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انتشار امواج الکترومغناطیسی در یک موج برهم محور رسانای الکترومغناطیسی کامل حاوی کایروپلاسما | ||
| الکترومغناطیس کاربردی | ||
| مقاله 9، دوره 13، شماره 1 - شماره پیاپی 30، شهریور 1404، صفحه 111-118 اصل مقاله (1.19 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| مقصود آقاجانی براگوری1؛ عباس عبدلی آرانی* 2 | ||
| 1دانشجوی دکتری،دانشگاه کاشان، کاشان،ایران | ||
| 2دانشیار،دانشگاه کاشان، کاشان،ایران | ||
| چکیده | ||
| در این مقاله، انتشار امواج الکترومغناطیسی در یک موجبر هممحور شامل هسته و پوستهی رسانای الکترومغناطیسی کامل که حاوی کایروپلاسما میباشد، مورد بررسی قرار می گیرد. مؤلفههای میدانهای الکترومغناطیسی بهصورت تحلیلی محاسبه میشوند. رابطهی پاشندگیِ مدهای هیبریدی با درنظرگرفتن شرایط مرزی مناسب محاسبه میشود و رفتار آن برحسب پارامترهای مختلف و برای مدهای مختلف، بهصورت عددی با رسم نمودار، موردمطالعه قرار میگیرد. رفتار چگالی شار توان بهصورت عددی بررسی میشود. تأثیر پارامترهای کایرالیتی، پذیرفتاری رسانایی الکترومغناطیسی کامل و شعاع داخلی و خارجی موجبر هممحور مذکور بر روی عدد موج بررسی میشوند. نشان داده میشود که عدد موج و بسامد قطع با تغییر پارامترهای مختلف تغییر میکند. | ||
| کلیدواژهها | ||
| کایروپلاسما؛ موجبر هم محور؛ رسانای الکترومغناطیسی کامل؛ شار توان الکترومغناطیسی | ||
| عنوان مقاله [English] | ||
| Electromagnetic waves propagation in a perfect electromagnetic conductor coaxial waveguide containing chiro plasma | ||
| نویسندگان [English] | ||
| Maghsoud Aghajani Baragoori1؛ Abbas Abdoli Arani2 | ||
| 1PhD Student, University of Kashan, Kashan, Iran | ||
| 2Associate Professor, University of Kashan, Kashan, Iran | ||
| چکیده [English] | ||
| In this paper, the propagation of electromagnetic waves in a coaxial waveguide consisting of a core and a shell of a perfect electromagnetic conductor containing a chiro plasma is investigated. The components of the electromagnetic fields are calculated analytically. The dispersion relation of the hybrid modes is calculated by considering appropriate boundary conditions and its behavior is studied numerically by plotting the figure in terms of different parameters and for different modes. The behavior of the power flux density is investigated numerically. The effect of the chirality parameters, the perfect electromagnetic conductor admittance parameter and the inner and outer radii of the considered coaxial waveguide on the wave number are investigated. It is shown that the wave number and the cutoff frequency change with the change of various parameters. | ||
| کلیدواژهها [English] | ||
| Chiroplasma, Coaxial waveguide, Perfect electromagnetic conductor, Electromagnetic power flux | ||
| مراجع | ||
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Choudhury, “Dispersion characteristics of optical fibers under PEMC twists,” Journal of Electromagnetic Waves and Applications, vol. 28, no. 17, pp. 2124–2134, Nov. 2014, doi: 10.1080/09205071.2014.971974. [9] A. Hussain and Q. A. Naqvi, “PERFECT ELECTROMAGNETIC CONDUCTOR (PEMC) AND FRACTIONAL WAVEGUIDE,” Electromagnetic Waves, vol. 73, pp. 61–69, Jan. 2007, doi: 10.2528/pier07032401. [10]A. Ghaffar and M. a. S. Alkanhal, “Power flux distribution in chiroplasma‐filled perfect electromagnetic conductor circular waveguides,” Radio Science, vol. 51, no. 3, pp. 231–240, Mar. 2016, doi: 10.1002/2015rs005736. [11]I. V. Lindell and A. H. Sihvola, “The PEMC resonator,” Journal of Electromagnetic Waves and Applications, vol. 20, no. 7, pp. 849–859, Jan. 2006, doi: 10.1163/156939306776149824. [12]I. V. Lindell and A. H. Sihvola, “Losses in the PEMC boundary,” IEEE Transactions on Antennas and Propagation, vol. 54, no. 9, pp. 2553–2558, Sep. 2006, doi: 10.1109/tap.2006.880740. [13]J. R. Sohn, K. Y. Kim, H.-S. Tae, and H. J. Lee, “COMPARATIVE STUDY ON VARIOUS ARTFICIAL MAGNETIC CONDUCTORS FOR LOW-PROFILE ANTENNA,” Electromagnetic Waves, vol. 61, pp. 27–37, Jan. 2006, doi: 10.2528/pier06011701. [14]A. Ghaffar and M. A. S. Alkanhal, “Propagation through chiroplasma waveguide using perfect magnetic conductor boundary conditions,” Canadian Journal of Physics, vol. 93, no. 12, pp. 1460–1465, Jun. 2015, doi: 10.1139/cjp-2015-0050. [15]M. A. Baqir and P. K. Choudhury, “On the energy flux through a uniaxial chiral metamaterial made circular waveguide under PMC boundary,” Journal of Electromagnetic Waves and Applications, vol. 26, no. 16, pp. 2165–2175, Sep. 2012, doi: 10.1080/09205071.2012.729299. [16]M. X. Gao, B. Guo, L. Peng, and X. Cai, “Dispersion relations for electromagnetic wave propagation in chiral plasmas,” Physics of Plasmas, vol. 21, no. 11, Nov. 2014, doi: 10.1063/1.4901349. [17]B. Guo, “Chirality-induced negative refraction in magnetized plasma,” Physics of Plasmas, vol. 20, no. 9, Sep. 2013, doi: 10.1063/1.4821981. [18]J. Gong, “Electromagnetic wave propagation in a chiroplasma-filled waveguide,” Journal of Plasma Physics, vol. 62, no. 1, pp. 87–94, Jul. 1999, doi: 10.1017/s0022377899007692. [19]M. Alizadehfar, Z. Rahmani,A. Abdoli Arani,”Excitation and amplification of hybrid modes in circular-elliptic combined plasma waveguides including relativistic electron beam”, Journal of Applied Electromagnetism, vol.11, Issue 1, pp. 61-73, 2023.[In Persian], 20.1001.1.26455153.1402.11.1.7.8 [20]B. Abrahimi, A. Abdoli Arani,”The effect of a strong uniform axial magnetic field on the TE and TM modes fields and the injected electron dynamics in a plasma waveguide with Piet Hein cross section”, Journal of Applied Electromagnetism, vol.10, Issue 2, pp. 125-138, 2022.[In Persian] dor/20.1001.1.26455153.1401.10.2.11.7 [21]Somayeh Pirizad Hejrandoost, Abbas Abdoli Arani , Zeinab Rahmani Nooshabadi, (2023). Calculation of radar cross section of the magnetized plasma antenna with elliptical cross-section, Journal of “Radar”, 10(1), 0-0. magiran.com/p2697259 .[In Persian][22]Golnaz Khojeh, Abbas Abdoli Arani , (2021). Calculation of the resonance frequency of a toroidal plasma, Journal of Applied Electromagnetic, 9(2), 63-70. magiran.com/p2321901.[In Persian] https://dor.isc.ac/dor/20.1001.1.26455153.1400.9.2.8.7 | ||
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آمار تعداد مشاهده مقاله: 919 تعداد دریافت فایل اصل مقاله: 109 |
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