A tunable power amplifier (PA) from 2.1 GHz to 6.0 GHz is presented for multi-standard radios. The proposed multi-band PA can tune the output impedance to 50 over a wide frequency...
Daisuke Imanishi, Jee Young Hong, Kenichi Okada, A...
Abstract-- A generalized Hamiltonian method (GHM) was recently proposed for the passivity test of hybrid descriptor systems [1]. This paper extends the GHM theory to its S-paramete...