Open AccessSingle feed circularly polarized crescent-cut and extended corner square microstrip antennas for wireless biotelemetry
Author(s) -
Mehdi Hasan Chowdhury,
Quazi Delwar Hossain,
Md. Azad Hossain,
Ray C. C. Cheung
Publication year - 2019
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v9i3.pp1902-1909
Subject(s) - biotelemetry , microstrip antenna , return loss , circular polarization , microstrip , electrical engineering , wireless , reconfigurable antenna , directional antenna , ism band , computer science , bandwidth (computing) , omnidirectional antenna , slot antenna , patch antenna , electronic engineering , physics , antenna (radio) , telecommunications , engineering , antenna efficiency , telemetry
In this paper, the development of two novel circularly polarized microstrip antennas is thoroughly explained. These antennas are fed by coaxial feeding technique. One of the primary objectives of the proposed work is to tune the antennas to work in ISM band. This frequency band refers to the internationally recognized radio frequency bandwidth which is to be used explicitly for Industrial, Scientific, and Medical applications. Therefore, these antennas would be suitable to use in the field of wireless biotelemetry. Two new antenna design techniques have been introduced to produce circular polarization, and details of these schemes are described. The proposed microstrip antennas are designed and simulated on Advanced Design System (ADS) software. The return loss of the proposed crescent-cut antenna is -19.3 dB at the operating frequency. The extended corner antenna has the return loss of -29.3 dB at the tuned frequency. The simulation results are also presented and discussed.