Download now Free registration required
Electrically small antennas are widely used in wireless communications applications because they have near omni-directional radiation. Development of wearable computer systems has been growing rapidly: electrically, as well as physically, small antennas are important requirements to the successful deployment in the consumer market. It is undesirable to use bulky cables to connect to these wearable-mobile devices, so communication will be wireless, using an antenna. The biggest measurement challenge is to minimise reflections from antenna supports and feed cables. For reasons of space or cost small antennas may not have adequate baluns, and this can result in common mode currents flowing on any cable attached to them. These currents form an integral part of the antenna's radiation pattern.
- Format: PDF
- Size: 1012.1 KB