This invention relates to a transmit/receive module for a high power Active
Phased Array Antenna system operating in L-band based upon a combination
of Hybrid Microwave Integrated Circuit (MIC) as well as Monolithic
Microwave Integrated Circuit (MMIC) technology. The transmit/receive
module includes a power monitoring means, transmitter protector means, and
a receiver protector means. The module comprises a signal transmit chain
incorporating power conditioner and a signal receive chain incorporating
control electronics and bias- sequencer modulator. The transmit chain has
switching means for switching the module to transmit mode which is
connected to the transmit amplifier chain through a shared digital phase
shifter. The amplified signals from the transmit amplifier chain are
conveyed to a duplexer means. In receive mode, the receive chain receives
signal through drop-in circulator and high power switch and comprises of
high power limiter, low noise amplifier means, and a digital attenuator
means connected to the shared digital phase shifter through T/R switch
means. Electronic means are connected through integrated control
electronic., bias sequencer modulator and power conditioner for
controlling the operation of the device.
