학술논문
Millimeter-Wave GaAs Ultra-Wideband Medium Power Amplifier and Broadband High-Power Power Amplifier for 5G/6G Applications
Document Type
Periodical
Source
IEEE Journal on Emerging and Selected Topics in Circuits and Systems IEEE J. Emerg. Sel. Topics Circuits Syst. Emerging and Selected Topics in Circuits and Systems, IEEE Journal on. 14(1):111-121 Mar, 2024
Subject
Language
ISSN
2156-3357
2156-3365
2156-3365
Abstract
This paper presents an ultra-wideband (UWB) medium power amplifier (MPA) and a broadband high-power power amplifier (HPA) operating at the 5G/6G frequency bands. By using $0.15~\mu \text{m}$ GaAs pseudomorphic high electron mobility transistor (pHEMT) technology process, the proposed UWB MPA delivers an average small-signal gain of 16.5 dB, a saturation output power ( $\text{P}_{\mathrm {sat}}$ ) of 24 dBm, and a peak power-added efficiency (PAE) over 24% from 24 to 38 GHz with a chip area of $2\times1$ mm2. The broadband HPA demonstrates a 17-dB average small-signal gain, 29-dBm $\text{P}_{\mathrm {sat}}$ , and a PAE over 28% from 24 to 32 GHz with a $2.4\times1.1$ mm2 chip size. The measurement results have demonstrated the great potential of the proposed PA for 5G/6G millimeter-wave applications.