2023-05-17
A Low-Profile Electrically Small Antenna with a Circular Slot for Global Positioning System Applications
By Katireddy Harshitha Reddy, Madhavareddy Venkata Narayana, Govardhani Immadi, P. Satyanarayana, Kolasani Rajkamal, and Ambati Navya
Progress In Electromagnetics Research C, Vol. 133, 27-38, 2023
doi:10.2528/PIERC23021601
Abstract
A flexible, planar electrically small antenna (ESA) with omni directional radiation pattern is designed and fabricated for GPS and WLAN applications resonating at 1.5 GHz and 3.7 GHz. The design consists of a circular loop attached with 3 rectangular bars, and it is fed by a 50 Ω feed line. The circular loop in the antenna provides impedance matching. Generally, these electrically small antennas have narrow bandwidth. Here the antenna is fabricated on a polyimide substrate having a thickness of 0.1 mm, εr of 3.4 mm, and it occupies a size of 38 mm x 34 mm. Electrically small antenna is designed at 1.5 GHz, 3.7 GHz, and the parameters that are measured are S11, VSWR, ka values, quality factor, and radiation patterns.
Citation
Katireddy Harshitha Reddy, Madhavareddy Venkata Narayana, Govardhani Immadi, P. Satyanarayana, Kolasani Rajkamal, and Ambati Navya, "A Low-Profile Electrically Small Antenna with a Circular Slot for Global Positioning System Applications,"
Progress In Electromagnetics Research C, Vol. 133, 27-38, 2023.
doi:10.2528/PIERC23021601
http://test.jpier.org/PIERC/pier.php?paper=23021601
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