Relevant bibliographies by topics / Side lobe radiation

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Side lobe radiation'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Side lobe radiation"

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Ifeoma, B. Asianuba. "Side Lobe Reduction in Linear Array Antenna using Numerical Computation Approach." European Journal of Advances in Engineering and Technology 6, no. 4 (2019): 29–35. https://doi.org/10.5281/zenodo.10687581.

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<strong>ABSTRACT</strong> Large amount of energy is saved when a transmitting antenna propagates its field radiations painstakingly in the required direction of propagation. For this reason, reduction in side lobe radiation is essential to avoid degrading the total power and efficiency of the radiating structure. In this paper, a numerical approach is adopted other than the well known stochastic approach to reduce side lobe radiations in linear array antennas. This choice is as a result of the short design cycle of the numerical solution for antenna field problems, full exploration of design s
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Mittal, Vikas, Kanta Prasad Sharma, Narmadha Thangarasu, Udandarao Sarat, Ahmad O. Hourani, and Rohit Salgotra. "Synthesis of Circular Antenna Arrays for Achieving Lower Side Lobe Level and Higher Directivity Using Hybrid Optimization Algorithm." Algorithms 17, no. 6 (2024): 256. http://dx.doi.org/10.3390/a17060256.

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Circular antenna arrays (CAAs) find extensive utility in a range of cutting-edge communication applications such as 5G networks, the Internet of Things (IoT), and advanced beamforming technologies. In the realm of antenna design, the side lobes levels (SLL) in the radiation pattern hold significant importance within communication systems. This is primarily due to its role in mitigating signal interference across the entire radiation pattern’s side lobes. In order to suppress the subsidiary lobe, achieve the required primary lobe orientation, and improve directivity, an optimization problem is
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Bolotina, Irina O., H. Michael Kroening, K. G. Kvasnikov, Dmitriy A. Sednev, and Olga V. Sumtsova. "Acoustic Field Simulation of an Antenna Array at Scanning by the SPA Method for Modern Ultrasonic Testing Technologies." Advanced Materials Research 1040 (September 2014): 959–64. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.959.

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The results of numerical simulation of an antenna array radiation pattern in impulse mode by the method of sampling phased array signal processing are represented in this paper. The studies of array parameters impact (the number of elements and the distance between them) on its penetrometer characteristics are discussed. It is established that the change of the distance among array elements leads to narrowing of the main lobe of the radiation pattern as well as to shifting of the side lobes nearer to the main one. Meanwhile, the increase in the number of elements in the array leads to narrowin
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Milijic, Marija, Aleksandar Nesic, and Bratislav Milovanovic. "Definition of the border between the far and near field zone for printed antenna arrays with high side lobe suppression." Serbian Journal of Electrical Engineering 10, no. 1 (2013): 113–24. http://dx.doi.org/10.2298/sjee1301113m.

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The paper defines the border between the far and near field zone of printed antenna arrays. The conventional definition has a limited application in side lobe suppression measurements, especially in the case of high side lobe suppression. The paper particularly details the printed antenna array with 8 radiation elements. Its symmetrical tapered feed network with Chebyshev distribution enables side lobe suppression greater than -44 dB in the E-plane. In addition, the influence of tolerances in the standard photolithographic process has been investigated. The expected tolerances in the standard
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Mordachev, V. I., and D. A. Tsyanenka. "Influence of Spatial Selectivity of Radiation of Mobile Communication Base Stations on the Level of Electromagnetic Background Introduced by them." Doklady BGUIR 20, no. 7 (2022): 56–64. http://dx.doi.org/10.35596/1729-7648-2022-20-7-56-64.

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Radio frequency electromagnetic radiation from base stations is the main source of electromagnetic background generated by mobile (cellular) communication systems in residential areas; its intensity makes a significant contribution to the level of electromagnetic pollution of the habitat and determines the level of electromagnetic safety of the population. The previously proposed technique for estimating the average intensity of this background, based on the analysis of the territorial intensity of mobile traffic, takes into account the spatial selectivity of base station radiation in a simpli
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Palitsin, Alexey, Mikhail Goykhman, Alexander Gromov, and Nikolay Kovalev. "Directivity patterns features of antenna systems in regimes of ultra-short microwave pulses radiation." ITM Web of Conferences 30 (2019): 05010. http://dx.doi.org/10.1051/itmconf/20193005010.

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Directivity patters of some antenna systems depend on duration of radiated microwave pulses. It is shown that for large enough twodimensional systems the shortening of pulses leads to suppression of side lobe radiation. We propose to use a novel for two-dimensional antenna systems parameter - a correlation length which is useful for estimation of pulse shortening influence on antenna pattern. Correlation length depends both on the pulse duration and direction of radiation. The effect of side lobes suppression can be used for estimation of pulse duration.
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Milijic, Marija, Aleksandar Nesic, and Bratislav Milovanovic. "An investigation of side lobe suppression in integrated printed antenna structures with 3D reflectors." Facta universitatis - series: Electronics and Energetics 30, no. 3 (2017): 391–402. http://dx.doi.org/10.2298/fuee1703391m.

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The paper discusses the problem of side lobe suppression in the radiation pattern of printed antenna arrays with different 3D reflector surfaces. The antenna array of eight symmetrical pentagonal dipoles with corner reflectors of various angles is examined. All investigated antenna arrays are fed by the same feeding network of impedance transformers enabling necessary amplitude distribution. Considering the different reflector surfaces, the influence of parasitic radiation from feeding network on side lobe suppression is studied to prevent the reception of unwanted noise and to increase a gain
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Afacan, Erkan, and Erdem Yazgan. "The effect of loading Gregorian antennas on side-lobe levels." Canadian Journal of Physics 74, no. 9-10 (1996): 685–91. http://dx.doi.org/10.1139/p96-098.

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E- and H -plane radiation patterns of focus-fed, axially symmetric Gregorian antennas are analyzed using the generalized method of the geometrical theory of diffraction. Only the rim of the main reflector was loaded, in a smoothly tapered manner, but the whole surface of the subreflector was loaded. Loads are defined in terms of surface impedances. With the help of this analysis, the effect of the smoothly tapered rim loading on the far-field radiation patterns of Gregorian antennas can be studied in detail.
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Hamid, M., and S. Choudhry. "Antenna Radiation Enhancement By Increasing Main To Side Lobe Ratio." Journal of Electromagnetic Waves and Applications 13, no. 3 (1999): 413–21. http://dx.doi.org/10.1163/156939399x01005.

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Figueredo, Raimundo Eider, Alexandre Maniçoba De Oliveira, and João Francisco Justo. "Antipodal Vivaldi Antenna with Star Trek insignia-based side slot edge for ultra-wideband applications." Journal of Mechatronics Engineering 6, no. 1 (2023): 1–9. http://dx.doi.org/10.21439/jme.v6i1.112.

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This article presents a Vivaldi Antipodal Antenna (AVA) with lens and radiating side cavities based on the Star Trek insignia, called Star Trek Side Edge Radiation (STSER-AVA). The objective was to improve parameters to make the radiation of the proposed antenna more directive. To this aim, the development is focused on reducing the squint of the central radiation beam and the side lobe level (SLL), as well as increasing the gain compared to a Conventional AVA. To achieve the objective, using an optimized design. The proposed antenna with or without a lens reached the target with a squint of -
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Dissertations / Theses on the topic "Side lobe radiation"

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Nagesh, S. R. "Synthesis of Arbitrary Antenna Arrays." Thesis, Indian Institute of Science, 1995. https://etd.iisc.ac.in/handle/2005/160.

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Design of antenna arrays for present day requirements has to take into account both mechanical and electrical aspects. Mechanical aspects demand the antennas to have low profile, non-protruding structures, structures compatible to aerodynamic require­ments and so on. Electrical aspects may introduce several constraints either due to. technical reasons or due to readability conditions in practice. Thus, arrays of modern requirements may not fall into the category of linear or planar arrays. Further, due to the nearby environment, the elements will generate complicated individual patterns. These
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Nagesh, S. R. "Synthesis of Arbitrary Antenna Arrays." Thesis, Indian Institute of Science, 1995. http://hdl.handle.net/2005/160.

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Design of antenna arrays for present day requirements has to take into account both mechanical and electrical aspects. Mechanical aspects demand the antennas to have low profile, non-protruding structures, structures compatible to aerodynamic require­ments and so on. Electrical aspects may introduce several constraints either due to. technical reasons or due to readability conditions in practice. Thus, arrays of modern requirements may not fall into the category of linear or planar arrays. Further, due to the nearby environment, the elements will generate complicated individual patterns. These
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Book chapters on the topic "Side lobe radiation"

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Okumura, Taiga, Noriko Yamaguchi, and Toshihiro Kogure. "Structure, Composition, and Physicochemical Properties of Radiocesium-Bearing Microparticles Emitted by the Fukushima Daiichi Nuclear Power Plant Accident." In Agricultural Implications of Fukushima Nuclear Accident (IV). Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9361-9_8.

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AbstractDuring the accident at TEPCO’s Fukushima Daiichi Nuclear Power Plant, radiocesium-bearing microparticles (CsMPs) were released from damaged reactors into the environment. These micron-sized spherical particles with high specific radioactivity have not been reported in previous nuclear accidents. Herein, the current understanding of the structure, composition, and physicochemical properties of CsMPs is summarized. Electron microscopy revealed that the CsMP matrix is composed of silicate glass containing Na, Cl, K, Fe, Zn, Rb, Sn, and Cs as major constituents. These elements are often in
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Taiel, Mazhar B., Nour H. Ismail, and Ashraf T. Ibrahim. "Several Optimization Methods to Optimize the Spacing Between the Elements of Ultrasound linear Phased Array to Produce a Radiation Pattern with Minimum Side Lobes Level (SSL), Null Placement Control and Treating Cancer Tumors in Biological Media." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89208-3_593.

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Rohaninezhad, Mohammadreza, Meysam Jalali Asdabadi, Changiz Ghobadi, and Javad Nourinia. "Mutual coupling in the antennas." In Free Space Optics Technologies in B5G and 6G Era - Recent Advances, New Perspectives and Applications [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005160.

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Mutual coupling refers to the intricate interaction among discrete antenna elements within an array, often causing interference and leading to the deterioration of critical performance parameters. This degradation includes reduced gain, increased side lobe levels, and distorted radiation patterns, significantly impacting the overall system’s capabilities and coverage. With the increasing demand for higher data rates and capacity in next-generation wireless communication systems, such as 5G and the emerging 6G, array antennas are essential for enabling beamforming and spatial multiplexing. Howe
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Acharya, Puja, M. D. Rahmatullah, and Chidananda Murthy. "The Role of Structural Innovation in the Emergence of Modernity and the Relationship between Media and Modernity." In 9th National Conference & Exhibition on Emerging and Innovative Trends in Engineering Technology (NCEEITET). IARS' Press Australia, 2023. https://doi.org/10.62431/cqj80k54.

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Antenna reconfiguration has been a standard process for a significant amount of time. During the 1930s, calibrated variable phase changers were utilized to steer the nulls of a two-element array in order to obstruct the direction in which the signal was arriving. At the beginning, Bruce and Beck stretched the wires of the rhombic antenna using a motor and some weights to achieve the desired size change. The lengths of the rhombus elements and the internal angles were modified by modifying the distance between the antenna's primary axis, and the beam was guided by modifying the shape of the rho
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K. C, Rajarajeshwari, Saravanakumar N, Poornima T, and Gokul Anand K. R. "ANTENNA TRENDS IN THz COMMUNICATION." In Futuristic Trends in Network & Communication Technologies Volume 3 Book 2. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bgnc2p10ch5.

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Terahertz range lies between microwave band (&lt;100GHz) to far Infra-Red band (&gt;10THz) range. The actual range of Terahertz is 0.3 to 3THz and the radiation occurs about 1millimeter, hence called as sub-millimetre band/wave which are usually short wavelengths. Normal antenna designs can be made as per our requirement, but coming to THz antenna the case is entirely different. It has to be designed, constructed, and fabricated with lot of limitations and constraints. They have many challenges related to high performance like high data rates (Tbps), proper spectrum allocation, high gain, high
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"18-FDG PET/CT in the diagnosis and treatment of drug- resistant epilepsy with autologous bone marrow mesenchymal stem cells (ABMMSC)." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.24.1.

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Purpose/Objective To investigate 18-FDG PET/CT in the diagnosis and treatment of drug-resistant epilepsy with AMCSC. Material/Methods The study included 34 patients with drug-resistant epilepsy and generalized seizures (main group) and 34 patients in the comparison group from 2011 to 2023. Main group patients received stem cell therapy, while in the comparison group, treatment was carried out only according to the current protocol. All of patients were assessed for brain bioelectrical activity, PET/CT, MRI, immune status, BDNF. The analysis consisted of comparing the PET data of each patient w
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"food was presented by McLaughlin and collaborators (29). Glover’s review (30) is less detailed but more recent. Dosimetry for food irradiation processing has reached a high level of perfec­ tion. Many standards for this purpose have been issued by the American Society for Testing and Materials (31,32). The role of dosimetry in good radiation processing practice is described in the Recommended International Code of Practice for the Operation of Irradiation Facilities Used for the Treatment of Foods (see Appendix II) and in a series of Codes of Good Irradiation Practice issued by ICGFI (International Consultative Group on Food Irradiation) (see Appendix III). With some food items, such as whole eggs (33) and ground com (34), it may be possible to use the food itself as a dose meter. This will be discussed in more detail in Chapter 5. As mentioned earlier, electron beams, on the one hand, and gamma rays and x-rays, on the other hand, differ greatly in their ability to penetrate matter. This has important consequences for the dose distribution in the irradiated medium. Since many foods consist mostly of water, the penetration of radiation in water is shown in Figure 14. When an electron beam penetrates an aqueous medium the dose somewhat below the surface is higher than at the surface. This is due to the formation of secondary electrons which, because of their lower energy, are more effectively absorbed than the primary electrons. Also, scattering causes some secondary electrons to escape from the surface in the direction opposite to that of the beam of primary electrons. Thus a 10-MeV electron beam giving a dose of 10 kGy at the surface will deposit about 12.5 kGy at 2 cm below the surface. As more and more primary electrons lose their energy by interacting with water molecules, the absorbed dose decreases with increasing depth and at about 5 cm the limit of penetration is reached. In contrast, the dose delivered by gamma rays decreases continuously. The rate of decrease is faster with 137Cs gamma radiation than with 60Co gamma radiation. With x-rays it depends on the energy of the x-ray-producing electrons. For practical purposes the penetration of 5-MeV x-rays is comparable to that of 60Co gamma rays. Two-sided irradiation permits processing of thicker packages with more uni­ form dose distribution, as indicated in Figure 15. If the density of the irradiated medium is less than that of water, e.g., in fatty foods or in dehydrated or porous foods, the depth of penetration is correspondingly greater. The 10-MeV electron beam, which barely reaches a depth of 5 cm in water, will reach approximately 10 cm at a density of 0.5g/cm3. From Figures 14 and 15 it is clear that an absolutely uniform dose distribution cannot be obtained, even if a material of uniform density is irradiated. If dose." In Safety of Irradiated Foods. CRC Press, 1995. http://dx.doi.org/10.1201/9781482273168-41.

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Conference papers on the topic "Side lobe radiation"

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Shifrin, Y. S. "Effect of the Current Fluctuations on the Side Lobe Radiation in Antennas." In EMC_1990_Wroclaw. IEEE, 1990. https://doi.org/10.23919/emc.1990.10833041.

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Wang, Longpan, Mengmeng Sun, Yuhua Chen, Xiaojun Wang, and Xudong Bai. "Wideband Radiation-Type Programmable Metasurface for Low Side-Lobe Beam Scanning." In 2024 IEEE International Conference on Computational Electromagnetics (ICCEM). IEEE, 2024. http://dx.doi.org/10.1109/iccem60619.2024.10559147.

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Murzaev, A. S., and V. N. Kovregin. "INTEGRATED INERTIAL-RADAR CHANNEL FOR ESTIMATING THE VELOCITY OF THE AIRCRAFT AGAINST THE BACKGROUND OF RADAR TASKS WHEN REVIEWING THE AIRSPACE." In Aerospace instrumentation and operational technologies. Saint Petersburg State University of Aerospace Instrumentation, 2021. http://dx.doi.org/10.31799/978-5-8088-1554-4-2021-2-56-59.

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method is proposed for determining the velocity of a multi-functional radar carrier aircraft with quasi-continuous radiation from reflected signals from sections of the earth’s surface formed by the side lobes of the radar antenna directivity diagram. Is the forecast range to the ground on the lateral petals; the prediction of the spectrum of the reflected signal on the side lobe; Doppler measurements of velocities in the directions of side lobes is determined by the speed of the aircraft, formed the data for further filtering.
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Gorobets, N. N., and N. P. Yeliseyeva. "Side lobe suppression of radiation of electric dipole above a plane screen in definite direction." In 1999 9th International Crimean Microwave Conference 'Microwave and Telecommunication Technology'. Conference Proceedings. IEEE, 1999. http://dx.doi.org/10.1109/crmico.1999.815207.

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Andreev, Mikhail V., Oleg O. Drobakhin, Alexander L. Makarov, and Vladyslav O. Sydoruk. "Reduction of the side-lobe level of the radiation pattern of the multielement linear radiator based on a trough waveguide." In 2017 XXIInd International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED). IEEE, 2017. http://dx.doi.org/10.1109/diped.2017.8100605.

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Mandal, S. K., Rowdra Ghatak, and G. K. Mahanti. "Minimization of side lobe level and side band radiation of a uniformly excited time modulated linear antenna array by using Artificial Bee Colony algorithm." In 2011 IEEE Symposium on Industrial Electronics and Applications (ISIEA 2011). IEEE, 2011. http://dx.doi.org/10.1109/isiea.2011.6108708.

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Welch, D. F., P. S. Cross, D. R. Scifres, W. Streifer, and R. D. Burnham. "Single Lobe "Y" Coupled Laser Diode Arrays." In Semiconductor Lasers. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/sla.1987.tha2.

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Many applications of laser diode arrays, such as optical recording and point-to-point communications, require a stable, near diffraction limited beam. Recently phased array lasers have been demonstrated in which the emitters are locked in-phase but the far field pattern is multi-lobed due to the relative emitter widths and spacing1,2. In this paper we present data on "Y" coupled laser arrays which include flared waveguide at the facet to enlarge the near field spot size of the individual emitters. The near field "fill factor" is greater than 80% resulting in a predominantly single lobe radiati
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Petrov, Vladimir V., Sergey A. Lapin, and Viktor Y. Chirkov. "First-order side lobes suppression for disc-shape radiator." In SPIE Proceedings, edited by Dmitry A. Zimnyakov. SPIE, 2004. http://dx.doi.org/10.1117/12.568568.

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Capolino, F., M. Graziani, S. Maci, F. Mioc, and R. Tiberio. "Radiation by a circular open ended waveguide including near field and far out side lobes." In 25th European Microwave Conference, 1995. IEEE, 1995. http://dx.doi.org/10.1109/euma.1995.336993.

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Kaniak, Georg, and Herbert Schweinzer. "Advanced ultrasound object detection in air by intensive use of side lobes of transducer radiation pattern." In 2008 IEEE Sensors. IEEE, 2008. http://dx.doi.org/10.1109/icsens.2008.4716631.

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