A REVIEW PAPER ON BAND-NOTCH CHARACTERISTICS IN ULTRA WIDE BAND (UWB) ANTENNAS

Abstract

Over the last decade, ultra-wideband technology has undergone rapid growth because of its contribution to various sectors of human society. Due to its attractive features such as light weight, low cost, ease of manufacturing, integration capability with other systems, etc., printed antennas are considered the chosen platform to incorporate this technology. To avoid interference with other existing radio communication systems, antennas designed for ultra-wideband applications are needed to have notch characteristics. To boost the efficiency of the antenna, the techniques related to the design and inventions of printed band-notched antennas are continually updated. A detailed analysis of ultra-wideband antennas with band notch characteristics proposed in the last decade or so has been carried out in this paper. Based on their notch characteristics, the band notched UWB antennas available in the literature have been narrowly categorized into five different groups, such as single band-notch, dual band-notch, triple band-notch, quad/multiple band-notch, and reconfigurable/tunable band-notch. This review exercise may be useful for beginners working on ultra-wideband band-notched antennas, and the best information of the author is also not available in the open literature for such a review process.