Etude et developpement de la technologie hybride circuit planaire/guide NRD dans le contexte d'un emetteur/recepteur onde millimetrique (French text)

This study deals with the hybrid planar and non-radiative dielectric (NRD) guide technology applied to the development of millimeter wave radio such as an LMCS radio. The planar circuit can be microstrip line or coplanar waveguide.; At first, a new fabrication technique call engraved NRD (ENRD) guide is studied to obtain a good physical support of the planar microstrip line circuit and facilitate the fabrication of complex NRD guide circuit. This technique is simple, but in the realization of an NRD guide filter with microstrip line to NRD guide transitions at the input and output, the microstrip substrate couldn't be placed perfectly flat over the filter, thus affecting its performances. The problems associated with the HLMGN technique are also studied, mainly the excitation of TE0n parasitic modes. This problem leads to the development of symmetric microstrip line to NRD guide transitions and of a mode suppressor using an uniplanar and compact electromagnetic bandgap circuit.; A second fabrication technique named SINRD guide resolves all the mechanical support problems of the planar circuit substrate and offers the possibility of realizing symmetrical circuit. The developed design procedure of SINRD guide circuit is also validated by the realization of a 3dB coupler, a 94GHz filter with a bandwidth of 1GHz, and a transition between an SINRD guide and a coplanar waveguide (CPW) made on the same dielectric substrate, also at 94GHz (hybrid CPW and NRD guide technology). The use of metallized holes with the SINRD guide is also studied to increase the technological potential of the SINRD guide.; Then a simple topology for the radio of the LMCS consumer terminal is established based on Canadian and European specifications. The necessary performances of the radio components to achieve the LMCS specifications are defined. The use of SINRD guide filter for the transmitter and receiver is discussed. And an investigation over the appropriate type of antenna for the HLMGN LMCS radio is done. The most interesting option is a planar antenna made of an N by N array of radiating substrate integrated image guide resonators, each resonators being excited by a N by N in phase SINRD guide power divider (corporate feed).; Finally an original topology for a balanced power SINRD guide amplifier is proposed that makes the most of the SINRD guide potential. This topology allows to place four amplification units in parallel, which theoretically increase by 6dB the compression point P1 dB of one amplification unit. Furthermore the symmetrical SINRD guide magic Tee junctions placed at the input and output of the circuit absorb most of the reflected signals from the amplification units, resulting in better S11 and S22 parameters results. (Abstract shortened by UMI.)...