volume | PIER Journals

2023-05-17

A Low-Profile Electrically Small Antenna with a Circular Slot for Global Positioning System Applications

Katireddy Harshitha Reddy,

Dr. Katireddy Harshitha Reddy

Department of ECE

KLEF

India

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Madhavareddy Venkata Narayana,

Dr. Madhavareddy Venkata Narayana

KLEF

India

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Govardhani Immadi,

Dr. Govardhani Immadi

Department of ECE

KLEF

India

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P. Satyanarayana,

Dr. P. Satyanarayana

Department of ECE

KLEF

India

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Kolasani Rajkamal,

Dr. Kolasani Rajkamal

Department of ECE

Kallam Haranadhareddy Institute of Technology

India

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Ambati Navya

Ms. Ambati Navya

Department of ECE

KLEF

India

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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, 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.

Citation

Katireddy Harshitha Reddy Madhavareddy Venkata Narayana Govardhani Immadi P. Satyanarayana Kolasani Rajkamal 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://www.jpier.org/PIERC/pier.php?paper=23021601

References

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