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Frequency reconfigurable antenna using active capacitors
2015 IEEE 15th Mediterranean Microwave Symposium (MMS), 2015The development in wireless communication requires the use of tunable antenna adapted to the RF environment and providing optimal connectivity. In this paper, the design of frequency reconfigurable antenna is discussed. The reference square patch structure was optimized to operate at 2.45GHz. The frequency agility was achieved by integrating a varactor
Rouissi, Ines +4 more
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A Frequency- and Polarization-Reconfigurable Circular Cavity Antenna
IEEE Antennas and Wireless Propagation Letters, 2017The principle and experimental validation of a frequency- and polarization-reconfigurable antenna using switching PIN diodes is presented in this letter. The antenna is based on a center-fed circular cavity with switchable shorting vias along its outer edge.
Nguyen-Trong, N. +3 more
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Frequency reconfigurable origami quadrifilar helical antenna with reconfigurable reflector
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015This paper presents a novel origami quadrifilar helical antenna (QHA) that can reconfigure its operating frequency between 2.07 GHz, 3 GHz and 4.45 GHz. An origami reflector was designed to enhance the gain of the QHA for all the operating frequencies. Typical simulated realized gains of this origami QHA with reconfigurable reflector are 15.13 dB at 2 ...
Xueli Liu +2 more
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A frequency reconfigurable antenna based on digital microfluidics
Lab on a Chip, 2013We present a novel antenna reconfiguration mechanism relying on electrowetting based digital microfluidics to implement a frequency reconfigurable antenna operating in the X-band. The antenna built on a quartz substrate (εr = 3.9, tan δ = 0.0002) is a coplanar waveguide fed annular slot antenna, which is monolithically integrated with a microfluidic ...
Yasin, Damgaci, Bedri A, Cetiner
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On Deadlock Frequency during Dynamic Reconfiguration in NOWs
2001NOWs executing multimedia and real-time applications need to handle dynamic changes in their irregular topologies. This may be carried out in two ways: statically and dynamically. In the former, user traffic is stopped, causing latencies to increase dramatically.
Lorenzo Fernández Maimó +2 more
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Wideband Frequency-Reconfigurable Antenna for Airborne Applications
Wireless Personal Communications, 2019A reconfigurable antenna is proposed for aircraft communication application in the frequency bands of VHF/UHF/L. The aim of this design is to miniaturize the size of antenna to the extent possible and also to enhance its bandwidth. The semi-DGS technique is used to improve the antenna VSWR subsequent to size reduction.
Abbas Asghari +3 more
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Frequency reconfigurable monopole antenna
AIP Conference Proceedings, 2022K. Periyarselvam +3 more
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A Novel Frequency Reconfigurable Mode Reconfigurable Ultra-Wideband Antenna
2022 International Applied Computational Electromagnetics Society Symposium (ACES-China), 2022Chen. Guo +2 more
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Electronically Reconfigurable Frequency Filters
2016This article presents designed reconnection-less filter with electronically reconfigurable type and parameters of its transfer function. The Filter uses VDCC (Voltage Differencing Current Conveyor) and CA (Current Amplifier) as active elements. This paper includes also results of computer simulations of designed circuit.
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