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.
Single-Feed Circularly Polarized Aperture-Coupled Square Ring Slot Microstrip Antenna
BUFFI, ALICE;CASO, ROBERTO;NEPA, PAOLO;MANARA, GIULIANO
2010-01-01
Abstract
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.File in questo prodotto:
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