MODELING AND DESIGN OF ANTENNAS FOR RF WIRELESS SYSTEMS

Antennas are an important subcomponent for radio frequency (RF) wirele ss systems-oftentimes, performance improvements in the several dB rang e can be achieved by optimizing antenna design and position, which are very difficult to achieve with modifications to a radio. Antennas for RF wireless systems include portable RP remote antennas, for example for cellular phones, personal digital assistants (PDA's), handheld com puters, and local-area network (LAN), wide-area network (WAN), and per sonal-area network (PAN) adapters for laptop computers, and base stati on antennas for these applications. Antennas for systems such as these have stringent cost, performance, and form factor specifications, Thi s paper discusses the modeling and design of antennas for these applic ations, specifically a method of moments modeling tool which has been developed, special concerns in antenna design for portable RF remotes, and design of base station antennas.