Results 51 to 60 of about 441,378 (284)

Slot-DRA-Based Independent Dual-Band Hybrid Antenna for Wearable Biomedical Devices

open access: yesIEEE Access, 2019
A hybrid dual-band antenna, consisting of an L-shaped radiating slot and a cylindrical dielectric resonator antenna (CDRA) is proposed, simulated and experimentally validated in this paper.
Amjad Iqbal   +2 more
doaj   +1 more source

A Sierpinski Arrowhead Curve Slot Vivaldi Antenna for Microwave Head Imaging System

open access: yesIEEE Access, 2023
The development of antipodal Vivaldi antenna with a fractal slot is presented in this paper due to its promising application as an element of possible multisensory systems of head stroke imaging.
Mohamad Yafik Ihtisyam Yazid   +4 more
doaj   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

Improved Bandwidth of Microstrip Wide-Slot Antenna Using Gielis Curves

open access: yesIEEE Access
The development of a broadband printed wide-slot antenna based on Gielis curves is presented in this article. The printed wide-slot antenna can be conveniently reshaped to achieve ultra-wideband performance by using superformula.
Davood Zarifi   +2 more
doaj   +1 more source

Frequency Reconfigurable Circular Patch Antenna with an Arc-Shaped Slot Ground Controlled by PIN Diodes

open access: yesInternational Journal of Antennas and Propagation, 2017
In this paper, a compact frequency reconfigurable circular patch antenna with an arc-shaped slot loaded in the ground layer is proposed for multiband wireless communication applications.
Yao Chen   +6 more
doaj   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

open access: yesAdvanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff   +4 more
wiley   +1 more source

Design of a UWB wide-slot antenna and a hemispherical array for breast imaging [PDF]

open access: yes, 2009
A microstrip, fork fed, wide slot antenna, printed on high permittivity substrate has been developed for the transmission of ultra wide bandwidth (UWB) signals into the breast.
Gibbins, David   +5 more
core  

Modular, Textile‐Based Soft Robotic Grippers for Agricultural Produce Handling

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces textile‐based pneumatic grippers that transform simple textiles into robust bending actuators. Detailed experiments uncover how cut geometry and fabric selection shape performance. Successful handling of fragile agricultural items showcases the potential of textile robotics for safe, scalable automation in food processing and ...
Zeyu Hou   +4 more
wiley   +1 more source

Performance improvement of slot antenna with metamaterial for modern wireless communication

open access: yesResults in Engineering
A slot antenna has been widely used for multifunction in modern wireless communication technologies such as WLAN, WiMAX, IoT, and GSM. Generally, slot antennas can operate in wideband.
Maitree Tamma   +4 more
doaj   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo   +4 more
wiley   +1 more source

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