ONE-STAGE AND 2-STAGE SPATIAL AMPLIFIERS

Authors
IVANOV T BALASUBRAMANIYAN A MORTAZAWI A
Citation
T. Ivanov et al., ONE-STAGE AND 2-STAGE SPATIAL AMPLIFIERS, IEEE transactions on microwave theory and techniques, 43(9), 1995, pp. 2138-2143
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on microwave theory and techniques → ACNP
ISSN journal
00189480
Volume
43
Issue
9
Year of publication
1995
Part
1
Pages
2138 - 2143
Database
ISI
SICI code
0018-9480(1995)43:9<2138:OA2SA>2.0.ZU;2-P
Abstract
This paper reports the design of nine HEMT, one- and two-stage spatial amplifiers which employ a common ground plane for receiving and trans mitting port isolation and for heat sinking. By placing the spatial am plifier array in the near-field of the transmitting and receiving horn s, a net gain of 8 dB was obtained. This paper reports the first demon stration of a two-stage spatial amplifier constructed by employing nea r-field coupling of two single stage spatial amplifiers in free space.