Title :
A High-Speed Wideband L-Band Tunnel Diode Frequency Deviator
Author_Institution :
Bell Telephone Labs., Holmdel, NJ
fDate :
10/1/1967 12:00:00 AM
Abstract :
An L-band tunnel diode frequency deviator which can be tuned over an octave bandwidth by a 160-millivolt change in input voltage is described. By using a nonreactive input circuit, a low-frequency prototype deviator has been tuned over a 50-percent frequency range in less than one RF cycle and an L-band deviator has had its frequency shifted and returned to its original value so that the output phase was shifted by ±90 degrees in 4.25 ± 0.25 cycles (3.27 ns).
Keywords :
Carrier systems; Frequency modulation; Microwaves; Millimeter waves; Modulation; Phase modulation; Diodes; L-band; Microwave oscillators; Phase modulation; Power harmonic filters; Radio frequency; Tunable circuits and devices; Voltage; Voltage-controlled oscillators; Wideband;
Journal_Title :
Communication Technology, IEEE Transactions on
DOI :
10.1109/TCOM.1967.1089653
