Broadband Gap-coupled Shorted 60° Sectoral Microstrip Antenna

The compact variation of equilateral triangular microstrip antenna, a shorted 600 Sectoral microstrip antenna is discussed. The proximity fed shorted 600 Sectoral microstrip antenna is proposed which gives simulated and measured BW of more than 700 MHz (>60%). To increase the bandwidth and gain, gap-coupled configuration two Shorted 600 Sectoral patches is proposed. It yields simulated and measured bandwidth of more than 800 MHz (>70%). Due to shorted patch, single and gap-coupled shorted Sectoral configurations shows higher cross polar radiation pattern with gain of more than 3 dBi and more than 4 dBi, respectively over the bandwidth. Although the antenna shows higher cross polar levels, but the proposed designs in 800 to 1400 MHz frequency range can find applications in mobile communication environment wherein higher cross polar content will lead to lower signal loss Refer ences Garg, R. , Bhartia, P. , Bahl, I. , Ittipiboon, A. , 2001. Microstrip Antenna Design Handbook, Artech House, USA. Kumar, G. , Ray, K. P. , 2003. Broadband Microstrip Antennas, 1st edn. , Artech House, USA. B. Bhartia and I. J. Bahl, Microstrip Antennas, USA, 1980. Wong, K. L. , 2002. Compact and Broadband Microstrip Antennas, 1st edn. , John Wiley & sons, Inc. , New York, USA. Cock, R. T. , and Christodoulou, C. G. , Design of a two layer capacitively coupled, microstrip patch antenna element for broadband applications, IEEE Antennas Propag. Soc. Int. Symp. Dig. , vol. 2, 1987, pp. 936-939. Deshmukh, Amit A. , and Kumar, G. , Compact Broadband gap-coupled Shorted L-shaped Microstrip Antennas, Microwave and Optical Technology Letters, vol. 47, no. 6, 20th Dec. 2005, pp. 599 – 605. IE3D 12. 1, Zeland Software, Freemont, USA, 2004. Balanis, C. A. , Antenn Theory: analysis and design, 2nd edition, John Wiley & Sons Ltd. Deshmukh, Amit A. , Venkata, A. P. C. , Kulkarni, S. D. , and Nagarbowdi, S. , Artificial Neural Network Model for Suspended Equilateral Triangular Microstrip Antennas, Proceedings of ICCICT 2015, 15th 17th January 2015, Mumbai, India Index Terms Computer Science Wireless