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Displaying 626 - 650 of 655

De-embedding Coplanar Probes with Planar Distributed Standards

December 1, 1988
Author(s)
Dylan F. Williams, Tom H. Miers
Two methods are used to de-embed coplanar probes using offset coplanar waveguide shorts and transmission lines. The accuracy of the de-embedded measurements is verified. The S parameters of lumped standards provided by the manufacturer of the probes are

A Coplanar Probe to Microstrip Transition

July 1, 1988
Author(s)
Dylan F. Williams, Tom H. Miers
A transition between a coplanar probe and a microstrip transmission line is reported. The transition is significant in that it does not require substrate via holes. A set of microstrip impedance standards were developed for the purpose of de-embedding the

Adjustable tuning for planar millimeter-wave circuits

August 12, 1986
Author(s)
Dylan F. Williams, S E. Schwarz, J. A. Sedlacek, D J. Ehrlich
At millimeter wavelengths uncontrollable parasitics are of ten large enough to significantly degrade circuit performance when they are not compensated by adjustable elements. It is difficult to add adjustable elements to planar millimeter-wave circuits

High-Field Flux Pinning and the Strain Scaling Law

December 1, 1985
Author(s)
John (Jack) W. Ekin
The effects of strain on flux pinning in superconductors are discussed. Significant differences between the strain scaling law, temperature scaling law, and the flux-line-shearing model of Kramer are demonstrated. The strain scaling law is more general

A planar subharmonically-pumped 71 GHz receiver with integral feed antenna

November 12, 1985
Author(s)
Dylan F. Williams, S E. Schwarz
A planar, subharmonically-pumped, hybrid millimeter-wave receiver with integral antenna is described. Coplanar waveguide filters are used to isolate the ports and provide image enhancement. The integral planar antenna has 12 dB gain and is suited for use

Design and Performance of Coplanar Waveguide Bandpass Filters

July 1, 1983
Author(s)
Dylan F. Williams, S E. Schwarz
End-coupled resonator bandpass filters built in coplanar waveguide are investigated. The admittance inverter parameters of the coupling gaps between resonant sections are deduced from experiment, and bandpass filter design rules are developed. This allows
Displaying 626 - 650 of 655