Chumnarn Punyasai

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This paper presents a hardware design of an ultrasound imaging system for transmitting pulses and acquiring echo signals to/from individual elements of an array transducer. Since most of the ultrasound imaging systems in the market provide only image files after reconstruction, the presented hardware can be controlled by a computer in order to transmit(More)
The principle of electron force microscopy is a well-known phenomenon of sensing in high sensitive MEMS based accelerometers & AFM. We intend to extend this concept towards development of a gyroscope, based on the fact that gyroscope sensors are accelerometers, but with a drive mode. In this paper we present a design of a MEMS based tunneling gyroscope(More)
Low-noise amplifier (LNA) is a very critical component in terms of its functionality in a transceiver. This paper presents design of a 20-GHz low-noise amplifier in TSMC 0.18μm technology. The design utilizes multi-stage topology which includes three transistors. First-stage is a single ended common-source topology while the second stage is current(More)
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