Vol. 7
Latest Volume
All Volumes
PIERM 130 [2024] PIERM 129 [2024] PIERM 128 [2024] PIERM 127 [2024] PIERM 126 [2024] PIERM 125 [2024] PIERM 124 [2024] PIERM 123 [2024] PIERM 122 [2023] PIERM 121 [2023] PIERM 120 [2023] PIERM 119 [2023] PIERM 118 [2023] PIERM 117 [2023] PIERM 116 [2023] PIERM 115 [2023] PIERM 114 [2022] PIERM 113 [2022] PIERM 112 [2022] PIERM 111 [2022] PIERM 110 [2022] PIERM 109 [2022] PIERM 108 [2022] PIERM 107 [2022] PIERM 106 [2021] PIERM 105 [2021] PIERM 104 [2021] PIERM 103 [2021] PIERM 102 [2021] PIERM 101 [2021] PIERM 100 [2021] PIERM 99 [2021] PIERM 98 [2020] PIERM 97 [2020] PIERM 96 [2020] PIERM 95 [2020] PIERM 94 [2020] PIERM 93 [2020] PIERM 92 [2020] PIERM 91 [2020] PIERM 90 [2020] PIERM 89 [2020] PIERM 88 [2020] PIERM 87 [2019] PIERM 86 [2019] PIERM 85 [2019] PIERM 84 [2019] PIERM 83 [2019] PIERM 82 [2019] PIERM 81 [2019] PIERM 80 [2019] PIERM 79 [2019] PIERM 78 [2019] PIERM 77 [2019] PIERM 76 [2018] PIERM 75 [2018] PIERM 74 [2018] PIERM 73 [2018] PIERM 72 [2018] PIERM 71 [2018] PIERM 70 [2018] PIERM 69 [2018] PIERM 68 [2018] PIERM 67 [2018] PIERM 66 [2018] PIERM 65 [2018] PIERM 64 [2018] PIERM 63 [2018] PIERM 62 [2017] PIERM 61 [2017] PIERM 60 [2017] PIERM 59 [2017] PIERM 58 [2017] PIERM 57 [2017] PIERM 56 [2017] PIERM 55 [2017] PIERM 54 [2017] PIERM 53 [2017] PIERM 52 [2016] PIERM 51 [2016] PIERM 50 [2016] PIERM 49 [2016] PIERM 48 [2016] PIERM 47 [2016] PIERM 46 [2016] PIERM 45 [2016] PIERM 44 [2015] PIERM 43 [2015] PIERM 42 [2015] PIERM 41 [2015] PIERM 40 [2014] PIERM 39 [2014] PIERM 38 [2014] PIERM 37 [2014] PIERM 36 [2014] PIERM 35 [2014] PIERM 34 [2014] PIERM 33 [2013] PIERM 32 [2013] PIERM 31 [2013] PIERM 30 [2013] PIERM 29 [2013] PIERM 28 [2013] PIERM 27 [2012] PIERM 26 [2012] PIERM 25 [2012] PIERM 24 [2012] PIERM 23 [2012] PIERM 22 [2012] PIERM 21 [2011] PIERM 20 [2011] PIERM 19 [2011] PIERM 18 [2011] PIERM 17 [2011] PIERM 16 [2011] PIERM 14 [2010] PIERM 13 [2010] PIERM 12 [2010] PIERM 11 [2010] PIERM 10 [2009] PIERM 9 [2009] PIERM 8 [2009] PIERM 7 [2009] PIERM 6 [2009] PIERM 5 [2008] PIERM 4 [2008] PIERM 3 [2008] PIERM 2 [2008] PIERM 1 [2008]
2009-04-28
Near Field of Slot Radiators
By
Progress In Electromagnetics Research M, Vol. 7, 41-55, 2009
Abstract
In this paper, the cosinusoidal slot aperture distribution is replaced with a two term approximation. Using this two term approximation, the slot fields are evaluated in closed form and explicit expressions are given in terms of sine and cosine integrals. The two term approximation and the near fields derived therefrom agree closely with the cosinusoidal distribution for slot lengths upto 0.65λ, with an error of less than 3.3% with respect to the numerical results upto 0.05λ from the slot in the near field. The formulation given here is of practical use in estimating mutual coupling in an array or in estimating radiated emissions for Electromagnetic Compatibility (EMC) analysis.
Citation
Sandeepak S. Kakatkar, and Kamla Prasan Ray, "Near Field of Slot Radiators," Progress In Electromagnetics Research M, Vol. 7, 41-55, 2009.
doi:10.2528/PIERM09041201
References

1. Schelkunoff, S. A., Electromagnetic Waves, 369-371, D. Van Nostrand Co., Inc., 1957.

2. Richmond, J. and N. Geary, "Mutual impedance between Mutual impedance between," IEEE Transactions on Antennas and Propagation, Vol. 18, 414-416, May 1970.
doi:10.1109/TAP.1970.1139705

3. Balanis, C. A., "Antenna Theory-Analysis and Design," Ch. 3, Ch. 11, John Wiley & Sons, Inc., 1982.

4. Elliott, R. S., "An improved design procedure for small arrays of shunt slots," IEEE Transactions on Antennas and Propagation, Vol. 31, 48-53, 1983.
doi:10.1109/TAP.1983.1143002

5. Mondal, M. and A. Chakrabarty, "Resonant length calculation and radiation pattern synthesis of logitudinal slot antenna in rectangular waveguide," Progress In Electromagnetics Research Letters, Vol. 3, 187-195, 2008.
doi:10.2528/PIERL08042204

6. Josefsson, L., "Analysis of longitudinal slots in rectangular waveguides," IEEE Transactions on Antennas and Propagation, Vol. 35, 1351-1357, 1987.
doi:10.1109/TAP.1987.1144042

7. Sangster, A. J. and H. Wang, "Moment method analysis of a horizontally polarised omnidirectional slot array antenna," IEE Proc. --- Microw. Antennas Propagt., Vol. 142, No. 1, 1-6, Feb. 1995.
doi:10.1049/ip-map:19951641

8. Stern, G. J. and R. S. Elliot, "Resonant length of longitudinal slots and validity of circuit representation: Theory and experiment," IEEE Transactions on Antennas and Propagation, Vol. 33, 1264-1271, Nov. 1985.
doi:10.1109/TAP.1985.1143509

9. Rengarajan, S. R., "Efficient and accurate evaluation of external mutual coupling between compound broadwall slots," IEEE Transactions on Antennas and Propagation, Vol. 40, No. 6, 734-737, Jun. 1992.
doi:10.1109/8.144611

10. Tai, C. T., "A new interpretation of the integral equation formulation of cylindrical antennas," IRE Transactions on Antennas and Propagation, 125-127, 1955.
doi:10.1109/TAP.1955.1144311

11. Chaney, J. G., "A simple solution to the problem of the cylindrical antenna," IRE Transactions on Antennas and Propagation, 217-221, 1957.
doi:10.1109/TAP.1957.1144491

12. Abramowitz, M. and I. A. Stegun, Handbook of Mathematical Functions, 1972.

13. Koksal, A. and J. F. Kauffman, "Mutual impedance of parallel and perpendicular coplanar surface monopoles," IEEE Trans. Antennas and Propagt., Vol. 39, No. 8, 1251-1256, Aug. 1991.
doi:10.1109/8.97367

14. Department of Defense, United States of America, Requirements for the control of electromagnetic interference characteristics of subsystems and equipment, MIL STD 461F, Department of Defense Interface Standard, Dec. 10, 2007.