Microstrip Antenna Miniaturization Design Using Slow Wave Property of EBG Structure
Date Issued
2009
Date
2009
Author(s)
Chen, Ya-Shin
Abstract
In wireless communication systems the signal transmission always relies on antennas. With the advance in technology nowadays, the appearances of miniaturized electronic products are more frequent. Most of these communication products are operating at lower frequency band such as WLAN which uses the specification of 802.11b and 802.11g, Bluetooth system as well as GSM900 are operating at lower frequency band below a few GHz. In order to integrate with miniaturized wireless devices, we have proposed an EBG integrated patch antenna for reducing antenna size. With numerous advantages, the conventional microstrip antennas can be employed in many devices but are not proper for compact systems which have low operation frequency. The good radiation property of a patch antenna integrated with EBG structure on a dielectric slab can still be maintained. The simulation and measurement have been developed for verification. Furthermore, we have an analysis about EBG parameters and propose a design procedure for better EBG patch antenna design. The comparisons between a conventional and EBG patch antenna have also discussed in this thesis. The overall performance is validated in the simulation and measurement.
Subjects
Microstrip antenna
EBG structure
miniaturization
size reduction
Type
thesis
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ntu-98-J96921017-1.pdf
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