Wireless communications products that depend on RF principles are everywhere these days, and the growth rate is astonishing. From cell phones and wireless PDAs to Wi-Fi-enabled laptops, Bluetooth ...

Finally, the DC offset introduced by the RF signal is measured by a digital multimeter. Note that a low-pass filter is used between the amplifier and the multimeter to prevent potential errors caused ...

After the critical circuits, we like to examine the printed-circuit board (PCB) stackup. Like the schematic, board stackup decisions are often made prior to routing and placement, so this is a good ...