Output Signal Re-Injection in Load-Modulated Balanced Amplifiers for RF Bandwidth Improvement

This letter discusses the theory, simulation, and experimental characterization of a load-modulated balanced amplifier (LMBA) where the control signal power (CSP) is obtained by re-injecting part of the output RF signal. Compared to the standard balanced load-modulated power amplifier (PA), this app...

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Veröffentlicht in:	IEEE microwave and wireless technology letters (Print) 2023-10, Vol.33 (10), p.1-4
Hauptverfasser:	Yuan, Tonghui, Quaglia, Roberto, Chaudhry, Kauser, Azad, Ehsan, Powell, Jeff R., Cripps, Steve C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Broadband Directional couplers Frequency modulation Impedance load modulation Modulation Phase shifters Power amplifiers power amplifiers (PAs) Power generation Push-pull amplifiers Radio frequency
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