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This paper presents two ultra wide bandwidth low noise amplifiers utilizing 0.18-um AlGaN/GaN HEMT technology. The single-stage, resistive feedback microstrip amplifiers target two different frequency bands, 0.3 - 4 GHz and 1.2 - 18 GHz, capable of better than 13:1 bandwidth. Both amplifiers use dual-gate HEMT devices with an on-chip drain bias network. The low frequency amplifier achieves 17.7 dB...
In this paper, we present three ultra wide bandwidth low-noise amplifiers (LNAs) using dual-gate AlGaN/GaN HEMT devices. The single-stage, resistive feedback amplifiers target two different frequency bands: two LNAs operate in 0.3-4 GHz and one LNA is in 1.2-18 GHz. All three LNAs are capable of better than 13:1 bandwidth. The first low frequency amplifier uses a microstrip design and achieves 17...
This paper presents a broadband low noise amplifier MMIC utilizing 0.2 urn AlGaN/GaN HEMT technology. The single-stage, resistive feedback amplifier is designed in co-planar waveguide (CPW) topology. It uses dual-gate devices with on-chip drain bias network to achieve 18 dB flat gain between 300 MHz -4 GHz. Measured noise figure is around 1.5 dB between 2 and 5 GHz, and better than 2 dB between 1...
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