Accurate Formula to Determine Resonant Frequency of Double Sided Printed Dipole Antenna

ABSTRACT

Two arms of double-sided printed dipole antenna (DSPDA) are printed on opposite faces of a dielectric material. The antenna is fed by the printed version of two-wire parallel transmission line. This configuration has the advantages of high impedance bandwidth and low cross polarization. The width of each dipole arm is generally kept below 0.05λ₀ to achieve high cross polar discrimination. However, it is observed that, in case of DSPDA the resonating length is different from that of the conventional half-wave dipole antenna. In this paper, we have proposed a semi-empirical but accurate formula to predict the resonant frequency for a given length of DSPDA. A prototype antenna is fabricated using the proposed formula which is validated against experimental results. Measured resonant frequency of the fabricated DSPDA matches closely with the theoretical one.

KEYWORDS:

• Curve fitting
• Double sided printed dipole antenna
• Resonant frequency
• Semi-empirical formula

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

R. P. Ghosh

R. P. Ghosh has passed MSc degree in electronic science from Jadavpur University, Kolkata, India. He is currently working as an assistant professor in the Department of Electronics, Vidyasagar University, India. He has authored and as well co-authored in many papers published in journals and conference proceedings. His research interest is on microstrip antenna.

E-mail: [email protected]

K. Patra

K. Patra was born in 1988 and obtained BTech and ME degrees in telecommunication engineering (Tel. Eng) from West Bengal University of Technology and Jadavpur University in 2010 and 2012, respectively. He is currently pursuing PhD degree from the Department of Electronics and Telecommunication Engineering, Jadavpur University.

E-mail: [email protected]

B. Gupta

B. Gupta was born in Kolkata in 1960 and obtained his Bachelor of Engineering in Telecommunication Engineering, Master of Engineering in Telecommunication Engineering and Ph.D. in Engineering degrees – all from Jadavpur University in the year 1982, 1984, and1996, respectively. He is currently a professor in the Department of Electronics and Telecommunications Department, Jadavpur University where he has been teaching since 1985. He has published more than 300 research articles in refereed journals and conferences and co-authored two books on advanced research topics. He is a Senior Member of IEEE, Fellow of IETE, Fellow of Institution of Engineers (India) and Life Member of SEMCE (I). He was the Chairman of AP-MTT Joint Chapter, IEEE Calcutta Section and Chairman, Students’ Activities, IEEE Calcutta Section. His present area of interest is planar antennas, wearable antennas, photonic band gap materials and application of soft computing techniques in microwave engineering and antennas. He has been named in the 2009 edition of Marquis’ “Who's Who of the World.”

E-mail: [email protected]

S. K. Chowdhury

S. K. Chowdhury obtained his PhD degree in engineering from Jadavpur University in the year 1971. He has obtained his ME degree from Jadavpur University in the year 1968. He earned his BE degree in electronics and telecommunication engineering from Jadavpur University in the year 1964. He is a Senior Member of IEEE, Life fellow of IETE, Fellow of IE, Fellow of West Bengal Academy of Science and Technology. His area of research includes, microstrip antenna, microstrip filter, and frequency selective surfaces. He has contributed more than 50 international research articles in various journals and conferences of repute.

E-mail: [email protected]