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Design of a planar inverted-F Antenna with very wide impedance bandwidth

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3 Author(s)
Hoon Park ; Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul ; Kyungho Chung ; Jaehoon Choi

This letter presents a novel wideband planar inverted F-antenna, which covers GSM850/DCS1800/DCS1900/ IMT2000/WLAN/DMB services at the same time. The proposed antenna consists of a main patch with a pair of slant slits and L-shaped patch and occupies a total volume of 15times44times8mm3. The triple frequency bands are obtained by changing the length and width of a slant slit 1 on the main patch. A very wide impedance bandwidth characteristic is achieved by optimizing not only the length and height of a L-shaped patch between the main patch and ground plane but also the length and width of a pair of slits on the main patch which is excited by the modified coplanar waveguide-feed. Good broadside radiation patterns are achieved for all six-frequency bands of interest

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:16 ,  Issue: 3 )