Title :
Microstrip-Fed Semi-Elliptical Dipole Antennas for Ultrawideband Communications
Author :
Zhang, Jin-Ping ; Xu, Yun-Sheng ; Wang, Wei-Dong
Author_Institution :
Univ. of Sci. & Technol. of China, Hefei
Abstract :
A microstrip-fed semi-elliptical dipole antenna (MFSEDA) is proposed and designed for ultrawideband (UWB) communications. The antenna has large bandwidth covering the frequency band from 3.1 to 10.6 GHz, radiation patterns similar to those of a conventional dipole antenna, and small size with the dimension of only about one third of the wavelength instead of half wavelength for the lower frequency. With simple and proper modification of the radiation patches, a frequency-notched antenna based on the MFSEDA is also designed and good band-notched performance from 5.0 to 6.0 GHz can be obtained. Measured results show that these MFSEDAs are suitable for UWB applications due to their high performances.
Keywords :
antenna feeds; antenna radiation patterns; dipole antennas; microstrip antennas; ultra wideband communication; bandwidth 3.1 GHz to 10.6 GHz; microstrip-fed semi-elliptical dipole antennas; radiation patterns; ultrawideband communications; Antenna measurements; Antenna radiation patterns; Bandwidth; Dipole antennas; Frequency; Microstrip antennas; Ultra wideband antennas; Ultra wideband communication; Ultra wideband technology; Wavelength measurement; Band-notched antenna; planar elliptical antenna; ultrawideband (UWB) antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.913165
