The 110 m radio telescope (QTT), which is proposed to be built in Xinjiang Qitai, will be in
the list of world-leading large scale scientific facilities, becoming the world's largest fully …

The MeerKAT is a precursor for the ldquosmall dish plus single-pixel wide-band feedrdquo
scenario for the Square Kilometre Array (SKA). The current goal specification is for an array …

This thesis presents the development of a hat-fed refector antenna with radome to be used
as satellite earth station. The antenna with self supported feed is relatively compact, circular …

The Chinese Spectral Radioheliograph (CSRH) covering 400 MHz-15 GHz frequency range
was constructed during 2009–2016 in Mingantu Observing Station, National Astronomical …

The system design of a cryogenic 2-13 GHz feed is considered with emphasis on its
application in future wideband radio telescope systems. The feed is based on the so-called …

We derive a general fundamental directivity limitation formula that applies to
nonsuperreactive antennas of any size that fit within a minimum sphere of any given radius …

This paper describes electromagnetic modeling and experimental investigation of the
symmetrically fed log-periodic dipole antenna (LPDA) array. The array consists of two …

Next generation of instruments for radio astronomy will benefit greatly from reflector antenna
feeds that demonstrate very wide instantaneous bandwidth and exhibit low noise behavior …

We provide for the first time the experimental characterization of a planarly fed
ultrawideband leaky lens antenna. The paper includes the description and the experimental …

A new linearly polarized eleven feed for operation between 1 and 10 GHz is presented. This
frequency band is higher than the realized before, and the input reflection coefficient is …