Premium
Investigations on modified rectangular fractal curve shaped dielectric resonator antenna
Author(s) -
Ghatak Rowdra,
Soren Dipali,
Mishra Rabindra Kishore,
Poddar Dipak Ranjan
Publication year - 2012
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20613
Subject(s) - dielectric resonator antenna , fractal antenna , fractal , miniaturization , microwave , geometry , koch snowflake , antenna (radio) , resonator , bandwidth (computing) , optics , radiation pattern , physics , acoustics , materials science , electrical engineering , telecommunications , engineering , mathematics , coaxial antenna , mathematical analysis
In this article, a modified fractal rectangular curve (FRC)‐shaped dielectric resonator antennas (DRA) with two different functionalities is reported. These antennas are split in the middle into two halves and are excited by a coaxial probe. In first configuration, the fractal geometry is used to achieve wide bandwidth from 3.5 to 5.0 GHz covering the body area network frequencies as well as the IEEE 802.11a WLAN frequencies. The average peak gain within the band is about 7 dBi. The second investigation involves miniaturization of rectangular DRA by using FRC along the cross‐sectional boundary. By this, a DRA at 3.2 GHz could be realized using second iteration of modified rectangular curve fractal geometry resulting in a 50% size reduction by maintaining same radiation characteristics. © 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2012.