下載電子全文宣告This thesis is authorized to indicate not accessible
You can not download at the moment.
Your IP address is 18.104.22.168
The defense date of the thesis is 2009-08-17
The current date is 2020-08-13
URN etd-0817109-154927 Statistics This thesis had been viewed 2092 times. Download 4 times. Author Jing-Hae Jiang Author's Email Address No Public. Department Communication Engineering Year 2008 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 43 Title ENHANCE GAIN AND BANDWIDTH OF CIRCULARLY POLARIZED MICROSTRIP PATCH ANTENNA USING GAP-COUPLED METHOD Keyword Gap-Coupled circularly polarized microstrip patch antenna microstrip patch antenna circularly polarized Gap-Coupled Abstract In this thesis, one 3x3 and one 5x5 antenna arrays are studied. In each array, one probe-fed circularly polarized (CP) microstrip patch antenna is placed at the center as the driven antenna and is gapped coupled to the remaining elements. It is investigated that CP gain of the proposed antenna can be enhanced by properly arranging size and spacing of/between these parasitic elements. The driven patch is a perturbed square one with two diagonal corners truncated. The remaining elements are square patches slightly smaller than driven one. The proposed antennas have been constructed and measured. The 3x3 array has an average gain of 7.7dBic over a 3dB axial ratio bandwidth of 3.3%. The 5x5 array has an average gain of 9.3dBic over a 3dB axial ratio bandwidth of 8.1%. Advisor Committee The-Nan Chang - advisor
Files Date of Defense 2009-07-24 Date of Submission 2009-08-17