Analysis of a Substrate Integrated Waveguide Hybrid Ring (Rat-Race) Coupler by Ramin Dehdasht-Heydari, Keyvan Forooraghi, Mohammad Naser-Moghadasi

“…This paper presents an efficient analysis of a substrate integrated waveguide (SIW) single-layer hybrid ring coupler (rat-race) for millimeter-wave and microwave applications. …”
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Nanoantenna-coupled broadband and ultra-compact plasmonic waveguide modulator based on graphene by Yijing Xu, Canran Zhang, Qilong Wang

“…In this paper, we report an antenna-coupled plasmonic slot waveguide modulator based on graphene. The modulator integrates gold nanoantenna and plasmonic slot waveguide. …”
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Extraction of optical wave structures to the coupled fractional system in magneto-optic waveguides by Jan Muhammad, Muhammad Bilal Riaz, Usman Younas, Naila Nasreen, Adil Jhangeer, Dianchen Lu

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Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications by Wei Li, P. Anantha, Kwang Hong Lee, Hao Dong Qiu, Xin Guo, Simon Chun Kiat Goh, Lin Zhang, Hong Wang, Richard A. Soref, Chuan Seng Tan

“…Spiral waveguide sensors with a low bending loss on this platform enable compact sensors for mid-IR absorption spectroscopy. …”
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Integrated TE optical isolator based on magneto-optical perturbation in coupled waveguides by Kimhong Chao, Vy Yam, Laurent Vivien, Béatrice Dagens

“…Abstract Photonic integrated circuits (PICs) increasingly require more advanced integrated functionalities and devices to meet the key application challenges. …”
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Millimeter-Wave 2D Retrodirective Beamformer Based on Waveguide Rotman Lens by Sooyoung Oh, Yeonsoo Kim, Kyungbin Cho, Hojin Lee, Juntaek Oh, Sun K. Hong

“…While prior Rotman lens-based retrodirective systems have focused on one-dimensional (1D) beamforming, their applicability is limited. To enable more adaptive and efficient beamforming, two-dimensional (2D) beamforming is essential which can be achieved with Rotman lens as it features fully passive, true-time delay operation. …”
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Shear-induced acoustic emission and energy evolution in granular-filled active waveguide by Lizheng Deng, Hongyong Yuan, Guofeng Su, Jianguo Chen, Yang Chen, Mingzhi Zhang

“…Acoustic emission (AE) technology with active waveguide arrays is an effective method increasingly used for the subsurface deformation monitoring of landslides. …”
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Real-Time Vocal Tract Model for Elongation of Segment Lengths in a Waveguide Model by Tahir Mushtaq QURESHI, Muhammad ISHAQ

“…The proposed model is about 23% more efficient than the previous model.…”
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Flat Top Non-Polarizing Optical Bandpass Filtering in Form of Planar Optical Waveguide by Jianhua Liu, Ping Jiang

“…To obtain a flat top shaped passband in a conventional thin-film-based optical bandpass filter (OBF), it needs a large number of constitutional layers of thin films, which makes the film deposition systems more complicated and accumulates errors in film growth. …”
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INFLUENCE OF DYNAMIC MAGNETIZATION TO IMPROVE THE EFFICIENCY OF ELECTROMAGNETIC-ACOUSTIC TRANSFORMATION WITH WAVEGUIDE CONTROL RODS by D. V. Zlobin, L. V. Volkova

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Waveguide Quarter-Wave Transverse Ridge Resonators on Quasi-TEM Wave and Filters on Their Basis by A. А. Sorkin, A. V. Minakov, Yu. P. Salomatov

“…Taking this into account, we investigate a transverse waveguide ridge resonator of a quarter-wave structure. …”
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TERAHERTZ TRAVELING-WAVE TUBE ON A RECTANGULAR WAVEGUIDE FOLDED IN A CIRCULAR SPIRAL by A. A. Kurayev, V. V. Matveyenka

“…Based on numerical simulation, it is shown that proposed TWT achieves Gн = 42÷48 dB saturation gain in the 220 GHz range with the waveguide turn number n = 40÷50. The proposed TWT design on a rectangular waveguide folded in a circular spiral is more technologically advanced than the TWT on a planar-spiral waveguide. …”
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Simultaneous Measurement of Humidity and Temperature Using a Hybrid Plasmonic Waveguide Bragg Grating by Zeng Wang, Guangxi Hu, Haimei Luo, Jiajia Zhao, Daixing Duan, Wen Yuan

“…Due to the convenient adherence of PVA microfiber to metal gratings and its easy connectivity to silica fiber tapers, the hybrid plasmonic waveguide sensor exhibits high flexibility. Numerical calculation reveals that TM polarization shows more prominent Bragg reflection owing to hybrid plasmonic modes exciting. …”
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Dynamically Encircling Multiple Exceptional Points in Waveguides System: Asymmetric–symmetric Multimode Switching by Xiaoxiao Wang, Huixin Qi, Yandong Li, Xiaoyong Hu, Xingyuan Wang, Qihuang Gong

“…During non‐chiral dynamics, the initial states are not on the Riemann sheet that forms the EPs, encircling both exceptional points produces more branch cuts than encircling a single exceptional point. …”
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A Prediction Method for Acoustic Intensity Vector Field of Elastic Structure in Shallow Water Waveguide by Wenbo Wang, Desen Yang, Jie Shi

“…Compared with scalar sound field, vector sound field explained the spatial structure of sound field better since it not only presents the sound energy distribution but also describes the sound energy flow characteristics. Particularly, with more complicated interaction among different wavefronts, the vector sound field characteristics of an elastic structure in a shallow water waveguide are worthy of studying. …”
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A 3D-Printed Bent–Twisted Waveguide Filter Using Mixed TE₁₀₁ and TE₁₀₂ Mode Resonators by Lei Wang, Mengke Bai, Jun Xu

“…This paper presents a waveguide bandpass filter that integrates bending and twisting functions, utilizing mixed TE₁₀₁ and TE₁₀₂ mode resonators. …”
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Evolution of Acoustic Emission Characteristics During Soil Shear Testing Based on Active Waveguide System by WU Xin, LIU Yonghong, WANG Xuemei, ZHANG Man

“…This research uses an active waveguide system and acoustic emission (AE) technology to examine the evolution of AE signal characteristics under different shear conditions. …”
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Research on a 220-GHz modified staggered double corrugated waveguide backward wave oscillator by Weihua Ge, Sheng Yu

“…The 3-D interaction simulation results reveal that more than 80.6 W of average output power can be produced from 210 to 238 GHz and the highest electron efficiency of 2.5% can be obtained at 211.5 GHz. …”
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Design and Simulation of Bethe Hole Coupler Using Ridge Gap Waveguide Technology for Satellite Communication by Kamran Salehian, Gholamreza Moradi

“…RGW transition design is usually more difficult than other gap waveguide structures. …”
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Technology Development of a High Power Low-Cost Waveguide Switch for Satellite Transponder Applications by Elham Sharifi Moghaddam, Mohsen Shafeghati, Behzad Ahmadi

“…This article presents a double pole double throw (DPDT) waveguide switch in the Ku band with significantly lower manufacturing costs than competing switches. …”
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