Title :
A new type of compact microstrip patch antenna based on Composite Right/Left-Handed Transmission Lines (CRLH-TLs) combined with Koch-fractal-shape geometry
Author :
Xu He-xiu ; Wang Guang-ming
Abstract :
A new type of microstrip antenna based on Composite Right/Left-Handed Transmission Lines (CRLH-TLs) combined with Koch-fractal-shape geometry is designed in this paper. Matching means of a ring slot is also presented. The dimensions of the implemented antenna is 29.6*28mm2, which has been miniaturized by 57% compared with conventional microstrip antenna(44*44mm2). Numerical results show that antenna gain of conventional half wavelength resonance mode without ring slot is up to 6 dB which is two times as conventional microstrip antenna. Zeroth order resonance (ZOR) antennas radiate electromagnetic wave omnidirectionally like monopole antennas and simultaneously maintain the inherent advantages of low profile.
Keywords :
metamaterials; microstrip antennas; resonance; transmission lines; Koch-fractal-shape geometry; compact microstrip patch antenna; composite right/left-handed transmission lines; electromagnetic wave radiation; zeroth order resonance; Capacitors; Distributed parameter circuits; Geometry; Magnetic materials; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Slot antennas; Transmission line antennas; Transmission line theory; Composite Right/Left-Handed Transmission Lines (CRLH-TLs); Koch-fractal-shape geometry; monopole antennas; ring slot; zeroth order resonator antennas;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5384122
