An optimized design of distributed active transformer
SCIE
SCOPUS
- Title
- An optimized design of distributed active transformer
- Authors
- Kim, S; Lee, K; Lee, J; Kim, B; Kee, SD; Aoki, I; Rutledge, DB
- Date Issued
- 2005-01
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGI
- Abstract
- A novel structure distributed active transformer (DAT), which significantly reduces the coupling from the DAT to the feed line is demonstrated. A grounded guard line is implemented to isolate the feed line from the magnetic field of the DAT. The measured result of the DAT on a GaAs substrate shows a 10.5-dB reduction in the coupling. To reduce DAT loss, an air-bridge connected double primary DAT structure is implemented. The DAT at 2 GHz shows a 0.7-dB loss reduction in comparison to the conventional DAT. The improved DAT performance is related to the reduced metal resistance and closer coupling between the primary and secondary loops without any increase in the DAT area.
- Keywords
- circular geometry; distributed active transformer (DAT); magnetic coupling reduction; passive loss reduction; power amplifier; power combining
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24823
- DOI
- 10.1109/TMTT.2004.83
- ISSN
- 0018-9480
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 53, no. 1, page. 380 - 388, 2005-01
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.