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Design and Optimization of A Broadband X‐Band Bidirectional Amplifier
Author(s) -
Donelli, Massimo,
Saavedra, Carlos,
Rukanuzzaman Md
Publication year - 2013
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27712
Subject(s) - broadband , amplifier , electronic engineering , microwave , particle swarm optimization , microstrip , bandwidth (computing) , engineering , computer science , electrical engineering , telecommunications , cmos , machine learning
This article presents the design of a simple and inexpensive X‐band bidirectional amplifier based on two microstrip quadrature hybrid rings and two low cost microwave monolithic integrated circuit monolithic amplifiers. Each subsystem of the amplifier was designed and optimized, by means of an optimization methodology to obtain the best performances. In particular, the design problem was recast as an optimization one by defining suitable cost functions that are then minimized with an evolutionary optimization technique, namely the particle swarm optimizer. An experimental prototype has been designed, developed, and measured. The obtained results demonstrate the capabilities of the proposed broadband bidirectional amplifier and envisage future and possible advances in the application of such devices for the development of advanced telecommunications systems. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1730–1735, 2013