Automobile conformal antenna design using non-dominated sorting genetic algorithm (NSGA)

2006 ◽  
Vol 153 (6) ◽  
pp. 579 ◽  
Author(s):  
Y. Kim ◽  
E.K. Walton
2017 ◽  
Vol 6 (3) ◽  
pp. 64
Author(s):  
R. Sahoo ◽  
D. Vakula

In this paper, a novel wideband conformal fractal antenna is proposed for GPS application. The concepts of fractal and partial ground are used in conformal antenna design for miniaturization and bandwidth enhancement. It comprises of Minkowski fractal patch on a substrate of Rogers RT/duroid 5880 with permittivity 2.2 and thickness of 0.787mm with microstrip inset feed. The proposed conformal antenna has a patch dimension about 0.39λmm×0.39λmm, and partial ground plane size is 29mm×90mm.The proposed antenna is simulated, fabricated and measured for both planar and conformal geometry, with good agreement between measurements and simulations. The size of the fractal patch is reduced approximately by 32% as compared with conventional patch. It is observed that the conformal antenna exhibits a fractional bandwidth(for the definition of -10dB) of 43.72% operating from 1.09 to 1.7GHz, which is useful for L1(1.56-1.58GHz), L2(1.21-1.23GHz), L3(1.37-1.39GHz), L4(1.36-1.38GHz), and L5(1.16-1.18 GHz) in GPS and Galileo frequencies: E=1589.742MHz(4MHzbandwidth), E2=1561. 098MHz(4MHzbandwidth), E5a=1176.45MHz(=L5),E5b= 1207.14MHz, and E6=1278.75MHz(40MHz bandwidth). The radiation pattern exhibits an omnidirectional pattern, and gain of proposed antenna is 2.3dBi to 3.5dBi within operating frequency range.


2002 ◽  
Vol 35 (3) ◽  
pp. 184-186 ◽  
Author(s):  
Filiberto Bilotti ◽  
Francesco Castellana ◽  
Lucio Vegni

2017 ◽  
Vol 2017 (1) ◽  
pp. 000608-000612
Author(s):  
John Doroshewitz ◽  
Amanpreet Kaur ◽  
Jeffrey Nanzer ◽  
Premjeet Chahal

Abstract A Quick Response (QR) Code style antenna is presented. Such an antenna can provide two-level authentication, both optically through the current QR technology, plus a radio frequency (RF) signature from microstrip patch antenna designed from the QR signature using copper patterning. The antenna is designed through the pixilation of a patch antenna where conductor is present in the dark regions of the optical QR code. The QR based antenna design has a unique frequency and radiation signature and can be used for RF authentication of products. The design process for the pixilation is presented as well as fabrication and measured results of a QR code antenna design. The possibility of using a Genetic Algorithm to create a “library” of acceptable antenna results in accordance with the QR data it represents is also discussed.


2013 ◽  
Vol 49 (5) ◽  
pp. 1889-1892 ◽  
Author(s):  
Yuki Sato ◽  
Felipe Campelo ◽  
Hajime Igarashi

2016 ◽  
Vol 52 (3) ◽  
pp. 1-4 ◽  
Author(s):  
Kyung Choi ◽  
Dong-Hyeok Jang ◽  
Seong-In Kang ◽  
Jeong-Hyeok Lee ◽  
Tae-Kyung Chung ◽  
...  

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