Title :
Tunable Band-notched Ultra Wideband (UWB) Planar Monopole Antennas Using Varactor
Author :
Jeong, Won-Seok ; Lee, Sang-Yun ; Lim, Won-Gyu ; Lim, Ho ; Yu, Jong-Won
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
A new tunable band-notched ultra wideband (UWB) planar monopole antenna is presented. The proposed antenna consists of a wideband planar monopole antenna, resonating stubs and varactor diodes. In order to generate tunable band-notched characteristic, we applied quarter-wavelength stubs with varactor diode to the wideband planar monopole antenna. We interpret the mechanism for notch characteristics using surface current distributions. This new approach is suitable for designing wideband antenna with narrow band interferer rejection characteristics.
Keywords :
monopole antennas; planar antennas; ultra wideband antennas; varactors; planar monopole antennas; quarter-wavelength stubs; resonating stubs; tunable band-notched ultra wideband antennas; varactor diodes; Broadband antennas; Capacitance; Diodes; Frequency; Microstrip antennas; Narrowband; Tunable circuits and devices; Ultra wideband antennas; Ultra wideband technology; Varactors;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751439
