Multiband Rectangular Microstrip Antennas

Abstract

The dual-band microstrip antennas (MSAs) are realized by placing the stub on the edges of the patch or by cutting a slot at an appropriate position inside the patch. The multiband MSAs are realized by using the combination of the slot and stub. In this paper, by cutting a rectangular slot on the radiating edge and half U-slot on the nonradiating edge of a rectangular MSA, a dual- and triple-band rectangular MSA are proposed. These slots are of nearly quarter wave in length and by changing their lengths, tuning of the frequencies is realized. Also, the multiport network models for these multiband MSAs are proposed, which helps in understanding the mode distributions at slot and patch frequencies. To realize the higher gain, the suspended configurations of these multiband antennas are also proposed. A good agreement is obtained between the simulated, multiport network model, and measured results.

Keywords:

• Half U-slot
• Multiband rectangular microstrip antenna
• Multiport network model
• Rectangular slot

Additional information

Notes on contributors

Amit A. Deshmukh

Amit A. Deshmukh obtained B.E. (Electronics) from V.I.T. Pune University in 1997. He obtained M.Tech. degree in 2000 and Ph D. in 2004 from Department of Electrical Engineering, I. I. T. Bombay. His thesis work during masters and doctoral, was on Compact broadband and dual band microstrip antennas. After Ph D. he worked with Sardar Patel College of Engineering, Mukesh Patel school of Technology Management and Engineering, NMIMS (deemed University) and in I. T. Department of D. J. Sanghvi college of engineering, Mumbai, as Assistant Professor. He also with Air Tight Networks Pvt. Ltd. Pune as a Member of Technical staff in R ’ D division. Currently, he is working as Professor and Head of Electronics and Telecommunication Department in D. J. Sanghvi college of Engineering, Mumbai. He has published more than 70 research papers in various International and National Journals and Conferences. He is the on the reviewer panel of IEEE (AP Magazine), IET Microwave and Antennas Propagation and PIERS Journals. E-mail: [email protected]

K. P. Ray

K. P. Ray received an M. Tech. in microwave electronics from University of Delhi, South Campus, Delhi, India, in 1985. He joined SAMEER in Mumbai, India, in the same year and has been working on the design of different types of antenna elements and arrays, the high-power generation of RF and microwaves, and other microwave components and systems. He received a Ph.D. from the electrical engineering department of IIT in Bombay, India, in 1999; his thesis was in the field of MSAs. He has been a visiting/adjunct faculty member at IIT in Bombay, University of Mumbai, and has been deputed to GTRI in Atlanta, Georgia, under the UNDP program. He has published more than 150 research papers in journals and conference proceedings. He has co-authored a book for Artech House, USA. Currently, he is the head of the RF and microwave power system division in SAMEER. He is a reviewer of IET (UK), IJAP (USA), PIERS, IJOE (USA). He is a senior member of the IEEE, a fellow of the IETE, and a life member of the Instrument Society of India Society of EMC Engineers. E-mail: [email protected], [email protected]