A Compact W-Band TE10-TE01 Mode Converter for Industrial Radar Applications

Today, radar-based sensors are widely used in various industrial applications. Apart from standard distance and velocity measurements, further radar-based analytical measurements came into focus in recent years. Typically, radars excite the fundamental TE10- or TE11-mode using rectangular waveguides or circular waveguides, respectively. Depending on the application and the chosen dimension of the waveguides, higher order modes must be considered with various impacts on the measurement accuracy. Especially for large distances in pipes or in small vessels underlying strong movements in contrast, the TE01 mode is advantageous and gathers more and more relevance in industrial applications.