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A CPW-fed suspended, low profile rectangular dielectric resonator antenna for wideband operation

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4 Author(s)
Sheng-Ming Deng ; Dept. of Electron. Eng., Ta-Hwa Inst. of Technol., Taiwan ; Ching-Long Tsai ; Sheng-Far Chang ; Sheau-Shong Bor

An open-ended CPW-fed suspended rectangular dielectric resonator antenna with an air gap between the antenna and substrate is presented, and a lower Q value is obtained than that without an air gap. In the meantime, by experimental results, a wider impedance bandwidth of 15.3% is enhanced to be a fivefold bandwidth of that without an air gap. Additionally, the higher gain performance is achieved to over 6 dBi. Although such kind of antenna configuration has an an air gap, it is still equivalent to the horizontal magnetic dipole antenna. Besides, the front-to-back ratio is 16 dB, and co-polarization to cross-polarization is 23 dB at 4.8 GHz.

Published in:

Antennas and Propagation Society International Symposium, 2005 IEEE  (Volume:4B )

Date of Conference:

3-8 July 2005

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