The proposed system provides a unique solution to these limitations.

The fundamental property of a CRLH antenna (i.e. backfire-to-endfire beam-scanning antenna, see figure 1) is used to radiate different frequencies in different directions (to perform a Fourier separation).

This signal is then sensed by various field probes (see figure 2) placed at specific locations in the far-field of the antenna. Finally, the probed signals are combined to form the spectrogram of the signal in real-time.

This system is fully tested and characterized with a first prototype (Simulation results available)

Digital Fast Fourier Transform (FFT) is at the heart of current spectrogram analyzers. It is performed numerically over stored buffer to obtain instantaneous spectral components of a test signal for plotting the spectrogram.
Because of the inherent limitations of FFT (computational requirements, trade-off between frequency resolution and time), current technologies are limited up to only a few hundred megahertz of acquisition bandwidth and to a spectrogram resolution of a few microseconds.

• Real-time monitoring of UWB signals
• Single shot signal measurement and characterization
• Time and frequency independent
• Almost no computing resources required

This technology is now fully tested in labs. We're seeking a strategic partner interested in moving to commercialization.