Accession Number : ADD017577

Title :   Variable Phase Sine Wave Generator for Active Phased Arrays.

Descriptive Note : Patent, Filed 30 Sep 92, patented 6 Jun 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Waters, William M

Report Date : 06 Jun 1995

Pagination or Media Count : 8

Abstract : A waveform generator is provided for generating a high frequency waveform. A pulse generator provides a pulse train at a low frequency. A pulse converter converts the pulse train into an alternatingly positive and negative groups of pulses. A bandpass filter passes the alternatingly positive and negative groups of pulses in a frequency band centered at the high frequency to output the generated waveform at the high frequency. When the groups of pulses are a pair of pulses, a sine wave is output from the bandpass filter. A pulse delay circuit can be used to variably delay the pulse train and thereby cause a phase change in the generated waveform.

Descriptors :   *PATENTS, *FREQUENCY SHIFT CONVERTERS, *WAVEFORM GENERATORS, OUTPUT, PHASE TRANSFORMATIONS, PULSE GENERATORS, FREQUENCY BANDS, BANDPASS FILTERS, PHASED ARRAYS, SINE WAVES, PULSE TRAINS, DELAY CIRCUITS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE