PHYSICS DEPARTMENT
UNIVERSITI PUTRA MALAYSIA

Present Position

Professor, Department of Physics

Field of Specializiation

Microwave Physics and Techniques

Credentials

• B.Sc.(Hons) (Physics), National University of Malaysia

  M.Sc. ( Solid State Physics), University of London

  Ph.D. ( Electronic and Electrical Eng. ) University of Birmingham, England

Office

Room No. 326 - Physical Sciences Building, Fac. of Science and Env. Studies.

Telephone

(603)89466606 

Fax

(603) 89432508

email

kaida@fsas.upm.edu.my (office)

Teaching Interest

I have taught various courses during the past 20 years, including microwave techniques, solid state devices,electromagnetism, quantum mechanics , computational physics. and electromagnetic field and waves

Research Areas

• Applied Electromagnetic

  Radio Frequency and Microwave Theory and Techniques

  Industrial,Scientific and Agriculture Applications of Radio and Microwaves

Research Interests

Kaida bin Khalid researches electromagnetic fields and waves in industrial and agriculture applications, analyzing physical aspectsof the interactions of these fields and waves with moist substances and development of RF and Microwave moisture sensors

Dr. Khalid's current work includes the theoritical and experimental investigation of hevea rubber latex and oil palm mesocarp at -30 C to 50 C with moisture content and frequency ranging from 40% to 100% and 0.001 Hz to 20 GHz respectively.

Another area of research focuses on the development of new moisture sensors for various lossy liquids and oil palm mesocarp. The sensors are based on the waveguide and microstrip structures.

Research Achievements and Benefits

• Results on the dielectric properties of hevea rubber latex at various moisture contents ranging from 40% to 100% (wet basis), frquency from 0.2 GHz to 20 GHz and temperature from -30 C to 50 C were obtained. Transition in the form of dielectric loss from conductive loss possibally due to charged particles in latex to dipole orientation of water molecules at about 2.0 GHz was observed.

  A portable ,rapid, simple to operate, cheap and accurate instrument has been developed for determination of moisture content in various lossy liquids and dry rubber content in hevea latex.This prototype known as MRT moisture meter and latexometer is based on reflection method and be able to give the accuracy at the level less than 1%.This instrument has been patented in Malaysia( MY-106441-A) and received the first prize in General Tech. Invention in the 1990 Malaysian Invention and Design Competition.

  A microstrip sensor for oil palm fruits has been developed to gauge the ripeness and quality of the fruits.

  Results on the dielectric properties of oil palm mesocarp at various stages of maturity and over a frequency range of 0.2 to 20 GHz.

Selected Publications

• Khalid K.B. : Determination of Dry Rubber Content of Hevea Latex by Microwave Techniques, Pertanika 5(2), 1982, pp 192-195.

  Khalid K.B. and A.Wahab M.B.: Microwave Attenuationof Fresh Hevea Latex, J. Rubber Research Ins. Mal. V 31-3 1983, pp 145-150.

  Khalid K.B.: The Application of Microstrip Sensors for Determination of Moisture Content in Hevea Rubber Latex, J. Microwave Power and EM Energy 23(1), 1988 pp 45-52

  Khalid K.B., Maclean. T.S.M., Razaz, M. Webb P.W. : Analysis and Optimal Design of Microstrip Sensors, IEE Proceedings Pt. H 135 (3), 1988 pp 187-195.

  Khalid K.B. and Abbas Z. : A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits (Tenera: Elacis Guineensis), J. Microwave Power and EM Energy , 27(1),1992 pp 3-10.

  Khalid K.B. and Daud W.M. : Dielectric Properties of Natural Rubber Latex at Frequencies from 200 MHz to 2500 MHz, J. Nat. Rubber Res. 7(4) 1992 pp 281-289.

  Khalid K.B., Hassan, J.and Daud W.M. : Dielectric Properties of Hevea Rubber Latex at various Moisture Contents, J. Nat Rubber Res. 9(3) 1994 pp 172-189.

  Khalid K.B. and Abbas Z. : Development of Microstrip Sensor for Oil Palm Fruits , Microwave Aquametry, 1996 pp 239-248, New York: IEEE Press.

  Khalid K.B. : A Portable Microwave Moisture Meter for Lossy liquids, Proc. of the 1994 Asia- Pasific Microwave Conf, Makuhari Messe, Tokyo pp 477-481

  Khalid K.B.,Zakaria, Z., Abbas, Z. and Daud, W.M. " Dielectric Properties of Oil Palm Mesocarp at Various Moisture contents , Proc. of the 30th Microwave Power Simposium, Denver USA pp 96-98

  Khalid K.B., Hassan J. and Daud W.M. " The effect of Ionic Conductivity and Dipole Orientation on Dielecric loss of Hevea Rubber Latex " Proc. EM Wave Interaction with Water and Moist Substances Workshop, IEEE-MTTS International Microwave Symposium June 16-21 San Francisco 1996. pp 23-26.

Consultation and Extansion

• Development of MRT-Latexometer and Moisture meter for various liquids

  Offer services for measurement of Dielectric Properties of solid and liquid from 1mHz to 20 GHz.

Activities and Awards

• Member, Inst. of Electronic and Elec. Engineers IEEE, MTTS

  Member, Malaysian Invention & Design Soc.(MINDS)

  Member, Inst. of Physics Malaysia

  Life Member, Malaysian Solid State and Tech. Soc.

  Member, Malaysian Society of NDT

Dr. Khalid has won 1992 TWAS -National Young Scientist Award in Physics , three times Excellent Service Award(1991/94/95) at the Universiti Putra Malaysia, The Best Entry of the International Competation on DRC Determination (Organized by MRRDB), 1982 and First Prize in Malaysian Invention and Design Competation (General Technology Catergory) - 1990.

THANKS FOR VISITING

WASSALAM

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