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Compact equilateral triangular patch antenna with slot loading
Author(s) -
Dasgupta Sanghamitra,
Gupta Bhaskar,
Saha Hiranmoy
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28073
Subject(s) - equilateral triangle , microstrip antenna , patch antenna , acoustics , microwave , antenna (radio) , materials science , physics , optics , engineering , electrical engineering , mathematics , telecommunications , geometry
This article presents a comparative study on the effects of different slot shapes on the size reduction of a microstrip patch antenna. The antenna investigated consists of a triangular shaped patch using air as substrate which is primarily used for cost effectiveness and ease of fabrication. At first, the effect of slot loading on the patch antenna for compactness is investigated using circular slots and then triangular, rectangular, star shaped, and folded rectangular slots are introduced on the microstrip patch and their effects are studied too. The simulated and measured results show that the size reduction is achieved by 18.86, 27.35, 27.77, 29.8, and 43.47%, respectively, for these cases compared to a conventional triangular patch antenna operating at the same center frequency. It is worth mentioning that this communication presents maximum reduction in size reported so far for equilateral triangular patch antennas, apart from overcoming some significant drawbacks of other compact equilateral triangular patch antennas reported earlier in literature. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:268–274, 2014