Compact Doherty Amplifier Having Improved Video Bandwidth
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Jan 30, 2023
filing date -
Jan 30, 2023
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Abstract
Example embodiments relate to compact Doherty amplifiers having improved video bandwidth. One example embodiment includes an amplifier. The amplifier includes a package having a substrate. The amplifier also includes at least one amplifier unit arranged in the package. Each amplifier unit includes an input terminal and an output terminal. Each amplifier unit also includes an active semiconductor die on which a high-power transistor is integrated. Additionally, each amplifier unit includes an input matching capacitor and an output matching capacitor. Further, each amplifier unit includes a third inductor connecting an output of the high-power transistor to the output matching capacitor. In addition, each amplifier unit includes a fourth inductor connecting an input of the high-power transistor to the input matching capacitor. Yet further, each amplifier unit includes an output resonance network including a series connection of a first inductor and a first capacitor. Each amplifier unit includes a passive semiconductor die.
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