Challenges in modern wireless personal communications

This papers reviews the commercial wireless personal communications available. The diverse systems offer a wide range of services with different quality, data types, bit rates, and coverage ranges. The salient features of the modern communications systems from cordless phones up to mobile satellite services are discussed. The key issues related to the development of active devices for commercial wireless receivers are examined. This paper focuses on the RF portion of the wireless commercial applications, and specifically on the requirements for digital pagers, cellular phones, and other commercial technologies.