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Analysis and design of multi-functional, parasitic array antennas for optimized wireless communications
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|Title:||Analysis and design of multi-functional, parasitic array antennas for optimized wireless communications|
|Authors:||Yu, Jay Jaekyum|
|Date Issued:||Aug 2011|
|Publisher:||[Honolulu] : [University of Hawaii at Manoa], [August 2011]|
|Abstract:||Over the past several decades, parasitic array antennas have been widely used in the long distance wireless communications applications due to the simple structure and high gain achievement. Recently, small yet multi-functional antennas have become an increasing demand for modern wireless communications devices. The traditional parasitic array antennas, however, are not suitable for modern wireless systems because of various disadvantages such as single band operation, narrow bandwidth, large physical size, and linear polarized radiation. This thesis examines new designs of multi-functional parasitic array antennas to meet the demands of current wireless systems. First, as a ground work, designs of compact-sized, multi-band parasitic array antennas with the use of helical-shaped directors are investigated. Then additional functionality, frequency tunability is demonstrated. In addition, electrically small and printable parasitic array antennas with dual bands capability are proposed. Finally, aside from the multi-band antenna, an electrically small, circularly polarized parasitic array antenna is explored.|
|Description:||M.S. University of Hawaii at Manoa 2011.|
Includes bibliographical references.
|Appears in Collections:||
M.S. - Electrical Engineering|
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