Improvement of broadband feedforward amplifier using photonic bandgap

Authors
Yoon, J Seo, C
Citation
J. Yoon et C. Seo, Improvement of broadband feedforward amplifier using photonic bandgap, IEEE MICR W, 11(11), 2001, pp. 450-452
Citations number
10
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
ISSN journal
15311309 → ACNP
Volume
11
Issue
11
Year of publication
2001
Pages
450 - 452
Database
ISI
SICI code
1531-1309(200111)11:11<450:IOBFAU>2.0.ZU;2-M
Abstract
In this paper, the photonic bandgap, the predistortion, and the secondary h armonic tuning are simultaneously employed in feedforward amplifier to maxi mize the power added efficiency (PAE) and the operating bandwidth for in IM T-2000 band. In this case, the secondary harmonic tuning and the predistort ion linearizer can cancel the second and the third harmonics, respectively. The PBG prevented any more harmonics to appear over 6 GHz. The feedforward amplifier was improved 4%, and 15 dBc in the PAE and the IMD(Intermodulati on Distortion), respectively. The operation bandwidth was achieved twice wi der than the conventional feedforward amplifier.