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Gain enhancement over a wideband in CPW-fed compact circular patch antenna

Published online by Cambridge University Press:  13 December 2013

Kirti Vyas ,
Garima Sanyal ,
Arun Kumar Sharma  and
Pramod Kumar Singhal
Kirti Vyas*
Affiliation:
Bhagwant University, Ajmer, Rajasthan, India. Phone: +91 9929164029 Department of Electronics and Communication Engineering, Arya College of Engineering and I.T., Kukas, Jaipur, India
Garima Sanyal
Affiliation:
Department of Electronics and Communication Engineering, Arya College of Engineering and I.T., Kukas, Jaipur, India
Arun Kumar Sharma
Affiliation:
Department of Electronics and Communication Engineering, Arya College of Engineering and I.T., Kukas, Jaipur, India
Pramod Kumar Singhal
Affiliation:
Department of Electronics and Communication Engineering, Madhav Institute of Technology and Science, Gwalior, India
*
Corresponding author: K. Vyas Email: [email protected]
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Abstract

The present paper reports the gain enhancement over a wideband (12–15 GHz) in a coplanar waveguide (CPW)-fed circular patch antenna with circular defected ground structure (DGS). Two compact coplanar circular antennas have been designed and fabricated with and without DGS of same volume 18 × 20 × 1.6 mm3, built over FR4-epoxy substrate (εr = 4.4). Gain enhancement has been achieved by optimizing the current distribution with suitable DGS. For this purpose, structural designs have been optimized by parametric simulations in HFSS and CST MWS. Both the antennas can perform well in variety of wireless communication including WLAN IEEE 802.11 g/a (5.15–5.35 GHz and 5.725–5.825 GHz) and X-band applications including short range, tracking, missile guidance, and radar communication that ranges roughly from 8.29 to 11.4 GHz. The measured experimental results show that impedance bandwidth (S11 < −10 dB) of antenna with DGS is 100%. The antenna with DGS offers gain improvement by 2.7 dB for 13 GHz and 7 dB for 14 GHz. The performance of antenna with DGS is compared to conventional CPW-fed circular patch antenna (without DGS) in terms of reflection coefficient, radiation characteristics, and gain.

Keywords

Antenna designModeling and measurementsAntennas and propagation for wireless systems
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 6 , Issue 5: MEMSWAVE Symposium 2013 , October 2014 , pp. 497 - 503
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

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References

REFERENCES

[1]Abdelaziz, A.A.: Bandwidth enhancement of microstrip antenna. Progr. Electromagn. Res., 63 (2006), 311–317.Google Scholar
[2]Nishiyama, E.; Aikawa, M.: FDTD analysis of stacked microstrip antenna with high gain. Progr. Electromagn. Res., 33 (2001), 29–43.Google Scholar
[3]Ali, A. et al. : W-shaped enhanced bandwidth patch antenna for wireless communication. Wirel. Pers. Commun., 43 (2007), 1257–1265.Google Scholar
[4]Abbaspour, M.; Hassani, H.R.: Wideband star shaped microstrip patch antenna. Progr. Electromagn. Res. Lett., 1 (2008), 61–68.Google Scholar
[5]Ansari, J.A.; Ram, R.B.: Broadband stacked U-slot microstrip patch antenna. Progr. Electromagn. Res. Lett., 4 (2008), 17–24.Google Scholar
[6]Liu, H.; Li, Z.; Sun, X.; Mao, J.: Harmonic suppression with photonic bandgap and defected ground structure for a microstrip patch antenna. IEEE Microw. Wirel. Compon. Lett., 15 (2) (2005), 55–56.Google Scholar
[7]Lin, X.-C.; Wang, L.-T.: A wideband CPW-fed patch antenna with defective ground plane. in IEEE Antennas Propag. Soc. Int. Symp., vol. 4 (2004), 3717–3720.Google Scholar
[8]Weng, L.H.; Guo, Y.C.; Shi, X.W.; Chen, X.Q.: An overview on defected ground structure. Progr. Electromagn. Res. B, 7 (2008), 173–189.Google Scholar
[9]Dong, L.; Zhang, Z.; Li, W.; Fu, G.: A compact CPW-fed monopole antenna with triple bands for Wlan/Wimax applications. Progr. Electromagn. Res. Lett., 39 (2013), 103–113.Google Scholar
[10]Lin, X.C.; Yu, C.-C.: A dual-band CPW-fed inductive slot-monopole hybrid antenna. IEEE Trans. Antennas Propag., 56 (1) (2008), 282–285.Google Scholar
[11]Chen, J.-S.: Dual-frequency annular-ring slot antennas fed by CPW feed and microstrip line feed. IEEE Trans. Antennas Propag., 53 (1) (2005), 569–573.Google Scholar
[12]Jiao, J.J., Zhao, G.; Zhang, F.S.; Yuan, H.-W.; Jiao, Y.-C.: A broadband CPW-fed T-shape slot antenna. Progr. Electromagn. Res., 76 (2007), 237–242.Google Scholar
[13]Dastranj, A.; Abiri, H.: Bandwidth enhancement of printed E-shaped slot antennas fed by CPW and microstrip line. IEEE Trans. Antennas Propag., 58 (4) (2010), 1402–1407.Google Scholar
[14]Yoon, J.H.: Fabrication and measurement of rectangular ring with open ended CPW fed monopole antenna for 2.5/5.2-GHz WLAN operation. Microw. Opt. Technol. Lett., 48 (8) (2006), 1480–1483.CrossRefGoogle Scholar
[15]Yang, F.; Rahmat-Samii, Y.: A reconfigurable patch antenna using switchable slots for circular polarization diversity. IEEE Microw. Wirel. Compon. Lett., 12 (3) (2002), 96–98.CrossRefGoogle Scholar
[16]Ray, K.P.: Design aspects of printed monopole antennas for ultra-wide band applications. (Hindawi Publishing Corporation), Int. J. Antennas Propag., 2008, 713858, doi: 10.1155/2008/713858.Google Scholar
[17]Simons, R.N.: Coplanar Waveguide Circuits, Components, and Systems, John Wiley & Sons, New York, 2001.Google Scholar