AWR recently published a new white paper, The Advantages of Multi-rate Harmonic Balance Technology. To make harmonic balance analysis viable, AWR has pioneered a multi-rate harmonic balance (MRHB) technology within its APLAC family of harmonic balance and time-domain simulators. The capabilities provided with MRHB make it possible to solve entire complex subsystems such as mobile phone transceivers in a practical amount of time. The AWR white paper traces the use of harmonic balance in solving microwave problems, describes MRHB technology, and provides examples of its effectiveness when compared with traditional harmonic balance simulators.
The Advantages of Multi-rate Harmonic Balance Technology Pioneered by AWR
Harmonic balance (HB) analysis is a method used to calculate the nonlinear, steady-state frequency response of electrical circuits. It is extremely well-suited for designs in which transient simulation methods prove acceptable, such as dispersive transmission lines in which circuit time constants are large compared to the period of the simulation frequency, as well as for circuits that have a large number of reactive components. In particular, harmonic balance analysis works extremely well for microwave circuits that are excited with sinusoidal signals, such as mixers and power amplifiers.
Traditional harmonic balance analysis continues to be a core component in the designer’s toolbox, but is limited in its ability to solve the large, high-frequency circuits with many signal sources that are becoming more and more prevalent in today’s complex designs. The intelligent frequency selectivity and other innovative features within AWR’s patentpending MRHB technology transcend the shortcomings of traditional harmonic balance and enable designers to solve these complex circuits in significantly shorter time and with more accuracy.
More information: The Advantages of Multi-rate Harmonic Balance Technology Pioneered by AWR (pdf)