Jiashan Liu

TL;DR: In this article, the authors proposed a fully metallic crossover-in-antenna based on an anisotropic lens. But the work is limited to the Ka-band, where the waveguide crossover is well realized with reflection coefficients lower than −15 dB and insertion losses mostly lower than 1.4 dB from 28.7 to 38.2 GHz.

TL;DR: In this paper, a fully metallic millimeter-wave (MMW) periodic leaky-wave antenna (LWA) based on corrugated parallel-plate waveguides with high radiation efficiency and low machining complexity is presented.

TL;DR: The feedback between gate and drain, which is neglected in a previous work, is considered, which improves the accuracy of the coupling matrix model for transistors, and the relationship between the coupling matrices and the noise figure is established, which extends the coupling Matrix method to tackle noise-related circuit functions.

TL;DR: In this article, a waveguide-fed antipodal exponential tapered slot antenna (AETSA) was proposed to achieve wideband circular polarization, which achieved a right-hand circularly polarized axial ratio lower than 3dB in 94.5% bandwidth.

TL;DR: In this article, a partially open corrugated waveguide (CW) is employed to construct the Ka-band linearly polarized (LP) and circularly polarized (CP) frequency-scanning (FS) periodic leaky-wave antennas (PLWAs) with the spatial coverages from backward to forward.