Design and Analysis of RF Front-End MIMO System Based on Direct Conversion Transceiver For LTE and Wireless Communication Applications

Wireless operators are always looking for new ways to increase the spectral efficiency of their networks in order to keep up with the enormous rise in wireless usage. This growth is in part due to the proliferation of smart phones and tablets, as well as a rising population of application developers. The Multiple Input/Multiple Output (MIMO) technology, which had its first broad commercial appearance in 802.11n systems, is currently acquiring substantial actual momentum in Mobile Wireless Wide Area Network with the advent of WIMAX and LTE networks. MIMO is a critical network technology that significantly improves network throughput, capacity, and coverage. This paper introduces and analyses the MIMO system design structure with direct conversion transceiver (DCTR) using microstrip printed technology. The proposed front-end design structure was fabricated and measured in an antenna laboratory using a network analyzer. Measured and simulated results show that the system works well enough to satisfy the demands of LTE and wireless communication applications.