A circuit verification device includes emulators to which circuit portions obtained by dividing the circuit are implemented. The radar apparatus also includes: a wireless part for generating a high-frequency signal supplied to the feeder part, and converting a reflected high-frequency signal to a medium-frequency signal; and a circuit part for controlling the high-frequency signal and processing the medium-frequency signal. 33, and having a length up to about 5000 nm and a width up to about 500 nm. consumer electronic devices as a quick-start help reference system for users. The fins may highest at mid-width of the near-wall inner surface. The power input terminal is coupled to the anode of the LED via the current limiting resistor.