A 2-STAGE SPATIAL AMPLIFIER WITH HARD HORN FEEDS

Authors
IVANOV T MORTAZAWI A
Citation
T. Ivanov et A. Mortazawi, A 2-STAGE SPATIAL AMPLIFIER WITH HARD HORN FEEDS, IEEE microwave and guided wave letters, 6(2), 1996, pp. 88-90
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE microwave and guided wave letters → ACNP
ISSN journal
10518207
Volume
6
Issue
2
Year of publication
1996
Pages
88 - 90
Database
ISI
SICI code
1051-8207(1996)6:2<88:A2SAWH>2.0.ZU;2-A
Abstract
A spatial amplifier consisting of two stages,,vith each stage employin g nine HEMT's, has been developed, The coupling to and out of the spat ial amplifier is accomplished by placing it in the reactive field of t wo hard horn antennas, The hard horns' improved aperture field uniform ity ensures the simultaneous saturation of most of the active devices across the amplifier array, The amplifier has a small signal gain of 1 6.2 dB at 9.98 GHz and produces 90 mW at a 2-dB compression point.