Title :
Performance Evaluation of an Automatic Impedance Synthesizer Based on RF Switches
Author :
Sánchez, César ; De Mingo, Jesús ; Sáenz, Lucía ; García, Paloma ; Carro, Pedro Luis ; Valdovinos, Antonio
Author_Institution :
Electron. Eng. & Commun. Dept., Univ. of Zaragoza, Zaragoza
Abstract :
This paper presents a new design of an automatic impedance synthesizer based on RF switches and its performance. A study about the implementation has been carried out and two prototypes of 50 Omega and 75 Omega of characteristic impedance have been successfully constructed. As switching elements in the tuning network we employ GaAs MMIC RF switches. An evaluation of impedance matching zones in the Smith chart has been carried out using simulations, taking into account both the return losses and the dissipative losses due to the physical implementation of the prototypes. Finally two prototypes of 50 Omega and 75 Omega have been constructed, verifying its correct operation.
Keywords :
MMIC; impedance matching; microwave switches; GaAs MMIC RF switches; automatic impedance synthesizer; dissipative loss; impedance matching; performance evaluation; return loss; Capacitors; Communication switching; Gallium arsenide; Impedance; MMICs; Network topology; Prototypes; Radio frequency; Switches; Synthesizers;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073786
