Results 31 to 40 of about 21,890 (197)
Design of a LP, RHCP and LHCP Polarization-Reconfigurable Holographic Antenna
IEEE Access, 2019 In this paper, the feasibility of utilizing the microwave hologram to realize the high-gain radiation with polarization agility performance is investigated, and an effective method to design the polarization-reconfigurable holographic antenna is ...
Mei Li, Ming-chun Tang, Shaoqiu Xiao
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Ultrawideband Antennas: Growth and Evolution
Micromachines, 2021 Narrowband antennas fail to radiate short pulses of nano- or picosecond length over the broader band of frequencies. Therefore, Ultrawideband (UWB) technology has gained momentum over the past couple of years as it utilizes a wide range of frequencies ...
Om Prakash Kumar +4 more
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Reconfigurable water antennas [PDF]
2014 IEEE Conference on Antenna Measurements & Applications (CAMA), 2014 This paper introduces two types of reconfigurable water antennas. One is a water-grating leaky-wave antenna and the other is a sea-water monopole antenna. The water-grating leaky-wave antenna consists of a parabolic reflecting surface-wave launcher and a periodic water-grating structure, which is designed for wide-angle beam-scanning.
Hua, Changzhou +2 more
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Cognitive Radio Transceivers: RF, Spectrum Sensing, and Learning Algorithms Review
International Journal of Antennas and Propagation, 2014 A cognitive transceiver is required to opportunistically use vacant spectrum resources licensed to primary users. Thus, it relies on a complete adaptive behavior composed of: reconfigurable radio frequency (RF) parts, enhanced spectrum sensing algorithms,
Lise Safatly +3 more
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An Overview and State of The Art in Reconfigurable Antennas with Their Applications [PDF]
ITM Web of ConferencesReconfigurable antennas represent a critical innovation in modern wireless communication, offering dynamic control over antenna parameters such as frequency, radiation pattern, and polarization. This adaptability is essential in addressing the increasing
El Aoud Salah Eddine +5 more
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Overview on Multipattern and Multipolarization Antennas for Aerospace and Terrestrial Applications
International Journal of Antennas and Propagation, 2013 In recent years, reconfigurable antennas, with the ability to radiate wave in more than one pattern and polarization, play a great role in modern telecommunication systems.
Aixin Chen +3 more
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EURASIP Journal on Wireless Communications and Networking, 2019 In this paper, we study the performance of spatial modulation based on reconfigurable antennas. Two main contributions are provided. We introduce an analytical framework to compute the error probability, which is shown to be accurate and useful for ...
Dung Nguyen Viet +5 more
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The Application of Reconfigurable Filtennas in Mobile Satellite Terminals
IEEE Access, 2020 Reconfigurable antennas play an important role in wireless communication systems as the physical and electrical properties of their structures can be modified, allowing them to be used in different applications. In this paper two reconfigurable filtennas
Luis Rodrigues +2 more
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Alexandria Engineering Journal, 2022 This paper discusses a review of frequency reconfigurability through switches for 5G applications. A new switching technique (varying values of lumped parameters) for frequency reconfiguration is analysed and validated by investigation a difference ...
M. Kamran Shereen +2 more
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Reconfigurable Antennas Based on Self-Morphing Liquid Crystalline Elastomers
IEEE Access, 2016 Pattern- and frequency-reconfigurable antennas are developed using metalized liquid crystalline elastomers that can change their geometries from flat to helical shapes.
John S. Gibson +5 more
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