scholarly journals Diode‐switched thermal‐transfer printed antenna on flexible substrate

2016 ◽  
Vol 52 (4) ◽  
pp. 258-260 ◽  
Author(s):  
M. Kgwadi ◽  
T.D. Drysdale
Keyword(s):  
Flexible Substrate ◽  
Printed Antenna ◽  
Thermal Transfer

Inductance Investigation of Screen-Printed Radio Frequency Identification Antennas

2015 ◽  
Vol 748 ◽  
pp. 81-84 ◽  
Author(s):  
Ya Ling Li ◽  
Fu Yan Zhao ◽  
Lu Hai Li
Keyword(s):  
Radio Frequency Identification ◽  
Low Cost ◽  
Flexible Substrate ◽  
Core Layer ◽  
Magnetic Core ◽  
Printed Antenna ◽  
Printed Antennas ◽  
Testing Frequency ◽  
Frequency Identification ◽  
Rfid Antennas

Printed antennas fabricated using conductive ink printed on flexible substrate is low-cost and environmental friendly. The inductance and the quality factor are two important parameters for designing RFID antenna and were studied for the printed RFID antennas. The results show that the inductance is not only determined by the size of the designed RFID antenna but also related to the resistance of the printed antenna coils. The inductance increases with the increasing testing frequency, while the Q value decreases with the increasing testing frequency. The soft magnetic ink prepared with γ-Fe2O3 was used to enhance the inductance of the printed antennas with printing technology. The inductance of the printed antenna with the magnetic core layer is increased by 5.7% at 13.56 MHz.

scholarly journals Efficient Design of Flexible and Low Cost Paper-Based Inkjet-Printed Antenna

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
A. M. Mansour ◽  
N. Shehata ◽  
B. M. Hamza ◽  
M. R. M. Rizk
Keyword(s):  
Silver Nanoparticles ◽  
Low Cost ◽  
Flexible Substrate ◽  
Coplanar Waveguide ◽  
Microstrip Patch Antenna ◽  
Efficient Design ◽  
Printed Antenna ◽  
Surface Distribution ◽  
Microstrip Patch ◽  
Improved Performance

A new, efficient, flexible, and cheap antenna designed at 1.57 GHz microstrip patch antenna based on simple inkjet printer with improved performance using silver nanoparticles ink is developed. The antenna is printed on a kind of flexible substrate “glossy paper,” to offer the advantage of light and flexibility for different applications. The performance of silver nanoparticles ink has been studied through inkjet printing versus postsynthesis annealing and multilayer printing. The conductivity has been improved to have promising values up to 2 Ω/cm at temperatures up to 180°C. The surface morphology of the circuits has been analyzed using SEM with mean diameter of the nanoparticles around 100 nm, uniform surface distribution, and mean thickness of the printed layer around 230 microns. Also, a simple design of a coplanar waveguide (CPW) monopole Z-shaped antenna has been considered as an application of fabricated printed antenna using the studied silver nanoparticles ink through a cheap printer.

Thickness Effects on Microwave Magnetic Properties of FeCoBSi Films Deposited on Flexible Substrate

PIERS Online ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 105-108 ◽  
Author(s):  
Haipeng Lu ◽  
Jing Yang ◽  
Longjiang Deng
Keyword(s):  
Magnetic Properties ◽  
Flexible Substrate

Design of Compact Penta-Band Printed Antenna for WLAN/WiMAX Applications

2016 ◽  
Vol 5 (3) ◽  
pp. 10
Author(s):  
PRABHA RACHNA ◽  
TRIPATHI G.S. ◽  
VERMA SUDHANSHU ◽  
◽  
◽  
...  
Keyword(s):  
Printed Antenna

Electrical Failure and Damage Analysis of Multi-Layer Metal Films on Flexible Substrate during Cyclic Bending Deformation

2011 ◽  
Author(s):  
Byoung-Joon Kim ◽  
Hae-A-Seul Shin ◽  
In-Suk Choi ◽  
Young-Chang Joo
Keyword(s):  
Fatigue Resistance ◽  
Electrical Resistance ◽  
Metal Film ◽  
Flexible Substrate ◽  
Resistance Change ◽  
Cyclic Bending ◽  
Capping Layer ◽  
Bending Strain ◽  
Cu Film ◽  
Electrical Resistance Change

Abstract The electrical resistance Cu film on flexible substrate was investigated in cyclic bending deformation. The electrical resistance of 1 µm thick Cu film on flexible substrate increased up to 120 % after 500,000 cycles in 1.1 % tensile bending strain. Crack and extrusion were observed due to the fatigue damage of metal film. Low bending strain did not cause any damage on metal film but higher bending strain resulted in severe electrical and mechanical damage. Thinner film showed higher fatigue resistance because of the better mechanical property of thin film. Cu film with NiCr under-layer showed poorer fatigue resistance in tensile bending mode. Ni capping layer did not improve the fatigue resistance of Cu film, but Al capping layer suppressed crack formation and lowered electrical resistance change. The NiCr under layer, Ni capping layer, and Al capping layer effect on electrical resistance change of Cu film was compared with Cu only sample.

Structure and Optical Properties CdS and CdTe Films on Flexible Substrate Obtained by DC Magnetron Sputtering for Solar Cells

2017 ◽  
Vol 9 (5) ◽  
pp. 05035-1-05035-6 ◽  
Author(s):  
G. I. Kopach ◽  
◽  
R. P. Mygushchenko ◽  
G. S. Khrypunov ◽  
A. I. Dobrozhan ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Magnetron Sputtering ◽  
Flexible Substrate ◽  
Dc Magnetron Sputtering ◽  
Cdte Films
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