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The design of a dual-channel broadband millimeter-wave receiver front-end for the next generation mobile communication is presented in this article. The front-end operates at 28GHz with 2GHz and 500MHz bandwidth in radio frequency (RF) and immediate frequency (IF) respectively. A scheme of single downconversion is used and a compact substrate integrated waveguide (SIW) bandpass filter is designed...
Implementation of a low cost wideband multi-channel up-convertor for future wireless communication System is reported in this paper. The up-convertor converts the IF signal of 1.45 GHz to the RF signal of 6 GHz-6.5 GHz, the channel bandwidth is 100 MHz. In order to obtain wideband LO and reduce the cost, the scheme of frequency multiplication is employed in the design of the LO. System block diagram...
In this paper, the development of an RF transmitter for mobile communication systems with high data rates and large spectrum efficiency in microwave frequency band is presented. The RF transmitter operates in the 6GHz frequency band with 500MHz signal width. The transmitter has good performance as excellent linearity, high dynamic range, low EVM, and good flatness. The transmitter has a wide channel...
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