Quasi-optical antenna array amplifiers

Quasi-optical antenna array amplifiers

Several quasi-optical transmission wave amplifiers are presented: (1) a two-level power-combining PHEMT patch-antenna lens amplifier with 8 dB of absolute power gain at 9.7 GHz used for beamforming and beam-switching; (2) a saturated class-A polarization-preserving 24-MESFET patch array which produc...

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Bibliographische Detailangaben
Hauptverfasser: Schoenberg, J., Mader, T., Shaw, B., Popovic, Z.B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna arrays
Array signal processing
Coplanar waveguides
Gain
Lenses
Low-noise amplifiers
PHEMTs
Polarization
Slot antennas
Transmitting antennas
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Beschreibung
Zusammenfassung:Several quasi-optical transmission wave amplifiers are presented: (1) a two-level power-combining PHEMT patch-antenna lens amplifier with 8 dB of absolute power gain at 9.7 GHz used for beamforming and beam-switching; (2) a saturated class-A polarization-preserving 24-MESFET patch array which produces 0.7 Watts at 10 GHz with 21% power-added efficiency; and (3) an X-band 2-stage low-noise CPW PHEMT amplifier cell using anti-resonant slot antennas with 21.7 dB active gain, 3.2 dB noise figure and a 6% 3 dB bandwidth.< >
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.1995.405933