Radio holographic measurements using the MeerKAT telescope are presented for each of
its supported observing bands, namely UHF (544–1087 MHz), L (856–1711 MHz), and S …

Line intensity mapping (LIM) is a new technique for tracing the global properties of galaxies
over cosmic time. Detection of the very faint signals from redshifted carbon monoxide (CO), a …

This paper demonstrates an ultra-light weight microwave rotary vane attenuator (RVA)
manufactured using polymer-based 3-D printing. In addition, for the first time, conductive …

The turnstile junction exhibits very low cross-polarization leakage and is suitable for low-
noise millimeter-wave receivers. For use in a cryogenic receiver, it is best if the orthomode …

We present a novel machinable 90° waveguide twist design suitable for broadband
applications from microwave to terahertz frequency. The design achieves compactness and …

We report on the design, fabrication, and measured results of a turnstile quad-ridge
orthomode transducer (OMT) suitable for millimeter-wavelength receivers used in radio …

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 …

A quadruple-ridged flared horn (QRFH) antenna is typically fed asymmetrically by the centre
conductor of a coaxial transmission line. Both the desired odd and undesired even modes …

A Potter horn and a compact orthomode transducer operating at 150 GHz are designed
using full wave analysis. The Potter horn patterns have good symmetry within the main …

A study investigating the physical properties and use of the SiAl composite Controlled
Expansion 7 (CE7) for the packaging of silicon bolometric detectors for millimeter-wave …