Design and Implementation of Slot Antennas for Handset Applications
Date Issued
2009
Date
2009
Author(s)
Lin, Yen-PO
Abstract
This thesis presents several novel designs of the slot antennas with applications for handset terminals in mobile communication systems. Fed by a microstrip line, the antenna uses the microstrip line on the top layer to excite the meander slot on the backed layer, the antennas perform multi-band resonances with sufficient bandwidth covering the following frequency bands of communications ( GSM850/950 , GPS , DCS1800, PCS1900 , 3G, Bluetooth , WiMAX , IEEE 802.11a/b/g)，several parameters are selected for investigating the working principles. In the second half of this thesis, a grounded parasitic antenna is presented. Fed by a microstrip transmission line, the antenna contains a T-shaped driven grounded parasitic element on the bottom layer, the open stub matching structure let narrow band monopole antenna can also achieve wide band performance. In addition, we improve the antenna bandwidth at WiMAX band and combine the structure with T-shaped driven antenna with open stub matching as a diversity antenna for further MIMO analysis.
Subjects
mobile phone antennas
slot antennas
printed antennas
antenna diversity
Type
thesis
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