Browsing by Author "Huang, Peng-Da"

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A W-band Quadrature Hybrid Coupled Substrate Integrated Waveguide Diplexer
(2015-01-01)
Cheng, Yu-Liang
;
Chen, Hung-Wei
;
Huang, Peng-Da
;
Chang, Chi-Yang
;
電機工程學系
A W-band quadrature hybrid coupled substrate integrated waveguide (SIW) diplexer is proposed in this paper. Instead of conventional 0.127 mm substrate for W-band circuitry, a 0.254 mm substrate is chosen for Q-value improvement. A WR-10 waveguide to 0.254 mm SIW transition is developed for measurement purpose. The diplexer comprises four Riblet short slot quadrature hybrids and two pairs of 3-pole SIW channel filters. The two passbands of the diplexer are 84 GHz 6% BW and 93 GHz 6% BW respectively. The measured results matched well with simulated ones.
CMOS Impedance Transforming Balun Filter with Improvement of Magnetic Coupling to Nearby Spiral Inductors
(2011-01-01)
Huang, Peng-Da
;
Chang, Wei-Shin
;
Chang, Chi-Yang
;
Wan, Shih-Ming
;
Chen, Cheng-Chung
This paper presents a novel balun filter in TSMC 0.18 mu m CMOS technology which can suppress the magnetic coupling with nearby on-chip spiral inductors. The proposed balun filter keeps major requirements of a traditional coupled spiral inductor balun used in the output stage of a PA (power amplifier) such as center tap for DC bias, controllable impedance transformation ratio, good out-of-phase performance, etc. This new structure can achieve a maximum of 18 dB suppression of magnetic coupling to the nearby spiral inductor.