SVIBOR - Project code: 2-05-256

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 2-05-256


MOBILE RADIOCOMMUNICATIONS-EFFICIENCY AND ANTENNA SYSTEMS


Main researcher: BARTOLIĆ, JURAJ (2316)



Assistants
Type of research: applied
Duration from: 05/01/91. to 05/01/95.

Papers on project (total): 88
Papers on project quoted in Current Contents: 3
Institution name: Fakultet elektrotehnike i računarstva, Zagreb (36)
Department/Institute: Department of Radiocommunications and Microwave Engineering
Address: Unska 3
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 612-96-63
Fax: 385 (0)1 611-13-96
E-mail: jbartol@zea.cc.fer.hr

Summary: The mobile communication efficiency in frequency, space, and time is the main field of research. The coverage zones are concerned taking in the account co-channel interferences and intermodulation. The existing propagation models will be verified by measurement and modified to suit the needs of application in croatian town areas. Also the research concerns the microwave active antenna systems for mobile radiocommunications. The main goal is to build up an experimental model of an active antenna array by integrating passive planar radiators and active devices.

Keywords: Radiocommunications, Satellite communications, Mobile communications, Microwave technology, Microwave integrated circuits, Antenna, Microstrip antenna, Active antenna, Antenna array

Research goals: The goals of this project are coordination and advancement of the research in the field of mobile communication efficiency in frequency, space, and time, and the research in the field of microwave active antenna systems. It is of great interest to stimulate fundamental and applied research in new fields and to enhance the exchange of information which are based on new experiences and results. A contribution is expected in the defining of the coverage zones taking in the account co-channel interferences and intermodulation. By verifying the existing propagation models, by measuring, and by modifying the models for special applications (especially in the city of Zagreb) it will be enabled to achieve new theoretical knowledge in the field of terrestrial and satellite mobile communications. The research on active antenna systems is mostly based on the theoretical knowledge and experiences which are due to the cooperation on the EC COST 223 project. It is also expected a contribution in defining the national research program in the most propulsive fields of radiocommunications i.e. mobile communications and satellite broadcasting. In the later phase it is expected a contribution in measurement standardization in the field of active antenna systems. It is planned a development of CAD software for antenna elements and arrays, and active devices. This will, with the forthcoming integration of computer networks, enable faster gathering of theoretical knowledge and much better possibilities for verification of the experimental results in comparation with the non-coordinated research efforts.


COOPERATION - INSTITUTIONS


  1. Name of institution: Active Array Antennas
    Type of institution: University/Faculty
    Type of cooperation: Joint publishing of scientific papers
    City: Gothenburg, S

  2. Name of institution: Soft and Hard Surfaces
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: Gothenburg, S

  3. Name of institution: Microwave Active Antennas
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: Rim, Italija

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Last update: 10/10/95
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