Magnetostatic forward volume wave soliton in a microstrip line with YIG film substrate

✍ Scribed by Kensuke Okubo; Makoto Tsutsumi

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 217 KB
• Volume: 82
• Category: Article
• ISSN: 8756-663X
• DOI: 10.1002/(sici)1520-6432(199904)82:4<39::aid-ecjb5>3.0.co;2-z

✦ Synopsis

This article considers the envelope soliton of a magnetostatic forward volume wave propagating in a YIG thinfilm microstrip line. It is demonstrated theoretically and experimentally that this waveguide works as a device for microwave pulse compression and for short pulse generation. According to the experimental results, an input 35-ns microwave pulse at 3 GHz was compressed to 10 ns. Also, by means of the split-step Fourier method, the mode of soliton propagation is numerically evaluated and compared with the experimental values. From the results, it is found that the YIG thin-film microstrip line has better characteristics than conventional devices, such as trapping of microwave energy in the strip. It is also found that the use of a nonuniform magnetic bias field is extremely effective.