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Compact Ultrawideband Rectangular Aperture Antenna and Band-Notched Designs

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2 Author(s)
Yi-cheng Lin ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei ; Kuan-jung Hung

A simple and compact ultrawideband (UWB) aperture antenna with extended band-notched designs is presented. The antenna consists of a rectangular aperture on a printed circuit board ground plane and a T-shaped exciting stub. The proposed planar coplanar waveguide fed antenna is easy to be integrated with radio-frequency/microwave circuitry for low manufacturing cost. The antenna is successfully designed, implemented, and measured. A compact aperture area of 13 times23mm2 is obtained with promising performances, including broadband matched impedance, stable radiation patterns, and constant group delay. The correlation between the mode-based field distributions and radiation patterns is discussed. Extended from the proposed antenna, three advanced band-notched (5-6 GHz) designs are also presented as a desirable feature for UWB applications

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:54 ,  Issue: 11 )