Broadband CPW-Fed L-Shaped Slot Antenna with T-Tuning Stub for IMT Applications

Authors

  • Kumar Singh S Department of ECE, SET, Sharda University, Greater Noida, India
  • Kavya V Department of ECE, SET, Sharda University, Greater Noida, India
  • Singh R Department of ECE, SET, Sharda University, Greater Noida, India
  • Parashar H Department of ECE, SET, Sharda University, Greater Noida, India

DOI:

https://doi.org/10.26438/ijcse/v6i3.173176

Keywords:

Coplanar Waveguides (CPW), Microwave Integrated Circuits (MICs), Monolithic Microwave Integrated Circuits (MMICs), Voltage Standing Wave Ratio (VSWR), International Mobile Telecommunication (IMT), Industrial, Scientific, Medical (ISM)

Abstract

In this paper, design and analysis of a coplanar waveguide (CPW) fed broadband square patch antenna is introduced. The proposed antenna consists of a square slot, L-shaped feed line, and with ‘T’ and inverted ‘T’ like structure which acts as tuning stubs. The Proposed antenna achieved IMT band (fc=2.8 GHz) and bandwidth of antenna is 2.51GHz from 1.25 GHz to 3.76 GHz. The structure of antenna occupies a small volume 60(L) × 60(W) × 0.76(H) mm3 and printed on FR-4 lossy (εr= 4.3) substrate. The proposed antenna is simulated using CST V.12 microwave studio, and the performance of the antenna parameters is measured and characterized in the terms of return loss, VSWR, radiation pattern and surface current density at the resonant frequencies respectively. The simulated results confirmed by the successful design, using 50Ω CPW-feed line of antenna with return loss <-10 dB and VSWR <2 dB.

References

Hai-Gao Xue , Xue-Xia Yang , “A Novel Microstrip – CPW Fed Planar Slot Antenna with Broadband and Circular Polarization.” IEEE transactions on Antennas & wireless propagation Vol. 14.2015.

Li Li,Xiaoliang Zhang,X.Yin and Le Zhou, “A compact triple –Band printed monopole antenna for WLAN Wi MAX Applications.” IEEE transactions on Antennas & wireless propagation Vol. 15 .2016.

Chien jen Wang and Chih-Hsing Chen, “CPW FED Stair – shaped slot antennas with Circular Polarisation.” IEEE transactions on Antennas & wireless propagation Vol. 57, No 8. August 2009.

K.Y.Lam, K.M. Luk, K.F Lee, H.Wong, and K.B.Ng. “Small Circularly polarized U-slot wideband patch antenna,” IEEE Antennas Wireless Propag.Lett., vol. 10, pp 87-90 , 2011.

J.S. Row, “The design of a squarer-ring slot antenna for Circular Polarization,” IEEE Trans.Antennas Propag. vol. 53, no.6, pp.1967- 1972. Jun.2005.

Horng-Dean Chen, “ Broadband CPW –FED Square slot antenna with a widening tuning stub”.IEEE transactions on Antennas & propagation Vol. 51 No. 8-2003.

Mohammad Alibakhshi – Kenari, Mohammad Naser – Moghadasi , R.A. Sadeghzadeh, Bal S.Virdee Ernesto Limiti. “Band width Extension of planar antennas using embedded slits for reliable multiband RF Communications”.International journal of electronics and communication 70(2016)910-919.

J-Y Sze, J-C, Wang and C-C Chang, “Axial –Ratio bandwidth enhancement of asymmetric – CPW – fed

circularly polarized square slot antenna.”Electronic Letters Vol .44 No 18. 28th August 2008.

Downloads

Published

2025-11-12
CITATION
DOI: 10.26438/ijcse/v6i3.173176
Published: 2025-11-12

How to Cite

[1]
S. Kumar Singh, V. Kavya, R. Singh, and H. Parashar, “Broadband CPW-Fed L-Shaped Slot Antenna with T-Tuning Stub for IMT Applications”, Int. J. Comp. Sci. Eng., vol. 6, no. 3, pp. 173–176, Nov. 2025.

Issue

Vol. 6 No. 3 (2018): IJCSE March Edition

Section

Research Article

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors contributing to this journal agree to publish their articles under the Creative Commons Attribution 4.0 International License, allowing third parties to share their work (copy, distribute, transmit) and to adapt it, under the condition that the authors are given credit and that in the event of reuse or distribution, the terms of this license are made clear.