An open architecture receiver for CDMA2000 base station

The explosive growth of the internet and the continued increase in demand for all types of wireless services (voice and data) are stimulating the demand for large increments in capacity, data rates, and supported services (e.g., multimedia services). The "International Mobile Telecommunication in the year 2000" (IMT-2000) international standard developed by the International Telecommunication Union (ITU) satisfies the requirements for next-generation data and voice services that are supported in new as well as existing frequency bands.; CDMA2000 is a code-division multiple access (CDMA) version of IMT-2000, developed to provide higher capacity in the same amount of spectrum. It was created for third-generation (3G) mobile wireless technology. New CDMA2000 base station (BS) systems were designed to help mobile operators increase capacity and protect their network investment as they migrate from second generation (2G) to next-generation (3G) technology.; The goal of this project was to design, fabricate and test the analog portion of an open architecture CDMA2000 BS receiver to serve as the receiver in a CDMA2000 antenna and propagation test facility.; Agilent ADS was the primary simulation tool used in the design. The radio hardware was fabricated utilizing discrete and integrated circuit hardware on a printed circuit board. Testing was conducted to verify the performance of the hardware and compare with the design goals.; Testing has revealed that channel selection and image rejection perform as expected while the dynamic range testing did not yield the desired result. Performance of the circuit was limited by self and external interference resulting from the absence of an enclosure and imperfect circuit layout in this initial design. Improvements to this are presented.