Advanced RF/Microwave Circuits and System for New Applications

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Circuit and Signal Processing".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 2211

Special Issue Editor

School of Electronic Engineering, Xidian University, Xi'an 710055, China
Interests: RF/microwave circuits and systems; RFID; low profile reflection array and transmission array design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will include papers on the emerging topic of RF/Microwave components, circuits and systems. RF/Microwave components and circuits play a key role in the development of communication systems, radar and IOT devices. With the rapid development of wireless communication technology, various RF and microwave devices and circuits are constantly being produced, also producing new systems and applications. New applications, in turn, have led to the creation of new RF and microwave devices and circuits. The goal of this Special Issue is to provide leading papers in the emerging area of advanced RF/Microwave components, circuits and systems. Topics of interest include, but are not limited to, the following:

  • RF/Microwave passive components;
  • RF/Microwave active device;
  • RF/Microwave antenna and arrays;
  • RF/Microwave wireless communication systems;
  • RF/Microwave radar systems;
  • IOT circuit;
  • RF/Microwave test and measurement;
  • EMC test and measurement;
  • Novel RF/Microwave components;

Dr. Feng Wei
Guest Editor

Technical Program Committee Member:
Name: Dr. Qiwei Li
Email: [email protected]
Affiliation:
1 School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710129, China
2 China Academy of Space Technology (Xi’an), Xi’an 710100, China
Research Interests:  antenna design; microwave circuit design and electromagnetic effects 

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Keywords

  • RF/microwave
  • antenna and arrays
  • wireless communication systems
  • radar
  • IOT
  • EMC test and measurement
  • metamaterial

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Published Papers (2 papers)

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Research

13 pages, 3026 KiB  
Article
A Novel 10-Watt-Level High-Power Microwave Rectifier with an Inverse Class-F Harmonic Network for Microwave Power Transmission
by Jing Peng, Shouhao Wang, Xiaoning Li and Ke Wang
Electronics 2024, 13(18), 3705; https://doi.org/10.3390/electronics13183705 - 18 Sep 2024
Viewed by 519
Abstract
A novel 10-Watt-Level high-power microwave rectifier with an inverse Class-F harmonic network for microwave power transmission (MPT) is presented in this paper. The high-power microwave rectifier circuit comprises four sub-rectifier circuits, a 1 × 4 power divider, and a parallel-series dc synthesis network. [...] Read more.
A novel 10-Watt-Level high-power microwave rectifier with an inverse Class-F harmonic network for microwave power transmission (MPT) is presented in this paper. The high-power microwave rectifier circuit comprises four sub-rectifier circuits, a 1 × 4 power divider, and a parallel-series dc synthesis network. The simple inverse Class-F harmonic control network serves dual roles: harmonic control and impedance matching. The 1 × 4 power divider increases the RF input power fourfold, reaching 40 dBm (10 W). The parallel-series dc synthesis network enhances the resistance to load variation. The high-power rectifier circuit is simulated, fabricated, and measured. The measurement results demonstrate that the rectifier circuit can reach a maximum RF input power of 10 W at 2.45 GHz, with a maximum rectifier efficiency of 61.1% and an output dc voltage of 23.9 V, which has a large application potential in MPT. Full article
(This article belongs to the Special Issue Advanced RF/Microwave Circuits and System for New Applications)
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13 pages, 2372 KiB  
Article
High-Precision Localization of Passive Intermodulation Source in Radio Frequency Transmission Lines Based on Dual-Frequency Signals
by Qi Zhang, Zihan Cheng, Haodong Liang, Jing Yuan, Anhua Dong and Deshuang Zhao
Electronics 2024, 13(5), 928; https://doi.org/10.3390/electronics13050928 - 29 Feb 2024
Viewed by 1043
Abstract
With the development of communication technology, the interference from passive intermodulation to the communication system has become increasingly severe. Locating the source of passive intermodulation and then repairing or replacing the device experiencing passive intermodulation is a reliable method. Therefore, this paper proposes [...] Read more.
With the development of communication technology, the interference from passive intermodulation to the communication system has become increasingly severe. Locating the source of passive intermodulation and then repairing or replacing the device experiencing passive intermodulation is a reliable method. Therefore, this paper proposes a dual-frequency signal localization method based on the principle of phase ranging to accurately locate the passive intermodulation sources in RF cables. This method switches the test signal frequency to obtain the phase of passive intermodulation signals at different frequencies to localize the passive intermodulation source. This paper analyzes the principle of the passive intermodulation localization method based on dual-frequency signals, establishes a localization system for experiments, and finally, analyzes the experimental error to propose an optimization strategy. Through experimental verification, this method can stabilize the positioning error of a passive intermodulation source in a transmission line less than 0.06 m. Meanwhile, this method has high positioning accuracy and the advantages of slight computational complexity, fast positioning speed, and only a small number of requirements on hardware resources. It can work in communication scenarios like satellite and base stations, providing a new technical solution for localizing passive intermodulation interference sources in 5G and 6G communication systems. Full article
(This article belongs to the Special Issue Advanced RF/Microwave Circuits and System for New Applications)
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