Millimeter wave pulsed radar system

A millimeter wave pulsed radar system comprising:

• a circuit card assembly having microwave monolithic integrated circuit (MMIC) chips and RF, power and control circuit components mounted thereon that form a radar synthesizer comprising a voltage controlled oscillator/phase locked loop (VCO/PLL) circuit, a direct digital synthesizer (DDS) circuit, and a quadrature modulator circuit that are operative with each other for generating an intermediate frequency and local oscillator signal (IF/LO signal), and a radar transceiver operative with the radar synthesizer for receiving the IF/LO signal, and comprising a transmitter section that multiples the IF/LO signal up to a millimeter wave (MMW) radar signal for transmission, and a receiver section that receives and mixes a MMW radar signal and the IF/LO signal and down converts the MMW radar signal to I/Q baseband signals that are later digitized and processed;
• a base on which the circuit card assembly is positioned, including waveguide ports and a thermal path formed therein and positioned below any MMIC chips and circuit components that produce excess heat during operation;
• and
• a substrate cover made of the same material as the circuit card assembly secured on the circuit card assembly and including metallization and RF channelization.