Dual Band a-Si:H Solar-Slot Antenna for 2.4/5.2GHz WLAN Applications

A simple and compact design of solar-slot antenna for dual band 2.4/5.2GHz wireless local area networks (WLAN) applications is proposed. The design employs amorphous silicon (a-Si:H) solar cells in polyimide substrate with an embedded twin strip slot structure to generate dual resonant frequencies. A T-shaped microstripline feed is used to excite the twin slot in the a-Si:H solar cell. The measured impedance bandwidths for the proposed solar antenna are 25.9% (642 MHz) centered at 2.482 GHz and 8.2% (420 MHz) centered at 5.098 GHz. The measured gain at 2.4 and 5.2 GHz are 3.1 dBi and 2.1 dBi respectively

The economics of rural areas in the proximity of urban networks: evidence from Flanders

Flanders is a densely populated, strongly urbanised region in Northwest Europe, but with still recognisable peri-urban rural territories. These territories have a distinct economic profile that is far from being marginal, but which has a diminishing role for agriculturally related economic activities. From a regionally-based economic approach, the authors argue that these rural areas act as flanking areas for the nearby urban areas, with mutual benefits. Therefore a model representing local economic development in these flanking rural territories can only be relevant if it takes into account this urban-rural partnership, in respect to the territorial identity and cultural features of both these types of areas. Copyright (c) 2003 by the Royal Dutch Geographical Society KNAG.