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Nature inspired 21 branches sneezewort/ Achillea ptarmica plant growth pattern–shaped antenna for Ku‐band applications
Author(s) -
Keshwala Ushaben,
Rawat Sanyog,
Ray Kanad
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22240
Subject(s) - radiation pattern , radiation , planar , antenna (radio) , mathematics , materials science , physics , optics , computer science , telecommunications , computer graphics (images)
This reported paper presents the design and analysis of wideband nature inspired planar antenna of 46 × 18 × 1.6 mm 3 size, designed using FR4 (Flame Retardant) substrate. The antenna patch is delineated from the growth pattern of sneezewort plant with supplementary notion of golden ratio in branching and branch width. The total number of branches in each stage follows the Fibonacci series and the branch width is calculated from the golden ratio concept. Starting from one feed line and two branches, the maximum numbers of branches are increased to 20. There has been significant enhancement in the radiation performance of proposed geometry by increasing the number of branches to 21 and by modifying ground with T‐shaped slot. The antenna covers wide impedance bandwidth of 8.2 to 16.5 GHz by possessing stable radiation characteristics.