Solutions for Low Cost Radar Verification Testing with USB Sensor-Based Scalar Network Analysis
应用文章
Overview
Maximizing radar performance requires thorough analysis and careful optimization of each component and subassembly in the radar system. The effects of signal losses caused by system components in the transmit path are directly characterized by the transmit/receive loss terms in the radar range equation.
Generally, a radar transmitter is the most costly component of the system with the highest power consumption, most stringent cooling requirements, and greatest influence on system performance. Power can be expensive and losses directly reduce the effective power of the radar: As an example, a 1 dB loss has the same impact as a 1 dB reduction in power. When transmitting 1 MW of power, a 1 dB increase to compensate for a loss can be expensive. The more losses can minimized, the better. Loss measurements are especially important for components such as filters, duplexers, and circulators that are located after the transmit power amplifier or before the low-noise amplifier in the receiver.