Development of a Very Small Normal Mode Helical Antenna for the Tire Pressure Sensor of TPMS
نویسندگان
چکیده
+ Department of Electrical and Electronic Engineering, National Defense Academy 1-10-20 Hashirimizu Yokosuka 239-8686 Japan, e-mail: [email protected] ++ The Yokohama Rubber Co.Ltd, Hiratsuka-shi, 254-8601, Japan
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1. Introduction Recently, very small antennas are requested in RFID tags and tire attached sensors of the tire pressure monitoring system (TPMS). In these applications, normal-mode helical antennas (NMHA) are interested that can achieve high antenna efficiencies at very small size such as 1/100 wavelengths. Moreover, NMHA can increase antenna gains in the metal plate proximity use. However, NMH...
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تاریخ انتشار 2008