Odd-Mode-Excited Tire-Wheel Assembly for Tire Pressure Monitoring Systems

Autor:	Hiroshi Yoshimoto, N. Ide, Hideo Iizuka, Kazuo Sato, K. Nakatsu
Rok vydání:	2012
Předmět:	Materials science business.industry Loop antenna Aperture Acoustics Electrical engineering Pressure sensor law.invention Magnetic field Standing wave Pressure measurement law Dipole antenna Electrical and Electronic Engineering business Excitation
Zdroj:	IEEE Transactions on Antennas and Propagation. 60:2063-2070
ISSN:	1558-2221 0018-926X
DOI:	10.1109/tap.2012.2186246
Popis:	A design methodology based on an odd-mode excited tire-wheel assembly is presented for tire pressure monitoring systems. The tire-wheel assembly is investigated using the finite-integration technique-based simulator CST Microwave Studio. Numerical investigations using a pair of electrically small dipoles inside the tire-wheel assembly show that the odd-mode excitation provides in-phase magnetic currents of standing waves along the angular direction on both sides of the tire-wheel assembly, resulting in the strong radiation in the plane normal to its axis. It is also shown that the odd-mode is excited by an electrically small loop antenna that has the aperture normal to the angular direction to enhance the magnetic coupling. The validity of the numerical investigations is confirmed by the measurements of a commercially available tire-wheel assembly at 434 MHz, where a loop antenna is installed into a transmitter. The effectiveness of the odd-mode excitation is numerically confirmed in a car body model having the tire-wheel assemblies rotated on the ground.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bd2328d5615d7fc33ec94a19f96501b6 https://doi.org/10.1109/tap.2012.2186246 Zobrazit plný text záznamu