A 1.9 GHZ ADAPTIVE FEEDFORWARD POWER-AMPLIFIER

Authors
QIAN C CHEN YY ZHU XW
Citation
C. Qian et al., A 1.9 GHZ ADAPTIVE FEEDFORWARD POWER-AMPLIFIER, Microwave journal, 41(11), 1998, pp. 86
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic",Telecommunications
Journal title
Microwave journal
ISSN journal
01926225 → ACNP
Volume
41
Issue
11
Year of publication
1998
Database
ISI
SICI code
0192-6225(1998)41:11<86:A1GAFP>2.0.ZU;2-G
Abstract
A relatively low power feedforward amplifier for 1.9 GHz has been deve loped to demonstrate the feasibility of the adaptive feedforward linea rization technique. The saturated two-tone output power of this amplif ier is approximately 4 W. The measured third-order intermodulation is -18 dBc before the linearization loop is closed; after the loop is clo sed, this value is suppressed to -45 dBc. Therefore, the amplifier's i ntermodulation cancellation performance is greater than 25 dB.