Title :
A C-band double-balanced power amplifier
Author :
Poiré, Philippe ; Caron, Martin ; Ghannouchi, Et Fadhel M
Author_Institution :
Dept. de Genie Electr. et Inf., Ecole Polytech. de Montreal, Que., Canada
Abstract :
A 4 GHz amplifier capable of producing a minimum of 10 W has been designed using a double-balanced structure. This employs 90° and 180° couplers, making possible performance characteristics such as good matching and reduction in second harmonic power. The technology chosen for implementation of the circuit is that of a microstrip line with a substrate of 2.33 and thickness 31 mil. Simulations foresee an output power of 41 dBm, a midband gain of 22 dB and reflections of -43 and -48 dB at input and output respectively. The use of 180° couplers allows a 13 dB reduction in second harmonic level with respect to a circuit using couplers without rejection
Keywords :
differential amplifiers; harmonics; microstrip circuits; microstrip directional couplers; microwave power amplifiers; 10 W; 180° couplers; 22 dB; 4 GHz; 90° couplers; C-band double-balanced power amplifier; SHF; double-balanced structure; input; microstrip line; midband gain; output; output power; reflections; rejection; second harmonic level reduction; simulations; substrate; Differential amplifiers; Harmonic analysis; Microstrip circuits; Microstrip directional couplers; Microwave power amplifiers;
Conference_Titel :
Electrical and Computer Engineering, 1994. Conference Proceedings. 1994 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-2416-1
DOI :
10.1109/CCECE.1994.405844
