Abstract
A novel magneto-impedance effect is investigated by introducing a Magnetic Microstrip Line in which a microwave power is directly flowed. The propagation of the microwave in the line can be modulated by external fields that cause changes in the permeability of the magnetic strip. The amplitude variation of the microwave as a carrier is rectified to obtain output signals. A simple structure sensor has been developed that exhibited a high change ratio of 48% in the transmission-line impedance and a wide signal bandwidth of 300 MHz. The present sensor has some advanced features in terms of the sensitivity and the bandwidth with referring to the previously proposed sensors.
