Abstract: A planar monopole antenna consisting of a printed metal strip of rectangular spiral shape is studied. The spiral generates two resonance modes and radiates at two frequency bands. An example ...

Abstract: A single-layer planar waveguide array antenna with low sidelobe levels is proposed in this paper. The proposed array antenna integrates radiating elements and the hollow E-plane waveguide ...

Emergence of unidirectionally propagating waves on bacterial biofilms. (a-b) Optical imaging shows spiral, planar (a), and radially shrinking waves (b) propagating unidirectionally on biofilm surfaces ...

During the peer-review process the editor and reviewers write an eLife assessment that summarises the significance of the findings reported in the article (on a scale ranging from landmark to useful) ...

Former Manchester United midfielder Donny van de Beek suffered what looks to be a 'serious' injury in Girona's clash with Athletic Bilbao on Tuesday evening. When the Dutchman signed for the Red ...

A Brisbane doctor spent years mentoring young Indigenous leaders and medical professionals before she and her eight-year-old daughter were found dead in a suspected murder-suicide. But by the age of ...