Contents

• Objective• Literature survey• Proposing work• Conclusion• References

Objective

• ACS-fed antenna with EBG is proposed to covers the ultra wide band from 2-10Ghz

• The possibility to reduce the dimensions of antenna size

• Reduce the mutual coupling near by integrated antennas

• Also designing the UWB antenna can reflect the interference from the other existing bands.

Literature survey

• To take the tutorial overview of EBG and ACS

• Survey extended to different types of EBG like

• slotted E shape• a mirror-L shaped branch• mushroom EBG

• The antenna is composed of a simple monopole structure with a mirror-L shaped branch and two rectangular radiating strips

• has a very small size of 13.75 × 26mm2 including the ground plane.

Comparison of different ACS antennas[1]

Proposing work

• The ACS antennas to suppress the surface waves between two transmit-receive antennas with small separation

• surface waves would extract power from the total available power for direct radiation degrades

the antenna radiation propertiespolarization characteristics

• This is called the mutual coupling

• Different techniques to reduce mutual coupling between near by antennas

Cavity backed Substrate removal antennas DGS EBG• EBG structures have the ability of suppressing

surface waves propagation within the substrate

Different techniques to reduce mutual coupling[4]

Conclusion

• EBG structure have the ability of suppressing surface wave propagation

• Micro strip antennas integrated with EBG will suppress the mutual coupling

• By using mushroom like EBG structure to decrease the mutual coupling between two ACS fed antennas

References

[1] Praveen V. Naidu*and Akshay Malhotra, Design & Analysis of Miniaturized Asymmetric Coplanar Strip

Fed Antenna for Multi-Band WLAN/WiMAX Applications, Progress In Electromagnetics Research C, Vol.

57, 159–171, 2015

[2] Chen, H., Y. Z. Yin, and J. Wu, “Compact tri-band meandered ring monopole antenna with two embedded

strips for WLAN/WiMAX applications,” Progress In Electromagnetics Research Letters, Vol. 45, 63–67,

2014.

[3] Li, Y., W. Li, and Q. Ye, “A compact asymmetric coplanar strip-fed dual-band antenna for 2.4/5.8GHz

WLAN applications,” Microwave and Optical Technology Letters, Vol. 55, No. 9, 2066– 2070, 2013.

[4] lbraeem S mohamed', Mahmoud A Abdalla,” Reduced Size Mushroom Like EBG for Antennas Mutual

Coupling Reduction”, 32nd NATIONAL RADIO SCIENCE CONFERENCE, March 24-26, 2015,

[5] Q. Lei, Z. Fei, X. Ke, C. Shun-Lian, and M. Jun-Jie, "Transmit and receive isolation improvement of

antenna arrays by using EBG structures," IEEE Antennas Wireless Propagation Letter, vol. 11, pp. 93-96,

2012.

Thank You