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Journal articles on the topic 'Helical antenna'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Khan, Inammullah. "Design of an Innovative Helical Antenna for Aerial Platforms to Enable Jam Resistant Reception of GNSS Signals." SISTEMASI 8, no. 2 (2019): 233. http://dx.doi.org/10.32520/stmsi.v8i2.467.

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This paper describes the design of a helical antenna at GPS upper L band frequency. Helical antennas are widely used in airborne and space borne applications to receive GNSS signals. One major concern in reception of GNSS signals is their susceptibility to jamming signals. To address this problem a novel antenna design is proposed in this paper. The proposed design provides lower side lobe levels than conventional helical antennas, without compromising efficiency of the antenna. The lower side lobe levels are the key feature in making the antenna less susceptible to jamming signals. Moreover,

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2

Faizal, Iwan. "PENGEMBANGAN ANTENA HELIKS X-BAND 8,2 GHZ UNTUK SATELIT MIKRO (DEVELOPMENT OF 8.2 GHZ X-BAND HELICAL ANTENNA FOR MICRO SATELLITE)." Jurnal Teknologi Dirgantara 14, no. 2 (2017): 103. http://dx.doi.org/10.30536/j.jtd.2016.v14.a2494.

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Helical antenna is one of the antennas which are very popular among amateurs satellite. In the X-band frequency, circularly polarized antenna is necessary, because it can overcome the effects of anomalous propagation, ground reflection, and rotational dynamic effects that occur in many satellites. These antennas have a large enough gain, that can reach 15 dB and has a directional radiation pattern with a bandwidth ratio of 1.78: 1 and is almost close to the broadcast antenna (≥ 2). The purpose of this research was to design, create prototypes, and analyze performance of X-band helical antenna

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3

Segun, Adewumi Adebayo, Eleyele Dolapo Emmanuel, Alagbe Atilade George, and Azeez Ibraheem Abiodun. "DESIGN, SIMULATION AND PERFORMANCE EVALUATION OF HELICAL ANTENNA FOR 4G AND 5G MOBILE NETWORKS COMPLIANCE." Acta Electronica Malaysia 8, no. 2 (2024): 39–44. https://doi.org/10.26480/aem.02.2024.39.44.

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The 5G cellular network aims to address bandwidth needs due to the large number of subscribers worldwide. However, higher-bandwidth antennas are needed to integrate into the design. Helical antennas offer design simplicity, gain, and wider bandwidth, but their radiation pattern narrows bandwidth as diameter and turn increase. This paper aims to develop and evaluate the performance of helical antennas at different dimensions and turns for 4G and 5G network frequency applications. The study used MATLAB 2021a to design and simulate helical antennas with various turns. Parameters like width, spaci

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4

Parsha, Manivara Kumar* Lam Ravi Chandra Rajesh Katragadda. "OPEN ENDED QUADRIFILAR HELIX SUITABLE FOR GPS RECEPTION." Global Journal of Engineering Science and Research Management 3, no. 5 (2016): 89–92. https://doi.org/10.5281/zenodo.51761.

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In this paper, an open ended Quadrifilar Helical Antenna (QHA) is proposed. A Quadrifilar Helical Antenna with parasitic helical strips for circular polarization. The mutual coupling effect between the grounded helical strips and the feeding helical arms provides a good impedance match and wider hemispherical coverage. The impedance ranges from 40Ώ to 70Ώ for the frequencies 2.28 GHz to 2.52 GHz. The 3dB Bandwidth obtained is 1400. This antenna works well for wi- fi signals reflected off from building and moving vehicles. This antenna is also suitable for GPS receiving purpose. This antenna is

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5

Zeki, Firas Muhammad, and Adil Hussein Mohammed Al-Dalawie. "Design and Implementation a Non-uniform Helical Antenna in Frequency Range of 450–850 MHz for Ultra-high-frequency Television Application." Cihan University-Erbil Scientific Journal 3, no. 2 (2019): 75–79. http://dx.doi.org/10.24086/cuesj.v3n2y2019.pp75-79.

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In a domestic region, the people are living inside cities, they complaining from the weak of local TV broadcasting signals in frequency range of 450–850 MHz, in this paper try to get a solution by increase the gain antenna by design new antenna have a wideband and high gain compare with antennas are available in the local market. A non-uniform helical antenna designed using helical antenna calculator according to equations then implemented and measured the radiation pattern and gain of antenna, then compare with commercial loop antenna gain found increase in received power about 10–12 dB more

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6

Palomares-Caballero, Ángel, Pablo Padilla, Antonio Alex-Amor, Juan Valenzuela-Valdés, and Oscar Quevedo-Teruel. "Twist and Glide Symmetries for Helix Antenna Design and Miniaturization." Symmetry 11, no. 3 (2019): 349. http://dx.doi.org/10.3390/sym11030349.

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Here we propose the use of twist and glide symmetries to increase the equivalent refractive index in a helical guiding structure. Twist- and glide-symmetrical distributions are created with corrugations placed at both sides of a helical strip. Combined twist-and glide-symmetrical helical unit cells are studied in terms of their constituent parameters. The increase of the propagation constant is mainly controlled by the length of the corrugations. In our proposed helix antenna, twist and glide symmetry cells are used to reduce significantly the operational frequency compared with conventional h

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7

Xiong, Xiao Feng, and Wei Dong Chen. "A Broad Band and Wide Beam Microstrip Antenna Array." Applied Mechanics and Materials 427-429 (September 2013): 648–51. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.648.

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A novel broad band and wide beam microstrip helical antenna is proposed based on the modification of traditional helical antennas. Through selecting the appropriate operating mode between the axial mode and the normal mode, this new antenna can broad both the beamwidth and the bandwidth. To improve the gain of the antenna, An antenna array with 1*16 elements is designed and fabricated. Meanwhile, cavity-loaded feeding network is utilized for probe station measurement. The simulated impedance and radiation pattern are studied. The proposed antenna shows a wide impedance bandwidth from 7.6GHz to

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8

Bait-Suwailam, M. M., and O. M. Ramahi. "Mutual Coupling Reduction Between Axial-Mode Helical Antennas using Single-Negative (SNG) Magnetic Metamaterials." Journal of Engineering Research [TJER] 7, no. 2 (2010): 59. http://dx.doi.org/10.24200/tjer.vol7iss2pp59-68.

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This paper investigates the mutual coupling effects between axial-mode helical antenna arrays. Single-negative (SNG) magnetic metamaterials are developed and used in this work in order to reduce mutual coupling between axial-mode helical antennas used in multiple-input multiple-output systems. The inclusions considered here are composed of broadside coupled split-ring resonators. The magnetic permeability of those SNG inclusions have complex effective magnetic permeability response over a frequency band with high negative real part above the resonance and positive real part below the resonance

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9

Ranjan, Pinku, Mihir Patil, Amit Bage, Brajesh Kumar, and Sandeep Kumar. "Design and analysis of Quadrifilar helical antenna for Cube-Sats using C-band frequency range for satellite communication." Facta universitatis - series: Electronics and Energetics 32, no. 2 (2019): 239–47. http://dx.doi.org/10.2298/fuee1902239r.

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Design and analysis of Quadrifilar helical antenna are presented in this paper. The proposed antenna is designed for Cube-Sats in the low earth and medium earth orbits. It is a combination of four helical antennas, each separated by 90?, and excited separately at the feeding point. The antenna is designed for operation at 4.5 GHz with an impedance bandwidth of 11.11 %. Design of the antenna is done in two steps. The first step being the design of a ground plane, which can make the antenna operate at 4.5 GHz. The second step is to analyze the antenna?s performance for different helix angles usi

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10

Dinkić, Jelena Lj, Dragan I. Olćan, Antonije R. Djordjević, and Alenka G. Zajić. "High-Gain Quad Array of Nonuniform Helical Antennas." International Journal of Antennas and Propagation 2019 (March 28, 2019): 1–12. http://dx.doi.org/10.1155/2019/8421809.

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We present a design of a high-gain quad array of nonuniform helical antennas. The design is obtained by optimization of a 3-D numerical model of four nonuniform helical antennas placed above a ground plane, including a model of a feeding network, utilizing the method of moments with higher-order basis functions. The gain of one optimal nonuniform helical antenna can be about 2.5 dB higher than the gain of a uniform helical antenna of the same axial length. Creating a 2×2 array further increases the gain up to about 6 dB. The resulting quad array fits into a box whose dimensions are 2.5×3.3×3.3

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11

Sreang, Naranut, and Jae-Young Chung. "Miniaturized Antenna Design for Wireless and Powerless Surface Acoustic Wave Temperature Sensors." Sensors 24, no. 17 (2024): 5490. http://dx.doi.org/10.3390/s24175490.

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This paper presents the introduction, design, and experimental validation of two small helical antennae. These antennae are a component of the surface acoustic wave (SAW) sensor interrogation system, which has been miniaturized to operate at 915 MHz and aims to improve the performance of wireless passive SAW temperature-sensing applications. The proposed antenna designs are the normal-mode cylindrical helical antenna (CHA) and the hemispherical helical antenna (HSHA); both designed structures are developed for the ISM band, which ranges from 902 MHz to 928 MHz. The antennae exhibit resonance a

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12

Bal, Subhradip, Subha Mandal, Md Mustafa Abdullha, and Gobinda Sen. "Design of a 3D Printed Helical Antenna having High Gain for 2.4 GHz ISM Band Applications." Defence Science Journal 75, no. 3 (2025): 325–30. https://doi.org/10.14429/dsj.20901.

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A helical antenna that is designed for circular polarisation throughout an extensive axial-ratio (AR) bandwidth is demonstrated. The antenna is constructed from copper wire and is supported by a 3D-printed polylactic Acid (PLA) structure. The antenna’s performance (reflection coefficient, axial ratio, gain, and radiation pattern) is comprehensively analysed and influenced by the geometric characteristics of the helix and the quantity of PLA used inside the coil diameter. The pre-designed PLA framework is used to construct the antenna prototype by coiling a 1 mm diameter copper wire around it.

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13

Afiza, Nur Jaafar, Ja'afar Hajar, Yamada Yoshihide, Sadeghikia Fatemeh, Pasya Ibrahim Idnin, and Khairil Adzhar Mahmood Mohd. "Design of an axial mode helical antenna with buffer layer for underwater applications." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 1 (2023): 473–82. https://doi.org/10.11591/ijece.v13i1.pp473-482.

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Recently, there is an increasing demand for high-speed wireless communication network for short-range underwater communication. From previous research, most underwater antennas produced omnidirectional radiation pattern which has lower antenna gain. There are a few considerations that need to be taken if the antenna is designed to operate in water environment. This paper discusses the electromagnetic properties which affect the underwater antenna design. Physical properties such as electrical permittivity and conductivity of water contribute significant effect to the size of the antenna as it

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14

Alahmad, Raji, Hussam Alraie, Ryosuke Hasaba, et al. "Performance Analysis of Underwater Radiofrequency Communication in Seawater: An Experimental Study." Journal of Marine Science and Engineering 12, no. 11 (2024): 2104. http://dx.doi.org/10.3390/jmse12112104.

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Communication with the underwater vehicles during their tasks is one of the most important issues. The need for real-time data transfer raises the necessity of developing communication systems. Conventional underwater communication systems, such as acoustic systems, cannot satisfy applications that need a high transmission data rate. In this study, we investigate the radio frequency communication system in seawater, which is crucial for real-time data transfer with underwater vehicles. The experiments were in a water tank full of seawater and a real environment in the ocean. Three types of ant

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15

Djordfevic, Antonije R., Alenka G. Zajic, Milan M. Ilic, and Gordon L. Stuber. "Optimization of Helical antennas [Antenna Designer's Notebook]." IEEE Antennas and Propagation Magazine 48, no. 6 (2006): 107–15. http://dx.doi.org/10.1109/map.2006.323359.

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16

Dung, Dang Tien, Quoc Dinh Nguyen, Do Quoc Trinh, and Yoshihide Yamada. "Investigating Equations Used to Design a Very Small Normal-Mode Helical Antenna in Free Space." International Journal of Antennas and Propagation 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/7967468.

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A normal-mode helical antenna (NMHA) has been applied in some small devices such as tire pressure monitoring systems (TPMS) and radio frequency identification (RFID) tags. Previously, electrical characteristics of NMHA were obtained through electromagnetic simulations. In practical design of NMHA, equational expressions for the main electrical characteristics are more convenient. Electrical performances of NMHA can be expressed by a combination of a short dipole and small loops. Applicability of equations for a short dipole and a small loop to very small normal-mode helical antennas such as an

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17

Zeng, Lingqi, Chengxin Wang, Haibo Liu, et al. "Influence of Antenna Element Position Deviation on Radiation Performance of Helical Antenna Array." Sensors 23, no. 10 (2023): 4827. http://dx.doi.org/10.3390/s23104827.

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The electrical performance of the feed array is degraded because of the position deviation of the array elements caused by manufacturing and processing, which cannot meet the high performance feeding requirements of large feed arrays. In this paper, a radiation field model of the helical antenna array considering the position deviation of array elements is proposed to investigate the influence law of position deviation on the electrical performance of the feed array. With the established model, the rectangular planar array and the circular array of the helical antenna with a radiating cup are

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18

Alao, Olufunke Janet, Adekunle Titus Adediji, Joseph Sunday Ojo, and Theophilus Ewetumo. "PERFORMANCE ANALYSIS OF QUADRIFILAR HELICAL ANTENNA: A COMPREHENSIVE SURVEY." International Journal of Applied Science and Research 07, no. 05 (2024): 155–67. https://doi.org/10.56293/ijasr.2024.6121.

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The electromagnetic spectrum band of frequency of 2.4 GHz to 5 GHz, were allocated to industry in the past, but recently in the advancement of Technology development the frequency band are been shared by Industrial, Scientific and Medical (ISM). Now, this band of frequency as also being used for Wi-Fi, Bluetooth, and cordless devices. Due to different types of antennas such as a Quadrifilar helical antenna, dielectric resonator antenna, microstrip patch antenna, etc. are used for the above-mentioned devices. However, due to small size and weight microstrip patch antenna become dominant in this

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19

Zeain, Mohammed Yousif, M. Abu, Z. Zakaria, et al. "Design of a wideband strip helical antenna for 5G applications." Bulletin of Electrical Engineering and Informatics 9, no. 5 (2020): 1958–63. http://dx.doi.org/10.11591/eei.v9i5.2055.

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This paper presents the design of wideband strip helical antenna for 5G Application. The strip helical antenna is designed for 5G and wideband applications that provide a wide bandwidth and circular polarization. The helical antenna is planned on at 5.8 GHz frequency by using Teflon material. The new designed strip is printed on a substrate then rolled into a helix shape to achieve circular polarization without an impedance matching and that the proposed antenna can be used for potential applications in wideband wireless communication. A wideband bandwidth of 2.41 GHz with a resonant frequency

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20

M., Y. Zeain, Abu M., Zakaria Z., et al. "Design of a wideband strip helical antenna for 5G applications." Bulletin of Electrical Engineering and Informatics 9, no. 5 (2020): 1958–63. https://doi.org/10.11591/eei.v9i5.2055.

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This paper presents the design of wideband strip helical antenna for 5G Application. The strip helical antenna is designed for 5G and wideband applications that provide a wide bandwidth and circular polarization. The helical antenna is planned on at 5.8 GHz frequency by using Teflon material. The new designed strip is printed on a substrate then rolled into a helix shape to achieve circular polarization without an impedance matching and that the proposed antenna can be used for potential applications in wideband wireless communication. A wideband bandwidth of 2.41 GHz with a resonant frequency

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21

Yudhotomo, Unggul Satrio, Selfira Salsabilla, Khaerudin, and Timbul Siahaan. "2.2 Ghz S-Band Helical Antenna Design for Earth Surveillance LAPAN-TUBSAT Data Acquisition in Indonesia Regional Security." International Journal of Research and Innovation in Applied Science 07, no. 11 (2022): 43–49. http://dx.doi.org/10.51584/ijrias.2022.71103.

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It is necessary to have an LAPAN-TUBSAT (Lembaga Penerbangan dan Antariksa Nasional/ National Institute of Aeronautics and Space) (Technische University of Berlin Satellite) satellite data receiving system that is low cost and can be placed in various parts of Indonesia. This system will later spear head the data receiver and this meets all areas detected by the earth surveillance method in real time and can be recorded at the Earth Station. By using a helical antenna that is engineered independently with the rules of the S band at 2.22 GHz, it will be able to control the Indonesian region. Th

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22

Jaafar, Afiza Nur, Hajar Ja’afar, Yoshihide Yamada, Fatemeh Sadeghikia, Idnin Pasya Ibrahim, and Mohd Khairil Adzhar Mahmood. "Design of an axial mode helical antenna with buffer layer for underwater applications." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 1 (2023): 473. http://dx.doi.org/10.11591/ijece.v13i1.pp473-482.

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<span lang="EN-US">Recently, there is an increasing demand for high-speed wireless communication network for short-range underwater communication. From previous research, most underwater antennas produced omnidirectional radiation pattern which has lower antenna gain. There are a few considerations that need to be taken if the antenna is designed to operate in water environment. This paper discusses the electromagnetic properties which affect the underwater antenna design. Physical properties such as electrical permittivity and conductivity of water contribute significant effect to the s

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23

Ran, Xiao Ying, and Zhen Yu. "Design and Development of Antennas Design and Testing System." Applied Mechanics and Materials 610 (August 2014): 827–34. http://dx.doi.org/10.4028/www.scientific.net/amm.610.827.

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Based on the antenna experiment hardware, an antennas design and testing system is achieved by use of Visual Basic and Flash software development tools. The paper introduces the antenna experiment hardware and antenna pattern and input impedance measurement methods, discusses the overall structure of the system and software design. Take the helical antenna as an example demonstrates the system application in antenna simulation, design, and measurement procedure. The application shows that the self-developed system with interactive, practical and realistic which has been applied to the curricul

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24

Qiu, Yang-xin, Yan-zhao Xie, Shao-fei Wang, Qi Li, Yu-hao Gu, and Pu-qing Zhang. "A miniatured helical antenna based on the sinusoidal folding structure with exponential spacing." Review of Scientific Instruments 93, no. 8 (2022): 084702. http://dx.doi.org/10.1063/5.0100461.

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An exponential spacing and sinusoidal folded helical (ESSFH) antenna backed with a cavity is developed in this paper. Compared with the conventional helical (CH) antenna, the proposed antenna not only has smaller dimension but also exhibits a wider working bandwidth, a higher gain, and a better circular polarization (CP) characteristic. To reduce the dimension of the helical antenna, a sinusoidal structure is adopted along the circumference of the helix. However, it deteriorates the CP characteristic of the antenna. Therefore, the structure of the exponential helix spacing is introduced into t

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25

Lee, Jong-Bae, Young-Jin Yook, Ho-Yong Sin, Hyung-Sun Kim, and Jong-In Im. "Development of Helical Antenna using Microwave ZST Ceramics." Journal of the Korean Ceramic Society 45, no. 4 (2008): 208–13. http://dx.doi.org/10.4191/kcers.2008.45.4.208.

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26

Innes, Graeme. "Higher-order structural constraints for improved optimization of nonuniform helical antennas." Facta universitatis - series: Electronics and Energetics 33, no. 4 (2020): 531–51. http://dx.doi.org/10.2298/fuee2004531i.

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The objective is to improve the linear constraints for optimizing the helical structure (radius and pitch of the conductor winding) of nonuniform helical antennas for desired characteristics such as signal gain or bandwidth. Presented below are equations that allow various higher-order structural constraints to be used in such optimizations. Their efficacy is demonstrated by analogy, using data for a fully optimized Yagi-Uda antenna, before being applied to data available for helical designs. The comparisons confirm the general validity of the higher-order equations to model some of the most a

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27

Angelo Mari C. Paredes and Edwin R. Arboleda. "Antennas for Underwater Wireless Sensor Networks (UWSNs): Reviewing the challenges of underwater communication." International Journal of Science and Research Archive 12, no. 1 (2024): 2600–2607. http://dx.doi.org/10.30574/ijsra.2024.12.1.1135.

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Underwater communication for Underwater Wireless Sensor Networks (UWSNs) faces challenges due to the unique underwater environment. This review explores these challenges (attenuation, multipath propagation, limited bandwidth) across acoustic, optical, and radio frequency (RF) communication channels. It highlights how innovative antenna designs are crucial to mitigate these limitations and enable efficient data transmission. The review analyzes monopole, dipole, and helical antennas, discussing their trade-offs in radiation pattern, efficiency, and mitigating multipath effects. Advancements in

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28

Tang, Xihui, Botao Feng, and Yunliang Long. "The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns." International Journal of Antennas and Propagation 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/5950472.

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A wideband strip-helical antenna with 1.1 turns is analyzed numerically and experimentally. By replacing the traditional wire helix with wide metallic strip, the forward traveling current on the strip helix with about one turn smoothly decays to the minimum value at the open end of the helix. Therefore, the strip helix can excite a wideband circular polarization (CP) wave with 50-ohm impedance matching. The proposed antenna is printed on a hollow-cylinder with a substrate relative permittivity ofεr=2.2and a thickness ofh=0.5 mm. A 50 Ω coaxial cable is directly connected to excite the strip-he

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29

YAŞLI, Ahmet, and Sadık ÜLKER. "Microwave Energy Harvesting With No Extra Receiving Antenna." Afyon Kocatepe University Journal of Sciences and Engineering 23, no. 5 (2023): 1197–205. http://dx.doi.org/10.35414/akufemubid.1206783.

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This paper addresses different cases of radio frequency harvesting using different antenna types as  transmitting antenna but using just the lead of the capacitor as the wire antenna at the receiving end  with a voltage rectifier circuit. Different antennas were used in the input and with two different  rectification circuits the conversion efficiencies were studied accordingly. For a source of log periodic  antenna, without any antenna, 27.31% RF-DC power conversion efficiency value was obtained at the  far-field. For a source of half wavelength dipole antenna, a

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LAPČÁK, Maroš, Ľuboš OVSENÍK, Jakub ORAVEC, and Norbert ZDRAVECKÝ. "DESIGN OF ANTENNAS FOR HYBRID FSO/RF TRANSMISSION SYSTEM." Acta Electrotechnica et Informatica 21, no. 2 (2021): 28–33. http://dx.doi.org/10.15546/aeei-2021-0012.

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The purpose of this publication is to create and correctly analyse a secondary RF line for a hybrid FSO/RF system. Since we want to ensure almost 100% functionality, the design of a secondary RF line is very important. In our case, we have chosen two types of antennas. First, it was a helical antenna that achieves a high level of efficiency and much smaller dimensions compared to horn antennas. The second type was just a horn antenna. Its advantages are high efficiency, high gain, and narrow width of radiation angle. However, large disadvantages are dimensions and the price of these antennas.

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Škiljo, Maja, and Zoran Blažević. "Spherical Helices for Resonant Wireless Power Transfer." International Journal of Antennas and Propagation 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/426574.

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The capabilities of electrically small spherical helical antennas for wireless power transmission at small and moderate distances are analyzed. Influence of design on antenna radiation resistance, efficiency, and mode ratio is examined. These are the factors that, according to the theoretical considerations depicted herein, govern the maximum transfer performances. Various designs and configurations are considered for the purpose, with accent on small-size receivers suitable for implementation in powering common-sized gadgets. It is shown that spherical helix design is easily manipulated to ac

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Alkurt, Fatih Özkan. "Design and Experimental Verification of an Origami Based Compact Helix Antenna with High Gain Characteristics." Çukurova Üniversitesi Mühendislik Fakültesi Dergisi 40, no. 1 (2025): 171–77. https://doi.org/10.21605/cukurovaumfd.1665955.

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This research presents origami folding technique based novel compact helix antenna design and experimental verification. The study begins by detailing the origami technique to design and construct helical structure using a thin paper. A 1.5 mm wide copper layer is then longitudinally integrated onto the prepared paper layer which is aimed to fold to form a helical configuration. This folded helical strcure then combined a fully copper ground layer to create an helix antenna configuration that aims to operate at sub-6 GHz 5G frequencies between 4 GHz and 8 GHz. The helical structure has flexibl

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33

Armaki, S. H. Mohseni, M. Fallah, and M. Naser-Moghadasi. "Periodic tapered printed helical antenna." IEICE Electronics Express 8, no. 18 (2011): 1467–72. http://dx.doi.org/10.1587/elex.8.1467.

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34

Melyanovcky, P. A., and I. V. Popov. "Helical Antenna with Transversal Radiation." Telecommunications and Radio Engineering 60, no. 3-4 (2003): 66–70. http://dx.doi.org/10.1615/telecomradeng.v60.i34.80.

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35

Ibambe, M. G., Y. Letestu, and A. Sharaiha. "Compact printed quadrifilar helical antenna." Electronics Letters 43, no. 13 (2007): 697. http://dx.doi.org/10.1049/el:20070571.

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Hasegawa, Akin, Sumio Takahashi, Toshiaki Kikuchi, and Teruaki Fujita. "Dual‐type helical acoustic antenna." Journal of the Acoustical Society of America 84, S1 (1988): S198—S199. http://dx.doi.org/10.1121/1.2026092.

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37

Yoon, Sung-Hyun, Jea-Hun Jung, and Jea-Kwan Kim. "Open Resonant Quadrifilar Helical Antenna." Journal of Korean Institute of Communications and Information Sciences 43, no. 1 (2018): 37–44. http://dx.doi.org/10.7840/kics.2018.43.1.37.

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Letestu, Y., and A. Sharaiha. "Multiband printed quadrifilar helical antenna." Electronics Letters 46, no. 13 (2010): 885. http://dx.doi.org/10.1049/el.2010.1368.

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39

Nakamura, Kotaro, and Tetsuo Nakamura. "The helical loaded monopole antenna." Electronics and Communications in Japan (Part I: Communications) 74, no. 6 (1991): 37–41. http://dx.doi.org/10.1002/ecja.4410740604.

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40

Ghoreishian, Idine, and Ahmad Safaai-Jazi. "A new doubly helical antenna." Microwave and Optical Technology Letters 57, no. 10 (2015): 2351–55. http://dx.doi.org/10.1002/mop.29327.

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Mardani, Hossein, Neil Buchanan, Robert Cahill, and Vincent Fusco. "Impedance Matching of Axial Mode Helical Antennas." WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS 20 (May 27, 2021): 66–69. http://dx.doi.org/10.37394/23201.2021.20.8.

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In this paper, we study the input impedance characteristics of axial mode helical antennas to find an effective way for matching it to 50 Ω. The study is done on the important matching parameters such as like wire diameter and helix to the ground plane gap. It is intended that these parameters control the matching without detrimentally affecting the radiation pattern. Using transmission line theory, a simple broadband technique is proposed, which is applicable for perfect matching of antennas with similar design parameters. We provide design curves to help to choose the proper dimensions of th

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Bestugin, Aleksandr, Sergey Dvornikov, Sergey Dvornikov, and Irina Kirshina. "Study of the electrical parameters dependences of oblique log-periodic antennas on the geometric structure of their reducing elements." Journal of Physics: Conference Series 2373, no. 6 (2022): 062007. http://dx.doi.org/10.1088/1742-6596/2373/6/062007.

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Abstract Antenna systems are an integral part of any transmitter-receiver device. A broad-band and frequency-independent antenna can be created applying a principle of electrical similarity. Its essence is that the electrical parameters of antennas remain unchanged if, with a decrease or increase in wavelength n times and, accordingly, decrease or increase the linear dimensions of the antenna elements. It is very important to guarantee the constancy of the antenna-radiating element’s parameters in a sufficiently wide frequency range. Log-periodic, biconical and various types of helical antenna

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Fu, Shiqiang, Yuan Cao, Yue Zhou, and Shaojun Fang. "Improved Low-Profile Helical Antenna Design for INMARSAT Applications." International Journal of Antennas and Propagation 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/829371.

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A new low-profile variable pitch angle cylindrical helical antenna employing a copper strip as impedance transformer is proposed in this paper. Under the circumstance of a limited antenna height, the circular polarization performance of the antenna has been enhanced by changing the pitch angle and the input impedance matching has been improved by adjusting the copper strip match stub. The design method of the proposed antenna is given. The optimal antenna structure for INMARSAT application has been fabricated and measured. The measured results show that in the whole maritime satellite communic

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Kalvatynsky, O. V. "STUDY OF EFFICIENCY OF APPLICATION OF DIFFERENT ANTENNAS FOR THE RECEIVING OF SPECIAL INFORMATION FROM THE SATELLITES TYPE OF CUBESAT FOR REMOTE SENSING OF THE EARTH." Системи управління, навігації та зв’язку. Збірник наукових праць 2, no. 48 (2018): 154–57. http://dx.doi.org/10.26906/sunz.2018.2.154.

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The subject matter of the article is the radio links of the target information of the space remote sensing systems (Earth remote sensing) from spacecraft of the CUBESAT type. The aim is to study the effectiveness of receiving antennas of different diameters (5 and 12 m), namely, changing the information receiving zone. The goal: to develop a mathematical for determining the minimum reception angles of the target information, taking into account the directional pattern and the flaps of the maximum of the diagram from the direction to the receiving station. Determine the minimum angles of the re

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Xue, Yi, Xie, Wan, and Ding. "A Displacement Sensor Based on a Normal Mode Helical Antenna." Sensors 19, no. 17 (2019): 3767. http://dx.doi.org/10.3390/s19173767.

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This paper presents a passive displacement sensor based on a normal mode helical antenna. The sensor consists of an external helical antenna and an inserting dielectric rod. First, the perturbation theory is adopted to demonstrate that both the electric intensity and magnetic intensity have a noticeable gradient change within the in-and-out entrance of the helical antenna, which will cause the sensor to experience a resonant frequency shift. This phenomenon was further verified by numerical simulation using the Ansoft high frequency structure simulator (HFSS), and results show the linear corre

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Wang, Fengjuan, Jiashuo Ren, Ningmei Yu, and Yuan Yang. "A TSV-Based Helical Dual-Band Antenna." Journal of Physics: Conference Series 2419, no. 1 (2023): 012029. http://dx.doi.org/10.1088/1742-6596/2419/1/012029.

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Abstract This paper come up with a novel helical dual-band antenna that can be used in terahertz (THz) band applications. The antenna is fed by a redistribution layer (RDL), and the metal patch is formed on the top and bottom surfaces of the silicon dielectric substrate, which is connected by through-silicon via (TSV) to form a helical structure. At the same time, better impedance matching can be achieved by changing the shape of the ground plate to achieve dual-band characteristics. The simulation results presentation that the return loss of the antenna in 319GHz-339GHz and 373GHz-388GHz is l

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Constantinides, Antonios, Charalampos Kousioumari, Saam Najat, and Haris Haralambous. "Low-Profile Circularly Polarized HF Helical Phased Array: Design, Analysis, and Experimental Evaluation." Applied Sciences 14, no. 12 (2024): 5075. http://dx.doi.org/10.3390/app14125075.

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This paper presents the design, development, and performance evaluation of a compact wideband phased array active helical antenna for monitoring HF interference. Traditional multi-element HF antenna designs are often subjected to size restrictions. The front-to-back ratio of the proposed circularly polarized phased array exceeds 20 dB across the operating range. This array enables the simultaneous monitoring of vertically and horizontally polarized signals, offering a practical alternative to larger antennas, particularly in space-constrained scenarios. Through advanced low-noise amplifier des

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Zainudin, Norsiha, Tarik Abdul Latef, Narendra Kumar Aridas, Yoshihide Yamada, Kamilia Kamardin, and Nurul Huda Abd Rahman. "Increase of Input Resistance of a Normal-Mode Helical Antenna (NMHA) in Human Body Application." Sensors 20, no. 4 (2020): 958. http://dx.doi.org/10.3390/s20040958.

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In recent years, the development of healthcare monitoring devices requires high performance and compact in-body sensor antennas. A normal-mode helical antenna (NMHA) is one of the most suitable candidates that meets the criteria, especially with the ability to achieve high efficiency when the antenna structure is in self-resonant mode. It was reported that when the antenna was placed in a human body, the antenna efficiency was decreased due to the increase of its input resistance (Rin). However, the reason for Rin increase was not clarified. In this paper, the increase of Rin is ensured throug

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Zheng, Yong-Guang, Lei Jiang, Zi-Hang Zhu, et al. "A compact gain-enhanced microwave helical antenna for ⁸⁷Rb atomic experiments." Review of Scientific Instruments 93, no. 6 (2022): 064701. http://dx.doi.org/10.1063/5.0088161.

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We present a compact and gain-enhanced microwave helical antenna for manipulating ultracold 87Rb atoms coherently. By replacing the reflecting plate with an enhancing cup, the voltage standing wave ratio is reduced by 0.5 in the frequency range of 6.73–6.93 GHz, which covers the resonant frequency between the ground-state hyperfine levels of the 87Rb atom. The gain of the helical antenna is increased by 1.25–1.63 dBi, whose length is 89 mm. Applying the antenna to ultracold 87Rb atomic experiments, we achieve a Rabi frequency of 60(1) ×2 π kHz of the oscillation between the hyperfine levels.

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Zahra, Hijab, Wahaj Abbas Awan, Wael Abd Ellatif Ali, Niamat Hussain, Syed Muzahir Abbas, and Subhas Mukhopadhyay. "A 28 GHz Broadband Helical Inspired End-Fire Antenna and Its MIMO Configuration for 5G Pattern Diversity Applications." Electronics 10, no. 4 (2021): 405. http://dx.doi.org/10.3390/electronics10040405.

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In this paper, an end-fire antenna for 28 GHz broadband communications is proposed with its multiple-input-multiple-output (MIMO) configuration for pattern diversity applications in 5G communication systems and the Internet of Things (IoT). The antenna comprises a simple geometrical structure inspired by a conventional planar helical antenna without utilizing any vias. The presented antenna is printed on both sides of a very thin high-frequency substrate (Rogers RO4003, εr = 3.38) with a thickness of 0.203 mm. Moreover, its MIMO configuration is characterized by reasonable gain, high isolation

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