Title :
A stair-shaped CPW-fed printed UWB antenna for wireless body area network
Author :
Shin, Hyuk ; Kim, Jeongpyo ; Choi, Jaehoon
Author_Institution :
Dept. of Electonics & Comput. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
In this paper, a CPW-fed ultra-wideband antenna for wireless body area network is proposed. The proposed antenna has a stair-shaped structure printed on the top of a substrate with the dielectric constant of 4.4 and occupies a small volume of 36 mm × 24 mm × 1 mm. The antenna has an impedance bandwidth of 8 GHz from 3 to 11 GHz. The variation of group delay between the two proposed antennas is less than 1.09 ns and the maximum gain variation is about 6.5 dB. The radiation pattern over the frequency band of interest is changed from near omni-directional to directional pattern when the antenna is placed on the body.
Keywords :
antenna radiation patterns; body area networks; coplanar waveguides; microstrip antennas; ultra wideband antennas; CPW-fed ultra wideband antenna; UWB antenna; antenna radiation pattern; bandwidth 8 GHz; near omnidirectional pattern; printed antenna; stair-shaped structure; wireless body area network; Antenna radiation patterns; Bandwidth; Body sensor networks; Delay; Dielectric constant; Dielectric substrates; Frequency; Impedance; Ultra wideband antennas; Ultra wideband technology; Coplanar Waveguide (CPW); Ultra Wideband(UWB) antenna; Wireless Body Area Network (WBAN);
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385290
