Design and development of printed dipole antenna with array configuration for GPS application

2016 ◽  
Author(s):  
Swetha Amit ◽  
S L Nisha
Keyword(s):  
Dipole Antenna ◽  
Design And Development ◽  
Array Configuration

DESIGN AND DEVELOPMENT OF COMB-SHAPED ME DIPOLE ANTENNA

2020 ◽  
Vol 79 (4) ◽  
pp. 283-290
Author(s):  
Neetu ◽  
P. Jyothirlatha ◽  
P. Seth
Keyword(s):  
Dipole Antenna ◽  
Design And Development

Design and development of Dipole Array Antenna for Wi-Fi Applications

2021 ◽  
Author(s):  
Malaisamy K ◽  
Santhi M ◽  
Robinson S ◽  
Wasim Mohd
Keyword(s):  
High Gain ◽  
Primary Objective ◽  
Array Antenna ◽  
Strip Line ◽  
Design And Development ◽  
Array Configuration ◽  
Feeding Technique ◽  
Tan Δ ◽  
Alternative Feeding ◽  
Coaxial Probe

Abstract This paper illustrates the design and development of the Series-fed Two Dipole Array antenna (STDA) for Wi-Fi applications. The proposed antenna consists of two dipole elements of different lengths, which are serially joined by the Coplanar Strip Line (CPS). The design incorporates an alternative feeding mechanism of coaxial/probe feeding technique with balun. The primary objective of this paper is to develop the high gain antenna with array configuration for Wi-Fi applications. The performance parameters of an antenna such as return loss, radiation pattern, gain and directivity are investigated for STDA array configurations. It operates at 2.4 GHz and produces a high gain of 21.6 dBi with reflector. The STDA antenna has been analyzed for different array configurations in the formation of 1×4, 1×8, 2×8 STDA array formation in order to improve the overall gain. The proposed antenna is fabricated an FR4 substrate with a dielectric constant of 4.4 and Loss tangent (tan δ) of 0.007 with the thickness of 1.6 mm. The size of an antenna is about 105 mm × 80 mm. The proposed antenna meets the requirements of an antenna which is operating at 2.4GHz with a bandwidth of 200 MHz; hence, it is found to be suitable for Wi-Fi applications.

Design and development of cross dipole antenna for satellite applications

Frequenz ◽  
2020 ◽  
Vol 74 (7-8) ◽  
pp. 229-237
Author(s):  
Malaisamy K ◽  
Santhi M ◽  
Robinson S ◽  
Mohd Wasim ◽  
Murugapandiyan P
Keyword(s):  
Return Loss ◽  
Satellite Communication ◽  
High Gain ◽  
Dipole Antenna ◽  
Primary Objective ◽  
Array Configuration ◽  
Feeding Technique ◽  
Satellite Applications ◽  
Alternative Feeding ◽  
Ku Band

AbstractIn this paper, a cross dipole antenna is proposed, designed, and developed for satellite communication applications. The design incorporates an alternative feeding mechanism of the coaxial/probe feeding technique with balun. The primary objective of this paper is to develop the high gain antenna with an array configuration for satellite communication. The performance parameters of an antenna such as return loss, radiation pattern, gain and directivity are investigated for cross dipole antenna and 1 × 2, 1 × 4 array configurations. It operates for Ku band (12–18 GHz) and produces a high gain with low return loss. The proposed antenna has five useful bands and exhibits a peak directive gain of 13.21 dBi at 12.4 GHz with a bandwidth of 0.89 GHz. Additional bands are also offering a gain of 11.23 dBi with a bandwidth of 0.849 GHz at 10.6 GHz, 6.59 dBi with a bandwidth of 0.6 GHz at 11.5 GHz, 12.13 dBi with a bandwidth of 1.37 GHz at 14.2 GHz and 10.47 dBi with a bandwidth of 1.3 GHz at 15.8 GHz. The cross dipole antenna is analyzed for 1 × 2, 1 × 4 array configuration in order to improve the overall gain. The proposed antenna is fabricated on FR4 substrate with a dielectric constant of 4.4 and loss tangent (tan δ) of 0.007 with the thickness of 1.6 mm. The size of the proposed antenna is 72 × 84 mm. The proposed antenna meets the requirements of an antenna which is operating at Ku band; hence, it is found to be suitable for real time applications.

scholarly journals A 16-Channel Dipole Antenna Array for Human Head Magnetic Resonance Imaging at 10.5 Tesla

Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7250
Author(s):  
Myung Kyun Woo ◽  
Lance DelaBarre ◽  
Matt Waks ◽  
Jerahmie Radder ◽  
Uk-Su Choi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Antenna Array ◽  
Antenna Arrays ◽  
Human Head ◽  
Biological Tissues ◽  
Dipole Antenna ◽  
Human Model ◽  
Resonance Imaging ◽  
Array Configuration

For ultra-high field and frequency (UHF) magnetic resonance imaging (MRI), the associated short wavelengths in biological tissues leads to penetration and homogeneity issues at 10.5 tesla (T) and require antenna transmit arrays for efficiently generated 447 MHz B1+ fields (defined as the transmit radiofrequency (RF) magnetic field generated by RF coils). Previously, we evaluated a 16-channel combined loop + dipole antenna (LD) 10.5 T head array. While the LD array configuration did not achieve the desired B1+ efficiency, it showed an improvement of the specific absorption rate (SAR) efficiency compared to the separate 8-channel loop and separate 8-channel dipole antenna arrays at 10.5 T. Here we compare a 16-channel dipole antenna array with a 16-channel LD array of the same dimensions to evaluate B1+ efficiency, 10 g SAR, and SAR efficiency. The 16-channel dipole antenna array achieved a 24% increase in B1+ efficiency in the electromagnetic simulation and MR experiment compared to the LD array, as measured in the central region of a phantom. Based on the simulation results with a human model, we estimate that a 16-channel dipole antenna array for human brain imaging can increase B1+ efficiency by 15% with similar SAR efficiency compared to a 16-channel LD head array.

A case study on use of personas in design and development of an audit management system

2007 ◽  
Author(s):  
Pallavi Dharwada ◽  
Joel S. Greenstein ◽  
Anand K. Gramopadhye ◽  
Steve J. Davis
Keyword(s):  
Management System ◽  
Design And Development ◽  
Audit Management
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