1. Czech Technical University in Prague,FEE, Department of Radioelectronic,Prague,Czech Republic
2. Czech Technical University in Prague,FEE, Department of Electromagnetic Field,Prague,Czech Republic
3. Czech Technical University in Prague,FEE, Department of Measurement,Prague,Czech Republic
4. École Polytechnique Fédérale de Lausanne,Lausanne,Switzerland
5. Technical University of Ostrava,Department of Telecommunications,Ostrava,Czech Republic