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The paper discusses the application of VLSI technology to implement the functions of TSG of a radar system using VHDL with behavioral model, as the HDL and targeting it to a FPGA. The TSG is the heart of radar application to generate timing and control signals to operate radar in different phases like detection, tracking and acquisition, and hold mode. The advantage of TSG design with FPGA is that...
We present a high-dynamic range (HDR) X-band LNA implemented in silicon-germanium (SiGe) technology targeting high-performance radar and wireless communications applications. To our knowledge, this is the first Si-based LNA to achieve over 30 dB gain, 30 dBm of OTOI, and 2 dB noise figure at X-band. System-level performance simulations clearly show the benefits of using HDR LNAs in the receive chain...
This paper describes the design and performance of a low-cost synthesized FMCW radar module, operating in S band. The bi-layer PCB contains a frequency-agile low phase-noise synthesizer and three identical coherent receive-channels. The transmit channel has an automatic power control system that reduces the output power when a large reflection causes the receiver input level to exceed the linear input...
In contrast to what is generally assumed, the evolution of fT beyond the 45 nm CMOS generation may not be able to follow the ITRS roadmap. Moreover, the gap between intrinsic device and circuit performance is expected to increase with new generations, due to an increase in interconnect parasitic capacitance in the transistor pcell area. Such problems are not expected for SiGe processes. The move to...
Silicon offers a new set of possibilities and challenges for RF, microwave, and millimeter-wave applications. While the high cutoff frequencies of the SiGe heterojunction bipolar transistors and the ever-shrinking feature sizes of MOSFETs hold a lot of promise, new design techniques need to be devised to deal with the realities of these technologies, such as low breakdown voltages, lossy substrates,...
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