Abstract
Modern radio communication systems have to provide higher and higher data rates. As conventional methods like using more bandwidth or higher order modulation types are limited. Multiple antenna technologies (MATs) have gained much attention in the last few years because of the huge gain. MATs can enhance the communication reliability and the channel capacity levels. Furthermore, multiple antenna systems can have a big contribution to reduce the interference both in the uplink and the downlink. To increase the communication systems reliability, multiple antennas can be installed at the transmitter or/and at the receiver. The idea behind multiple antenna diversity is to supply the receiver by multiple versions of the same signal transmitted via independent channels. In modern communication transceiver system, primary aims are to direct high power RF signal from transmitter to antenna while preventing leakage of that large signal into more sensitive front-end of receiver. So, a Single-Pole Double-Throw (SPDT) Transmitter/Receiver (T/R) Switch plays an important role. In this paper, analysis and design of distributed subarray SIMO (DS-SIMO) microstrip antenna system with SPDT-T/R switch has been introduced and investigated. All the entire proposed antenna system has been evaluated using a commercial software. The final proposed design has been fabricated and the radiation characteristics have been illustrated. The measured s-parameters of the proposed structure can be analyzed with network analyzer to demonstrate the proposed antenna system performance to meet the requirements for consumer receiving diversity applications.
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