Results 91 to 100 of about 21,355 (312)
Parallel Multiple Stages Power Amplifier and Power Combining Technique
, 2007 在本論文中，我們介紹了各種不同類別的功率放大器以及數種功率放大器的效率增進技術。更進一步，本論文設計與製作了數個以金氧半與矽鍺製程製作且供無線通訊應用的功率放大器。以0.18微米金氧半製程製作的自我偏壓串聯功率放大器，達成了15.3 dB的線性增益、18.8 dBm的飽和功率、17.7 dBm的1dB壓縮點以及25.6 %的功率增加效率；以0.35微米矽鍺製作的並聯多功率級功率放大器，在模擬上高功率級有28.7 dB的線性增益、28.9 dBm的飽和功率、26.6 dBm的1dB壓縮點以及41 ...
Lin, Po-Tsung, 林伯聰
core
A 15 GHz Stacked GaAs Power Amplifier For Potential 6G Application
This paper presents a two-stage stacked power amplifier designed at 15 GHz with 24.1 dBm output power, and 25.8% power-added efficiency (PAE) based on the WIN semiconductors 0.18 um GaAs technology.
Vissers, Rob Theodoor Wilhelm Anton, +2 more
core +1 more source
2.45 GHz Class E Power Amplifier for a Transmitter Combining LINC and EER
Acta Polytechnica, 2009 A 10 W class-E RF power amplifier (PA) is designed and fabricated using a Cree GaN HEMT. The proposed PA uses an innovative input circuit to optimize band with. At 2.45 GHz the PA achieves a PAE of 60 % at an outputpower of 40 dBm.
M. Dirix, O. Koch
doaj
New Directions for Adult and Continuing Education, EarlyView.ABSTRACT Mental well‐being is central to adult learner success, yet many adult education institutions lack capacity to provide timely and accessible support. This article examines how artificial intelligence (AI) can strengthen mental health–adjacent supports in adult and continuing higher education, with attention to professional practice and ...
Adam L. McClain, Thomas Wade
wiley +1 more source
, 2013 [[abstract]]A 60-GHz fully-integrated and broadband distributed active transformer (DAT) power amplifier (PA) is implemented in 90-nm CMOS technology. The PA performs a flat small signal gain of 26 plusmn 1 dB from 57 to 69 GHz which covers full band for
Yung-Nien Jen;Jeng-Han Tsai;Tian-Wei Huang;Huei Wang
core
An integrated power conversion system for bidirectional microwave wireless power transfer
Wireless Power TransferThis paper proposes a bidirectional wireless power conversion system that integrates the functions of a power amplifier (PA) and a rectifier at a frequency of 2.45 GHz.
Xian Zhang +4 more
doaj +1 more source
IEEE Access, 2019 The driver-stage envelope-injection power amplifier (EIPA) consisting of the wideband linear amplifier with the envelope amplitude and phase shaping functions is proposed. This SiGe BiCMOS EIPA is implemented without the switch amplifier and the off-chip
Wei-Ting Tsai +3 more
doaj +1 more source
New Directions for Adult and Continuing Education, EarlyView.ABSTRACT This article examines the evolving role of organizational leadership amidst the rapid advancements in artificial intelligence (AI). It explores a broadly experienced and documented crisis in leadership, due in part to the disruptive nature of AI and emerging technology.
Rachel Wlodarsky, Davin Carr Chellman
wiley +1 more source
IEEE 802.11b/g High Efficiency CMOS Power Amplifier with an Integrated Adaptive Bias Circuit
, 2007 本論文探討以UMC CMOS 0.18um RF製程來實現Doherty PA電路架構，以提高6dB-backoff 時的功率輸出效率。經由S參數的量測，在2.4GHz的頻段中，有10.6dB的小訊號增益。該電路的最大輸出功率與P1dB分別為22.6dB與21.4dBm。此時PAE最高可達33.6%，於P1dB點為32.6%，在6dB-backoff時仍高達21.1%的高效率值。由於晶片內部不需採用螺旋電感，其晶片面積僅666*999 µm2。The Doherty power ...
劉致元, Liu, Zhi-Yuan
core
Successive Cancellation of Power Amplifier Distortion for Multiuser Detection
, 2010 This paper presents an iterative interference suppression technique to cancel power amplifier (PA) distortion at the receiver. The focus is mainly on single carrier frequency division multiple access systems, and on removing the distortion created by ...
Fager, Christian +9 more
core +1 more source