Title :
A new method to analyze micromachining aperture coupled microstrip antennas
Author :
Hang, Yu ; Qi, Zhu ; Wen-Wu, Ding
Author_Institution :
Dept. of Electr. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, China
Abstract :
After a cavity has been etched in a substrate of high dielectric constant by micromechanical technology, the radiation efficiency of micromachining microstrip antennas, which have similar structure to aperture-coupled microstrip antennas (APA), is greatly improved. Some numerical techniques including MoM are not easy to use in the design of micromachined microstrip antennas because of their need for more calculation time. A method combining the transmission-line model of microstrip antennas and the calculation of effective dielectric constant has been presented here, which is used to calculate the input impedance of micromachined microstrip antennas. Comparison between our results and others has proven the efficiency of the present method.
Keywords :
antenna theory; aperture antennas; electric impedance; micromachining; microstrip antennas; permittivity; substrates; transmission line theory; aperture coupled microstrip antennas; cavity etching; effective dielectric constant; high dielectric constant substrate; input impedance; micromachined microstrip antenna; micromachining; micromechanical technology; radiation efficiency; transmission-line model; Aperture antennas; Aperture coupled antennas; Dielectric substrates; Etching; High-K gate dielectrics; Micromachining; Micromechanical devices; Microstrip antennas; Transmission lines; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016338
