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This paper presents an flip-chip assembled 60GHz CMOS receiver front-end. The receiver front-end consists of a cascode LNA, a balun, a harmonic mixer, and an IF amplifier fabricated by 90nm CMOS. The flip-chip assembled cascode LNA performs 31.1dB gain as well as on-wafer probing with NF of 5.8dB and output P1dB of −3.9dBm at 60GHz while consuming 26.9mW. The flip-chip assembled receiver front-end...
Distance to target is fundamental and very important information in many engineering fields. Many distance measurement methods with sound utilize the time delay of reflected wave which is measured with reference to transmitted one. This method, however, can not measure short distance because the transmitted wave, which has not attenuated enough as of reception of reflected waves, suppresses the reflected...
Speech-recognition rates decrease in noisy environments. The body-conducted speech, conducted in solids such as body and skins, has a noise-robust characteristics and can be served for recognition systems even in 98 dBSPL (-20 dBSNR) noise environments. However, the body-conduction can not capture high frequency sounds. Conventional methods to improve sound quality of body-conducted speeches need...
The number of disorders associated with cancer of the pharynx has recently increased, and many require surgical removal of the pharynx. Although successful recovery has been reported after surgery, most cases develop speech disabilities. A common solution used to deal with such communication disorders is esophagus vocalization. However, esophagus speech sounds are not a clear type of speech as they...
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