3 papers
astro-ph.IM2019
Reflectionless Filters for Generalized Transmission Functions
Augusto Guilabert, Matthew Morgan, Tod Boyd
Single-ended circuit topologies, and a theorem for the development thereof, are presented with which one may realize constant-resistance (or reflectionless) filters, having ideally…
astro-ph.IM2017
A Highly-Sensitive Cryogenic Phased Array Feed for the Green Bank Telescope
D. Anish Roshi, W. Shillue, J. R. Fisher +15
In this paper, we describe the development of a new L-band (1.4 GHz) Cryogenic Phased Array Feed (PAF) system, referred to as the GBT2 array. Results from initial measurements made…
astro-ph.IM2015
A 10-100 GHz Coax To Double-Ridged Waveguide Launcher and Horn Antenna
Matthew A. Morgan, Tod A. Boyd
The design, fabrication, and measurement of a coax to double-ridged waveguide launcher and horn antenna is presented. The novel launcher design employs two symmetric field probes a…