In this article, we present a novel ultrawideband branch waveguide coupler (BWC) with low
amplitude imbalance. This novel design is based on a new structure of branch waveguide …

This paper presents the research on a 220 GHz multi circuit inte‐grated front end based on
solid‐state circuits. This integrated front end integrates a 220 GHz subharmonic mixer, a 110 …

This paper presents a mechanical reliability study of 3-dB waveguide hybrid couplers in
submillimeter and terahertz bands. To show the necessity of improving the mechanical …

In this paper, a compact waveguide magic-T for high-power solid-state power combining is
proposed. The coplanar arms of the E and H ports are realized by the E-plane power divider …

This letter presents our investigation into a 3-dB waveguide hybrid coupler of a novel
structure in the submillimeter frequency band. The proposed coupler has only three coupling …

In this work, a class of innovative waveguide couplers with polarized rotation characteristics
are proposed and demonstrated for the first time. Different from all conventional waveguide …

We present a design and synthesis procedure for a new 90° waveguide hybrid with ultra-low
amplitude imbalance. This novel hybrid design is based on Reed's multiple branch …

We present a novel compact wideband waveguide T-junction power divider, especially
suited for millimeter-wave and THz frequencies. It incorporates substrate-based elements …

Zhongqian Niu Member, IEEE, was born in Luoyang, Henan, China, in 1991. He received
the BE and Ph. D. degrees in electronic science and technology from the University of …

This letter presents a ring-shaped E-plane filtering coupler working at 150 GHz with high
performance. The coupler is based on cavity resonators. Unlike the conventional ones, the …