Article

Dielectric resonator antennas—a review and general design relations for resonant frequency and bandwidth

  1. Rajesh K. Mongia†,‡,
  2. Prakash Bhartia§

Article first published online: 9 MAR 2007

DOI: 10.1002/mmce.4570040304

Issue

International Journal of Microwave and Millimeter‐Wave Computer‐Aided Engineering

International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering

Volume 4, Issue 3, pages 230–247, July 1994

Additional Information

How to Cite

Mongia, R. K. and Bhartia, P. (1994), Dielectric resonator antennas—a review and general design relations for resonant frequency and bandwidth. Int. J. Microw. Mill.-Wave Comput.-Aided Eng., 4: 230–247. doi: 10.1002/mmce.4570040304

Author Information

  1. Department of Electrical Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada

  1. †

    Communications Research Centre, 3701, Carling Avenue, P.O. Box 11490. St. H. Ottawa, ON K2H 8S2, Canada

  1. ‡

    Rajesh K. Mongia was born in New Delhi. India. in 1960. He obtained his BSc degree in Electrical Engineering from Delhi College of Engineering, University of Delhi, in 1981, and the PhD degree in Electrical Engineering from the Indian Institute of Technology (IIT), Delhi, India, in 1989. From 1981 to 1989, he worked in the Microwave Group of the Centre for Applied Research in Electronics (CARE) at IIT, Delhi. During his stay at CARE. he worked on various projects in the area of microwave and millimeter-wave circuits including the development of ferritc phase shifters for phased array radar. From 1990-1991. he was a research associate at the joint engineering college of Florida A&M University and Florida State University. Talahassee. Florida, where he worked on open resonators i n the W-band frequency range. From November 1991 to July 1993. he was a postdoctoral fellow at the University of Ottawa, Canada. where he was involved in the theoretical and experimental study of dielectric resonators. He is presently a NSERC postdoctoral fellow at the Communications Research Centre. Ottawa. where he is working on the use of dielectric resonators as antennas.

  2. §

    Prakash Bhartia was born in Calcutta, India. He obtained his BTech(Hons) degree in Electrical Engineering from the Indian Institute of Technology, Bombay, in 1966, and his MSc and PhD degrees from the University of Manitoba in Winnipeg in 1968 and 1971, respectively. He served as a research associate at the University of Manitoba from 1971 to 1973, when he joined the Faculty of Engineering at the University of Regina at Regina, Canada. In 1976 he was promoted to the rank of associate professor and served as Assisant Dean of Engineering. In September 1977 he joined the Defence Research Establishment Ottawa as a defence scientist, and in 1982 was appointed section head of the Electromagnetics Section. responsible for programs in navigation. electromagnetic compatibility, and nuclear electromagnetic pulse effects. In Fchruary 198.5 he was appointed director of Research and Development Air at National Defence Headquarters. From September 198.5 to June 1986, Dr. Bhartia attended the National Defence College of Canada at Kingston and on his rcturn was appointed director of Research and Development Communication and Space, where he served for three years. In September 1989 he was appointed director of the Underwater Acoustics Division at the Defence Research Establishment Atlantic at Dartmouth, Nova Scotia. and in July 19Y1 he returned to Ottawa as director of the Radar Division at the Defence Research Establishment, Ottawa. In July 1992. he was appointed chief of the Defence Research Establishment Atlantic. Dr. Bhartia has had considerable consulting experience with many companies while serving at the university and is the author of over 100 papers in the areas of radar. microwave and millimeter-wave circuits, components, and transmission lines. He is also the coauthor of a number of books including Microstrip Antennas (Artech House), Millimeter Wuve Engineering and Applications (Wiley), E-Plane Integrated Circuifs (Artech House), and Microwave Solid Stare Circuif Design (Wiley). He has also contributed chapters to other texts and holds a number of patents.Dr. Bhartia is a fellow of the IEEE, a fellow of the Institution of Electrical and Telecommunication Engineers, and a member of a number of technical societies. He has served and continues to serve on the editorial board or as a reviewer for many scientific journals. He has served as director of the Canadian Microelectronics Centre, on the Queen's University Engineering Advisory Council, on the Tradex Management Inc. Board, and is currently on the Board of the Canadian Centre for Marine Communications and Nova Scotia Premier's Council in Applied Science and Technology. Dr. Bhartia is also Chairman of the Scientific Committee of National Rcpresentatives for SACLANTCEN in Italy.

  1. ‡

    Rajesh K. Mongia was born in New Delhi. India. in 1960. He obtained his BSc degree in Electrical Engineering from Delhi College of Engineering, University of Delhi, in 1981, and the PhD degree in Electrical Engineering from the Indian Institute of Technology (IIT), Delhi, India, in 1989. From 1981 to 1989, he worked in the Microwave Group of the Centre for Applied Research in Electronics (CARE) at IIT, Delhi. During his stay at CARE. he worked on various projects in the area of microwave and millimeter-wave circuits including the development of ferritc phase shifters for phased array radar. From 1990-1991. he was a research associate at the joint engineering college of Florida A&M University and Florida State University. Talahassee. Florida, where he worked on open resonators i n the W-band frequency range. From November 1991 to July 1993. he was a postdoctoral fellow at the University of Ottawa, Canada. where he was involved in the theoretical and experimental study of dielectric resonators. He is presently a NSERC postdoctoral fellow at the Communications Research Centre. Ottawa. where he is working on the use of dielectric resonators as antennas.

  2. §

    Prakash Bhartia was born in Calcutta, India. He obtained his BTech(Hons) degree in Electrical Engineering from the Indian Institute of Technology, Bombay, in 1966, and his MSc and PhD degrees from the University of Manitoba in Winnipeg in 1968 and 1971, respectively. He served as a research associate at the University of Manitoba from 1971 to 1973, when he joined the Faculty of Engineering at the University of Regina at Regina, Canada. In 1976 he was promoted to the rank of associate professor and served as Assisant Dean of Engineering. In September 1977 he joined the Defence Research Establishment Ottawa as a defence scientist, and in 1982 was appointed section head of the Electromagnetics Section. responsible for programs in navigation. electromagnetic compatibility, and nuclear electromagnetic pulse effects. In Fchruary 198.5 he was appointed director of Research and Development Air at National Defence Headquarters. From September 198.5 to June 1986, Dr. Bhartia attended the National Defence College of Canada at Kingston and on his rcturn was appointed director of Research and Development Communication and Space, where he served for three years. In September 1989 he was appointed director of the Underwater Acoustics Division at the Defence Research Establishment Atlantic at Dartmouth, Nova Scotia. and in July 19Y1 he returned to Ottawa as director of the Radar Division at the Defence Research Establishment, Ottawa. In July 1992. he was appointed chief of the Defence Research Establishment Atlantic. Dr. Bhartia has had considerable consulting experience with many companies while serving at the university and is the author of over 100 papers in the areas of radar. microwave and millimeter-wave circuits, components, and transmission lines. He is also the coauthor of a number of books including Microstrip Antennas (Artech House), Millimeter Wuve Engineering and Applications (Wiley), E-Plane Integrated Circuifs (Artech House), and Microwave Solid Stare Circuif Design (Wiley). He has also contributed chapters to other texts and holds a number of patents.Dr. Bhartia is a fellow of the IEEE, a fellow of the Institution of Electrical and Telecommunication Engineers, and a member of a number of technical societies. He has served and continues to serve on the editorial board or as a reviewer for many scientific journals. He has served as director of the Canadian Microelectronics Centre, on the Queen's University Engineering Advisory Council, on the Tradex Management Inc. Board, and is currently on the Board of the Canadian Centre for Marine Communications and Nova Scotia Premier's Council in Applied Science and Technology. Dr. Bhartia is also Chairman of the Scientific Committee of National Rcpresentatives for SACLANTCEN in Italy.

Publication History

  1. Issue published online: 9 MAR 2007
  2. Article first published online: 9 MAR 2007
  3. Manuscript Revised: 1 MAR 1994
  4. Manuscript Received: 22 OCT 1993

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Abstract

Open dielectric resonators (DRs) offer attractive features as antenna elements. These include their small size, mechanical simplicity, high radiation efficiency due to no inherent conductor loss, relatively large bandwidth, simple coupling schemes to nearly all commonly used transmission lines, and the advantage of obtaining different radiation characteristics using different modes of the resonator. In this article, we give a comprehensive review of the modes and the radiation characteristics of DRs of different shapes, such as cylindrical, cylindrical ring, spherical, and rectangular. Further, accurate closed form expressions are derived for the resonant frequencies, radiation Q-factors, and the inside fields of a cylindrical DR. These design expressions are valid over a wide range of DR parameters. Finally, the techniques used to feed DR antennas are discussed. © 1994 John Wiley & Sons, Inc.

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