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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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A 94 GHz 10.8 mW Low-Noise Amplifier With Inductive Gain Boosting in 40 nm Digital CMOS Technology
(2019-01-01)
Yeh, Po-Chen
;
Kuo, Chien-Nan
;
交大名義發表
;
National Chiao Tung University
A W-band low-power, low-noise amplifier is designed and fabricated in 40 nm digital CMOS technology. The method of inductive gain boosting is utilized without extra power consumption. The circuit only consumes 10.8 mW dc power with a supply voltage of 1 V. The measured peak power gain achieves 14.5 dB at 93 GHz, while the minimum noise figure is 6.4 dB at 89 GHz. The circuit occupies a core area of only 0.07 mm(2).
Non-contact Pulse-based Radar with an Excited RF Pulse Generator for Vital-sign Application
(2019-01-01)
Chen, Wei-Hsien
;
Chang, Chia-Hung
;
Kuo, Chien-Nan
;
Hsu, Chia-Chin
;
電子工程學系及電子研究所
This paper presents a pulse-based investigation to generate a serial of sensing pulses for probing the reciprocal movements of heartbeat and chest, respectively. An excited self-contained RF pulse generator with digital assisted controller is used for pulse shaping and performing nanosecond sensing pulses. In addition, the generator is implemented by a common source field-controlled transistor and a contour circuit by micro-strip line. Hence, in this paper, probing pulses and receives the echoes from the investigated subject back and forth by the whole sensing radar based on the monostatic antenna system. The demodulator is utilized to perform the multiplication of the reference probing waves and the return echoes delayed by the time interval between the emitted signal and reflected waves back to the radar module. The following analog baseband processing circuits with 3-stage topology for further amplifying and filtering the received physiological information help to increase the overall signal-to-noise ratio (SNR). The measured results demonstrate that the radiated RF pulses and vital signs are expected.
A 19.1% PAE, 22.4-dBm 53-GHz Parallel Power Combining Power Amplifier with Stacked-FET Techniques in 90-nm CMOS
(2019-01-01)
Sun, Wei-Che
;
Kuo, Chien-Nan
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
A two-stage fully integrated 53-GHz stacked-FET power amplifier (PA) is implemented in 90-nm bulk CMOS. The output stage is optimized to achieve high output power while maintaining high power added efficiency (PAE). The complete PA achieves a measured saturated output power of 22.4 dBm and the 19.1% PAE at 2.4 V supply. It has -3 dB bandwidth of 8.8 GHz.
A charge accumulation-free voltage-controlled functional electrical stimulator with bi-phasic sinusoidal stimulation
(2019-11-01)
Chen, Wei-Hsien
;
Chang, Chia-Hung
;
Shih, Horng-Yuan
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Chiu, Tzai-Wen
;
Kuo, Chien-Nan
This paper presents a charge accumulation-free voltage-controlled (VC) bi-phasic sinusoidal functional electrical stimulator (FES) for bioelectronic application. Traditionally, constant current (CC) pulse-shaped FESs with active or passive charge balancers are used to compensate for accumulated charges arise from process, voltage and temperature (PVT) variation as a result of long-term stimulation. Unlike the CC pulse-shaped FES, the VC sinusoidal-shaped FES is adopted here to avoid charge accumulation over time. The charge balancer is not required, substantially reducing system complexity and the chip area of the FES. To demonstrate the feasibility of concept, in this paper, four channels of VC bi-phasic sinusoidal-shaped FESs are integrated with the bio-potential recording circuit to compare with four channels of CC bi-phasic pulse-shaped FESs that are integrated with the same neural recording system for comparison. Measurements indicate an absence of charge accumulation as a result of the VC FESs. In addition, here we adopt the sinusoidal stimulation to reduce transient effects on tissue in comparison to a pulse-shaped method. The bio-potential activities of a cockroach leg that is stimulated for 50 s by the proposed bi-phasic sinusoidal stimulation are recorded. The measured bio-potential activities of a cockroach leg show that no stimulation-evoked leg movement occurs under stimulation by the sinusoidal waveform.
A W-Band 6.8 mW Low-Noise Amplifier in 90 nm CMOS Technology Using Noise Measure
(2019-01-01)
Yeh, Po-Chen
;
Kuo, Chien-Nan
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
A W-band low-noise amplifier consisting of seven common-source transistor stages is designed using noise measure as the figure of merit for circuit optimization. Fabricated in 90 nm CMOS technology, the die size is 0.38 mm(2), while the core active area only 0.1 mm(2). The circuit gives peak power gain of 21.5 dB at 90 GHz and noise figure of 8.3 dB, with dc power consumption of only 6.8 mW.
A 39 GHz Reflection-Type Phase Shifter for Reflectarray Antenna Application
(2019-01-01)
Lin, Yu-Ting
;
Hsiao, Chiao-Yun
;
Chi, Pei-Ling
;
Kuo, Chien-Nan
;
交大名義發表
In this paper, a differential one-port millimeter-wave reflection-type phase shifter for reflectarray antenna applications is implemented in 90 urn CMOS technology. Assisted by a switched terminator, the measured phase shift achieves more than 360 degrees using voltage control from 0 to 1 V. Signal loss is compensated in this design to alleviate the loss issue of passive phase shifters. The circuit consumes de power of 14.4 mW.
Phased Array Technique for mm-wave Wireless Communication
(2018-01-01)
Kuo, Chien-Nan
;
交大名義發表
;
National Chiao Tung University
Phased Array Technique for mm-wave Wireless Communication
(2018-01-01)
Kuo, Chien-Nan
;
交大名義發表
;
National Chiao Tung University
Enhancement of CMOS THz Imaging Sensing By Packaging Technology
(2017-01-01)
Kuo, Chien-Nan
;
Chen, Wei-Cheng
;
Chiu, Te-Yen
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Li, Chun-Hsing
;
電子工程學系及電子研究所
Terahertz imaging sensing provides numerous attractive applications in different areas, for example, biology and medicine. CMOS technology benefits an imaging system in low cost and a small form factor. The technology advance is technically viable for circuit design in such high frequencies. Lossy silicon substrate, however, still degrades system performance. We will discuss the techniques of performance enhancement.
FOCUSED SOURCE FORMATION USING A MICRO DISC-LIKE PATCH ANTENNA ARRAY FOR THz CMOS TRANSCEIVER APPLICATIONS
(2017-01-01)
Lu, Yi-Xuan
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Hsu, Meng-Tse
;
Cheng, Y. T.
;
Li, Chun-Hsing
;
Kuo, Chien-Nan
The paper presents a scheme to generate a focused THz source using a disc-like antenna array for THz CMOS-based transceiver application. The disk-like antenna array is fabricated by pressing a steel ball onto a flexible flat antenna array placed on a hollow silicon mold to form a hemispherical shell disk. Simulation results show that the receiving power from the center of the disc-like patch antenna array can improve the ratio of the receiving power to the incident one from 0.064 to 0.101 in comparison with that from the flat antenna array. About 1-2 dB receiving power difference measured experimentally has also validated the source focusing capability via the scheme.

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