Title :
Broad-band passive 90° RC hybrid with low component sensitivity for use in the video range of frequencies
Abstract :
A practical 90° hybrid covering the frequency range from 200 Hz to 2 MHz for single-sideband modulation and demodulation can be constructed using cascaded RC lattice networks. A differential phase shift within ± 6° of 90° can be maintained using 5 percent components.
Keywords :
Active inductors; Amplitude modulation; Arm; Bridge circuits; Demodulation; Inverters; Lattices; Poles and zeros; Radio frequency; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1971.8497
