60 GHz Mikrowellentechnik fuer die Breitband-Mobilkommunikation mit optischer Mikrowellenerzeugung Schlussbericht

Abstract

We have worked on a project 'optical microwave generation for mobile communications' in the context of the BMBF Project line 'PHOTONIK II' together with the Heinrich Hertz Institut (HHI). The task of Bosch were in the area of microwave engineering. For the estimation of the results and for promotion issues we have built working demonstrator systems at 18 GHz and 60 GHz. We have estimated the characteristics of the mobile radiofrequency channel at 60 GHz and have analyzed suitable modulation methods. An optical path which is built with laser diodes, glass fiber and photodetector has been integrated in a radio relay system from Bosch. With this system we have realized a bidirectional data transmission at 155 MBit/s with an OQPSK modulation at 18 GHz. For the Demonstrator at 60 GHz we have created a radio basestation and radio mobile station with waveguide components. Based on a power budget for a cellular radio communication network we have developed a hemisspherical antenna. The measurements of the antenna match the simulations very well and show the suitability for a cellular network at 60 GHz. (orig.)SIGLEAvailable from TIB Hannover: DtF QN1(66,60) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman