Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Haedong Jang"'
Publikováno v:
BCICTS
The nonlinear parasitic components of high-power FET devices require tremendous amount of device characterization efforts. The recent nonlinear embedding technique can significantly expedite the design process by removing the time-consuming source/lo
Autor:
Richard Wilson, Haedong Jang
Publikováno v:
2018 IEEE/MTT-S International Microwave Symposium - IMS.
A new method for designing a broadband Doherty power amplifier has been developed. Using the proposed method, the dominant parasitic components of the power devices are effectively compensated. The peaking device is directly connected to the Doherty
Publikováno v:
2018 IEEE/MTT-S International Microwave Symposium - IMS.
This work introduces a new method for selecting the optimal Doherty power amplifier (PA) asymmetry ratio considering both the Doherty topology limitations, and the limitations of the transistor technology. The method is scalable with Doherty complexi
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:2764-2775
In this paper, the design, implementation, and measurement results of a new digital predistortion (DPD) method for a concurrent dual-band envelope tracking (ET) power amplifier (PA) system is presented. The PA gain is represented using a set of 3-D o
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 62:3436-3451
A novel procedure is introduced for designing Doherty amplifiers using the model-based nonlinear-embedding technique. First, the Doherty intrinsic load-matching network is designed at the transistor current-source reference plane with the main and au
Publikováno v:
IEEE Microwave Magazine. 14:134-139
In this article, a unique approach is presented to design and fabricate a circuit, rich in nonlinear contents with reduced sensitivity to bias, temperature, and load variations so that it can be used to validate the performance of LSNAs or NVNAs. Thi
Autor:
Richard Wilson, Christian Schuberth, Haedong Jang, Tim Canning, David Seebacher, Bayaner Arigong
Publikováno v:
2016 IEEE MTT-S International Microwave Symposium (IMS).
A new outphasing signal splitter for a radio frequency (RF) single input Chireix power amplifier without using digital signal processing is introduced. Input signal phase control versus power for outphasing operation is obtained by using only a linea
Publikováno v:
2016 IEEE MTT-S International Microwave Symposium (IMS).
The exponential growth in data traffic across the wireless infrastructure network has necessitated the development of RF power devices capable of transmitting these higher bandwidth signals. In addition, the devices must work in the complete system,
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
We developed a new asymmetric Doherty load modulation matching network using identical transistors for the main and auxiliary amplifiers. Asymmetric Doherty power amplifiers (PA) require a larger size transistor for the auxiliary PA than for the main
Publikováno v:
WAMICON 2014.