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Internal Ultrawideband Monopole Antenna for Wireless USB Dongle Applications

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3 Author(s)
Saou-Wen Su ; Technol. Res. Dev. Center, Lite-On Technol. Corp, Taipei ; Jui-Hung Chou ; Kin-Lu Wong

A novel, ultrawideband (UWB) monopole antenna suitable to be mounted on the printed circuit board (PCB) of a wireless, universal, serial-bus (USB) dongle as an internal antenna is presented. The proposed antenna in the study is a U-shaped, metal-plate monopole antenna, easily fabricated from bending a simple metal plate onto a foam base of a compact size of 6times11times20 mm3. The antenna mainly comprises a pair of wide-ended radiating arms and a bevel-feed transition. When the antenna is mounted at the top portion of the PCB, one end of the radiating arm is also short-circuited to the system ground plane. With the proposed antenna structure, which can provide a very wide operating bandwidth of larger than 7.6 GHz, the antenna impedance bandwidth can easily cover the 3.1-10.6 GHz UWB band. Details of the antenna design are described, and experimental results of the constructed prototypes are presented and discussed

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 4 )