A novel single-feed circularly polarised aperture-coupled square patch is presented, where a square ring slot has been adopted to implement the coupling mechanism. By introducing some simple modifications of the square ring and patch geometries (namely a couple of meanders and slots), a 3 dB axial ratio fractional bandwidth of up to 9% is achieved. Explicit reference is made to the design of a WiMax antenna operating in the 3.3–3.8 GHz frequency band. The antenna has been fabricated and characterised.
|Autori:||A. BUFFI; R. CASO; M.R. PINO; NEPA P; G. MANARA|
|Titolo:||Single-Feed Circularly Polarized Aperture-Coupled Square Ring Slot Microstrip Antenna|
|Anno del prodotto:||2010|
|Digital Object Identifier (DOI):||10.1049/el.2010.3545|
|Appare nelle tipologie:||1.1 Articolo in rivista|