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Proceedings Paper

Printed-probe E-plane coupler design and simulation using the TLM (transmission line modeling) method
Author(s): Humberto Abdalla Jr.; Leonardo R.A.X. de Menezes
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Paper Abstract

This work presents an implementation procedure for the E-plane printed-probe coupler. This coupler can be obtained with an array of printed capacitive elements, mounted on the E plane of a waveguide. The design of a multiprobe directional coupler starts by the performance analysis of a single probe, with variable depth and width. Using the tridimensional TLM (Transmission Line Matrix Method), a database of results with probes of fixed width and variable depth and fixed depth and variable width is generated. Using these results and a simple design procedure a multi-element array was designed, where the coupling coefficient of each element is proportional to the coefficients of the Chebyshev polynomial. Using these results, a simulation of the 5-element Chebyshev array was performed using the three-dimensional TLM. The simulation difficulties are discussed and the results are shown.

Paper Details

Date Published: 13 November 1998
PDF: 7 pages
Proc. SPIE 3465, Millimeter and Submillimeter Waves IV, (13 November 1998); doi: 10.1117/12.331158
Show Author Affiliations
Humberto Abdalla Jr., Univ. of Brasilia (Brazil)
Leonardo R.A.X. de Menezes, Univ. of Brasilia (Brazil)

Published in SPIE Proceedings Vol. 3465:
Millimeter and Submillimeter Waves IV
Mohammed N. Afsar, Editor(s)

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