Inventors:
Robert P. Levreault - Norfolk MA
Assignee:
The Charles Stark Draper Laboratory - Cambridge MA
International Classification:
H04K 102
Abstract:
An intermediate frequency (IF) amplifier having two separate signal paths through single amplification hardware. A radio frequency (RF) signal is separated into two identical signals which are separately processed to provide code and carrier signals. These signals are combined in quadrature and amplified together in the same IF strip, followed by two channel quadrature detection. The IF amplifier of the present invention is typically used in signal processing, and in particular, in spread spectrum receivers. The quadrature multiplexed IF channel affords uniform gain, bandwidth, phase and delay characteristics between the two separate code and carrier signal paths.
