Multi-Channel, High-Power C-Band Array Development using Multifunction MMICs

The development of a multi-channel, high-power C-band (4.5 - 6.5 GHz) transmit/receive (T/R) module line replaceable unit (LRU) that leverages innovative multifunction monolithic microwave integrated circuits (MMICs) and commercial-off-the-shelf (COTS) components is presented here. These multifunction MMICs provide core RF functionality for the purpose of reducing design complexity, form-factor/area, and cost per channel. A wideband Vivaldi antenna was designed, fabricated, and tested to enable the demonstration of an integrated multi-channel (8), high-power RF personality. The integrated RF personality includes a 12-element linear array (only 8 of the 12 elements are excited), the T/R modules, all supporting bias circuitry, digital control, and thermal management. In transmit mode, each channel has the capability to output up to 25 W in continuous wave (CW) operation.