REFERENCES
- G. Kumar, and K. P. Ray. Broadband Microstrip Antennas. Norwood: Artech House, 2003.
- K. L. Wong. Compact and Broadband Microstrip Antennas. New York: John Wiley & Sons, 2002.
- C. Wood, “Analysis of microstrip circular patch antennas,” IEE Proc. H Microw. Optics Antennas, Vol. 128, no. 2, pp. 69–76, Apr. 1981. doi: https://doi.org/10.1049/ip-h-1.1981.0012
- A. A. Kishk and L. Shafai, “The effect of various parameters of circular microstrip antennas on their radiation efficiency and the mode excitation,” IEEE Trans. Antennas Propag., Vol. 34, no. 8, pp. 969–76, Aug. 1986. doi: https://doi.org/10.1109/TAP.1986.1143939
- L. Shafai and A. A. Kishk, “Analysis of circular microstrip antennas,” Handbook of Microstrip Antennas, 1st ed. Vol. 1, J. R. James and P. S. Hall, Ed. London: PeterPeregrinus Ltd., pp. 45–85, 1989, ch. 2.
- A. K. Bhattacharyya, “Effects of finite ground plane on the radiation characteristics of a circular patch antenna,” IEEE Trans. Antennas Propag., Vol. 38, no. 2, pp. 152–15, Feb. 1990. doi: https://doi.org/10.1109/8.45116
- J. D. Mahony, “Approximate expressions for the directivity of a circular microstrip-patch antenna,” IEEE Antennas Propag. Mag., Vol. 43, no. 4, pp. 88–90, Aug. 2001. doi: https://doi.org/10.1109/74.951561
- D. Schaubert, F. G. Farrar, A. Sindoris, and S. T. Hayes, “Microstrip antennas with frequency agility and polarization diversity,” IEEE Trans. Antennas Propag., Vol. 29, no. 1, pp. 118–23, Jan. 1981. doi: https://doi.org/10.1109/TAP.1981.1142546
- S. K. Satpathy, K. P. Ray, and G. Kumar, “Compact shorted variations of circular microstrip antennas,” Electron. Lett., Vol. 34, no. 2, pp. 137–38, Jan. 1998. doi: https://doi.org/10.1049/el:19980203
- S. K. Satpathy, K. P. Ray, and G. Kumar, “Compact microstrip antenna using single shorting post,” in Proceedings of NSAML, March 1998, pp. 69–72.
- K. P. Ray, “Broadband, dual frequency and compact microstrip antennas,” Ph.D. dissertation, Department of Elec. Eng., Indian Institute of Technology, Mumbai, 1999.
- T. Chakravarty and A. De, “Design of tunable modes and dual-band circular patch antenna using shorting posts,” In IEE Proc.-Microw. Antennas Propag., Vol. 146, no. 3. pp. 224–8, Jun. 1999. doi: https://doi.org/10.1049/ip-map:19990629
- T. Chakravarty, and A. De, “Investigation of modes tunable circular patch radiator with arbitrarily located shorting posts,” IETE Tech. Rev., Vol. 16, no. 1, pp. 109–11, Feb. 1999. doi: https://doi.org/10.1080/02564602.1999.11416812
- X. Zhang, and L. Zhu, “Gain-enhanced patch antennas with loading of shorting pins,” IEEE Trans. Antennas Propag., Vol. 64, no. 8, pp. 3310–8, Aug. 2016. doi: https://doi.org/10.1109/TAP.2016.2573860
- T. Chakravarty, S. K. Sanyal, and A. De, “Compact and tunable circular microstrip patch using post-varactor loading,” IETE Tech. Rev., Vol. 18, no. 2&3, pp. 153–7, Mar.–June 2001.
- S. F. Mohmoud and R. K. Deeb, “Characteristics of a circular microstrip patch antenna with a shorting post,” J. Electromagn. Waves Appl., Vol. 16, no. 2, pp. 213–26, Apr. 2002. doi: https://doi.org/10.1163/156939302X00859
- A. F. Almutairi, S. F. Mohmoud, and N. A. Aljuhaishi, “Wide-band circular patch antenna with 2-pin loading for wireless communications,” J. Electromagn. Waves Appl., Vol. 19, no. 6, pp. 839–51, Apr. 2005. doi: https://doi.org/10.1163/1569393054069091
- P. Juyal and L. Shafai, “A novel high gain printed antenna configuration based on TM12 mode of circular disc,” IEEE Trans. Antennas Propag., Vol. 64, no. 2, pp. 790–6, Feb. 2016. doi: https://doi.org/10.1109/TAP.2015.2506724
- P. Juyal, and L. Shafai, “Gain enhancement in circular microstrip antenna via linear superposition of higher zeros,” IEEE Antennas Wireless Propag. Lett., Vol. 16, pp. 896–9, Sep. 2017. doi: https://doi.org/10.1109/LAWP.2016.2613996
- HyperLynx 3D EM Design System. Mentor Graphics Corp, Ver. 15.2, Wilsonville, USA, 2012.
- J. Huang, “Circularly polarized conical pattern from circular microstrip antennas,” IEEE Trans. Antenna Propag., Vol. 32, no. 9, pp. 991–4, Sep. 1984. doi: https://doi.org/10.1109/TAP.1984.1143455
- E. B. Rosa, “The self and mutual-inductances of linear conductors,” Bull. Natl. Bur. Stand., Vol. 4, no. 2, pp. 301–5, 1908. doi: https://doi.org/10.6028/bulletin.088
- K. P. Ray, V. Sevani, and A. A. Deshmukh, “Compact gap-coupled microstrip antennas for broadband and dual frequency operations,” Int. J. Microwave Opt. Technol. Lett., Vol. 2, pp. 193–202, 2007.
- S. M. Rathod, R. N. Awale, and K. P. Ray, “Shorted circular microstrip antennas for 50 Ω microstrip line feed with very low cross polarization”, Prog. Electromagn. Res Lett., Vol. 74, pp. 91–8, 2018. doi: https://doi.org/10.2528/PIERL18010935