Simple model for the parametric analysis of grid amplifiers

Compact Hybrid Coaxial Architecture for 3 GHZ-10 GHZ Uwb Quasi-Optical Power Combiners

“…The use of freespace networks for the distribution of the input signal and for the recombination of the amplified contributions permits a strong reduction in terms of losses in comparison to conventional folded combiners. The main reason for this is that the power combining process takes place in the surrounding air.The attention of researchers in the field of QO combiners has been particularly focused on tile-type grid amplifiers [8][9][10], amplifier arrays [11][12][13][14] and oscillators [15,16]. Referring to the tile-type family, represented by grid amplifiers and amplifier arrays (Figure 1(a)), the operating principle is based on the amplification of a free-space wave coming from an external source.…”