1.5 kW, S-band solid-state pulsed power amplifier with digitally controlled automatic gain equalizer circuit

This paper describes fabrication and experiment of a 1.5 kW solid-state pulsed power amplifier with automatic gain equalization circuit for radar application. The solid-state pulsed power amplifier consists of parallel RF power modules to obtain a high RF power of more than 1.5 kW. Each power module has a series 8-cascaded power amplifier. Overall dimension of the amplifier is 39x29x15.6cm3 . Experimental results show peak output power of 1.8 kW, corresponding to PAE of 25% over a frequency range of 2.7 - 3.1 GHz with a pulse width of 100 musec and a PRF of 1 kHz.

[1]  M. Kumar,et al.  12-kW S-band solid-state transmitter for modern radar systems , 1993 .

[2]  V. Gregers-Hansen,et al.  Radar systems trade-offs vacuum electronics vs. solid state , 2004, Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786).

[3]  Edward D. Ostroff.  Solid-State Radar Transmitters , 1985 .

[4]  R. R. Pecharromán,et al.  New design for the Spanish AGC scheme using an adaptive gain controller , 2004, IEEE Transactions on Power Systems.