In this paper, we present new results in the development of a broad-band spatial power-combining system implemented in a standard X-band waveguide environment. Using 24 off-the-shelf GaAs monolithic-microwave integrated-circuit (MMIC) power amplifiers integrated with tapered-slot antenna arrays, the new combining circuit produced up to 126-W maximum power output with a gain variation of 1.9 dB ...

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CMOS Integrated Circuit Design for Ultra-Wideband Transmitters and Receivers. (August 2009) Rui Xu, B.S. , Southeast University, China; M.S., Southeast University, China Chair of Advisory Committee: Dr. Cam Nguyen Ultra-wideband technology (UWB) has received tremendous attention since the FCC license release in 2002, which expedited the research and development of UWB technologies on consumer p...

defuzzifier circuit is one of the most important parts of fuzzy logic controllers that determine the output accuracy. the center of gravity method (cog) is one of the most accurate methods that so far been presented for defuzzification. in this paper, a simple algorithm is presented to generate triangular output membership functions in the mamdani method using the multiplier/divider circuit and...

This study presents a flexible wireless electronic skin (e-skin) sensor system that includes a multi-functional sensor device, a triple-mode reconfigurable readout integrated circuit (ROIC), and a mobile monitoring interface. The e-skin device's multi-functionality is achieved by an interlocked micro-dome array structure that uses a polyvinylidene fluoride and reduced graphene oxide (PVDF/RGO) ...

The principle of recursive filters is well known in digital filtering. This paper deals with active recursive filters. A new design approach is presented. It will be shown that how active elements can be used in the design of amplification elements and large microwave time delay. The analytical and computer-simulated results will be presented for an active bandpass filter in the C-band. Key-Wor...

CMOS" refers to both a particular style of digital circuitry design, and the family of processes used to implement that circuitry on integrated circuits (chips). CMOS circuitry in VLSI dissipates less power when static, and is denser than other implementations having the same functionality. As this advantage has grown and become more important, CMOS processes and variants for VLSI have come to ...

We present a fully integrated Phase Locked Loop in an advanced 45nm CMOS technology. The loop filter is integrated on chip under the voltage-controlled oscillator inductor, resulting in significant area savings. The whole PLL measures only 280um by 150um. The PLL has a dual-band output for 2-2.5GHz and 4-5GHz. The circuit operates from a 0.85V supply and consumes 15.3mW for a -120dBc/Hz phase n...