Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Siew-Weng Leong"'
Autor:
Michael Ling Chuen Ong, Siew Weng Leong, Nasimuddin, Kush Agarwal, Muhammad Faeyz Karim, Arokiaswami Alphones, Bin Luo, Kuen Sim Chan, K. Chandrasekaran
Publikováno v:
Scopus-Elsevier
In this work the design, analysis and characterisation of a novel backward to forward scanning substrate integrated waveguide (SIW) leaky wave antenna with consistently high gain over the entire field of view is proposed. The leaky wave antenna (LWA)
Publikováno v:
GLOBECOM
This paper presents the development and key design features of a Ka-band block upconverter (BUC) with integrated novel high selectivity SIW filters and wideband RF predistortion linearizer for high speed LEO to GEO inter-satellite communication. The
Publikováno v:
TENCON 2017 - 2017 IEEE Region 10 Conference.
This paper presents a new architecture for RF predistortion linearizer that has the novel feature to provide independent control of phase/gain response for achieving optimal distortion compensation. There are many RF predistortion linearizer designs
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
Publikováno v:
2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR).
A phase-locked loop (PLL) array has been developed to perform electronic beam steering at W-band (76–77 GHz) for radar applications. It uses external current injection into the outputs of the charge pump (CP) in the frequency synthesizers to adjust
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
Publikováno v:
2014 13th International Conference on Optical Communications and Networks (ICOCN).
Publikováno v:
2012 IEEE/MTT-S International Microwave Symposium Digest.
An injection-controlled method for charge pumped phase-locked loop (CP-PLL) has been developed for beam scanning in a 76–77 GHz automotive radar. It exploits an additional and external current source with the CP-PLL to control the voltage controlle
Publikováno v:
2006 First European Conference on Antennas and Propagation.
The system performance of a beam steering array for a transmitting UWB system will be presented in the context of FCC?s emission mask for surveillance radar. The results include radiation patterns and pulse-width distortions and spectrum will be disc
Publikováno v:
2006 First European Conference on Antennas & Propagation; 2006, p1-5, 5p