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Design of a novel compact modified‐circular printed antenna for high data rate wireless sensor networks
Author(s) -
Chinnasamy Mohan,
Sundarsingh Esther Florence,
Sankaran Priyadharshini
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.22375
Subject(s) - omnidirectional antenna , radiation pattern , microstrip antenna , patch antenna , antenna (radio) , coaxial antenna , miniaturization , ground plane , optics , acoustics , physics , materials science , computer science , electrical engineering , telecommunications , engineering
This paper presents a novel compact circular patch Ultrawideband (UWB) antenna for sensor node applications. The microstrip‐fed low‐profile antenna comprises an elliptical ring slot, two crescent‐shaped slots and two dumbbell‐shaped slots in feedline. The antenna miniaturization is achieved by a novel combination of an elliptical ring slot, two crescent‐shaped slots in circular patch. The proposed prototype has been fabricated on inexpensive FR4 substrate and the relative permittivity is (ε r = 4.3) with 1.6 mm thickness. The overall size of the proposed miniaturized antenna is about (0.1 λ r × 0.15 λ r ), where λ r is the resonating wavelength of the lowest UWB frequency (ie, 3.1 GHz). The measured radiation performances of the proposed antenna are nearly an omnidirectional pattern in H‐plane and bidirectional pattern in E‐plane for all the frequencies in the whole UWB band. The development process of the antenna, radiation properties and group delay is completely analyzed and discussed.