Load-Modulated Balanced Amplifier Design for Handset Applications

In this letter, a load-modulated balanced amplifier (LMBA) design for handset applications is proposed. The proposed LMBA is demonstrated experimentally with GaAs-HBTs. A PAE of 40.7% and an NR ACLR of - 37.7 dBc at an average output power of 31.7 dBm are measured at 3.75 GHz under 5G NR 100 MHz, D...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	IEEE microwave and wireless technology letters (Print) 2023-06, Vol.33 (6), p.1-4
Hauptverfasser:	Takenaka, Kiichiro, Noguchi, Yuuma, Arayashiki, Satoshi, Wada, Takaya
Format:	Artikel
Sprache:	eng
Schlagworte:	5G mobile communication 5G NR Sub-6 GHz Amplifier design cellular Couplers GaAs-HBTs handsets hybrid couplers Impedance load-modulated balanced amplifiers (LMBAs) Power amplifiers power amplifiers (PAs) Power generation Power measurement Push-pull amplifiers Telephone sets transmission line transformers (TLTs) user equipment
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In this letter, a load-modulated balanced amplifier (LMBA) design for handset applications is proposed. The proposed LMBA is demonstrated experimentally with GaAs-HBTs. A PAE of 40.7% and an NR ACLR of - 37.7 dBc at an average output power of 31.7 dBm are measured at 3.75 GHz under 5G NR 100 MHz, DFT-s-OFDM, QPSK operation. Moreover, the proposed LMBA maintains more than 32.9% efficiency with an NR ACLR of below - 37.7 dBc from 3.35 to 4.95 GHz, corresponding to 5G NR Band n77 and n79.
ISSN:	2771-957X 2771-9588
DOI:	10.1109/LMWT.2023.3266764