation in a circular lossy waveguide whose walls are composed of earth soil materials with frequency-dependent properties. This type of structure is used to represent a radio link for an underground wireless communication channel such as a tunnel, mine shaft, or borehole. We present calculated results of the attenuation constant for various propagation modes in the soil waveguide structure for various soil constituents and moisture levels. Transverse field plots of the various modes for different soil types are also presented. Finally, it is shown that for small |k/sub 2/a| (where k/sub 2/ is the wavenumber in the soil and a is the radius of the waveguide) some modes in the waveguide disappear and a discussion of this behavior and how it relates to excitation problems is given.</description><subject>Attenuation</subject><subject>Earth</subject><subject>Frequency</subject><subject>Moisture</subject><subject>Propagation losses</subject><subject>Radio link</subject><subject>Radio propagation</subject><subject>Shafts</subject><subject>Soil</subject><subject>Wireless communication</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp90UtLxDAQAOAgCq6r4NlT8KAe7No0aTs5yuILBEEUvJVpOnUj3WZNWsV_b3TFgwdPYTLfDMwMY_sinQmR6jOYgYaygA02EXkOSZZlYpNN0lRAorPiaZvthPASQwVKTZi7x8Y6_o5vxFferfAZB-t6bhbo0QzkbRisCdz2vHMhfHBjvRk79N8lz6NtKPAwmgXHwIex76kLp3xpe-Jhge0QA-wbXjtPC9dR2GVbLXaB9n7eKXu8vHiYXye3d1c38_PbxEiphkRio-vCFHVZ5yUVWIhMS42kQAtUBJSW0Ga6URk0stGQFxg_oG7RaCm1kVN2vO4bh3odKQzV0gZDXYc9uTFUACCELPMiyqN_ZQa5krlMIzz8A1_c6Ps4RaWF1jovpYroZI2Mj-vy1FYrb5foPyqRVl8HqqBaHyjSgzW1RPTLfpKf3PyMHA</recordid><startdate>20000901</startdate><enddate>20000901</enddate><creator>Holloway, C.L.</creator><creator>Hill, D.A.</creator><creator>Dalke, R.A.</creator><creator>Hufford, G.A.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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This type of structure is used to represent a radio link for an underground wireless communication channel such as a tunnel, mine shaft, or borehole. We present calculated results of the attenuation constant for various propagation modes in the soil waveguide structure for various soil constituents and moisture levels. Transverse field plots of the various modes for different soil types are also presented. Finally, it is shown that for small |k/sub 2/a| (where k/sub 2/ is the wavenumber in the soil and a is the radius of the waveguide) some modes in the waveguide disappear and a discussion of this behavior and how it relates to excitation problems is given.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/8.898768</doi><tpages>13</tpages></addata></record> |
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| subjects | Attenuation Earth Frequency Moisture Propagation losses Radio link Radio propagation Shafts Soil Wireless communication |
| title | Radio wave propagation characteristics in lossy circular waveguides such as tunnels, mine shafts, and boreholes |
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