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URN etd-0723107-190323 Statistics This thesis had been viewed 4781 times. Download 3005 times. Author Cheng-min Jen Author's Email Address No Public. Department Communication Engineering Year 2006 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 50 Title DESIGN OF ANTENNA FOR DIGITAL AUDIO BROADCASTING RECEPTION Keyword meandered loop antenna bow-tie antenna patch dipole antenna DAB DAB patch dipole antenna bow-tie antenna meandered loop antenna Abstract In this thesis, three printed antennas were studied for digital broadcast reception. The first one is a meandered loop antenna. Being in a meandered form, it can be made very compact. However, the gain and efficiency are quite low. In our study, the achieved gain is only -30dBi. Therefore, this configuration is not practical in use. We then studied a bow-tie antenna. Bow-tie antenna is typically considered to be a wide-band antenna. It takes more space than the loop antenna. Although the gain is increased up to 1.85dBi, the measured bandwidth of around 8% is less than what is required in DAB reception. The last one understudy is a dipole-patch antenna. This antenna is constructed by roughly half-sizing the previous bow-tie antenna. Measured -10db return loss bandwidth of the third antenna ranges from 192 to 236 MHz, or 21% bandwidth centered at 214MHz. The gain is 1.78dBi within the whole interested band. The third antenna is generally accepted for DAB reception. Advisor Committee The-nan Chang - advisor
Chau-Yun HSU - co-chair
Chun-Ching Wang - co-chair
Files Date of Defense 2007-06-26 Date of Submission 2007-07-27