A modified microstrip line fed compact UWB antenna for WiMAX/ISM/WLAN and wireless communications

Abstract A novel design of compact UWB antenna is presented using a spanner shaped microstrip line. The proposed antenna consists of a rectangular patch with step slot at one of the lower edge and the defected ground plane embedded with a mirror imaged ‘P’ shaped slot. By using the novel spanner shaped feed line, the measured bandwidth of 153.22% (2.94–22.2 GHz) for VSWR ≤ 2 is achieved. The realised gain of the antenna is calculated and it is varying from −1.38 to 5.18 dB for the entire band of operation. The radiation patterns of the antenna are measured at 3.1, 6.85, 10.6 and 18 GHz which includes lower, middle and upper cut off frequencies of UWB region. The prototype of the design is fabricated and measurement is carried out in order to validate the proposed results. Also, the time domain analysis is performed to calculate the group delay and fidelity factor which are satisfying the UWB limits.

[2]  Wei Nie,et al.  A Coplanar Waveguide Fed UWB Antenna using Embedded E-shaped Structure with WLAN Band-rejection , 2018, Frequenz.

[3]  Manisha Gupta,et al.  Wheel shaped modified fractal antenna realization for wireless communications , 2017 .

[4]  Changzhi Li,et al.  A Printed Single-Layer UWB Monopole Antenna With Extended Ground Plane Stubs , 2013 .

[5]  A. K. Skrivervik,et al.  System Fidelity Factor: A New Method for Comparing UWB Antennas , 2011, IEEE Transactions on Antennas and Propagation.

[6]  Binod Kumar Kanaujia,et al.  Small-size scarecrow-shaped CPW and microstrip-line-fed UWB antennas , 2018 .

[7]  Wen-Tsan Chung,et al.  Compact Slot Antenna for UWB Applications , 2010, IEEE Antennas and Wireless Propagation Letters.

[8]  Rabindra K. Mishra,et al.  Design of compact UWB monopole planar antenna with modified partial ground plane , 2018 .

[9]  Anil Kumar Gautam,et al.  A wideband antenna with defected ground plane for WLAN/WiMAX applications , 2016 .

[10]  K. P. Ray,et al.  Wide-band planar monopole antennas , 1998 .

[11]  Muhammad Ali Babar Abbasi,et al.  Design and Development of a Compact UWB Monopole Antenna With Easily-Controllable Return Loss , 2017, IEEE Transactions on Antennas and Propagation.

[12]  Qing Huo Liu,et al.  Small planar monopole ultra-wideband antenna with reduced ground plane effect , 2015 .

[13]  Ling Hua Su,et al.  Compact slot antenna for ultra-wide band applications , 2014 .

[14]  Xiaohong Tang,et al.  Dual high-selectivity band-notched UWB monopole antenna using simple dual-mode resonator and high-impedance lines , 2016, International Journal of Microwave and Wireless Technologies.

[15]  C. Sim,et al.  A Compact Monopole Antenna for Super Wideband Applications , 2011, IEEE Antennas and Wireless Propagation Letters.

[16]  K. P. Ray.  Design Aspects of Printed Monopole Antennas for Ultra-Wide Band Applications , 2008 .

[17]  Mohammad Tariqul Islam,et al.  A high performance UWB antenna design for microwave imaging system , 2016 .

[18]  F. Mohajeri,et al.  A Compact Hexagonal Wide-Slot Antenna With Microstrip-Fed Monopole for UWB Application , 2011, IEEE Antennas and Wireless Propagation Letters.

[19]  Prabhakar Singh,et al.  Asymmetric U-shaped printed monopole antenna embedded with T-shaped strip for bluetooth, WLAN/WiMAX applications , 2018, Wirel. Networks.

[20]  Qing Huo Liu,et al.  Unidirectional planar monopole ultra-wideband antenna using wrench-shaped feeding structure , 2014 .

[21]  Jie Zhan,et al.  Compact CPW-fed antenna with two asymmetric U-shaped strips for UWB communications , 2012 .

[22]  N. Misran,et al.  Compact Tapered-Shape Slot Antenna for UWB Applications , 2011, IEEE Antennas and Wireless Propagation Letters.

[23]  Qing Huo Liu,et al.  Design of a Stub-Loaded Ring-Resonator Slot for Antenna Applications , 2015, IEEE Transactions on Antennas and Propagation.

[24]  Mohamed Ershadh.  Study of the design evolution of an antenna and its performance for UWB communications , 2015 .

[25]  Xiaohong Tang,et al.  Multi-Functional Ultra-Wideband Monopole Antenna with High Frequency Selectivity , 2018 .

[26]  Anil Kumar Gautam,et al.  A CPW‐fed hexagonal‐shape monopole‐like UWB antenna , 2013 .

[27]  Mohammad Tariqul Islam,et al.  Design of a patch antenna for ultra wide band applications , 2016 .