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A 0.1-µm InP HEMT Ka-band LNA with high and flat gain, very low noise figure and low VSWR has been developed. Across the entire Ka-band, of 26 GHz to 40 GHz, the MMIC LNA demonstrated associated gain of 21.9 plusmn 0.9 dB and an average noise figure of 1.5 dB with a minimum of 1.3 dB at 34 GHz. The LNA chip was cryogenically cooled to 12 K where it exhibited an associated gain of 23.0 ± 1.1 dB and an average noise temperature of 15.5 K, i.e. 0.23-dB noise figure. Two LNA chips were cascaded and assembled into a module. At room temperature, the module achieved an associated gain of 37.6 dB ± 1.8 dB and an average noise figure of 1.3 dB. At 15 K, the average noise temperature was improved to 11.4 K with 41.0 ± 2.4 dB associated gain.

Microwave devices --- Microwaves

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Wireless communication systems --- Microwave devices

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Microwave integrated circuits --- Microwave devices

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Monolithic microwave integrated circuits (MMICs) are used in a host of electronics from cellular phones and global positioning systems to missile systems and radar. They are prized for their high performance and reliability, but they can be costly and highly difficult to produce. Proper design is the key to minimizing these problems. This practical resource is filled with real-world design techniques and rules of thumb that engineers can use on the job everyday to decrease costs and improve production quality. Emphasizing practice over theory, this handy reference is filled with photos of real.

Microwave integrated circuits --- Microwave circuits --- Circuits, Microwave --- Electronic circuits --- Microwave devices --- Integrated circuits --- Design and construction.

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Microwaves --- Microwave devices --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering