Accession Number : ADD009527

Title :   Switching Quadrature Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hansen,James P

Report Date : 23 Mar 1982

Pagination or Media Count : 4

Abstract : A quadrature detector werein the I and Q quadraturely related signals are produced and processed in the same channel rather than parallel channels. A local oscillator feeds a 90 degrees phase splitter which produces a pair of quadrature signals. These are alternately fed to a balanced modulator for mixing with an input R.F. signal. The sum and difference frequency signals are fed through a low-pass filter which passes only the I and Q difference-frequency signals. These are then separated to provide two output signals corresponding to quadrature components of the input R.F. signal. (Author)

Descriptors :   *Patents, *Detectors, Switching, Parallel orientation, Dual channel, Channels, Filters, Local oscillators, Output, Difference frequency, Mixers(Electronics), Feeding, Signals, Orthogonality

Subject Categories : Cybernetics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE