npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041


Research Paper

New Phys.: Sae Mulli 2020; 70: 1030-1037

Published online December 31, 2020

Copyright © New Physics: Sae Mulli.

Research on Microstrip Transmission Line Design for Microwave Memristive Devices

Hanju LEE*

Department of Physics, Jeju National University, Jeju 63243, Korea


Received: September 22, 2020; Revised: November 19, 2020; Accepted: November 19, 2020


We conducted research on the microwave memristive response of a microstrip transmission line (MTL) coupled with an yttrium iron garnet (YIG) thin film. We investigated the memristive responses of YIG-MTL devices with MTL signal lines of different widths. Measurement results showed that a decrease in the width of the MTL signal line resulted in an improvement of the microwave memristive response of the YIG-MTL device. Based on transmission line theory, we showed that the enhancement of the memristive property of the MTL was due to an increase in the inductance that was caused by a decrease in the width of the signal line. The increase in the inductance of the MTL caused an increase in the strength of the microwave magnetic near field, and as a result, the magnetic coupling between the YIG and MTL was improved. The present result provides a useful way to improve the memristive response of a wave memristive device and should be helpful in the design of wave memristive microwave device.

Keywords: Ferromagnetic resonance, Memristive, Microwave, Microstrip transmission line

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