Title :
Bi-directional amplifiers for half-duplex transceivers
Author :
Archer, J.W. ; Sevimli, O. ; Batchelor, R.A.
Author_Institution :
CSIRO, Epping, NSW, Australia
Abstract :
This paper reports a unique bi-directional amplifier (BDA) circuit that combines the symmetry of common-gate connected HEMTs with topologically mirrored input and output matching, Bi-directional behavior of the BDA is demonstrated on fabricated circuits, with identical performance in forward and reverse directions. Between 40 and 45 GHz, 10-dB gain and 8-dB input and output return losses have been measured.
Keywords :
HEMT integrated circuits; MMIC amplifiers; impedance matching; millimetre wave amplifiers; transceivers; 10 dB; 40 to 45 GHz; 8 dB; BDA; MMIC architectures; bi-directional amplifiers; common-gate connected HEMTs; half-duplex transceivers; millimetre-wave transceivers; output return losses; topologically mirrored input/output matching; Bidirectional control; Diodes; Distributed parameter circuits; Frequency; Gain; Gallium arsenide; HEMTs; MMICs; Prototypes; Transceivers;
Conference_Titel :
GaAs IC Symposium, 1999. 21st Annual
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-5585-7
DOI :
10.1109/GAAS.1999.803769
