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Journal articles on the topic 'Conical antennas'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Wang, Wei, Xue Tian Wang, Ying Li, and Song Song. "Design of an Ultra-Wideband Four Arms Sinuous Antenna." Advanced Materials Research 981 (July 2014): 469–73. http://dx.doi.org/10.4028/www.scientific.net/amr.981.469.

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Due to the advantages of ultra-wideband, single caliber, symmetric pattern, full polarization, the sinuous antennas have gradually displaced the traditional spiral antennas in the Missile guider, reflector feed, wideband direction finding system. Based on the traditional planar sinuous antennas, this paper designed a novel 2-22 GHz 3D sinuous antenna in the conical form. Results show that the designed antenna showed high performance within 2-22 GHZ frequency band.

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2

Huang, W. N., Y. J. Cheng, and H. Deng. "Substrate Integrated Waveguide Leaky-Wave Antenna Conforming to Conical Shape Surface." International Journal of Antennas and Propagation 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/359670.

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A conical conformal leaky-wave antenna based on substrate integrated waveguide (SIW) technology is proposed and demonstrated in this paper. This antenna conforms to a conical shape surface with the angle of 40°. It has a narrow beam that scans from 80° to 97° with varying frequency (34 GHz~37 GHz). Both conformal and nonconformal antennas are fabricated through the standard PCB process. Their performances are compared within the desired frequency.

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3

N, Likith, Gayathri K M, Thusshara S, Maria Sanjeetha, and Thangadurai N. "Design & Analysis of S-Band Right Hand Circularly Polarized Conical Horn Antenna for NavIC Receiver." International Journal of Engineering & Technology 7, no. 3.12 (July 20, 2018): 512. http://dx.doi.org/10.14419/ijet.v7i3.12.16169.

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In satellite communication systems the horn antennas are being used widely due to its robustness and capable to operate at frequencies which are very high. Here, the right hand circular polarized conical horn antenna is designed for S-band NavIC receiver. The waveguides and conical horn antenna dimensions are designed by using standard formulas and after that they are given to a simulation tool for the S band frequency. The performance parameters like return loss, radiation pattern, gain and directivity are considered for further analysis. In the circular waveguide from the TE11 mode conical horn antenna is to be designed into high gain and a good VSWR.

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4

Hirose, Kazuhide, Kazuhiko Hata, and Hisamatsu Nakano. "Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam." International Journal of Antennas and Propagation 2020 (February 24, 2020): 1–7. http://dx.doi.org/10.1155/2020/2759312.

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Two types of modified crossed-wire antennas are investigated to enhance a circularly polarized (CP) wave bandwidth. The wire length of each antenna is increased twice as long as that of the original antenna. First, a bent-type antenna is analyzed using the method of moments. It is found that the CP wave bandwidth for a 3 dB axial ratio criterion is twice as wide as that of the original antenna. Next, a spiral-type antenna is analyzed. It is revealed that the antenna shows a CP wave bandwidth of 28%, which is wider than that of the original antenna by a factor of 3.5. The analysis results are validated by experimental work.

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5

Kawakami, Haruo, Gentei Sato, Takeshi Watanabe, and Ryoji Wakabayashi. "Circularly polarized conical beam antennas." Electronics and Communications in Japan (Part I: Communications) 78, no. 5 (May 1995): 66–80. http://dx.doi.org/10.1002/ecja.4410780507.

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6

Kong, Rong, Dong Lin Su, and Qiu Yuan Lv. "Analysis for Radiation Characteristics of Horn Antenna for Out of Band." Advanced Materials Research 383-390 (November 2011): 2935–40. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.2935.

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The idea of this paper roots in the electromagnetic compatibility design of the whole aircraft system, in which out of band characteristics of airborne antennas are of equal importance as their characteristics in band. The definition of antenna characteristics for out of band is interpreted. Horn antennas are the main research objects in this paper. In order to make characteristic of this type antenna for out of band have a general, this paper is special to select pyramidal horn antenna and conical horn antenna. The characterization framework of horn antennas radiation characteristics for out of band is established, and the theoretical expressions of their radiation characteristics for out of band are given. In ensuring better antenna characteristics in band, four horn antennas that are different types of sizes, different frequency band width are simulated and analyzed by using electromagnetic simulation software HFSS. It is meaningful to analyze radiation characteristics and summarize different features for various performance parameters of these horn antennas for in band and out of band. Focus on characteristics of the changes for the maximum gain, 3dB beam width parameters of horn antennas within the working frequency band and out of working band. The results show that: radiation characteristics of horn antenna are the law within the working frequency band and out of working band.

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7

Givati, O., and A. P. C. Fourie. "Analysis of skeletal wire conical antennas." IEEE Transactions on Antennas and Propagation 44, no. 6 (June 1996): 844–58. http://dx.doi.org/10.1109/8.509888.

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8

Gentili, G. B., M. Cerretelli, and L. Cecchi. "COATED CONICAL ANTENNAS FOR AUTOMOTIVE APPLICATION." Journal of Electromagnetic Waves and Applications 18, no. 1 (January 2004): 85–97. http://dx.doi.org/10.1163/156939304322749689.

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9

Hertel, Thorsten W., and Glenn S. Smith. "Analysis of conical log-periodic antennas." Microwave and Optical Technology Letters 36, no. 1 (December 13, 2002): 28–32. http://dx.doi.org/10.1002/mop.10661.

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10

Cong, Lin, Lixin Xu, Jianhua Li, Ting Wang, and Qi Han. "The conical conformal MEMS quasi-end-fire array antenna." Modern Physics Letters B 31, no. 07 (March 10, 2017): 1750115. http://dx.doi.org/10.1142/s0217984917501159.

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The microelectromechanical system (MEMS) quasi-end-fire array antenna based on a liquid crystal polymer (LCP) substrate is designed and fabricated in this paper. The maximum radiation direction of the antenna tends to the cone axis forming an angle less than 90[Formula: see text], which satisfies the proximity detection system applied at the forward target detection. Furthermore, the proposed antenna is fed at the ended side in order to save internal space. Moreover, the proposed antenna takes small covering area of the proximity detection system. The proposed antenna is fabricated by using the flexible MEMS process, and the measurement results agree well with the simulation results. This is the first time that a conical conformal array antenna is fabricated by the flexible MEMS process to realize the quasi-end-fire radiation. A pair of conformal MEMS array antennas resonates at 14.2 GHz with its mainlobes tending to the cone axis forming a 30[Formula: see text] angle and a 31[Formula: see text] angle separately, and the gains achieved are 1.82 dB in two directions, respectively. The proposed antenna meets the performance requirements for the proximity detection system which has vast application prospects.

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11

Pereira, Francisco Estêvão Simão, and Maurício Henrique Costa Dias. "On the Design of Conical Antennas for Broadband Impedance Matching Performance." International Journal of Antennas and Propagation 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/1691580.

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In the scope of broadband radiators, the biconical antenna, or its monopole conical counterpart, is long known to be a proper choice. One common form of such radiator, the spherically capped conical antenna (SCCA), has closed-form solution to its input impedance, from which the broadband performance potential is easily verified. Nonetheless, from the design perspective, apart from a few clues inferred from existing solutions, little is found to accurately guide the choice of the main geometrical parameters of the antenna that will enable it to comply with a set of imposed bandwidth requirements. This paper proposes a simple 10-step sequence to derive conical or biconical antenna design charts. These charts provide straightforward information on the geometrical limits within which the required antenna impedance matching broadband performance is achieved. The method is assessed for the SCCA and the open conical antenna (OCA) using theoretical and simulated estimates of the input impedance. A discussion on the impact of the cap and the feed gap is included.

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12

Gharibi, Hassan, and Farrokh Hojat Kashani. "DESIGN OF A WIDEBAND MONOPULSE ANTENNA USING FOUR CONICAL HELIX ANTENNAS." Progress In Electromagnetics Research Letters 29 (2012): 25–33. http://dx.doi.org/10.2528/pierl11111106.

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13

Klemes, Marek. "Reception of OAM Radio Waves Using Pseudo-Doppler Interpolation Techniques: A Frequency-Domain Approach." Applied Sciences 9, no. 6 (March 14, 2019): 1082. http://dx.doi.org/10.3390/app9061082.

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This paper presents a practical method of receiving waves having orbital angular momentum (OAM) in the far field of an antenna transmitting multiple OAM modes, each carrying a separate data stream at the same radio frequency (RF). The OAM modes are made to overlap by design of the transmitting antenna structure. They are simultaneously received at a known far-field distance using a minimum of two antennas separated by a short distance tangential to the OAM conical beams’ maxima and endowed with different pseudo-Doppler frequency shifts by a modulating arrangement that dynamically interpolates their phases between the two receiving antennas. Subsequently down-converted harmonics of the pseudo-Doppler shifted spectra are linearly combined by sets of weighting coefficients which effectively separate each OAM mode in the frequency domain, resulting in a higher signal-to-noise ratios (SNR) than possible using spatial-domain OAM reception techniques. Moreover, no more than two receiving antennas are necessary to separate any number of OAM modes in principle, unlike conventional MIMO (Multi-Input, Multi-Output) which requires at least K antennas to resolve K spatial modes.

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14

Hamid, M. "HIGH PERFORMANCE CONICAL HORN ANTENNAS (PART I)." Journal of Electromagnetic Waves and Applications 17, no. 4 (January 2003): 585–95. http://dx.doi.org/10.1163/15693930360681901.

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15

Kawakami, H., G. Sato, and R. Wakabayashi. "Research on circularly polarized conical-beam antennas." IEEE Antennas and Propagation Magazine 39, no. 3 (June 1997): 27–39. http://dx.doi.org/10.1109/74.598558.

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16

Kyi, Yu Yu, and Jian-Ying Li. "ANALYSIS OF ELECTRICALLY SMALL SIZE CONICAL ANTENNAS." Progress In Electromagnetics Research Letters 1 (2008): 85–92. http://dx.doi.org/10.2528/pierl07111907.

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17

Hansen, R. C. "On the directivity of conical horn antennas." Microwave and Optical Technology Letters 1, no. 10 (December 1988): 386–88. http://dx.doi.org/10.1002/mop.4650011011.

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18

Sandler, S. S., and R. W. P. King. "Compact conical antennas for wide-band coverage." IEEE Transactions on Antennas and Propagation 42, no. 3 (March 1994): 436–39. http://dx.doi.org/10.1109/8.280735.

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19

Morishita, H., S. Takahashi, and T. Kamei. "Conical beam control of quadrifilar helical antennas." Electronics Letters 34, no. 20 (1998): 1899. http://dx.doi.org/10.1049/el:19981370.

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20

Douksha, D. V., S. V. Liashkevich, and V. A. Saetchnikov. "Development of an out-of-Focus Irradiator Based on a Phased Antenna Array for a Space Communications' Parabolic Reflector Antenna." Devices and Methods of Measurements 10, no. 3 (September 9, 2019): 233–42. http://dx.doi.org/10.21122/2220-9506-2019-10-3-233-242.

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Mirror antenna systems are widely used in satellite and space communication systems and radio astronomy. Development of these areas requires new efficient antenna systems' design. Possible technical solution for creating an effective mirror antenna is a “hybrid” scheme, when an adaptive phased antenna array is used as an irradiator. This paper is devoted to the development of an out-of-focus irradiator based on a phased antenna array for a space communications' parabolic reflector antenna. The aim of the work is to develop an optimal design of the irradiator with the choice of the structural element of the antenna array and experimental studies of the selected structural element.The wavefront recovery method was used as a tool for selecting the irradiator configuration. The idea of this method use is to reproduce the electromagnetic field of an incident plane wave with an irradiator in order to uniformly illuminate the aperture of the antenna mirror.In order to select the structural element of the irradiator several antennas were considered: a patch antenna, a flat spiral antenna, a conical spiral antenna. The requirements for the phased antenna array element were defined. The irradiator based on the above mentioned was simulated and the irradiator geometry was optimized according to the maximum gain criterion.The maximum gain was achieved for the irradiator based on conical spiral antennas and amounted to 30.8 dB, which for the considered mirror aperture of 2.4 m is close to traditional focal schemes. The results obtained make it possible to create an adaptive antenna system able to compensate for the deviations of the mirror's shape from the theoretical profile, as well as phase distortions in the atmosphere by changing the lattice weights coefficients.

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21

Kotzev, Miroslav, Matthias Kreitlow, and Frank Gronwald. "Design and analysis of ultra-wideband antennas for transient field excitations." Advances in Radio Science 14 (September 28, 2016): 25–29. http://dx.doi.org/10.5194/ars-14-25-2016.

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Abstract. This work addresses the design of two ultra-wideband antennas for the application of transient field measurements that are characterized by frequency spectra that typically range from a few MHz to several GHz. The motivation for their design is the excitation of high power transient pulses, such as double exponential or damped sinusoidal pulses, within highly resonant metallic enclosures. The antenna design is based on two independent numerical full-wave solvers and it is aimed to achieve a low return loss over a wide range of frequencies together with a high pulse fidelity. It turns out that antennas of the conical and discone type do achieve satisfactory broadband characteristics while limitations towards low frequencies persist. Also the concept of fidelity factor turns out as advantageous to determine whether the proposed antennas allow transmitting certain broadband pulse forms.

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22

He, Wei, Yejun He, Long Zhang, Sai-Wai Wong, Wenting Li, and Amir Boag. "A Low-Profile Circularly Polarized Conical-Beam Antenna with Wide Overlap Bandwidth." Wireless Communications and Mobile Computing 2021 (February 27, 2021): 1–11. http://dx.doi.org/10.1155/2021/6648887.

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In this paper, a low-profile circularly polarized (CP) conical-beam antenna with a wide overlap bandwidth is presented. Such an antenna is constructed on the two sides of a square substrate. The antenna consists of a wideband monopolar patch antenna fed by a probe in the center and two sets of arc-hook-shaped branches. The monopolar patch antenna is loaded by a set of conductive shorting vias to achieve a wideband vertically polarized electric field. Two sets of arc-hook-shaped parasitic branches connected to the patch and ground plane can generate a horizontally polarized electric field. To further increase the bandwidth of the horizontally polarized electric field, two types of arc-hook-shaped branches with different sizes are used, which can generate another resonant frequency. When the parameters of the arc-hook-shaped branches are reasonably adjusted, a 90° phase difference can be generated between the vertically polarized electric field and the horizontally polarized electric field, so that the antenna can produce a wideband CP radiation pattern with a conical beam. The proposed antenna has a wide impedance bandwidth ( ∣ S 11 ∣ < − 10 dB ) of 35.6% (4.97-7.14 GHz) and a 3 dB axial ratio (AR) bandwidth at phi = 0 ° and theta = 35 ° of about 30.1% (4.97-6.73 GHz). Compared with the earlier reported conical-beam CP antennas, an important feature of the proposed antenna is that the AR bandwidth is completely included in the impedance bandwidth, that is, the overlap bandwidth of ∣ S 11 ∣ < − 10 dB and AR < 3 dB is 30.1%. Moreover, the stable omnidirectional conical-beam radiation patterns can be maintained within the whole operational bandwidth.

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23

Besso, Piermario, Maurizio Bozzi, Marco Formaggi, and Luca Perregrini. "Pointing enhancement techniques for deep-space antennas." International Journal of Microwave and Wireless Technologies 2, no. 2 (April 2010): 211–18. http://dx.doi.org/10.1017/s1759078710000139.

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The present paper presents a very efficient technique for enhancing the pointing accuracy in beam-waveguide (BWG) antennas and its application to the deep space antenna DSA2 of the European Space Agency. The proposed technique permits to achieve a twofold result: on the one hand, it provides a solution to the beam aberration issue, arising when the antenna simultaneously receives from and transmits to a spacecraft moving in the transversal direction. On the other hand, it allows to perform a fast conical scan to enhance the pointing accuracy of the antenna. Both results are achieved by simple linear displacements of feeds and mirrors located in the lower part of the BWG, with a very limited deterioration of the antenna gain. The required displacements of feeds and mirrors are determined through a fast optimization algorithm, based on a top-down approach, which requires repeated physical–optics analyses of the lower part of the beam waveguide only, with a significant reduction in the computing time.

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24

Abbas-Azimi, Majid, Farhad Mazlumi, and Fereidoon Behnia. "Design of Broadband Constant-Beamwidth Conical Corrugated-Horn Antennas [Antenna Designer's Notebook." IEEE Antennas and Propagation Magazine 51, no. 5 (October 2009): 109–14. http://dx.doi.org/10.1109/map.2009.5432055.

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25

Sun, C. Z. "The Research of DOA Estimation Algorithms in the Conformal Array Antenna." Applied Mechanics and Materials 743 (March 2015): 471–73. http://dx.doi.org/10.4028/www.scientific.net/amm.743.471.

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To the conformal array antennas, the conventional DOA estimation algorithms will be affected by the Rayleigh limit. While, the MUSIC algorithm can solve this problem, it fully utilizes the orthogonality of noise subspace and signal subspace. It can achieve the DOA estimation through the spectrum peak search. The MUSIC algorithm is analyzed. Based on the cylindrical and conical array antenna, the algorithms are simulated. The simulation results show that the array arrangement mode can exert an important influence on the DOA estimation.

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26

Sabino, Vanine, and Odilon M. C. Pereira‐Filho. "MoM analysis of cavity‐backed annular conical antennas." IET Microwaves, Antennas & Propagation 12, no. 8 (March 22, 2018): 1352–59. http://dx.doi.org/10.1049/iet-map.2017.0670.

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27

Toral, M. A., R. B. Ratliff, M. C. Lecha, J. G. Maruschak, C. L. Bennett, and G. F. Smoot. "Measurements of very low-sidelobe conical horn antennas." IEEE Transactions on Antennas and Propagation 37, no. 2 (February 1989): 171–77. http://dx.doi.org/10.1109/8.18703.

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28

Olmi, L., and M. M. Davis. "Pointing large antennas using the conical scan technique." Astronomy and Astrophysics Supplement Series 129, no. 1 (April 1998): 177–89. http://dx.doi.org/10.1051/aas:1998179.

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29

Ibrahim, E. M., N. J. McEwan, R. A. Abd-Alhameed, and P. S. Excell. "Dual-polarised uniplanar conical-beam antennas for HIPERLAN." Electronics Letters 35, no. 1 (1999): 2. http://dx.doi.org/10.1049/el:19990061.

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30

Kishk, A. A., Yan Yin, and A. W. Glisson. "Conical dielectric resonator antennas for wide-band applications." IEEE Transactions on Antennas and Propagation 50, no. 4 (April 2002): 469–74. http://dx.doi.org/10.1109/tap.2002.1003382.

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31

Carkaci, M. E., and M. Secmen. "The Prototype of a Wideband Ku-Band Conical Corrugated Horn Antenna with 3-D Printing Technology." Advanced Electromagnetics 8, no. 2 (March 17, 2019): 39–47. http://dx.doi.org/10.7716/aem.v8i2.977.

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This study is about the design and production of a conical corrugated horn antenna used to feed reflector antennas in satellite communication (direct broadcast satellite-DBS) systems. The antenna designed with CST Microwave Studio program operates within wideband of 10.5-18.5 GHz at Ku-band. The prototype is realized with new generation 3D printing technology and conductive paint coating method, which makes the antenna lightweight and provides low cost and faster production. According to measurement results, the antenna has return loss almost better than 20 dB, gain value of minimum 14.5 dBi and sidelobe level of -18 dB at most within 1.76:1 frequency bandwidth. Antenna is observed to have a gain loss of at most 1.5-2 dB within the band as compared to the same antenna with high conductivity metal, which needs higher cost and production time for the manufacturing.

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32

Fartookzadeh, M., and S. H. Mohseni Armaki. "Multi-band conical and inverted conical printed quadrifilar helical antennas with compact feed networks." AEU - International Journal of Electronics and Communications 70, no. 1 (January 2016): 33–39. http://dx.doi.org/10.1016/j.aeue.2015.09.018.

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33

Tan, Chin Yeng, Krishnasamy T. Selvan, and Yew Meng Koh. "Derivation of Conditions for the Normal Gain Behavior of Conical Horns." International Journal of Antennas and Propagation 2007 (2007): 1–4. http://dx.doi.org/10.1155/2007/32345.

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Monotonically increasing gain-versus-frequency pattern is in general expected to be a characteristic of aperture antennas that include the smooth-wall conical horn. While optimum gain conical horns do naturally exhibit this behavior, nonoptimum horns need to meet certain criterion: a minimum axial length for given aperture diameter, or, alternatively, a maximum aperture diameter for the given axial length. In this paper, approximate expressions are derived to determine these parameters.

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34

Kishk, A. A., and C. S. Lim. "Comparative Analysis between Conical and Gaussian Profiled Horn Antennas." Progress In Electromagnetics Research 38 (2002): 147–66. http://dx.doi.org/10.2528/pier02052406.

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35

Blume, S., and B. Grafmuller. "Biconical antennas and conical horns with elliptic cross section." IEEE Transactions on Antennas and Propagation 36, no. 8 (August 1988): 1066–70. http://dx.doi.org/10.1109/8.7218.

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36

Skobelev, S. P., and P. S. Kildal. "Some features of hard strip-loaded conical horn antennas." IEE Proceedings - Microwaves, Antennas and Propagation 150, no. 3 (2003): 171. http://dx.doi.org/10.1049/ip-map:20030415.

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37

Kishk, Ahmed A., A. W. Glisson, and Yan Yin. "Conical dielectric resonator antennas excited by a coaxial probe." Microwave and Optical Technology Letters 29, no. 3 (2001): 160–61. http://dx.doi.org/10.1002/mop.1115.

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38

Hertel, T. W., and G. S. Smith. "Analysis and design of two-arm conical spiral antennas." IEEE Transactions on Electromagnetic Compatibility 44, no. 1 (2002): 25–37. http://dx.doi.org/10.1109/15.990708.

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39

Wang, Jian, Xue-Song Yang, Xiao Ding, and Bing-Zhong Wang. "Topology Optimization of Conical-Beam Antennas Exploiting Rotational Symmetry." IEEE Transactions on Antennas and Propagation 66, no. 5 (May 2018): 2254–61. http://dx.doi.org/10.1109/tap.2018.2814213.

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40

Cherevko, Alexander G., and Yury V. Morgachev. "DESIGNING A DEPLOYABLE ENVIRONMENTAL SPIRAL CONICAL LOGARITHMIC GRAPHENE ANTENNA FOR SATELLITE COMMUNICATIONS." Interexpo GEO-Siberia 8, no. 2 (July 8, 2020): 62–68. http://dx.doi.org/10.33764/2618-981x-2020-8-2-62-68.

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One of the main directions in the development of information technology is satellite communications (SС). Therefore, the elemental base of the SС is subject to increased requirements for weight and size characteristics and environmental friendliness. Research is needed on the use of new materials and technologies that will provide the required level of the above characteristics in order to achieve these requirements. One such promising technology is the printing of graphene inks on biodegradable substrates. Graphene inks do not corrode and are lighter than metal analogues. The possibility of using this technology allowed us to develop the direction of deployable antennas, which have the preferred weight and size characteristics, are easily transported and installed. The results of the development of an environmental spiral logarithmic graphene antenna for satellite communications, are presented. This antenna can be applied in the L-, S- and C-bands as well as GPS bands. A possible design and folding method is presented. The effect of the substrate's revolutions number on the S parameter is considered. The calculated radiation pattern in two planes is presented.

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41

Artner, Gerald, Philipp K. Gentner, Johann Nicolics, and Christoph F. Mecklenbräuker. "Carbon Fiber Reinforced Polymer with Shredded Fibers: Quasi-Isotropic Material Properties and Antenna Performance." International Journal of Antennas and Propagation 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/6152651.

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A carbon fiber reinforced polymer (CFRP) laminate, with the top layer consisting of shredded fibers, is proposed and manufactured. The shredded fibers are aligned randomly on the surface to achieve a more isotropic conductivity, as is desired in antenna applications. Moreover, fiber shreds can be recycled from carbon fiber composites. Conductivity, permittivity, and permeability are obtained with the Nicolson-Ross-Weir method from material samples measured inside rectangular waveguides in the frequency range of 4 to 6 GHz. The decrease in material anisotropy results in negligible influence on antennas. This is shown by measuring the proposed CFRP as ground plane material for both a narrowband wire monopole antenna for 5.9 GHz and an ultrawideband conical monopole antenna for 1–10 GHz. For comparison, all measurements are repeated with a twill-weave CFRP.

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42

Shankpal, Preetham, Varun Arur, Govind Kadambi, and James Shuttleworth. "A Generalized Approach for Computation of Near Field Radiation Pattern of an Antenna." International Journal of Antennas and Propagation 2014 (2014): 1–18. http://dx.doi.org/10.1155/2014/958148.

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A generalized procedure in the form of an analytical formulation for the determination of radiation pattern of an antenna at any arbitrary distance which covers the near field as well as far field is presented in this paper. With the prior knowledge of either the current or field distribution on the radiating aperture, the proposed near field analysis is generic and can be applied for wide variety of antenna elements. The underlying principle of the generalized procedure is tantamount to considering the radiating aperture as an array of point electric and magnetic dipoles. The validity and novelty of the proposed new approach have been substantiated considering an open ended circular cylindrical waveguide and a conical horn as case studies and treating the far field as a special case of near field with pertinent distance criterion. The effect of change in the distance of observation ranging from reactive near field to far field on the radiation patterns of these antennas has also been discussed. The simulation studies reveal that the depicted normalized phase patterns of both the circular waveguide and conical horn follow the changes in the profile of the corresponding amplitude patterns.

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43

Bukharov, S. V., U. V. Gornyak, D. M. Svynarenko, L. Y. Tsipko, and L. A. Filins’kyy. "Dielectric rod surface mount antennas for telecommunications." Journal of Physics and Electronics 26, no. 2 (December 26, 2018): 93–96. http://dx.doi.org/10.15421/331831.

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Abstract:

The results of modeling broadband antennas for surface mounting on metal surfaces are presented. The considered antennas are a broadband excitation node in a dielectric shell in the form of a fragment of a conical waveguide. The simulation was carried out by the method of moments in the FEKO software environment. The frequency dependences of the input resistance, the standing wave coefficient, and the directional pattern are obtained. Comparison of the modeling results of the excitation node and the results of VSWR measurements of the manufactured model are presented. Modifications of antennas with the direction of the dielectric waveguide along the surface and perpendicular to it are considered. The received antennas can be used by telecommunication systems for installation on mobile and stationary objects.

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Kishk, A. A., and C. S. Lim. "COMPARATIVE ANALYSIS BETWEEN CONICAL AND GAUSSIAN PROFILED HORN ANTENNAS - Abstract." Journal of Electromagnetic Waves and Applications 17, no. 4 (January 2003): 599–600. http://dx.doi.org/10.1163/15693930360681929.

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Tsai, Jia-Fu, and Jeen-Sheen Row. "Design of frequency-agile microstrip antennas with conical-beam radiation." Microwave and Optical Technology Letters 53, no. 4 (February 22, 2011): 783–85. http://dx.doi.org/10.1002/mop.25832.

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Thomas, B., G. James, and K. Greene. "Design of wide-band corrugated conical horns for Cassegrain antennas." IEEE Transactions on Antennas and Propagation 34, no. 6 (June 1986): 750–57. http://dx.doi.org/10.1109/tap.1986.1143899.

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Tang Jianming, 唐剑明, 赵青 Zhao Qing, 郑灵 Zheng Ling, 刘述章 Liu Shuzhang, and 罗先刚 Luo Xiangang. "Theory and simulation of 3 mm conical horn focusing lens antennas." High Power Laser and Particle Beams 24, no. 2 (2012): 436–40. http://dx.doi.org/10.3788/hplpb20122402.0436.

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Kumar, G., and L. Shafai. "Generation of conical patterns from circular patch antennas and their performance." Canadian Electrical Engineering Journal 10, no. 3 (July 1985): 108–12. http://dx.doi.org/10.1109/ceej.1985.6594438.

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Oliveri, G., E. T. Bekele, M. Salucci, and A. Massa. "Transformation Electromagnetics Miniaturization of Sectoral and Conical Metamaterial-Enhanced Horn Antennas." IEEE Transactions on Antennas and Propagation 64, no. 4 (April 2016): 1508–13. http://dx.doi.org/10.1109/tap.2016.2522465.

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Dastranj, Aliakbar, Habibollah Abiri, and Alireza Mallahzadeh. "Design of conical DRH antennas for K and Ka frequency bands." International Journal of RF and Microwave Computer-Aided Engineering 21, no. 5 (July 21, 2011): 602–10. http://dx.doi.org/10.1002/mmce.20548.

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