Zobrazeno 1 - 10
of 215
pro vyhledávání: '"A.F.M. Anwar"'
Publikováno v:
Solid-State Electronics. 50:1041-1045
We present a modified expression for PhiB that takes into account the effect of total polarization and the 2DEG concentration in GaN at the GaN/AlGaN heterointerface through the incorporation of Schottky barrier lowering
Publikováno v:
Solid-State Electronics. 50:1051-1056
This paper presents simulated DC characteristics of an AlGaN/GaN HEMT along with corroborating experimental measurements for validation. GaN-based HFETs are vigorously pursued for possible applications in high power presented in I. Daumiller et al. (
Publikováno v:
Solid-State Electronics. 48:1849-1853
The dependence of gain compression on the Al-mole fraction and the thickness of the AlGaN barrier layer are reported for typical undoped supply layer AlGaN/GaN HFETs using a physics-based model. The gain compression is calculated using a large signal
Autor:
A.F.M. Anwar, Syed S. Islam
Publikováno v:
International Journal of High Speed Electronics and Systems. 14:853-859
SPICE model parameters are extracted from reported experimental data. The model is implemented in the Cadence Affirma Analog Circuit Design Environment and Spectre simulator is used to simulate class-E power amplifier and ring voltage controlled osci
Publikováno v:
International Journal of High Speed Electronics and Systems. 14:750-755
The dependence of microwave performance of GaN/AlGaN High Electron Mobility Transistors (HEMTs), namely the unity gain current cut-off frequency (fT) and the maximum oscillation frequency (fMAX), are reported as a function of the mole fraction of Al
Publikováno v:
IEEE Transactions on Electron Devices. 51:846-853
A physics-based model for GaN MESFETs is developed to determine the frequency dispersion of output resistance and transconductance due to traps. The equivalent circuit parameters are obtained by considering the physical mechanisms for current collaps
Autor:
A.F.M. Anwar, Syed S. Islam
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 52:1229-1236
RF power performances of GaN MESFETs incorporating self-heating and trapping effects are reported. A physics-based large-signal model is used, which includes temperature dependences of transport and trapping parameters. Current collapse and dc-to-RF
Autor:
Kuo-Wei Liu, A.F.M. Anwar
Publikováno v:
Solid-State Electronics. 47:763-768
An analytical model to evaluate device’s quantum well (QW) properties, current–voltage (I–V) characteristics, smallsignal parameters and noise property for InAlAs/InGaAs/InAlAs/InP high electron mobility transistors is presented.A self-consiste
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 51:677-683
Hawkins' isothermal model developed to study noise in bipolar junction transistors (BJTs) is modified to investigate bias-dependent noise in heterojunction bipolar transistors (HBTs) by incorporating thermal effects. It is shown that the inclusion of
Publikováno v:
Solid-State Electronics. 47:333-337
A quantum mechanical analysis of the gate current and trapped charge inside oxide layer of an enhancement type MOSFET has been presented in this paper. The effects of the impurity atoms inside oxide layer on the gate current and trapped charge have b