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Tarek S. Abdou, Rola Saad and Salam K. Khamas
This paper presents a novel 28 GHz circularly polarized rectangular dielectric-resonator antenna (DRA) array for millimeter-wave (mmWave) off-body applications. A feed network incorporating cross slots was utilized in the rectangular DRA design to realiz...
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Xuan Viet Linh Nguyen, Tony Gerges, Pascal Bevilacqua, Jean-Marc Duchamp, Philippe Benech, Jacques Verdier, Philippe Lombard, Pangsui Usifu Linge, Fabien Mieyeville, Michel Cabrera and Bruno Allard
Harvesting of ambient radio-frequency energy is largely covered in the literature. The RF energy harvester is considered most of the time as a standalone board. There is an interest to add the RF harvesting function on an already-designed object. Polymer...
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Kazuhide Hirose, Kohei Nakamura and Hisamatsu Nakano
We analyze three transmission-line antennas using the moment method. Each line antenna comprises a coplanar feed line, loops, and straight segments connecting the loops and feedline. First, we investigate bent and branched line antennas with loops on one...
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T. Xu, Y. Lu, G. He and X. Yang
Advanced applications require transmit-array lenses featuring low profiles, covering 360° phase modulation, and, potentially, polarization conversion. Subwavelength metamaterial elements with multilayers manipulate electromagnetic waves with predesigned ...
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Abdullah G. Alharbi, Umair Rafique, Shakir Ullah, Salahuddin Khan, Syed Muzahir Abbas, Esraa Mousa Ali, Mohammad Alibakhshikenari and Mariana Dalarsson
The design of a 4 × 4 MIMO antenna for UWB communication systems is presented in this study. The single antenna element is comprised of a fractal circular ring structure backed by a modified partial ground plane having dimensions of 30 × 30 mm2" role="pr...
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Elaheh Shamoushaki, Hadi Aliakbarian
Pág. 117 - 127
In this paper, a communication link based on circular phased array antennas generating orbital angular momentum (OAM) beams at radio frequency is investigated. The presence of a null in the radiation pattern of OAM antennas is the main drawback of them. ...
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Santi Concetto Pavone, Giorgio Sebastiano Mauro, Loreto Di Donato and Gino Sorbello
In this paper, we present the design and fabrication of two dual circularly polarized (CP) patch antennas that can be profitably used as feeders for reflector systems normally adopted for satellite applications. In the first part of the manuscript, we pr...
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Xinhua Wang, Yan Yang and Jinlu Sheng
In this paper, an energy efficient power allocation scheme is proposed for a distributed massive multiple-input multiple-output (MIMO) system with a circular antenna array. Single-antenna users simultaneously transmit signal to the base station (BS) with...
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Adnan Affandi,Navin Kasim,Talal Hamdan Hamad Althebiani
In this paper a Non Uniform shaped patch antenna has been designed, simulated and optimized. Microstrip patch antennas with linear based on general requirement network have been investigated. All of the singles and arrays patch antennas are implemented i...
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Xiaoyu Lan, Liangtian Wan, Guangjie Han and Joel J. P. C. Rodrigues
The performance of traditional direction of arrival (DOA) estimation algorithm based on uniform circular array (UCA) is constrained by the array aperture. Furthermore, the array requires more antenna elements than targets, which will increase the size an...
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