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This paper presents a high linearity and low power up-conversion mixer at 3.0-5.0 GHz for UWB applications in TSMC 0.18-μm CMOS technology. The design based on Gilbert-cell active double-balanced mixer using a capacitor located in parallel with the intrinsic gate-source capacitor of a transconductance stage for high linearity. The source degeneration inductors helps to improve linearity...
A 12-bit Digital-analog converter (DAC) with pseudo Fibonacci sequence was fabricated in a 0.18μm CMOS technology. Proposed 12-bit DAC is composed of a 6-bit pseudo Fibonacci sequence and 6bit unary sequence. The power consumption of the proposed DAC is expected lower than that of conventional binary and unary DAC. The simulated power consumption of proposed 12-bit DAC is 40mV at 3.3V supply voltage...
This paper presents the design of thin planar one-sided directional slot antenna on patterned circuit board. Our proposed planar antenna has the matching circuit composed of coplanar waveguide (CPW) transmission line, interdigital gap, a top metal layer and a bottom floating metal layer. In order to realize the one-sided directional properties, the length of the top metal layer is adjusted, and at...
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