volume | PIER Journals

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, ε_r 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.

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Dr. Katireddy Harshitha Reddy

Dr. Madhavareddy Venkata Narayana

Dr. Govardhani Immadi

Dr. Penke Satyanarayana

Dr. Kolasani Rajkamal

Ms. Ambati Navya