GaAs MMICs for wireless applications

Two important factors generate outstanding opportunities for GaAs MMICs in wireless communications systems. The first is the continuing move towards higher operating frequencies. PCN, PCS, JDC, PHS and DECT are all between 1.5 and 2 GHz. A virtually world wide, license free ISM band exists at 2.4 GHz and local loop telephony services have been licensed at various frequencies between 1 and 4 GHz. Other emerging opportunities include the European standard for High Performance Radio Local Area Networks (HIPERLAN) at 5.2 GHz and a number of consortiums developing global Mobile Satellite Services (e.g. Iridium, Globalstar, Odessey and Inmarsat). The second factor is the drive to smaller, lighter and more power efficient products. This paper outlines the ways in which GaAs MMICs can target these opportunities and details examples of existing MMICs which address the wireless market