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Electronics
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Microwave/Millimeter-Wave Integrated Circuits and Systems for Wireless Communication
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Microwave/Millimeter-Wave Integrated Circuits and Systems for Wireless Communication

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 2148

Special Issue Editors

Prof. Dr. Bian Wu

E-Mail Website
Guest Editor
School of Electronic Engineering, Xidian University, Xi’an 710055, China
Interests: microwave/millimeter-wave devices and antennas; millimeter-wave and THz devices and systems
Special Issues, Collections and Topics in MDPI journals
Dr. Haoran Zu

E-Mail Website
Guest Editor
School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China
Interests: microwave/millimeter wave devices and antennas; microwave/millimeter wave transparent system
Prof. Dr. Yongle Wu

E-Mail Website
Guest Editor
School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: microwave theory; radio frequency chip; high frequency antenna; millimeter wave circuit and system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit papers to this Special Issue of Electronics (MDPI), devoted to “Microwave/Millimeter-Wave Integrated Circuits and Systems for Wireless Communication”. As a key technology of modern wireless communication, microwave/millimeter-wave integrated circuits and systems composed of antennas, filters (duplex/multiplexers), couplers, power dividers, and metamaterials have consistently been a research hotspot in the field of communication technology. High frequency, miniaturization, multi-band/multi-mode, low-cost, and easy system integration have become the main research directions. So far, microwave/millimeter-wave technologies have been widely used in radars, communication, navigation, and medical treatment systems. At the same time, in response to the diversified application requirements of different wireless communication application fields, various integrated circuits and systems have been reported, such as integrated devices, high-speed transmission systems, multi-function antennas/metasurfaces, etc. This Special Issue aims to comprehensively collect the latest papers dedicated to the theory and application of microwave/millimeter-wave integrated circuits and systems for wireless communications. Therefore, we invite qualified scientists in this field to submit their valuable contributions in the form of research articles and reviews on areas which may include (but are not limited to) the following:

  • Wireless or mobile communication systems;
  • Integrated or multifunctional devices;
  • Antenna theory and antenna array techniques;
  • RF/microwave/mm wave components/circuits;
  • Metamaterials/metasurface/smart surface;
  • Artificial dielectric materials;
  • Artificial intelligence for RF/wireless/antennas;
  • RF/mm wave system applications.

We look forward to receiving your contributions.

Prof. Dr. Bian Wu
Dr. Haoran Zu
Prof. Dr. Yongle Wu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • integrated circuits and systems
  • miniaturization/multifunction
  • antenna/array
  • filters/multiplexer
  • microwave/millimeter-wave
  • coupler/power divider
  • metamaterial/metasurface

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

10 pages, 4638 KiB  
Communication
Optimized Ferrite Loading Strategy for Standing-Wave Antenna Miniaturization: A New Paradigm
by Tong Wu, Weisen Guo, Xiaodong Yang and Zhiya Zhang
Electronics 2025, 14(10), 1968; https://doi.org/10.3390/electronics14101968 - 12 May 2025
Viewed by 177
Abstract
This communication introduces a novel antenna miniaturization approach by strategically loading ferrites in distinct near-field regions. By identifying electric (E)- and magnetic (H)-field dominant zones in the antenna near-field, region-specific ferrites are strategically selected: high permittivity (εr) materials for E-field zones [...] Read more.
This communication introduces a novel antenna miniaturization approach by strategically loading ferrites in distinct near-field regions. By identifying electric (E)- and magnetic (H)-field dominant zones in the antenna near-field, region-specific ferrites are strategically selected: high permittivity (εr) materials for E-field zones and high permeability (µr) materials for H-field zones. This strategy maximizes miniaturization while minimizing losses and the increase in antenna weight resulting from ferrite loading. To validate this method, a bent inverted-F antenna was designed and measured. The experimental results demonstrate that loading ferrites in E-field regions reduces the operating frequency from 2555–2620 MHz to 2230–2293 MHz with 68% efficiency, 20% higher than traditional full-coverage loading. Equivalent circuit analysis further reveals that selective loading increases capacitance/inductance for miniaturization while suppressing losses. This work establishes a new paradigm for a functional-material-based antenna design and offers a new research route for the fabrication of functional materials, aligning with 5G/6G demands for compact, integrated, low-loss systems. Full article
(This article belongs to the Special Issue Microwave/Millimeter-Wave Integrated Circuits and Systems for Wireless Communication)
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10 pages, 2243 KiB  
Article
Dynamically Tunable Multifunction Attenuator Based on Graphene-Integrated Dual-Mode Microstrip Resonators
by Zhi-Qiang Yang, Quan-Long Wen, Chi Fan, Bian Wu and Yang Qiu
Electronics 2025, 14(1), 137; https://doi.org/10.3390/electronics14010137 - 31 Dec 2024
Viewed by 659
Abstract
In this paper, a method for the design of tunable multifunctional attenuators is proposed by analyzing the characterization of dual-mode microstrip resonators loaded by a graphene-sandwiched structure (GSS). Firstly, the odd–even mode method is applied to analyze the resonance characteristics of two common [...] Read more.
In this paper, a method for the design of tunable multifunctional attenuators is proposed by analyzing the characterization of dual-mode microstrip resonators loaded by a graphene-sandwiched structure (GSS). Firstly, the odd–even mode method is applied to analyze the resonance characteristics of two common GSS-loaded dual-mode resonators, which clearly describe the influence of graphene on these resonators. Then, two kinds of multifunctional attenuator with dynamically tunable attenuation are proposed based on graphene-integrated dual-mode resonators, which enables controllable characteristics and multi-frequency transmission options for traditional attenuating devices. Finally, all the proposed multifunctional attenuators are fabricated and measured. The experimental results are in good agreement with the simulation results, which further verifies the conclusions and design method proposed in this paper. Full article
(This article belongs to the Special Issue Microwave/Millimeter-Wave Integrated Circuits and Systems for Wireless Communication)
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11 pages, 6207 KiB  
Article
A Generalized Design of On-Chip LTCC Balanced Filters Using Novel Hybrid Resonators with Intrinsic Ultra-Wideband Suppression for 5G Applications
by Wei Zhao, Yongle Wu, Zuoyu Xu and Weimin Wang
Electronics 2025, 14(1), 17; https://doi.org/10.3390/electronics14010017 - 24 Dec 2024
Viewed by 904
Abstract
In this paper, we examine an ultra-compact on-chip balanced filter based on novel hybrid resonators (NHRs) comprising short transmission line sections (STLSs) and series LC blocks using low-temperature co-fired ceramic (LTCC) technology. Based on a rigorous theoretical analysis, the proposed NHR demonstrates the [...] Read more.
In this paper, we examine an ultra-compact on-chip balanced filter based on novel hybrid resonators (NHRs) comprising short transmission line sections (STLSs) and series LC blocks using low-temperature co-fired ceramic (LTCC) technology. Based on a rigorous theoretical analysis, the proposed NHR demonstrates the potential for intrinsic ultra-wideband differential-mode (DM) and common-mode (CM) suppression without any additional suppressing structures. Furthermore, the resonance of NHRs was determined by four degrees of freedom, providing flexibility for miniaturization. Theoretical extensions of the Nth-order topology can be easily achieved by the simple coupling schemes that occur exclusively between STLSs. For verification, a balanced filter covering the 5G band n78 with an area of 0.065λg × 0.072λg was designed using the proposed optimization-based design procedure. An ultra-low insertion loss of 0.8 dB was obtained. The quasi-full CM stopband with a 20 dB rejection level ranged from 0 to 12.9 GHz. And the ultra-wide upper DM stopband with a 20 dB rejection level ranged from 4.4 to 11.5 GHz. Good agreement between the theoretical, simulated, and measured results indicate the validity of the proposed design principle. Full article
(This article belongs to the Special Issue Microwave/Millimeter-Wave Integrated Circuits and Systems for Wireless Communication)
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