Wireless power transfer system with enhanced efficiency by using frequency reconfigurable metamaterial [PDF]
Scientific Reports, 2022 The wireless power transfer (WPT) system has been widely used in various fields such as household appliances, electric vehicle charging and sensor applications. A frequency reconfigurable magnetic resonant coupling wireless power transfer (MRCWPT) system
Dongyong Shan +3 more
doaj +3 more sources
Negative Index Metamaterial-Based Frequency-Reconfigurable Textile CPW Antenna for Microwave Imaging of Breast Cancer [PDF]
Sensors, 2022 In this paper, we report the design and development of a metamaterial (MTM)-based directional coplanar waveguide (CPW)-fed reconfigurable textile antenna using radiofrequency (RF) varactor diodes for microwave breast imaging.
Kabir Hossain +5 more
doaj +3 more sources
A Conformal Frequency Reconfigurable Antenna with Multiband and Wideband Characteristics [PDF]
Sensors, 2022 A compact flexible multi-frequency antenna for smart portable and flexible devices is presented. The antenna consists of a coplanar waveguide-fed slotted circular patch connected to a rectangular secondary resonator (stub).
Niamat Hussain +5 more
doaj +3 more sources
Tuning-Range Extension Strategies for Varactor-Based Frequency-Reconfigurable Antennas [PDF]
IEEE Open Journal of Antennas and Propagation, 2023 Tuning range extension strategies for varactor-based frequency-reconfigurable planar patch antennas are presented. The three tuning range optimization methods described in the paper include co-optimization of antenna dimensions and varactor properties ...
Quoc Hung Dang +3 more
doaj +2 more sources
An L-Slot Frequency Reconfigurable Antenna Based on MEMS Technology [PDF]
Micromachines, 2023 Given the shortage of spectrum resources and the demand for communication systems of diminutive size, multi-function, and adaptive characteristics, this paper proposes an L-slot frequency reconfigurable antenna based on the MEMS switch.
Yu Chen +6 more
doaj +2 more sources
A Millimeter-Wave Frequency Reconfigurable Circularly Polarized Antenna Array [PDF]
IEEE Open Journal of Antennas and Propagation, 2021 This paper discusses the design of a high gain right-hand circularly polarized millimeter-wave frequency reconfigurable antenna array. The 16-element antenna array is designed to reconfigure its operating frequency over both K- and Ka-bands.
M. Patriotis +4 more
openalex +2 more sources
Applied Sciences, 2021 This paper presents the design and realization of a compact size multimode frequency reconfigurable antenna. The antenna consists of a triangular-shaped monopole radiator, originally inspired from a rectangular monopole antenna.
Adnan Ghaffar +8 more
doaj +2 more sources
Design and Experimental Analysis of Multiband Frequency Reconfigurable Antenna for 5G and Sub-6 GHz Wireless Communication. [PDF]
Micromachines (Basel), 2020 A low-profile frequency reconfigurable monopole antenna operating in the microwave frequency band is presented in this paper. The proposed structure is printed on Flame Retardant-4 (FR-4) substrate having relative permittivity of 4.3 and tangent loss of ...
Dildar H +9 more
europepmc +2 more sources
Compact, Frequency Reconfigurable, Printed Monopole Antenna [PDF]
International Journal of Antennas and Propagation, 2012 This paper proposes a possible implementation of a compact printed monopole antenna, useful to operate in UMTS and WLAN bands. In order to accomplish that, a miniaturization technique based on the application of chip inductors is used in conjunction with
Ricardo Gonçalves +2 more
doaj +3 more sources
Optically Controlled Bias-Free Frequency Reconfigurable Antenna [PDF]
SensorsA bias-free antenna tuning technique that eliminates conventional DC biasing networks is presented. The tuning mechanism is based on a Light-Dependent Resistor (LDR) embedded within the antenna structure.
Karam Mudhafar Younus +3 more
doaj +2 more sources