Relevant bibliographies by topics / Coaxial monopoles

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Coaxial monopoles'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Coaxial monopoles"

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Baker-Jarvis, J., and R. Inguva. "Dielectric Heating of Oil Shales By Monopoles and Modified Coaxial Applicators." Journal of Microwave Power and Electromagnetic Energy 23, no. 3 (January 1988): 160–70. http://dx.doi.org/10.1080/08327823.1988.11688051.

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Woo, Myung Kyun, Lance DelaBarre, Matt Thomas Waks, Young Woo Park, Russell Luke Lagore, Steve Jungst, Yigitcan Eryaman, Se-Hong Oh, Kamil Ugurbil, and Gregor Adriany. "Evaluation of 8-Channel Radiative Antenna Arrays for Human Head Imaging at 10.5 Tesla." Sensors 21, no. 18 (September 8, 2021): 6000. http://dx.doi.org/10.3390/s21186000.

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For human head magnetic resonance imaging at 10.5 tesla (T), we built an 8-channel transceiver dipole antenna array and evaluated the influence of coaxial feed cables. The influence of coaxial feed cables was evaluated in simulation and compared against a physically constructed array in terms of transmit magnetic field (B1+) and specific absorption rate (SAR) efficiency. A substantial drop (23.1% in simulation and 20.7% in experiment) in B1+ efficiency was observed with a tight coaxial feed cable setup. For the investigation of the feed location, the center-fed dipole antenna array was compared to two 8-channel end-fed arrays: monopole and sleeve antenna arrays. The simulation results with a phantom indicate that these arrays achieved ~24% higher SAR efficiency compared to the dipole antenna array. For a human head model, we observed 30.8% lower SAR efficiency with the 8-channel monopole antenna array compared to the phantom. Importantly, our simulation with the human model indicates that the sleeve antenna arrays can achieve 23.8% and 21% higher SAR efficiency compared to the dipole and monopole antenna arrays, respectively. Finally, we obtained high-resolution human cadaver images at 10.5 T with the 8-channel sleeve antenna array.
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Park, Mi Y., and Hyo J. Eom. "Coaxially fed monopoles in shorted waveguides." Microwave and Optical Technology Letters 49, no. 12 (2007): 3145–48. http://dx.doi.org/10.1002/mop.22959.

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Trintinalia, Luiz C. "Simple Excitation Model for Coaxial Driven Monopole Antennas." IEEE Transactions on Antennas and Propagation 58, no. 6 (June 2010): 1907–12. http://dx.doi.org/10.1109/tap.2010.2046872.

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Nasibullaeva, E. Sh. "Numerical simulation of acoustic scattering from coaxial sound-penetrable spheres." Multiphase Systems 14, no. 2 (2019): 115–24. http://dx.doi.org/10.21662/mfs2019.2.016.

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This paper presents a generalisation of the mathematical model and numerical study of the acoustic scattering problem from multiple spheres in the case of spheres through which the wave passes and whose centers are located on the same axis (the case of sound-penetrable and coaxial spheres) under the action of spherical waves from a monopoly radiation source arbitrarily located in space. When solving the Helmholtz equations, a numerical technique based on the fast multipole method has been adapted for this task, which allows one to achieve high accuracy of the results obtained with minimal computer time. Comparison of the different approaches to truncation infinite series in the expansion showed the following: the result with a good degree of accuracy by a single calculation gives approach based on the truncation of all the rows with a fixed number in each expansion, and the result with a certain degree of accuracy gives an approach based on comparing two consecutive values of the sum of the series. A numerical parametric analysis of the pressure distribution inside and outside the spheres is carried out for various values of their radii, physical characteristics of the external and internal media, the number of spheres, the distances between the centers of the spheres, the frequency of exposure and the location of the monopole radiation source. It is shown that at certain values of the parameters, the appearance of zones of decrease or increase in pressure behind sound-penetrable spheres is possible. The obtained results will further allow to carry out test calculations to verify the general numerical algorithm for the case of a multitude of spheres arbitrarily located in space.
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Chand, Prithish, Amar Dattatray Chaudhari, Rahul Keley, and Kamala Prasan Ray. "Low profile Compact Printed Monopole Antenna for Satellite based AIS Application." Defence Science Journal 70, no. 2 (March 9, 2020): 175–82. http://dx.doi.org/10.14429/dsj.70.14725.

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In this paper, a simple, low profile compact printed monopole antenna has been proposed for satellite based automatic identification system (SB-AIS). The design consists of a printed monopole, which has been meandered to achieve optimum size reduction. The detailed investigation in terms of bending of the arms of monopole, width of the patch and dimensions of the ground plane on the resonance frequency and input impedance is presented. The antenna is matched to a typical 50 Ω coaxial line without any requirement of external matching structures. The prototype of the antenna is fabricated and tested at an operating frequency of 161 MHz for SB-AIS, with compact size of 44.5 . 17 cm2. The measured results show that the antenna has a bandwidth of 15 MHz (9.3 per cent), gain of 1.87 dBi and beam-width of 82° in the elevation and omnidirectional in azimuthal plane. The size reduction is 53.8 per cent as compared to a linear printed monopole antenna.
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Kaushik, V. R., and R. K. Gangwar. "A Novel Four Element Low Profile and Compact Conical Dielectric Resonator Antenna for Wideband Applications." Advanced Electromagnetics 7, no. 2 (February 28, 2018): 1–4. http://dx.doi.org/10.7716/aem.v7i2.650.

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In this paper, a four element Conical Dielectric Resonator Antenna fed through coaxial probe is presented. This Low Profile and compact novel Antenna is designed for Wideband application and its input and radiation characteristics determined through the Ansoft High Frequency Structure Simulator (HFSS) Software. The proposed antenna provides wide Bandwidth (45%) and high average gain (5.15 dBi) with Monopole type Radiation Pattern.
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Tsukiji, T., Y. Kumon, and M. Yamasaki. "Double-folded monopole antenna using parallel line or coaxial cable." IEE Proceedings - Microwaves, Antennas and Propagation 149, no. 1 (February 1, 2002): 17–22. http://dx.doi.org/10.1049/ip-map:20020181.

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Pan, Chien-Yuan, Jhih-Hao Duan, and Jen-Yea Jan. "COPLANAR PRINTED MONOPOLE ANTENNA USING COAXIAL FEEDLINE FOR DTV APPLICATION." Progress In Electromagnetics Research Letters 34 (2012): 21–29. http://dx.doi.org/10.2528/pierl12071301.

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FUKUSHIMA, Takatsugu, Naobumi MICHISHITA, Hisashi MORISHITA, and Naoya FUJIMOTO. "Coaxially Fed Antenna Composed of Monopole and Choke Structure Using Two Different Configurations of Composite Right/Left-Handed Coaxial Lines." IEICE Transactions on Communications E102.B, no. 2 (February 1, 2019): 205–15. http://dx.doi.org/10.1587/transcom.2018isp0012.

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Dissertations / Theses on the topic "Coaxial monopoles"

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Kwinana, Phumezo M. "A T-resonator technique for aperture plane admittance parameters of electrically short RF monopoles." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/1501.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006.
This thesis focuses on the coaxial-microstrip T-resonator measurement technique to determine the aperture plane capacitance and radiation resistance of electrically short monopoles above a finite ground plane at Radio Frequencies. The determination of these impedance parameters is of interest as they are needed in the Thévenin equivalent circuit of the monopole to establish the relationship between the monopole, the electromagnetic field within which it is immersed, and its surrounding medium properties. Electromagnetically short monopoles are used in various applications such as in permittivity and biomedical measurement techniques and near-field metrology. The coaxial-microstrip device allows the measurement of transmission coefficient nulls when connected to the network analyser. By measuring the frequency shift in transmission null points and analysing the results, the capacitance of short monopoles of various lengths can be obtained. The radiation resistance of the monopole can also be determined by comparing the depth of transmission coefficient nulls points at various resonant frequencies. Monopoles ranging from flush-mounted to various sizes of protruding centre conductors, both bare and insulated, are investigated in the frequencies ranging from 45 MHz to 3 GHz. The experimental results compare well with FEKO numerical predictions at the ranges where this technique is applicable. The technique is however not applicable near and beyond the resonant frequency of the monopole where it is considered to be electrically long. Measurements to obtain monopole impedance parameters were conducted by connecting the device to the HP 8510C Network Analyser. To enhance accuracy, the Network Analyser was calibrated using a high quality calibration kit with precisely defined standards. The technique used was found to accurately yield capacitances in the range of 0.0211 to 1 pF and radiation resistances in the range of 0.9245 to 12.1 Ohms. These results were obtained for monopoles of length 0.0062 < h/l < 0.24. Results from literature, viz. W.R Scott, R.W.P. King and L.J. Cooper, show radiation resistance in the ranges: 2.5 to 35 Ohms (0.079 < h/l < 0.22), 1.26 to 74.08 Ohms (0.026 < h/l < 0.28) and 5.59 to 74.98 Ohms (0.1 < 0.28) for electrically short monopoles. The results of this work are compared with those in the literature and show variations of less than 6%. A technique capable of accurately measuring capacitance and radiation resistance of the monopole at various lengths of protruding centre conductor has been developed. The capacitance for a flush probe compares very well (agreement is less than 6%) when compared with those obtained by the previous researchers. The technique is capable of yielding accurate results radio frequencies in the challenging low radiation resistance range around 1 Ohm.
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Scott, Waymond R. Jr. "Dielectric spectroscopy using shielded open-circuited coaxial lines and monopole antennas of general length." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/13726.

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Bartoš, Adam. "Anténní systém pro bezdrátové mikrofony." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376997.

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Master's thesis deals with the design of an antenna system for wireless sound transmission used mainly in professional sound reinforcement. The introductory part deals generally with wireless microphones, frequency bands used and proven antenna types. Next, this work deals with signal distribution that is realized using the antenna splitter. The antenna parts is focused on easy production and real usage, therefore were selected antennas with appropriate properties suitable for small series production. This thesis includes simulation of each device, their real construction design and measurements of built prototypes and final products. All three produced devices – the rack splitter, /4 antenna and Helix antenna are fully working, achieve good parameters and are ready for further manufacturing and easy modifications in case of frequency band change requirement. The conclusion includes an overall assessment of the results achieved.
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Conference papers on the topic "Coaxial monopoles"

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Morrow, I. L., G. P. Dingley, W. G. Whittow, and A. Cooper. "Wideband blade monopole antenna with sleeved coaxial feed." In Propagation Conference (LAPC). IEEE, 2009. http://dx.doi.org/10.1109/lapc.2009.5352412.

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Khruslov, Maksym, and Vadim Pazynin. "X-band coaxial monopole antenna with an additional screen." In 2006 International Conference on Microwaves, Radar & Wireless Communications. IEEE, 2006. http://dx.doi.org/10.1109/mikon.2006.4345291.

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Zhang, Zhaocheng, Chenjiang Guo, Jun Ding, and Yi Su. "A novel printed UWB monopole antenna fed by coaxial cable." In 2010 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2010. http://dx.doi.org/10.1109/icmmt.2010.5525299.

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Hindustani, Rahul Kumar, Sumitra Dey, and Susanta Kumar Parui. "Coaxial fed two element CDRA-monopole hybrid with conformal strips." In 2015 6th International Conference on Computers and Devices for Communication (CODEC). IEEE, 2015. http://dx.doi.org/10.1109/codec.2015.7893180.

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Jia-Jun Ma, Xiang-Yu Cao, and Yue Sheng Zeng. "A simple FDTD model for monopole antennas fed by coaxial transmission line." In 2008 International Conference On Microwave and Millimeter Wave Technology. IEEE, 2008. http://dx.doi.org/10.1109/icmmt.2008.4540500.

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Saou-Wen Su and Fa-Shian Chang. "Compact coaxial-line-fed printed monopole antenna for lower-band ultrawideband applications." In amp; USNC/URSI National Radio Science Meeting. IEEE, 2009. http://dx.doi.org/10.1109/aps.2009.5172355.

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Ramirez-Guzman, T. J., C. J. Trujillo-Romero, A. Vera-Hernandez, and L. Leija. "Micro-coaxial Monopole Antenna to Treat Bone Cancer: Design and Preliminary Experimentation." In 2019 Global Medical Engineering Physics Exchanges/ Pan American Health Care Exchanges (GMEPE/PAHCE). IEEE, 2019. http://dx.doi.org/10.1109/gmepe-pahce.2019.8717353.

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Constantin, Andreea, Razvan D. Tamas, and Alexandru Brumaru. "Radiation from Common Mode Currents on Coaxial Lines Feeding Small Monopole Antennas." In 2021 Telecoms Conference (ConfTELE). IEEE, 2021. http://dx.doi.org/10.1109/conftele50222.2021.9435449.

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Santra, Golak, and Bratin Ghosh. "A coaxial fed solid half conical monopole antenna for multiple wireless and Satellite Communications." In 2016 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET). IEEE, 2016. http://dx.doi.org/10.1109/icramet.2016.7849592.

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Lin, Chenbin, Hiroyuki Arai, and Tamotu Suda. "A Small Monopole Antenna Based on Composite Right/Left-Handed Transmission Line by Coaxial Structure." In 2008 International Workshop on Antenna Technology "Small Antennas and Novel Metamaterials" (iWAT). IEEE, 2008. http://dx.doi.org/10.1109/iwat.2008.4511368.

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