STUDY OF REFLECTION AND TRANSMISSION COEFFICIENT OF A MICROSTRIPLINE
Surya Deo Choudhary
Department of ECE, B. R. A. Bihar University, Muzaffarpur, Bihar, India , IN
Kumar Balwant Singh
Department of ECE, B. R. A. Bihar University, Muzaffarpur, Bihar, India , IN
R. K. Singh
Department of ECE, B. R. A. Bihar University, Muzaffarpur, Bihar, India , IN
Keywords: Microstripline, Reflection, Transmission, Coupling, Coefficients Stripwidth, Permittivity
Abstract
In this paper the dependence of reflection and transmission coefficients of a microstripline on various parameters such as strip width, spacing between two metal strips and permittivity is studied. As an ideal microstrip directional coupler makes use of the basic features that power flowing in one direction in the main microstripline induces a power flow in the second line in the forward direction or in the reverse direction. The coupling characteristics and reflected waves depend on the microstrip width, spacing between two strips and operating frequency. In the coupler amount of power flowing in the system gets reflected back. So it is necessary to calculate reflection coefficient VSWR and its variation.
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