CPW-Fed Penta Band Monopole Antenna for Multiservice Wireless Applications

Raj  Kumar; Yedukondalu  Kamatham; Samineni  Peddakrishna; Ajitha  Gaddam

doi:10.46604/aiti.2021.8434

Authors

Raj Kumar Department of Electronics and Communication Engineering, Shri Jagdishprasad Jhabarmal Tibrewala University, Rajasthan, India; Department of Electronics and Communication Engineering, Swami Vivekananda Institute of Technology, Secunderabad, India
Yedukondalu Kamatham Department of Electronics and Communication Engineering, CVR College of Engineering, Hyderabad, India
Samineni Peddakrishna School of Electronics Engineering, VIT-AP University, Amaravati, India
Ajitha Gaddam Department of Electronics and Communication Engineering, Institute of Aeronautical Engineering, Hyderabad, India

DOI:

https://doi.org/10.46604/aiti.2021.8434

Keywords:

microstrip antenna, penta band, WLAN, bluetooth, slot, monopole

Abstract

A compact triple T-shaped stub with meander loaded strip antenna for penta band applications is proposed. The rectangular patch antenna with meandered and open-ended slot cuts is utilized to realize four operating bands at 2.45 GHz, 3.1 GHz, 5.3 GHz, and 6.5 GHz with an impedance bandwidth of 400 MHz (2.15-2.550 GHz), 1000 MHz (2.7-3.7 GHz), 200 MHz (5.4-5.6 GHz), and 200 MHz (6.4-6.6 GHz), respectively. For an additional resonance frequency, the length of the central T-shaped stub is slightly modified which causes the variation in the current distribution. As a result, the resonance frequency of 5.5 GHz is divided into two resonance frequency bands which are operating at 5.25 GHz and 5.85 GHz with an impedance bandwidth of 100 MHz (5.25-5.35 GHz) and 200 MHz (5.75-5.95 GHz), respectively. Furthermore, a parametric reflection coefficient and surface current distribution analysis is carried out to understand the strip and slot behavior at resonance frequency bands. Finally, a prototype is fabricated and its reflection coefficient, gain, and radiation pattern are measured. The experimental result shows that the proposed antenna is reliable for penta band applications.

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