Article
Engineering, Electrical & Electronic
Quanfeng Wang, Yunru Zhao, Qi Wu
Summary: An improved polynomial chaos expansion (PCE) method is proposed in this paper to enhance computational efficiency by decomposing a large array into small groups and integrating the results. Moreover, the method can be integrated with the method of moments for real-world array analysis.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Amir K. Rashid, Qingfeng Zhang
Summary: This paper presents a detailed formulation of a simple Galerkin method of moments (MoM). It utilizes compact closed-form expressions of mutual impedance among filamentary sinusoidal monopoles. By using piecewise sinusoidal basis functions, the mutual impedance of thick-wire sections can be computed efficiently. Unlike other MoM techniques, only a single integral is required to calculate each element of the impedance matrix. The proposed method remains efficient for arbitrarily long/thick antennas.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Fang Zhu, Meng Ru Jiao, Xin Zhao, Kuikui Fan, Guo Qing Luo, Ke Wu
Summary: This letter introduces a planar mode composite folded substrate integrated waveguide (MCFSIW) that enables the simultaneous propagation of the TE10 and folded TE10 (FTE10) modes. By adjusting the gap width of the MCFSIW, the cutoff frequency of the FTE10 mode can be tuned to match that of the TE10 mode. A simple joint feeding network (JFN) is designed to independently excite the two modes, with wide bandwidth and high isolation. The prototype of the MCFSIW with JFNs is fabricated and measured, showing good agreement with simulations.
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
(2022)
Article
Computer Science, Information Systems
Farah Bilawal, Fatemeh Babaeian, Kim Tuyen Trinh, Nemai Chandra Karmakar
Summary: Substrate-integrated-waveguide (SIW) technology can eliminate the limitations of conventional rectangular waveguides and microstrip structures at higher frequencies. In this paper, different types of SIW power dividers are analyzed and design guidelines are provided. This study is valuable for selecting and designing SIW power dividers for specific microwave and millimeter-wave applications.
Article
Engineering, Electrical & Electronic
Prashant Kumar Varshney, M. Jaleel Akhtar
Summary: The sensor proposed in this work utilizes substrate integrated waveguide technology, demonstrating high sensitivity and linearity for reliable rotation measurements within a range of 90 degrees.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Ji-Wei Lian, Dazhi Ding, Rushan Chen
Summary: A wideband metasurface antenna operating at millimeter-wave spectrum in substrate-integrated waveguide (SIW) technology is proposed. The proposed metasurface antenna achieves a wide 10 dB impedance bandwidth in simulation from 19.2 to 42.4 GHz, indicating a fractional bandwidth of 75%. The development of the proposed metasurface antenna can be divided into four stages, and its working mechanism is explained in detail.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Peng Chu, Peng Zhu, Jianguo Feng, Lei Guo, Long Zhang, Fang Zhu, Leilei Liu, Guo Qing Luo, Ke Wu
Summary: This article explores the flexible use of mixed coupling in substrate integrated waveguide (SIW) filters to improve selectivity. A mixed coupling structure is proposed as a universal module to produce transmission zeros (TZs) in SIW filters without degrading their superiority. Additionally, a trisection with mixed cross-coupling is proposed to efficiently produce a quasi-elliptic response in SIW filters. Three prototypes were designed, fabricated, and measured, with results aligning with expectations. These techniques will facilitate the development of high-performance SIW filters in microwave/wireless circuits and systems.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Engineering, Electrical & Electronic
Leila Ahmadi, Amir Ahmad Shishegar
Summary: This study presents a new closed-form expression based on the method of moments (MoM) for solving the scattering problem in piecewise homogeneous media. The proposed expression represents the scattered field explicitly as a function of the permittivity value of each homogeneous part, with matrix coefficients independent of the permittivity values. This approach allows for a semi-explicit procedure for updating the solution with less computational complexity when the geometry remains unchanged.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Computer Science, Information Systems
Zihao Liu, Yuan Yao, Xiaohe Cheng, Qi Li
Summary: To meet the packaging requirements of THz communication systems, a compact microstrip line to rectangular waveguide transition is proposed in this paper. The transition utilizes a tapered MSL for mode conversion on substrate and is easy to process in THz bands. The design achieves good S-parameters throughout the entire frequency band.
Article
Computer Science, Information Systems
Roberto Vincenti Gatti, Riccardo Rossi, Marco Dionigi
Summary: A broadband rectangular waveguide to substrate integrated waveguide power divider for hybrid beam forming networks is presented. The design utilizes rectangular waveguide symmetric E-plane irises to implement a multi-section matching network. By using a hybrid circuit and full-wave design procedure, three matching networks with progressively increasing bandwidth are synthesized, exceeding the state of the art in the last two cases. Three proof-of-concept prototypes are manufactured and tested to validate the design procedure, with good agreement between simulated and measured performance confirming the validity of the proposed solution.
Review
Computer Science, Information Systems
Xiaonan Sun, Jitong Ma, Yulin Feng, Jun Shi, Zhixia Xu
Summary: This paper introduces the development and miniaturization trend of substrate integrated waveguide (SIW) filtering antenna (FA) circuit, and briefly introduces the structure and historical development of SIW FA. Several methods and design examples of SIW FA miniaturization are presented. The FA retains the advantages of SIW structure, including small size, low insertion loss, high quality-factors, and easy integration, making it applicable in various fields such as 5G and wireless local area network communications.
Article
Engineering, Electrical & Electronic
Syed M. Sifat, Shoukry I. Shams, Ahmed A. Kishk
Summary: This study proposes a structure solution using artificial magnetic conductors to address electrical contact issues at mm-wave frequencies, achieving suppression of leakage and improved radiation characteristics for a multilayer pyramidal horn antenna.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Kaijun Song, Qian Li, Xinjun Zou, Yong Fan
Summary: A substrate integrated waveguide (SIW) radial sixteen-way power divider is proposed in this study. This power divider uses two layer substrates, with one layer designing the radial power divider cavity of the SIW and the other layer designing the star-shaped microstrip isolation network. To enhance the isolation performance, radial slots are cut in the metal layer of the SIW and isolation resistors are added. Step impedance probes ensure good matching of input and output ports. A SIW radial sixteen-way power divider is manufactured and measured to validate the design. The measured results indicate a 15-dB input bandwidth and output bandwidth of 12.6% and 20.2% respectively, an insert loss (IL) lower than 2 dB, and an isolation better than 15 dB between the output ports.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2023)
Article
Optics
Shaonan Zheng, Hong Cai, Linfang Xu, Nanxi Li, Zhonghua Gu, Yao Zhang, Weiguo Chen, Yanyan Zhou, Qingxin Zhang, Lennon Yao Ting Lee
Summary: This article introduces a chip-scale silicon substrate-integrated hollow waveguide (Si-iHWG) for optical gas sensing, which provides a compact, versatile, robust, and cost-effective sensing solution.
PHOTONICS RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Kai Sun, Yongpin Chen, Sihao Liu, Yanwen Zhao, Deqiang Yang
Summary: This paper presents a complementary source array based on SIW, which enhances beamwidth by cascading complementary sources. A nine-element line array is designed, fabricated, and tested, extending the E-plane half-power beamwidth from 80 degrees to 180 degrees.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
