RF Circuits for 5G Applications

15Non-Linear Microwave Circuit Design Using Multi-Harmonic Load‑Pull Simulation Technique

Veral Agarwal¹* and Rachit Patel²

¹Nagarro Software Private Limited, Gurugram, Haryana, India

²Department of Electronics and Communication Engineering, ABES Institute of Technology Ghaziabad, Uttar Pradesh, India

Abstract

In this chapter we will learn about the practical applications of the multi harmonic load-pull simulation technique of the design of nonlinear microwave circuits. A structured project using multiharmonic load-pull simulation delve the results of every harmonic ending on the circuit staging also finding flawless load at every harmonic. Systems performance can be improved notably if we use this systematic design procedure. This approach comes up with an efficient means of nonlinear microwave circuit design. Its superiorities are embellishing for the design of frequency doubler and two power amplifiers.

Keywords: Multiharmonic load-pull, non-linear microwave circuit design, frequency doubler, power amplifiers

15.1 Introduction

In recent times as we all know about the speedy evolution of wireless communication. This development makes classification of nonlinear circuits such as power amplifiers, oscillators, and frequency doubler a critical component of the entire communication system. Good designing of such nonlinear circuits can significantly reduce the cost as well as improves the performance of the system.

The harmonic balance (HB) technique has extensively been used ...