Silicon Radar SiRad Easy, Manual, Page: 4 / 14

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Evaluation Kit SiRad Easy® r4, SiRad Easy® & SiRad Simple®
User Guide Version 2.5 19-Nov-2021
1 Overview
SiRad Easy® r4, SiRad Easy® and SiRad Simple® evaluation kits are experimental showcase systems for Silicon
Radar’s integrated
IQ transceivers , with antennas in chip / package and on board. The systems measures distance
and velocity using FMCW or CW radar principles (frequency modulated continuous wave or continuous wave
principles).
SiRad Easy® r4 consists of an evaluation baseband board that can hold exchangeable radar front ends (24 GHz to
300 GHz), all stackable as shown in Figure 1 (left).
SiRad Easy® consists of an evaluation baseband board and a microcontroller board. The baseband can hold
exchangeable radar front ends (24 GHz to 300 GHz), all stackable as shown in Figure 1 (middle).
SiRad Simple® consists of one 122 GHz evaluation board and a lens assembly as shown in Figure 1 (right).
The evaluation kits come with a free graphical user interface (WebGUI) - for user-friendly parametrization of the
baseband board and multiple visualization modes for radar data. Due to the flexibility of the system, it can be
used to change radar parameters on-the-fly, to learn the basics of radar signal processing, or to find specific
parameter settings for a certain application.
Figure 1 SiRad Easy® r4 (left), SiRad Easy® (middle) and SiRad Simple® (right)
1.1 Features

Serial/USB or WiFi communication to PC,

microcontroller for triggering, signal processing and target recognition for up to 16 targets
simultaneously, transfer to the host system,

web-based graphical user interface to change relevant parameters, plot the FFT of the baseband
channels, display the distance and velocity measurements and the target list,

phase locked loop (PLL) to adjust the start and stop frequencies,

programmable FMCW / CW parameters,

analog signal conditioning to amplify and filter the I and Q output signals of the transceiver,

Analog-to-Digital-converter to digitize the I and Q receiver signals,

DC-DC conversion to provide single supply from USB or an external DC supply.