Zobrazeno 1 - 10
of 52
pro vyhledávání: '"and Michael Yan Wah Chia"'
Publikováno v:
2022 16th European Conference on Antennas and Propagation (EuCAP).
Publikováno v:
International Journal of Antennas and Propagation, Vol 2008 (2008)
Parametric study of the impedance and radiation characteristics of a dual elliptically tapered antipodal slot antenna (DETASA) is undertaken in this paper. Usually, the performance of the DETASA is sensitive to the parameters, the effects of major ge
Externí odkaz:
https://doaj.org/article/f629e6fadbe74f3bbabbba8613a0b2d8
Autor:
Michael Yan Wah Chia, Bo Shi
Publikováno v:
Circuits, Systems, and Signal Processing. 30:741-753
This paper presents the design of an ESD-protected noise-canceling CMOS wideband receiver front-end for cognitive and ultra-wideband (UWB) radio-based wireless communications. Designed in a 0.13-μm CMOS technology, the RF front-end integrates a broa
Publikováno v:
IEEE Transactions on Antennas and Propagation. 59:1428-1432
An experimental verification of energy link loss between the source at the transmitting antenna and the load at the receiver for ultrawideband systems is presented. The proposed closed-form approximations for the link loss analysis are verified exper
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 53:11-17
This paper presents a method for predicting the angle-of-arrival (AOA) using ultrawideband time-difference-of-arrival technique, when the received signal is corrupted by antenna noise. To predict the accuracy of the AOA, the probability density funct
Publikováno v:
IEEE Transactions on Antennas and Propagation. 58:3524-3531
The transmitted signal by a circularly polarized ultrawideband (CP-UWB) array is a short pulse of circularly rotating E-field vector in time domain. A mathematical model is derived for a transmitted pulse radiated by a CP-UWB array antenna. To valida
Publikováno v:
Progress In Electromagnetics Research C. 17:39-53
In this paper, a time domain analysis for ultra-wideband short pulse radiation from wire monopole antennas and their arrays is presented. The pulse travels along the monopole antenna and re∞ects from the open end; during the pulse re∞ection, the
Autor:
Chiew Kok Ang, Wing-Fai Loke, Piew Yoong Chee, Jee Khoi Yin, Kim Loon Chee, A.A.L. Peh, Michael Yan-Wah Chia, Siew-Weng Leong
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 57:1310-1319
The performance of an RF identification (RFID) system can be limited by the static radiation pattern of a reader or interrogator. In this paper, a novel and low-power CMOS chip has been designed to enable beam steering for the RFID interrogator. This
Autor:
Michael Yan-Wah Chia, Jee-Khoi Yin, Piew-Yong Chee, Siew-Weng Leong, Chan-Kuen Sim, Teck-Hwee Lim
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 54:2431-2438
A novel electronic beam-steering subsystem providing true time-delay technique has been developed for an ultra-wideband (UWB) phased array. The relative time delay for phase interpolation is variable from 100 to 500 ps. Scanned angles from 9deg to 59
Autor:
Xu Liang, Michael Yan Wah Chia
Publikováno v:
Scopus-Elsevier
Experimental results show a multiband behavior for the Sierpinski gasket fractal antenna and the tree-like fractal antenna. Such behavior has been explained by the fractal structures of the antennas. We show that the matched frequencies possess a log