Printed-probe E-plane coupler design and simulation using the TLM (transmission line modeling) method

Humberto Abdalla Jr.; Leonardo R.A.X. de Menezes

doi:10.1117/12.331158

13 November 1998 Printed-probe E-plane coupler design and simulation using the TLM (transmission line modeling) method

Humberto Abdalla Jr., Leonardo R.A.X. de Menezes

Proceedings Volume 3465, Millimeter and Submillimeter Waves IV; (1998) https://doi.org/10.1117/12.331158
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

Citation Download Citation

Humberto Abdalla Jr. and Leonardo R.A.X. de Menezes "Printed-probe E-plane coupler design and simulation using the TLM (transmission line modeling) method", Proc. SPIE 3465, Millimeter and Submillimeter Waves IV, (13 November 1998); https://doi.org/10.1117/12.331158

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