1. Universiti Teknologi MARA,College of Engineering,Microwave Research Institute,40450 Shah Alam,Selangor,Malaysia
2. Universiti Teknologi MARA,College of Engineering,School of Electrical Engineering,40450 Shah Alam,Selangor,Malaysia
3. Universiti Tenaga Malaysia,College of Engineering,Institute of Power Engineering,43000 Kajang,Selangor,Malaysia
4. Uruk University,College of Technical Engineering,Department of Medical Devices Engineering Techniques,Baghdad,Iraq