A new magnetostatic wave delay line using YIG film

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

“…When the power of the input signal is small, a waveform similar to that of the input signal is observed with a time delay as the output signal. The present waveguide operates as a linear delay line [3,4]. When the input power is increased, the output pulse width is decreased, as shown in Fig.…”

“…By means of the nonuniform magnetic field in the x direction, transverse radiation of the MSFVW is prevented [5], while the nonuniform magnetic field in the y direction suppresses sudden variations of wavelength in the propagation direction. Hence, the wavelength of the electromagnetic wave and that of the MSFVW are matched [4]. The electromagnetic field of the microstrip line in the transverse direction (x direction) should exhibit slow exponential variation outside the strip conductor.…”

“…The envelope soliton of a magnetostatic forward volume wave (MSFVW) propagating in such a YIG thin-film microstrip-type magnetostatic delay line [3,4] is studied. It is demonstrated theoretically and experimentally that this transmission line works as a device for pulse compression and short pulse generation.…”

Efficient analysis of magnetostatic surface waves in printed and suspended ferrite loaded strip lines

“…Strip-guided MSSWs can be excited by placing a suspended metallic strip over a conventional MSSW transducer between the input and output antennas [3]. Excitation of strip-guided FVMSWs by direct feeds has been reported in [2]. A similar configuration could be useful for the excitation of strip-guided MSSWs, although the feed should be designed taking into account that the first strip-guided MSSW is an odd mode, as it will be shown later.…”

“…Moreover, magnetostatic strip lines may be of technological interest due to the field confinement in the region below the strip. Recently new magnetostatic devices using strip-guided forward volume magnetostatic waves (FVMSW) have been proposed [2]. Strip-guided MSSWs may be also an alternative.…”