Electromagnetic Coupling Between Transmission Lines Through Apertures

Abstract

The paper present a comrehensive survey on the methods of analysis and design of microwave aperture couplers. The formulation of coupling between similar lines using small as well as large apertures, and between dissimilar transmission lines using small apertures is discussed. The most useful formulae used for design calculation along with some quantitative results are also presented. The relative merits and demerits of various techniques are mentioned.

Indexing Terms:

• Microwave Couplers
• Waveguide
• Stripline
• Microstripline Aperture Couplers
• Directional Couplers

Additional information

Notes on contributors

B.N. Das

Prof. Das, BN (Dr): Received the MSc (Tech.) degree from the Institute of Radio Physics and Electronics, University of Calcutta, Calcutta, in 1956, and the PhD degree from the Indian Institute of Technology, Kharagpur, in 1967.

He joined the Department Electronics and Electrical Communication Engineering of the Indian Institute of Technology in 1958. At present, he holds the position of Professor in the same department.

He is a Fellow of the Institution of Engineers (India).

V.M. Pandharipande

Pandharipande, V M (Dr): (b. 1949 Mar. 28). Obtained BE (Elec.) from Nagpur University in 1970 and MTech in Microwaves and Radar Engg. from IIT, Kharagpur in 1972. During 1972–1974 he was in Microwave Group of TIFR Bombay working on passive components and broad-band direction finding systems. He joined Radar and Communication Centre of IIT, Kharagpur in 1974 where he is currently working as an Assistant Professor. Obtained PhD degree in 1979 for the work on large aperture coupling of wave guide couplers and junctions using equivalent circuit approach. Since last eight years he has been actively associated with the sponsored research projects of the centre in the field of Phased Array Antennae for airborne applications, Slot arrays for side looking radar, Milimetre Wave antennae and transmission systems, Microstrip array antennae and TEM cell for EMI/EMC applications. Dr. Pandharipande is a member of IETE.