Title

One- And Two-Stage Spatial Amplifiers

Keywords

Gain; Gain measurement; Heterojunction bipolar transistors; Lenses; Oscillators; Power amplifiers; Strips

Abstract

This paper reports the design of nine HEMT, one- and two-stage spatial amplifiers which employ a common ground plane for receiving and transmitting port isolation and for heat sinking. By placing the spatial amplifier array in the near-field of the transmitting and receiving horns, a net gain of 8 dB was obtained. This paper also reports the first demonstration of a two-stage spatial amplifier constructed by employing near-field coupling of two single stage spatial amplifiers in free space.

Publication Date

1-1-2009

Publication Title

Active Antennas and Quasi-Optical Arrays

Number of Pages

168-173

Document Type

Article; Book Chapter

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/9780470544068.ch4

Socpus ID

85036546665 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85036546665

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