Experimental and numerical investigation of a magnetic resonator antenna based on the M‐type hexaferrite (Ba_xSr_1−xFe₁₂O₁₉)

Abstract

A significant comparison based on full nonlinear simulations and experimental results of two DPAs implementing respectively a TL and a Class F configurations, has been presented. The expected 15% (roughly) improvement in output power and drain efficiency when using a Class F configuration with respect its TL counterparts has been experimentally demonstrated. REFERENCES 1. W.H. Doherty, A new high efficiency power amplifier for modulated waves,

Dielectric characterization of Ba x Sr 1−x Fe 12 O 19 ( x =0.05−0.35) ceramics

“…For this reason, several methods have been employed in order to synthesize ferrites nanograins with definite shapes and sizes [10]. Synthesis of BaFe 2 O 4 , BaFe 12 O 19 and Ba(Sr)Fe 12 O 19 ferrites was performed using the sol-gel auto combustion technique [10,11], high-energy ball milling [8,12,13], chemical coprecipitation method [14], solid state reaction method [7,15,16], classical sol-gel route [1,17] and other methods [18][19][20].…”