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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2008-04-28
Waveguide as a Near-Field Measuring Probe of the Two-Element Array Radiator
By
Paramesha,

    Dr. Paramesha

    Department of Electronics & Electrical Communication Engineering

    Indian Institute of Technology

    India

    Homepage

Ajay Chakraborty

    Professor Ajay Chakraborty

    Department of Electronics and Electrical Communication Engineering

    Indian Institute of Technology

    India

    Homepage

Progress In Electromagnetics Research B, Vol. 7, 245-255, 2008
doi:10.2528/PIERB08032401 | Google Scholar

Abstract
In the analysis, an open-ended rectangular waveguide in an infinite ground plane is used as a near-field probe and the two-element waveguide array in an infinite ground plane is used as a radiator. Moment method analysis is used to find the reflection coefficient of the array element and probe voltage. The reflection coefficient of the array element, which is also an open-end of a rectangular waveguide, is computed and compared with the reflection coefficients, when the probe is at different positions in the near-field. The computations have also been carried out to find the induced probe voltage, when the probe scan in transverse plane (planar scanning) at a distance z1 from the radiator. Good agreement is obtained between measured and MOM results.
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Citation
Paramesha, and Ajay Chakraborty, "Waveguide as a Near-Field Measuring Probe of the Two-Element Array Radiator," Progress In Electromagnetics Research B, Vol. 7, 245-255, 2008.
doi:10.2528/PIERB08032401
References

1. Harrington, R. F., Field Computation by Moment Method, Roger E. Krieger Publishing Company, 1968.

2. Paramesha, S. and A. Chakrabarty, "Moment method analysis of rectangular waveguide as near-field measuring probe," Microwave and Optical Technology Letters, Vol. 48, No. 9, September 2006.
doi:10.1002/mop.21798        Google Scholar

3. Harrington, R. F., Time-Harmonic Electromagnetic Fields, McGraw-Hill, 1961.

4. Subrata, G., "Electromagnetic field estimation in aperture and slot antennas with their equivalent network representation," Ph.D. Dissertation, Department of E&ECE, IIT, Kharagpur, India, 1996.        Google Scholar

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