Results 21 to 30 of about 2,140 (163)
Recent Advances in Flexible RF MEMS
Micromachines, 2022 Microelectromechanical systems (MEMS) that are based on flexible substrates are widely used in flexible, reconfigurable radio frequency (RF) systems, such as RF MEMS switches, phase shifters, reconfigurable antennas, phased array antennas and resonators,
Yingli Shi, Zhigang Shen
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RECONFIGURABLE CYLINDRICAL PLASMA ANTENNA [PDF]
Progress In Electromagnetics Research M, 2018 International ...
Barro, Oumar Alassane +2 more
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IEEE Open Journal of Antennas and Propagation, 2021 A compact pattern reconfigurable antenna with four radiation patterns is proposed for sub-GHz IoT applications. The antenna has two functional modes; Mode I has three uncorrelated patterns, while Mode II has electric and magnetic omnidirectional patterns.
Saeed A. Haydhah +4 more
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MEMS-Reconfigurable Metamaterials and Antenna Applications
International Journal of Antennas and Propagation, 2014 This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by microelectromechanical systems (MEMS) technology.
Tomislav Debogovic +1 more
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PATCH ANTENNA WITH RECONFIGURABLE POLARIZATION
Progress In Electromagnetics Research C, 2009 A reconfigurable patch antenna consisting of a square patch with two cross-shaped diagonal slots is presented. The proposed design approach is based on the use of two pairs of switches in order to obtain both frequency and polarization reconfigurability.
MONTI, GIUSEPPINA +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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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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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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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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