Results 31 to 40 of about 1,217 (218)
Polarization Effect on the Performance of On-Chip Wireless Optical Point-to-Point Links
Applied Sciences, 2023 Optical on-chip wireless interconnection is an emerging technology that aims to overcome the communication bottleneck in computing architectures and in which multiple processing units are exploited for data-intensive applications.
Giovanna Calò +5 more
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A Novel L-Shaped Metalens for Ultra-Wide Band (UWB) Antenna Gain Improvement
Applied Sciences, 2023 In this work, a novel metamaterial lens (metalens) is designed and optimized to improve the radiation performance of an antipodal Vivaldi antenna for wideband applications.
Vincenza Portosi +4 more
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Switchable filtering in Vivaldi antenna
Electronics Letters, 2010 Presented is a new frequency switchable Vivaldi antenna that has a capability to operate in a wideband mode (1-3 GHz) and reconfigure to six different subbands of operations. The reconfiguration is realised by coupling and changing the effective electrical length of ring slots inserted in the structure by means of pin diode switches. To examine antenna
Hamid, Mohamad Rijal +3 more
openaire +2 more sources
Fundamental issues in antenna design for microwave medical imaging applications
, 2010 This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Fernando, Michael +7 more
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Wideband Dual-Polarized Cross-Shaped Vivaldi Antenna [PDF]
, 2015 This communication presents a wideband, dual-polarized Vivaldi antenna or tapered slot antenna with over a decade (10.7:1) of bandwidth. The dual-polarized antenna structure is achieved by inserting two orthogonal Vivaldi antennas in a cross-shaped form ...
Sánchez Escuderos, Daniel +4 more
core +1 more source
A broadband horizontally polarised omnidirectional antenna with stable radiation patterns
The Journal of Engineering, 2019 A broadband horizontally polarised omnidirectional antenna (HPOA) with stable radiation patterns is proposed. The antenna is composed of two orthogonal broadband HPOA units fed by a wideband power divider.
Zhou Lei, Cui Mantang, Lu Yangyi
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Improvement on a 2 × 2 Elements High-Gain Circularly Polarized Antenna Array
International Journal of Antennas and Propagation, 2015 A novel antipodal Vivaldi antenna with tapering serrated structure at the edges is proposed. Compared with traditional Vivaldi antennas without serrated structure, the gain of the designed antenna is significantly improved in the desired frequency band ...
C. Liu, A. Yan, C. Yu, T. Xu
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Study and Design of a Diferentially Fed Tapered Slot Antenna Array
, 2010 The results of a parametric study and design of an ultrawideband dual-polarized array of differentially-fed tapered slot antenna elements are presented. We examine arrays of bunny-ear antennas and discuss the capabilities and limitations of differential ...
Lera Acedo, Eloy de +5 more
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Semicircular Patch-Embedded Vivaldi Antenna for Miniaturized UWB Radar Sensors
Sensors, 2020 A microstrip-to-slot line-fed miniaturized Vivaldi antenna using semicircular patch embedment is proposed in this study. The conventional Vivaldi antenna has ultrawide bandwidth, but suffers from low gain in the low-frequency band.
Jungwoo Seo, Jae Hee Kim, Jungsuek Oh
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Gain and Bandwidth Enhancement of a Metamaterial Loaded Antipodal Vivaldi Antenna Fed by Substrate Integrated Waveguide [PDF]
Radioengineering, 2022 This paper proposes a novel wideband, high-gain, compact Vivaldi antenna operating in the 14.7-20.5 GHz frequency range, where the antenna is fed by the substrate integrated waveguide (SIW). A Negative Index Metamaterial (NIM) has been designed, with its
A. Bordbar, F. Mohajeri, Z. Ghorbani
doaj