2.4GHz Pattern Reconfigurable Corner Reflector Antennas Using Frequency Selective Conductor Loops and Strips
ABSTRACT. Long-range point-to-point wireless links typically use high gain, directional antennas in order to maximize link performance. However, the narrow beamwidth of the antennas makes such systems vulnerable to antenna misalignment, especially at longer distances. In this paper, we present two reconfigurable corner reflector antenna designs capable of electronically altering the beam direction in small angular increments. The added pattern reconfigurability is intended to mitigate the effects of antenna misalignment. The designs utilize frequency selective conductor loops and strips as reflective elements instead of solid sheets for the reflector. The designs were demonstrated to be capable of beam shifts lower than 5 degrees with a gain of at least 9.3 dBi. The antennas were designed for 2.4 GHz long-range WiFi links
Global Achievement Awardee in Electrical Engineering 2017
Congratulations to MacArthur V. delos Reyes (BS EE 1966) for being the recipient of the Global Achievement Award in Electrical Engineering. He was awarded in the UP Alumni Engineers Homecoming 2017, held on 18 November 2017, in Ang Bahay ng Alumni, UP Diliman.
ABOUT THE AWARDEE (lifted from Ingenium 2017). Engr. Delos Reyes entered UP as an NSDB scholar (now DOST) scholar; graduated BS EE; topped the board exam; and taught for four years in the College of Engineering. He trained in the various aspects of electric motor manufacturing at Westinghouse USA when he joined the Philippine Electric Company. Shortly after, he spent four years in the US, teaching basic electrical and electronic circuits at Ohio Community College and working for Hirsch Electric Company where he designed electric systems for commercial and industrial applications.
Returning to the Philippines in 1979, Engr. Delos Reyes worked for various engineering firms, including DCCD Engineering Corporation. In 1982, Engr. Delos Reyes returned to his former company in Ohio, Hirsch Electric Company, until his retirement in 2006. At Hirsch, he started as project engineer, went on to become project manager, then manager of engineering, and finally vice president of engineering.
Engr. Delos Reyes has gone a long way from an NSDB-funded EE student at UP in the 1960s to practicing his electrical engineering profession and contributing his best to the general development of commerce and industry in the Philippines and adopted country, USA. In acknowledgement of the role of his alma mater to his becoming an accomplished engineer, Engr. Delos Reyes, together with his wife Dr. Josefina delos Reyes, sponsored in 2010 three professorial chairs in the College, funded by a five-million endowment. The couple likewise supported five educators in the UP College of Education's annual Outstanding Teachers Awards, in honor of their high school teachers at Torres High School who were all UP Education graduates, and they have also renovated some rooms in that College. At the Institute of Mathematics, the alma mater of his wife, they sponsored its annual Outstanding Teacher Award, Institute Director Award, and a professorial chair.
IEEE CommSoc Distinguished Lecture Tour, 01-02 Dec 2017
December 01, 2017 (Friday), 2PM
UP - MERALCO Innovation Hall, UP EEEI
Title: DoS in Vanets an issue or a fatality
ABSTRACT. Wireless and mobile networks have many advantages as easy deployment, user mobility and provides network access to users regardless to their locations. The most critical problems that arise in these networks are on the resource allocations as the bandwidth is limited, the propagation (multi-path, fading, distortion) and security since communications are transmitted over radio waves. In parallel new architectures/technologies have been emerged as Vehicular Networks and Internet of Things.
In this lecture, I will present issues about availability problem in those networks and architecture, I will focus on Vehicular Networks, and I will present some works we have done and other works to improve security in those systems.
December 02, 2017 (Saturday), 9AM
Gaugain Function Room, Novotel Manila, Araneta Center, Cubao, Quezon City
Title: Stochastic Tools used to Improve and/or to evaluate MAC layer in Wireless networks
ABSTRACT. Wireless and mobile networks have many advantages as easy deployment, user mobility and provides network access to users regardless to their locations. The most critical issues that arise in those networks are on the resource allocations as the bandwidth is limited, the propagation (multi-path, fading, distortion) and security since communications are transmitted over radio waves. In this seminar I will present several works done to model/Improve Quality of Service in Wireless networks. Three different methods will be presented in this lecture. In the first part a new model based on Markov chains is presented to model the different service classes defined in IEEE 802.16. The second part I will present a new AC that we have defined for IEEE 802.16 and we have evaluated using Stochastic Automata Networks. Finally I will present a stochastic model that for admission control in wireless networks using IEEE 802.11 standard
Lingkod: A Benefit Concert for UPEEEAAI scholars
SAVE THE DATE: 15th EEE Alumni Homecoming
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