Experiments of device failures in a planar nine-way metamaterial power-combined amplifier

Author

Wei-Chiang Lee ; Tah-Hsiung Chu

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

The degradation characteristic of a planar nine-way metamaterial power-combined amplifier with device failures is investigated in this paper. The power-divider/combiner design is based on the metamaterial lens structure and is composed of positive refractive index material and zero refractive index (ZRI) material. Nine 1-W power amplifiers are inserted in the ZRI material to attain a nine-way power-combined amplifier. Due to its uniform isolation characteristics of the metamaterial power divider/combiner, the graceful degradation performance of this power-combined amplifier is shown to be independent of the amplifier failure sequence and is experimentally demonstrated.

Keywords

metamaterials; power amplifiers; power dividers; ZRI material; device failures; graceful degradation performance; metamaterial lens structure; planar nine-way metamaterial power-combined amplifier; positive refractive index material; power-divider-combiner design; zero refractive index material; Degradation; Metamaterials; Power amplifiers; Power dividers; Power generation; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929230

Filename

6929230