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- Title
An optically transparent circularly polarized ultrahigh‐frequency radio frequency identification reader antenna.
- Authors
Potti, Devisowjanya; Mohammed, Gulam Nabi Alsath; Savarimuthu, Kirubaveni; Kanagasabai, Malathi; Yeragudipati, Venkata Ramana Rao; Jayasinghe, Jeevani W.; Udwawala, Disala N.
- Abstract
An optically transparent circularly polarized (CP) radio frequency identification (RFID) antenna is presented in this paper. The RFID antenna consists of a coplanar‐fed waveguide inverted L‐shaped monopole with a dual feeding structure. The CP wave with a bidirectional radiation pattern is obtained by feeding the radiator at both ends. The transparency of the antenna is obtained by using fluorine tin oxide (FTO) coated soda‐lime glass substrate. The proposed antenna operates at a Universal RFID frequency (800–1100 MHz) with circular polarization. The antenna has an impedance bandwidth of 300 MHz and an overlapped 3‐dB axial ratio (AR) bandwidth of 110 MHz (860–970 MHz, 12% centered at 915 MHz). It has a peak realized gain of 1.4 dBic. The antenna with the size of 100 × 100 mm2 is designed for ultrahigh‐frequency RFID reader applications.
- Subjects
COPLANAR waveguides; RADIO frequency identification systems; ANTENNAS (Electronics); GLASS; CIRCULAR polarization; GLASS coatings
- Publication
International Journal of RF & Microwave Computer-Aided Engineering, 2022, Vol 32, Issue 8, p1
- ISSN
1096-4290
- Publication type
Article
- DOI
10.1002/mmce.23225