Dual-frequency microstrip patch antenna with modified Koch fractal geometry based on genetic algorithm

2010 ◽  
Author(s):  
Zahra Adelpour ◽  
Farzad Mohajeri ◽  
Mojtaba Sadeghi
Keyword(s):  
Genetic Algorithm ◽  
Fractal Geometry ◽  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Dual Frequency ◽  
Microstrip Patch ◽  
Koch Fractal

Multi-factor product authentication using integrated Quick Response (QR) code pixelated antenna

2017 ◽  
Vol 2017 (1) ◽  
pp. 000608-000612
Author(s):  
John Doroshewitz ◽  
Amanpreet Kaur ◽  
Jeffrey Nanzer ◽  
Premjeet Chahal
Keyword(s):  
Genetic Algorithm ◽  
Radio Frequency ◽  
Design Process ◽  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Qr Code ◽  
Quick Response ◽  
Microstrip Patch

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.

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