A 44-GHz monolithic waveguide plane-wave amplifier with improved unit cell design [using pHEMTs]

Autor: Emilio A. Sovero, Youngwoo Kwon, D.S. Deakin, John A. Higgins
Rok vydání: 1998
Předmět:
Zdroj: IEEE Transactions on Microwave Theory and Techniques. 46:1237-1241
ISSN: 0018-9480
DOI: 10.1109/22.709463
Popis: A 44-GHz monolithic waveguide plane-wave amplifier (PWA) with improved unit cell design is presented in this paper. The unit cell is a two-stage direct-coupled design and satisfies size, bistability, and stability requirements of the waveguide PWA. The ultra-compact unit cell had a cell size of 0.8 mm/sup 2/, and showed a small-signal gain of 8 dB and an output power of 15 dBm at 44 GHz with a corresponding dc-to-RF efficiency of 10%. A monolithic waveguide PWA using these unit cells showed a "flange-to-flange" gain of 5 dB, an output power of 0.3 W, and an efficiency of 2% at 44 GHz.
Databáze: OpenAIRE