Results 51 to 60 of about 4,683 (209)

Design and Implementation of a New 4 × 4 BFN Using Multi‐Aperture and Multislot Coupler for 5G Application

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper proposes a 4 × 4 beamforming network (BFN) using a novel configuration. The proposed architecture utilizes a two‐layer multi‐aperture and multislot coupler (MA/MSC). Power coupling between ports within each layer is achieved through designed apertures.
H. Hassanshahi, M. Jafari Shahbazzadeh, M. Eslami, H. Zayandehroodi, Ali Gharsallah   +4 more
wiley   +1 more source

Design of a Low-SLL SIW Slot Array Antenna With a Large Declination in $Ka$ -Band

IEEE Access, 2019
A small-size large-declination longitudinal slot array antenna based on substrate integrated waveguide (SIW) technology was proposed. Compared with the conventional SIW slot array, the proposed antenna achieves a larger declination and a lower SLL.
Chengwei Zhao, Xiaoping Li, Chao Sun, He Huang, Yanming Liu   +4 more
doaj   +1 more source

Microstrip Patch Antennas Fed by Substrate Integrated Waveguide [PDF]

, 2013
Dizertační práce je zaměřena na výzkum mikropáskových flíčkových antén a anténních řad napájených vlnovodem integrovaným do substrátu (SIW). Využitím vlnovodu integrovaného do substrátu pro napájení mikropáskové flíčkové antény dochází ke kombinaci ...
Mikulášek, Tomáš
core  

Efficient Frequency Sweep in RF Devices Simulation: A Combined Approach of Asymptotic Waveform Evaluation and Multigrid Solver

Engineering Reports, Volume 7, Issue 11, November 2025.
A combined AWE‐Multigrid approach accelerates RF frequency sweeping by reducing computation time and resources through asymptotic expansions and multilevel grid resolution, validated by numerical experiments demonstrating superior performance over traditional methods.
Lingzhi Ren, Tao Li, Haili Zhang
wiley   +1 more source

Compact dual‐layer substrate‐integrated waveguide bandpass filters with controllable transmission zeros

IET Microwaves, Antennas & Propagation, 2021
A design method for compact substrate‐integrated waveguide (SIW) bandpass filters (BPF) with controllable finite transmission zeros (FTZs) is proposed in this work, which is realised by a dual‐layer SIW structure with two single‐mode SIW cavities in the ...
Qing Liu, Jinjin Wei, Na An, Min Tang, Dewei Zhang, Dongfang Zhou   +5 more
doaj   +1 more source

High‐Performance Multiport Antenna With Frequency Selective Surface for 5G Ka‐Band Applications

Radio Science, Volume 60, Issue 11, November 2025.
Abstract This paper presents a novel multiport antenna tailored for 5G millimeter‐wave (mm‐Wave) applications. The proposed design features orthogonally arranged radiating elements to ensure compactness with an overall footprint of just 20 × 26 mm2.
Mohammad Alibakhshikenari, Iftikhar ud Din, Nouf Abd Elmunim, Bal S. Virdee, Sunil Kumar, Sadiq Ullah, Muhammad Akmal Chaudhary, Nisar Ahmad Abbasi, Chan Hwang See, Ernesto Limiti, Takfarinas Saber   +10 more
wiley   +1 more source

Electronically tunable graphene-based half-mode SIW phase shifter [PDF]

AIP Advances
This paper presents a proof of concept for the first graphene-based half-mode substrate integrated waveguide (GHMSIW) phase shifter. The GHMSIW phase shifter comprises a half-mode substrate integrated waveguide (SIW) transmission line and a single stub ...
Shakir Ullah, Muhammad Yasir
doaj   +1 more source

Balanced substrate integrated waveguide filters with controllable finite transmission zeros

IET Microwaves, Antennas & Propagation, 2021
This article presents a design method for balanced substrate integrated waveguide (SIW) filters with controllable finite transmission zeros (FTZs).
Qing Liu, Na An, Zhongyang He, Dewei Zhang, Xian Wang, Dongfang Zhou   +5 more
doaj   +1 more source

Wearable, small, and robust: the circular quarter-mode textile antenna [PDF]

, 2015
A miniaturized wearable antenna, entirely implemented in textile materials, is proposed that relies on a quarter-mode substrate integrated waveguide topology.
Agneessens, Sam, Lemey, Sam, Rogier, Hendrik, Vervust, Thomas   +3 more
core   +1 more source

AGORA: Adaptive Generation of Orthogonal Rational Approximations for Frequency‐Response Data

International Journal of Circuit Theory and Applications, Volume 53, Issue 10, Page 5751-5759, October 2025.
This paper introduces the adaptive generation of orthogonal rational approximations (AGORA) method for rational function approximation of measured or simulated microwave network parameters. AGORA allows estimating the model order for a given error tolerance and does not require any initial estimates or adjustment of hyperparameters. ABSTRACT This paper
Andria Lemus, Arif Ege Engin
wiley   +1 more source