Small UWB Antennas for Wireless USB Dongle Attached to Laptop Computer

Abstract

This paper investigates the application of a small ultra-wideband (UWB) antenna with a reduced ground-plane effect in a wireless USB dongle, which is attached to a laptop computer. The antenna is printed onto a piece of PCB and embedded into a wireless universal serial bus (USB) dongle. The radiator may be co-planar or perpendicular to the PCB. The impedance and radiation characteristics of the proposed antennas are examined when the antennas are placed in free space as well as attached to a laptop computer.