Measuring the accretion rate and kinetic luminosity functions of supermassive black holes
(2007)
The first polarimetric signatures of infrared jets in X-ray binaries
(2007)
Compact broadband planar orthomode transducer
ArXiv 0709.1777 (2007)
Abstract:
We present the design and test results of a compact C-band orthomode transducer which comprises four rectangular probes orthogonally arranged in a circular waveguide, designed to work in the WG13 band. Measurements of the system in the frequency range 4.64 GHz to 7.05 GHz agree very well with simulation results and show a cross-polarisation level below -58 dB, a return loss of about -20 dB, and an insertion loss difference of less than 0.18 dB between the orthogonal polarisation modes across the full waveguide band.Characteristics of EGRET Blazars in the VLBA Imaging and Polarimetry Survey (VIPS)
(2007)