A Compact GNLTL Using Permanent Magnet Rings With Improved H-field Uniformity

There has been a great interest in using compact gyromagnetic nonlinear transmission lines (GNLTLs) for applications in defense platforms, radars, and space as pulsed RF transmitting sources. The reason is that the GNLTL is all solidstate and does not require the vacuum and thermionic electron guns as power electronic tubes do. Since GNLTS employ axial magnetic bias, permanent magnets can replace the solenoid to reduce weight and size. The best alternative for this is to use neodymium rings along the line. Then, in this work, we will present the results obtained with a bench-compact line using a small number of magnets, instead of a solenoid, driven by a Gaussian shape input pulse in the range of 6–12 kV and with a width of about 15 ns.