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Novel monolithic multifunctional balanced switching low-noise amplifiers

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9 Author(s)
D. C. W. Lo ; Electron. Syst. & Technol. Div., TRW Inc., Redondo Beach, CA, USA ; Huei Wang ; B. R. Allen ; G. S. Dow
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A novel multifunctional balanced switching low-noise amplifier (BSLNA) which can be used as a low-noise amplifier, a low-noise switch, or a broad-band 180° phase shifter is proposed. Two monolithic BSLNA's at Ka- and W-band frequencies are demonstrated using the 0.1 μm pseudomorphic (PM) InP- and GaAs-based HEMT technologies, respectively. Potential applications of the novel BSLNA are in on-off keying (OFK) or binary phase-shift keying (BPSK) in communication systems and input switch for Dicke-switched radiometer systems. The extensions of this BSLNA structure to be a single-pole double-throw switch and a crossbar switch to interchange two signal paths are also addressed

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IEEE Transactions on Microwave Theory and Techniques  (Volume:42 ,  Issue: 12 )