Parylene coated waterproof washable inkjet-printed dual-band antenna on paper substrate

2018 ◽  
Vol 10 (7) ◽  
pp. 814-818 ◽  
Author(s):  
Sangkil Kim ◽  
Manos M. Tentzeris
Keyword(s):  
Monopole Antenna ◽  
Dual Band ◽  
Distilled Water ◽  
Nano Particle ◽  
Paper Substrate ◽  
Parylene C ◽  
Ambient Humidity ◽  
Dual Band Antenna ◽  
Significant Performance ◽  
Silver Nano Particle

AbstractIn this paper, the first reported waterproof inkjet-printed dual-band monopole antenna on the flexible organic paper substrate is presented. The antenna, which operates at 900 MHz and 2.4 GHz, is inkjet-printed on commercially available photopaper using conductive silver nano-particle ink. To protect it from ambient humidity, a 1 µm thick Parylene-C layer was deposited on top of the antenna. To verify its waterproof capability, the Parylene-C coated antennas were submerged in distilled water for 48 days, and no significant performance degradation was observed in its performance.

scholarly journals A Compact Dual-Band Planar Monopole Antenna Using Fractal Rings and A Y-Shaped Feeding Transmission Line

Frequenz ◽  
2019 ◽  
Vol 73 (1-2) ◽  
pp. 25-36
Author(s):  
Kahina Djafri ◽  
Mouloud Challal ◽  
Jordi Romeu
Keyword(s):  
Transmission Line ◽  
Radiation Pattern ◽  
Impedance Matching ◽  
Ground Plane ◽  
Monopole Antenna ◽  
Dual Band ◽  
Laptop Computer ◽  
Rectangular Slot ◽  
Dual Band Antenna ◽  
Band Characteristic

Abstract This paper presents a novel design approach of a compact dual-band monopole antenna with an overall size of 18.9x13x1.6mm3. The proposed antenna is composed of a fractal ring shaped patch fed by a Y-shaped transmission line on the top side of the substrate and a second fractal ring along with a U-shaped ground plane on the bottom side. The second fractal ring, identical to the radiating ring, is loaded and a rectangular slot is etched at the top side of the ground plane respectively, to achieve dual-band characteristic and improve the impedance matching. The effect of standard ground-plane (SGP) of a laptop computer is incorporated in the design; the antenna is mounted on a SGP in order to investigate its performance. The antenna covers widely the frequency bands of the WLAN 2.4 GHz (2.2–2.52 GHz) and WiMAX 3.5 GHz (3.32–4.35 GHz), and exhibits an omnidirectional radiation pattern in the H-plane and a monopole like radiation pattern in the E-plane. A good agreement between the simulated and measured results indicates that the proposed dual-band antenna design is suitable for WLAN/WiMAX applications.

COMPACT DUAL-BAND DIELECTRIC RESONATOR ANTENNA FOR 2.4/5.8 GHZ WLAN APPLICATIONS

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
A. Mataria ◽  
M. R. Kamarudin ◽  
M. Khalily
Keyword(s):  
Radio Frequency Identification ◽  
Dielectric Resonator ◽  
Local Area Network ◽  
Monopole Antenna ◽  
Dual Band ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Dielectric Resonator Antenna ◽  
Dual Band Antenna

Design of a Dual-Band Dielectric Resonator Antenna (DRA) for the radio-frequency identification (RFID) and wireless local area network (WLAN) is presented. The necessity of a compact sized dual-band antenna is to allow the manufacturers to produce small size high-performance WLAN access points. The proposed antenna consists of printed T-Shaped monopole antenna and rectangular dielectric resonator to operate simultaneously at 2.4 and 5.8 GHz. The monopole antenna was printed on a standard 1.6 mm FR4 substrate material. Impedance bandwidth for -10 dB return loss in the 2.35 GHz and 5.86 GHz center frequency reaches 0.25 GHz (2.22 GHz to 2.47 GHz) and 0.28 GHz (5.72 GHz to 6 GHz), respectively. A good agreement is achieved between measured and simulated results.  This compact antenna fed by a 50 Ω microstrip line is a low-profile and easy to manufacture antenna.

Dual Band Paper Substrate CPW Antenna for Wireless Applications

2019 ◽  
Vol 8 (9S3) ◽  
pp. 605-608
Keyword(s):  
Reflection Coefficient ◽  
Mobile Communication ◽  
Coplanar Waveguide ◽  
Dual Band ◽  
Antenna Feed ◽  
Paper Substrate ◽  
Frequency Bands ◽  
Wireless Applications

In this paper, a 15* 80 sized antenna is designed over a paper substrate to test its flexible properties. The proposed antenna feed by a grounded coplanar waveguide(GCPW) is stimulated and the measured results show the operating Dual Band of the antenna cover(3.34-3.62 GHz) and (5.92-6.24 GHz) with the reflection coefficient |S11|< -15dB.These frequency bands operate over SHF bands and hence supports Fixed Mobile Communication and WLAN applications.

Histopathological Changes during Infected Wound Healing in Cow Calves by the Use of Silver Nano Particle Gel and Povidone Iodine

2017 ◽  
Vol 12 (3) ◽  
Author(s):  
Yogendra Singh ◽  
B. P. Shukla, ◽  
Supriya Shukla, ◽  
Reshma Jain ◽  
Aditya P. Jaiswal
Keyword(s):  
Povidone Iodine ◽  
Treated Group ◽  
Time Interval ◽  
Nano Particle ◽  
Infected Wound ◽  
Histopathological Changes ◽  
Group I ◽  
Infected Wounds ◽  
Group Ii ◽  
Silver Nano Particle

The present study was conducted on 12 cow calves with infected wounds, irrespective of sex and breed, divided into two groups having 6 cow calves each. The animals of group I were treated with silver nano particle gel and the animals of group II were treated with povidone iodine dressing for 7 consecutive days. Histopathological changes were recorded at different time interval in both the groups. Studies revealed that there was marked re-epitheliazation and hyperplasia with considerable thickening of epidermis and large amount of collagen deposition in granulation tissue in group I as compared to group II. Histopatathological findings clearly suggest that the group treated with silver nano particle gel showed better and faster healing of wound as compared to povidone iodine treated group. Therefore clinical use of silver nano particle gel can be advocated for wound dressing in cow calves.

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