Title :
A simple method for the gain improvement of matrix distributed amplifiers
Author :
Hamidi, Emad ; Mohammad-Taheri, Mahmoud
Author_Institution :
Dept. of ECE, Tehran Univ., Iran
fDate :
30 Oct.-2 Nov. 2005
Abstract :
A simple method for the gain improvement of matrix distributed amplifiers is presented. The method is based on modifying the central transmission line of the matrix amplifier without any changes in the input and output transmission lines. In the new method, the termination impedances in the central transmission line are modified and replaced by an impedance matching circuitry. It has been shown that the new method can significantly improve the gain while preserving the input and output return losses of the amplifier.
Keywords :
distributed amplifiers; impedance matching; transmission lines; gain improvement; impedance matching circuit; matrix distributed amplifiers; transmission lines; Bandwidth; Capacitance; Distributed amplifiers; Distributed parameter circuits; Frequency; Impedance; Inductance; MMICs; Operational amplifiers; Transmission line matrix methods;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium, 2005. CSIC '05. IEEE
Print_ISBN :
0-7803-9250-7
DOI :
10.1109/CSICS.2005.1531840
