Title :
Design of a microwave PIN diode complex weight circuit
Author :
Cheah, Y.C. ; Paoloni, F.J.
Author_Institution :
University of Wollongong, Department of Electrical & Computer Engineering, Wollongong, Australia
Abstract :
The letter describes a simple PIN diode circuit which is capable of producing amplitude and phase weighting at X-band frequencies with relatively high definition. The device consists of a pair of variable attenuators and one bit 180° phase shifters which enables the selection of weights for all four quadrants of the complex plane. The design circumvents the need of a highly nonlinear direct current control circuit for the PIN diodes so that it can be readily interfaced with the standard microprocessor hardware.
Keywords :
phase shifters; semiconductor diodes; solid-state microwave circuits; X-band frequencies; amplitude weighting; microwave PIN diode complex weight circuit; phase shifters; phase weighting; variable attenuators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840559
