URN etd-0218113-154012 Statistics This thesis had been viewed 1155 times. Download 8 times. Author Chin-Yi Chen Author's Email Address No Public. Department Communication Engineering Year 2012 Semester 1 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 61 Title DUAL L-SHAPED APERTURE COUPLED WIDEBAND CIRCULARLY POLARIZED ANTENNA Keyword Stack Aperture coupled antenna Circularly polarized Circularly polarized Aperture coupled antenna Stack Abstract An aperture-coupled patch antenna is presented. The aperture is composed of two L-shaped-like slots and is proximately-fed by an L-shaped-like strip.
The L-shaped-like strip is first coupled to the first slot through its vertical arm , then serially coupled to the second slot through its horizontal arm.
The length of the vertical and horizontal arms of the L-shaped strip are found highly correlated to the axial- ratio bandwidth of the antenna. The center frequency in the return-loss plot of the antenna is also influenced by the two lengths. The optimized antenna has a return-loss bandwidth of 19.6 % (2.26-2.75 GHz) and an axial-ratio bandwidth of 16 % (2.3-2.7 GHz).Advisor Committee The-Nan Chang - advisor
Ding-Bing Lin - co-chair
Ming-Lang Lin - co-chair
Files indicate in-campus access at one year and off-campus not accessible Date of Defense 2013-01-31 Date of Submission 2013-02-18