In this paper, a novel slot-coupling feeding technique is used to realize a dual-polarized 2x1 microstrip stacked patch array for mobile wireless communication systems. The array is intended as a basic module for base station linear arrays, whose final size depending on beamwidth and gain requirements. Each array element is fed through two microstrip lines arranged on the basis of a sequential rotation technique. Each stacked square patch is excited through a square ring slot realized in the feeding network ground plane. Design procedure, simulation results and measurement data are presented for a 2x1 array working in the GSM 1800-1900 band (1710 – 1910 MHz), UMTS band (1920 - 2170 MHz), ISM band (2400 - 2484 MHz) and UMTS 3G expansion band (2500 - 2690 MHz) or, alternatively, WiMax™ band (2300 – 2700 MHz), with a resulting 45% percentage bandwidth (Reflection Coefficient < -10dB). Due to both the symmetry properties of the novel slot-coupling feeding configuration and the implementation of a sequential rotation technique, good results have been obtained in terms of port isolation and cross-polar radiation patterns.
A Wideband Slot-Coupled Stacked-Patch Array for Wireless Communications
CASO, ROBERTO;NEPA, PAOLO;MANARA, GIULIANO
2010-01-01
Abstract
In this paper, a novel slot-coupling feeding technique is used to realize a dual-polarized 2x1 microstrip stacked patch array for mobile wireless communication systems. The array is intended as a basic module for base station linear arrays, whose final size depending on beamwidth and gain requirements. Each array element is fed through two microstrip lines arranged on the basis of a sequential rotation technique. Each stacked square patch is excited through a square ring slot realized in the feeding network ground plane. Design procedure, simulation results and measurement data are presented for a 2x1 array working in the GSM 1800-1900 band (1710 – 1910 MHz), UMTS band (1920 - 2170 MHz), ISM band (2400 - 2484 MHz) and UMTS 3G expansion band (2500 - 2690 MHz) or, alternatively, WiMax™ band (2300 – 2700 MHz), with a resulting 45% percentage bandwidth (Reflection Coefficient < -10dB). Due to both the symmetry properties of the novel slot-coupling feeding configuration and the implementation of a sequential rotation technique, good results have been obtained in terms of port isolation and cross-polar radiation patterns.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
