A surprising number of apparently healthy people harbor unsuspected pituitary tumors, which are being discovered incidentally on computed tomography (CT) or magnetic resonance imaging (MRI) performed for other reasons. The majority can be safely observed; for others, medical therapy or surgical resection is necessary. In this article we outline our approach.

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In this paper we present a novel approach to create a dual frequency band of a new sectoral antenna design combining Metallic EBG materials as a superstrate with a Frequency Selective Surfaces (FSS) as a substrate. The geometry and working of the antenna are detailed and a design method is proposed.

This article presents a new method to realize sectoral antennas for base station by incorporating metallic partially reflecting surface (M‐PRS).The main idea consists in inserting simple radiating elements, as patches, inside a Fabry‐Perot cavity resonator. This consists of a ground plane, where the feeding system rests covered by a rectangular M‐PRS. A patch array is used as a feeding structure to enhance directivity and radiation bandwidth. A rectangular M‐PRS antenna for the uplink UMTS frequency band [1.92–1.98 GHz] working in vertical polarization is designed, and its performances are disclosed. Finally, a prototype is realized and the experimental measurements are compared to the simulated ones. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:990–994, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25044