Showing papers on "Microstrip antenna published in 1971"

Microstrip ring resonator and dispersion measurement on microstrip lines

Abstract: A theory is described which takes into account the curvature of the microstrip ring resonator. This curvature is shown to have a large influence on dispersion measurements on microstrip lines with small impedences.

Computation of Lumped Microstrip Capacities by Matrix Methods - Rectangular Sections and End Effect (Correspondence)

Abstract: The method of moments is applied to three-dimensional microstrip problems to calculate lumped (or excess) capacitance. As examples, the capacitance of open-circuited microstrip lines and the capacitance of rectangular microstrip sections are computed. The open-circuit data are basic to any three-dimensional problem. The method is a general one and can be used to compute the lumped capacitance of any microstrip discontinuity, such as bends and T junctions.

Microstrip to microstrip transition

Abstract: A coupling arrangement for microstrip systems, each system characterized by a dielectric with a ground plane contacting one side thereof and a conductive strip fastened to the other side. A small coupling hole in the ground plane immediately underlies the strip conductor at a current maximum for signal along the line. Two such microstrip systems are placed in back-to-back relation with their ground planes in physical contact and their coupling holes in registry to transfer signal being propagated in a transverse electromagnetic mode via one of the strip conductors to the other of the strip conductors and ultimately to a desired point or points of utilization. In a specific application of the invention, the coupled microstrip systems are used to transfer signal energy from a feed network to a phased array of antenna elements.

MSTRIP (Parameters of Microstrip) (Computer Program Descriptions)

Abstract: This program calculates the characteristic impedance, phase velocity, and effective dielectric constant of single or coupled microstrip lines. Parameters to be specified by the user are as follows: range of W/H/sub 1/, S/H/sub 1/, substrate dielectric constant, single or coupled lines with or without an upper ground plane.

Foreshortening of Microstrip Open Circuits on Alumina Substrates

Abstract: One particular discontinuity encountered in microstrip circuitry, the end effect of microstrip lines, is discussed. Experimental data of the end effect of 10 microstrip lines are plotted and compared with previously published data. Results reported here are consistent with that which is known about the edge effect of uniform microstrip transmission lines.

An Array of Pulsed X-Band Microstrip Gunn Diode Transmitters with Temperature Stabilization

Abstract: The construction of pulsed microstrip Gunn diode transmitters which deliver 5-10 W at 9.4 GHz is described. The oscillators are designed to be used as injection locked elements in a simple phased array system; the necessary phase stability against ambient and in-pulse temperature change being achieved by suitably biasing a varactor diode. Details of the design and performance of the transmitter and its component parts are presented together with preliminary data on a small array.