Abstract: The present invention provides compounds of the structural Formula (I), and pharmaceutically acceptable salts thereof, wherein, are as defined herein, pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other therapeutically active agents), and methods for their preparation and use, alone and in combination with other therapeutic agents, as antagonists of A2a and/or A2b receptors, and in the treatment of a variety of diseases, conditions, or disorders that are mediated, at least in part, by the adenosine A2a receptor and/or the adenosine A2b receptor.

Abstract: A direction-finding co-linear antenna is provided by collinearly aligning an exposed reference antenna with a primary antenna that is surrounded by a dielectric sleeve with a predetermined thickness and the reference and primary antennas are separated by a ground plane. The direction-finding co-linear antenna provides a simple, light-weight and inexpensive arrangement with fewer antennas and reduced antenna spacing that avoids unwanted detection because of a smaller electronic footprint that consists of the area of a single antenna plus a few inches of dielectric material in the sleeves rather than four widely spaced antennas positioned in an array. The direction-finding co-linear antenna apparatus also requires less electronic processing because the antenna only needs to address the RF from two antennas rather than from four or five antennas in a conventional array arrangement.

Abstract: A composite structure including stacked layers of dielectric material hav a center conductor in the form of a cylindrical via which is surrounded by an annular dielectric region and an outer ground plane comprised of contiguous pairs of generally circular ground plane segments where each pair of ground plane segments are separated by a pair of spaces or gaps therebetween and wherein the gaps of adjoining layers are mutually oriented by a predetermined angle of rotation, preferably 90.degree..

Abstract: A composite structure including stacked layers of dielectric material hav a center conductor in the form of a cylindrical via which is surrounded by an annular dielectric region and an outer ground plane comprised of contiguous pairs of generally circular ground plane segments where each pair of ground plane segments are separated by a pair of spaces or gaps therebetween and wherein the gaps of adjoining layers are mutually oriented by a predetermined angle of rotation, preferably 90.degree..

Abstract: An improved anti-wicking connector for releasably connecting an integrated circuit or other electrical component to a printed circuit board. Electrically conductive contacts are pre-formed into a loop, horizontal section, and tail configuration for insertion into respective recesses of an electrically insulating housing. Housing recesses have top openings to receive integrated circuit leads and bottom openings to receive the contacts and through which the electrically conductive contacts extend for connecting to the printed circuit board. The loop of the contact is inserted into the housing recess and secured in place by heat-staking. Horizontal sections of the inserted contact loops are dimensioned to substantially seal the bottom opening of the recesses to prevent flux and solder wicking up into the housing which can tack or contaminate the I.C. leads during or after soldering of the contact tails to the circuit board.