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公开(公告)号：US20230336126A1
公开(公告)日：2023-10-19
申请号：US18335594
申请日：2023-06-15
发明人： Hyunchul PARK , Seokhyeon KIM , Byungjoon PARK
CPC分类号： H03F1/0288 , H03F3/245 , H03F1/565 , H03F2200/451
摘要： The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond a 4th-Generation (4G) communication system such as long term evolution (LTE). A Doherty power amplifier in a wireless communication system is provided. The Doherty power amplifier includes a differential carrier amplifier, a differential peaking amplifier, and an output matching circuit. The output matching circuit may include a primary tuning capacitor, a transformer, and a secondary tuning capacitor. The differential carrier amplifier may be connected to the primary tuning capacitor through a carrier capacitor, and inductors, of an output terminal of the differential carrier amplifier. The differential peaking amplifier may be connected to the primary tuning capacitor. The primary tuning capacitor, the inductors, and the carrier capacitor may be configured to function as a quarter-wave transformer.
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公开(公告)号：US20230299480A1
公开(公告)日：2023-09-21
申请号：US18202163
申请日：2023-05-25
发明人： Kihyun KIM , Seokhyeon KIM , Yonghoon KIM , Hyunchul PARK
摘要： In a 5th generation (5G) or pre-5G communication system for supporting a high data transfer rate, a method of measuring a power of a signal in an electronic device may include obtaining, by at least one sensor, a first voltage of the signal at a first point between a power amplifier and a transmission line, obtaining, by the at least one sensor, a second voltage of the signal at a second point between the transmission line and an antenna, and calculating a power of the signal, based on the first voltage and the second voltage. A length of the transmission line may be based on a wavelength of the signal. The method and corresponding electronic device reduce an error between power to be calculated and power consumed in practice.
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