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Electronics
Special Issues
RF/Microwave Circuit Design and Its Application
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RF/Microwave Circuit Design and Its Application

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

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1312

Special Issue Editors

Dr. Zhiqiang Gao

E-Mail Website
Guest Editor
School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
Interests: RF/microwave integrated circuits; analog integrated circuits; interface circuits of sensors
Dr. Zhao Zhang

E-Mail Website
Guest Editor
The State-Key Lab. of Superlattices and Microstructures, Institute of Semiconductors, Beijing 100083, China
Interests: RF/microwave integrated circuits; high-speed communication circuits; PLL

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the design, development, and application of electronic circuits with respect to RF/microwave circuits and their applications. The aim is to create high-performance circuits that can meet the needs of high-frequency and high-speed circuits and their applications.

This Special Issue highlights the latest advances and trends in RF/microwave integrated circuit design and its applications, including but not limited to:

  • Specific circuit designs, such as low-noise amplifiers, filters, oscillators, antennas, etc.
  • Applications in telecommunications, radar, interface circuits of sensors, or RF/microwave devices.
  • Analog integrated circuit design and its application.

Dr. Zhiqiang Gao
Dr. Zhao Zhang
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

  • RF/microwave circuits
  • wireless communications
  • low-noise amplifiers
  • filters, oscillators
  • antennas
  • PLL, clock circuits

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

Published Papers (1 paper)

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Review

22 pages, 4949 KiB  
Review
Design Strategies of Integrated Metal-Oxide Semiconductor-Based Resistive Sensor Systems for Ammonia Detection
by Yingzhan Yan, Jing Xu, Zhilong Peng, Zhe Ji, Yuan Gao, Lu Jia and Qian Xu
Electronics 2024, 13(23), 4800; https://doi.org/10.3390/electronics13234800 - 5 Dec 2024
Cited by 1 | Viewed by 983
Abstract
Chemical production activities cause large amounts of ammonia to evaporate into the atmosphere, degrading air quality and even endangering public health, so monitoring ammonia in real time is significant. Traditional detection techniques, including spectrometers, chromatography, and pumping methods, are characterized by high costs, [...] Read more.
Chemical production activities cause large amounts of ammonia to evaporate into the atmosphere, degrading air quality and even endangering public health, so monitoring ammonia in real time is significant. Traditional detection techniques, including spectrometers, chromatography, and pumping methods, are characterized by high costs, complex operation, significant delays, and limited compatibility, which obstructs the immediate identification of ammonia and the timely provision of information. Due to their distinct benefits such as compact size, affordability, quick response time, and lack of need for manual operation, resistive ammonia sensors hold significant promise for the real-time tracking of ammonia emissions in chemical manufacturing processes. In recent years, sensors utilizing metal-oxide semiconductor (MOS) nanomaterials have become a popular area of research due to their high sensitivity, strong stability, and acceptable response and recovery times. However, the interface circuits of existing MOS gas sensors mainly focus on sensor configuration and data acquisition. These interface circuits lack the functions of array timing control and data processing; gas detection and identification cannot be realized directly by them, which reduces the system integration and increases the application complexity. This paper begins by examining key design strategies for MOS-based resistive sensors aimed at enhancing ammonia sensing capabilities, offering researchers a foundation for their work in creating high-performance ammonia sensors. Based on this, a complete measuring system and a programmable interface circuit for an MOS gas sensor are introduced, which can integrate sensor configuration, signal acquisition, data processing, and output of recognition results. Finally, the current challenges and future opportunities of MOS-based resistive ammonia sensor systems are presented. The purpose of this review is to offer researchers suggestions for creating high-performance MOS-based resistive ammonia sensor systems and to promote the use of these sensors in upcoming chemical manufacturing processes. Full article
(This article belongs to the Special Issue RF/Microwave Circuit Design and Its Application)
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