A Planar Tapered-Slot-Fed Annular Slot Antenna with Band-Notched Characteristics for Ultra-Wideband Radios

Tzyh-Ghuang MA  Shyh-Kang JENG  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E88-A   No.9   pp.2384-2386
Publication Date: 2005/09/01
Online ISSN: 
DOI: 10.1093/ietfec/e88-a.9.2384
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Ultra Wideband Systems)
Category: Antenna
ultra wideband antennas,  slot antennas,  band-notched characteristics,  transmission line transition,  

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In this letter a planar tapered-slot-fed annular slot antenna with band-notched characteristics is presented for ultra-wideband radios. By etching a narrowband resonance slit on the non-radiating part of the antenna, the proposed antenna is capable of not only reducing the interference at the WLAN bands but also of avoiding the spatial-dependent bandstop characteristics that have commonly occurred in previous works.