Abstract: Embodiments herein relate to the field of medical monitoring, and, more specifically, to a fiberoptic probe for monitoring tissue oxygenation and a method for using such a probe. A non-invasive method of measuring tissue oxygenation includes, in some embodiments, illuminating a tissue surface with a first fiberoptic fiber, receiving light from the tissue surface with a second fiberoptic fiber, measuring the absorption spectra of oxy- and deoxy-hemoglobin in the light, and calculating a tissue oxygenation value based on the absorption spectra.

Abstract: A collinear antenna segment is provided with a plurality of radiating elements and inter-element phasing sections arranged alternately on a singlesided elongated substrate. The segment has an operatively curved in-use configuration about a longitudinal axis running substantially along the length of the segment. In use, the inter-element phasing sections allow the radiating elements to radiate electromagnetic radiation substantially in phase over an intended range of frequencies. The segment may be arranged on a flexible substrate which can be operatively curved for insertion into a radome. Alternatively, the segment may be directly arranged on the curved inner surface of a radome.

Abstract: A collinear antenna segment is provided with a plurality of radiating elements and inter-element phasing sections arranged alternately on a singlesided elongated substrate. The segment has an operatively curved in-use configuration about a longitudinal axis running substantially along the length of the segment. In use, the inter-element phasing sections allow the radiating elements to radiate electromagnetic radiation substantially in phase over an intended range of frequencies. The segment may be arranged on a flexible substrate which can be operatively curved for insertion into a radome. Alternatively, the segment may be directly arranged on the curved inner surface of a radome.