An improved electric field probe with applications in high efficiency PA design and diagnostics

Author

Dehghan, N. ; Cripps, Steve C. ; Porch, Adrian ; Lees, J.

Author_Institution

Cardiff Univ., Cardiff, UK

fYear

2013

fDate

7-7 June 2013

Firstpage

1

Lastpage

4

Abstract

An Electric Field Probe is described, which has substantially improved bandwidth and spatial resolution compared to previously reported work [1]. Calibration tests on the reported probe shows a flat amplitude and phase response up to 6GHz. A novel calibration technique is described, which has enabled direct observation of device plane voltages in high power RFPAs. Results show evidence of various anomalous effects, including variation of voltage across the periphery of high power RF devices.

Keywords

MMIC power amplifiers; calibration; electric fields; field effect MMIC; integrated circuit design; microwave measurement; voltage measurement; amplitude response; anomalous effect; calibration technique; electric field probe; flat amplitude response; high efficiency PA design; high power RFPA; phase response; voItage variation; Calibration; Conductors; Frequency control; Indexes; Performance evaluation; Radio frequency; Radiofrequency integrated circuits; High power amplifiers; microwave imaging; microwave measurements; microwave transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Measurement Conference (ARFTG), 2013 81st ARFTG

Conference_Location

Seattle, WA

Print_ISBN

978-1-4673-4981-9

Type

conf

DOI

10.1109/ARFTG.2013.6579026

Filename

6579026