Abstract: The coupled transcendental equations describing cutoff frequencies of TE and TM modes are deduced for a rectangular waveguide with arbitrary wall impedance. In the case of TE modes, their ...

Correspondence to Dr Jan Minners, Department of Cardiology, University Hospital Basel, Petersgraben 4, CH-4031 Basel, Switzerland; jminners{at}uhbs.ch Objective To investigate the influence of ...

Abstract: Diffuse reflective LED lighting system is widely used in many areas, while rectangular illumination is also widely used in various lighting fields because of its regular lighting shapes, but ...