scholarly journals Restoration of antenna performance in the vicinity of metallic cylinder in implantable scenario

2020 ◽  
Vol 14 (12) ◽  
pp. 1440-1445
Author(s):  
Jeet Ghosh ◽  
Debasis Mitra
Keyword(s):  
Antenna Performance ◽  
Metallic Cylinder

Scattering effects of solar panel on Space Station Space-To-Ground (SGS) antenna performance

1992 ◽  
Author(s):  
SHIAN HWU ◽  
LARRY JOHNSON ◽  
JON FOURNET ◽  
ROBERT PANNETON ◽  
DONALD EGGERS ◽  
...  
Keyword(s):  
Space Station ◽  
Solar Panel ◽  
Antenna Performance ◽  
Scattering Effects

scholarly journals Photoconductive Antennas: Effects of Crystallographic Orientation of GaAs Substrate and the Period of Plasmon Grid on THz Antenna Performance (Ann. Phys. 8/2021)

2021 ◽  
Vol 533 (8) ◽  
pp. 2170025
Author(s):  
Arseniy M. Buryakov ◽  
Maxim S. Ivanov ◽  
Dinar I. Khusyainov ◽  
Anastasia V. Gorbatova ◽  
Vladislav R. Bilyk ◽  
...  
Keyword(s):  
Crystallographic Orientation ◽  
Gaas Substrate ◽  
Photoconductive Antennas ◽  
Antenna Performance ◽  
Thz Antenna

Investigation of e-textile dipole antenna performance based on embroidery parameters

2021 ◽  
pp. 004051752110134
Author(s):  
Daniel Agu ◽  
Rachel J Eike ◽  
Allyson Cliett ◽  
Dawn Michaelson ◽  
Rinn Cloud ◽  
...  
Keyword(s):  
Frequency Band ◽  
Impedance Matching ◽  
Dipole Antenna ◽  
Water Soluble ◽  
Wearable Sensor ◽  
Dipole Antennas ◽  
Antenna Performance ◽  
Large Production ◽  
Lower Transmission ◽  
The Ideal

E-textile antennas have the potential to be the premier on-body wearable sensor. Embroidery techniques, which can be applied to produce e-textile antennas, assist in large production volumes and fast production speeds. This paper focuses on the effects of three commonly used embroidery parameters, namely stitch type, conductive thread location, and stabilizer, on the performance of embroidered dipole antennas in order to determine the ideal embroidery combination for optimal antenna performance. Fifty-four dipole antenna samples were fabricated and measured at the industrial, scientific, and medical (ISM) frequency band of 2.45 GHz. The results of this study show that machine-embroidered antenna designs with satin stitches resonate at a lower frequency and exhibit a lower transmission gain compared with those made with contour stiches, and the conductive thread location in the bobbin location plus the use of a water-soluble stabilizer can help improve impedance matching.

scholarly journals Electromagnetic Control by Actuating Kirigami-Inspired Shape Memory Alloy: Thermally Reconfigurable Antenna application

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3026
Author(s):  
Minjae Lee ◽  
Sukwon Lee ◽  
Sungjoon Lim
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Fast Response ◽  
Electromagnetic Response ◽  
Reconfigurable Antenna ◽  
Thermal Stimulus ◽  
Shape Memory Alloy Actuator ◽  
Antenna Performance ◽  
Mechanical Transformation ◽  
Electromagnetic Control

Electromagnetic responses are generally controlled electrically or optically. However, although electrical and optical control allows fast response, they suffer from switching or tuning range limitations. This paper controls electromagnetic response by mechanical transformation. We introduce a novel kirigami-inspired structure for mechanical transformation with less strength, integrating a shape memory alloy actuator into the kirigami-inspired for mechanical transformation and hence electromagnetic control. The proposed approach was implemented for a reconfigurable antenna designed based on structural and electromagnetic analyses. The mechanical transformation was analyzed with thermal stimulus to predict the antenna geometry and electromagnetic analysis with different geometries predicted antenna performance. We numerically and experimentally verified that resonance response was thermally controlled using the kirigami-inspired antenna integrated with a shape memory alloy actuator.

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