66 citations · 147 across the 8 of their papers we have counts for
8 papers
A Multirate Transient Simulation Technique for Circuits described by Integro-Differential Equations
Hans Georg Brachtendorf, Kai Bittner
The multirate partial differential equation (PDE) technique is considered as one of the most powerful methods for the simulation of radio frequency (RF) circuits. The method reform…
Latency Exploitation in Wavelet-based Multirate Circuit Simulation
Kai Bittner, Hans Georg Brachtendorf
The simulation of radio frequency (RF) circuits is one of the severest problems in Design Automation: the information signal or envelope is modulated by a carrier signal with a cen…
Trigonometric Splines for Oscillator Simulation
Kai Bittner, Hans Georg Brachtendorf
We investigate the effects of numerical damping for oscillator simulation with spline methods. Numerical damping results in an artificial loss of energy and leads therefore to unre…
Adaptive wavelet-based method for simulation of electronic circuits
Kai Bittner, Emira Dautbegovic
In this paper we present an algorithm for analog simulation of electronic circuits involving a spline Galerkin method with wavelet-based adaptive refinement. Numerical tests show t…
Wavelet Algorithm for Circuit Simulation
Kai Bittner, Emira Dautbegovic
We present a new adaptive circuit simulation algorithm based on spline wavelets. The unknown voltages and currents are expanded into a wavelet representation, which is determined a…
Fast Algorithms for Adaptive Free-Knot Spline Approximation Using Non-Uniform Biorthogonal Spline Wavelets
Kai Bittner, Hans Georg Brachtendorf
New algorithms for fast wavelet transforms with biorthogonal spline wavelets on nonuniform grids are presented. In contrary to classical wavelet transforms, the algorithms are not…
Adaptive Multi-rate Wavelet Method for Circuit Simulation
Kai Bittner, Hans Georg Brachtendorf
In this paper a new adaptive algorithm for multi-rate circuit simulation encountered in the design of RF circuits based on spline wavelets is presented. The circuit ordinary differ…
Optimal frequency sweep method in multi-rate circuit simulation
Kai Bittner, Hans Georg Brachtendorf
Purpose -- RF circuits often possess a multi-rate behavior. Slow changing baseband signals and fast oscillating carrier signals often occur in the same circuit. Frequency modulated…