Abbas Rezaei
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View article: Novel high-performance microstrip diplexer for 5G mid-band and wide-band applications: Design, analysis and manufacturing
Novel high-performance microstrip diplexer for 5G mid-band and wide-band applications: Design, analysis and manufacturing Open
This paper presents the design and experimental results of a microstrip diplexer with a high performance for 5G applications. The introduced diplexer has compact size, novel structure, low losses, and wide fractional bandwidth. Notably, it…
View article: Low temperature proton irradiation with DEPFETs for Athena's Wide Field Imager
Low temperature proton irradiation with DEPFETs for Athena's Wide Field Imager Open
The Wide Field Imager (WFI), one of two instruments on ESA's next large X-ray mission Athena, is designed for imaging spectroscopy of X-rays in the range of 0.2 to 15 keV with a large field of view and high count rate capability. The focal…
View article: Microstrip Passive Components for Energy Harvesting and 5G Applications
Microstrip Passive Components for Energy Harvesting and 5G Applications Open
This review paper provides a comprehensive overview of microstrip passive components for energy harvesting and 5G applications. The paper covers the structure, fabrication and performance of various microstrip passive components such as fi…
View article: Radiation tests of a CubeSat OBC
Radiation tests of a CubeSat OBC Open
Nano-satellites, which are following the CubeSat standard have established for demanding industrial and scientific applications with critical requirements on reliability and radiation tolerance. The employment of commercial off-the-shelf c…
View article: Design and fabrication of a microstrip triplexer with wide flat channels for multi-band 5G applications
Design and fabrication of a microstrip triplexer with wide flat channels for multi-band 5G applications Open
In this paper, a new microstrip triplexer is designed to work at 2.5 GHz, 4.4 GHz and 6 GHz for mid-band 5G applications. All channels are flat with three low group delays (GDs) of 0.84 ns, 0.75 ns and 0.49 ns, respectively. Compared to th…
View article: Designing process and analysis of a new SOI-MESFET structure with enhanced DC and RF characteristics for high-frequency and high-power applications
Designing process and analysis of a new SOI-MESFET structure with enhanced DC and RF characteristics for high-frequency and high-power applications Open
This research introduces a new designing process and analysis of an innovative Silicon-on-Insulator Metal-Semiconductor Field-Effect (SOI MESFET) structure that demonstrates improved DC and RF characteristics. The design incorporates sever…
View article: Novel Ultra-Compact Wide Stopband Microstrip Lowpass-Bandpass Triplexer for 5G Multi-Service Wireless Networks
Novel Ultra-Compact Wide Stopband Microstrip Lowpass-Bandpass Triplexer for 5G Multi-Service Wireless Networks Open
This work presents a very compact microstrip lowpass-bandpass (LP-BP) triplexer, which is designed and analyzed based on a novel structure. Due to its complex design process, this type of triplexer is rarely designed. Compared to the previ…
View article: A Novel Ultra-Compact Microstrip Coupler With Low Imbalance Magnitudes and Phases for Wireless Networks
A Novel Ultra-Compact Microstrip Coupler With Low Imbalance Magnitudes and Phases for Wireless Networks Open
Based on stub loaded meandrous coupled lines, a novel microstrip coupler is designed,
\nfabricated and measured for wireless applications. It is very compact with high performance. The size of
\nthis coupler is only 0.0028 λg
\n2
\n, where…
View article: A new compact and low phase imbalance microstrip coupler for 5G wireless communication systems
A new compact and low phase imbalance microstrip coupler for 5G wireless communication systems Open
Microstrip couplers play a crucial role in signal processing and transmission in various applications, including RF and wireless communication, radar systems, and satellites. In this work, a novel microstrip 180° coupler is designed, fabri…
View article: A Compact Negative Group Delay Microstrip Diplexer with Low Losses for 5G Applications
A Compact Negative Group Delay Microstrip Diplexer with Low Losses for 5G Applications Open
Microstrip Diplexers play an important role in modern wireless communication systems. In this paper, a novel compact microstrip diplexer based on spiral cells is presented. The proposed resonator primarily consists of two spiral thin lines…
View article: A Balanced Symmetrical Branch-Line Microstrip Coupler for 5G Applications
A Balanced Symmetrical Branch-Line Microstrip Coupler for 5G Applications Open
Symmetry in designing a microstrip coupler is crucial because it ensures balanced power division and minimizes unwanted coupling between the coupled lines. In this paper, a filtering branch-line coupler (BLC) with a simple symmetrical micr…
View article: Contradictory Effect of Lymphocyte Therapy and Prednisolone Therapy on CD3+CD8+CD56+ Natural Killer T Population in Women with Recurrent Spontaneous Abortion
Contradictory Effect of Lymphocyte Therapy and Prednisolone Therapy on CD3+CD8+CD56+ Natural Killer T Population in Women with Recurrent Spontaneous Abortion Open
Background: Natural killer T (NKT) cells are influential immune cells in pregnancy failures, including recurrent spontaneous abortion (RSA). Different approaches are used for these disorders due to their effects on maternal immunomodulatio…
View article: A Super-Efficient GSM Triplexer for 5G-Enabled IoT in Sustainable Smart Grid Edge Computing and the Metaverse
A Super-Efficient GSM Triplexer for 5G-Enabled IoT in Sustainable Smart Grid Edge Computing and the Metaverse Open
Global concerns regarding environmental preservation and energy sustainability have emerged due to the various impacts of constantly increasing energy demands and climate changes. With advancements in smart grid, edge computing, and Metave…
View article: A High-Efficiency Diplexer for Sustainable 5G-Enabled IoT in Metaverse Transportation System and Smart Grids
A High-Efficiency Diplexer for Sustainable 5G-Enabled IoT in Metaverse Transportation System and Smart Grids Open
Symmetry is essential in the design of complex systems like the Metaverse Transportation Sys-tem (MTS) and helps ensure that all components work together effectively. In the development of a microstrip diplexer for 5G-enabled IoT and MTS, …
View article: A Dynamic Recurrent Neural Network for Predicting Higher Heating Value of Biomass
A Dynamic Recurrent Neural Network for Predicting Higher Heating Value of Biomass Open
The higher heating value (HHV) is the main property showing the energy amount of biomass samples. Several linear correlations based on either the proximate or the ultimate analysis have already been proposed for predicting biomass HHV. Sin…
View article: Multiplierless low‐cost implementation of Hindmarsh–Rose neuron model in case of large‐scale realization
Multiplierless low‐cost implementation of Hindmarsh–Rose neuron model in case of large‐scale realization Open
Summary Implementation of neural networks in case of hardware helps us to understand the different parts of the human brain operation, using artificial intelligence (AI). This paper presents a new model of the Hindmarsh–Rose (HR) Neuron th…
View article: A Comprehensive Review on Microstrip Couplers
A Comprehensive Review on Microstrip Couplers Open
In this work, several types of microstrip couplers are investigated in terms of structure, performance and design methods. These planar 4-ports passive devices transmit a signal through two different channels. Designers' competition has al…
View article: Design and Optimization of a Compact Microstrip Filtering Coupler With Low Losses and Improved Group Delay for High-Performance RF Communication Systems
Design and Optimization of a Compact Microstrip Filtering Coupler With Low Losses and Improved Group Delay for High-Performance RF Communication Systems Open
In this paper, a compact filtering coupler is presented using a new microstrip configuration.
\nTo improve the frequency response, achieve good phase balance and reduce the losses of the proposed
\ncoupler, an optimization method is used a…
View article: A High-Performance Microstrip Triplexer With Compact Size, Flat Channels and Low Losses for 5G Applications
A High-Performance Microstrip Triplexer With Compact Size, Flat Channels and Low Losses for 5G Applications Open
A new microstrip triplexer with a compact size of is proposed in this work, where designing a microstrip triplexer with a size less than is a big challenge. In addition to the compact size, it shows a high performance i.e. its channels a…
View article: Anti Leishmanial Effect of Plantago psyllium (ovate) and White Vinegar on Leishmania major Lesion in BALB/c Mice
Anti Leishmanial Effect of Plantago psyllium (ovate) and White Vinegar on Leishmania major Lesion in BALB/c Mice Open
Background: Leishmania major is the etiologic agent of zoonotic cutaneous leishmaniasis in Iran, and glucantime injection is currently used for its treatment. This study aimed to evaluate the anti-leishmanial effect of topical Plantago ps…
View article: A Review on the Structure, Application and Performance of the Passive Microstrip Devices
A Review on the Structure, Application and Performance of the Passive Microstrip Devices Open
Microstrip technology is widely applied for design and implementation of several communication devices such as filters, diplexers, triplexers, multiplexers, couplers, etc. They are utilized to isolate desired signals and remove disturbing …
View article: A New Design Approach for a Compact Microstrip Diplexer with Good Passband Characteristics
A New Design Approach for a Compact Microstrip Diplexer with Good Passband Characteristics Open
This paper presents an efficient theoretical design approach of a very compact microstrip diplexer for modern wireless communication system applications. The proposed basic resonator is made of coupled lines, simple transmission line and a…
View article: The context and basis of Amir Kabir's reforms
The context and basis of Amir Kabir's reforms Open
Among the figures of Iran's contemporary history, Amir Kabir is considered one of the great architects of Iran's reform project, who, by carrying out practical political, economic and social reforms, laid the foundation for modernity in Ir…
View article: Design and Analysis of a Wide Stopband Microstrip Dual-band Bandpass Filter
Design and Analysis of a Wide Stopband Microstrip Dual-band Bandpass Filter Open
A novel configuration of a dual-band bandpass filter (BPF) working as a harmonic attenuator is introduced and fabricated. The proposed filter operates at 3 GHz, for UHF and SHF applications, and 6.3 GHz, for wireless applications. The pres…
View article: Spermatozoa Induce Maternal Mononuclear Cells for Production of Antibody with Cytotoxic Activity on Paternal Blood Mononuclear Cells.
Spermatozoa Induce Maternal Mononuclear Cells for Production of Antibody with Cytotoxic Activity on Paternal Blood Mononuclear Cells. Open
Based on the results of this study it can be concluded that APCA may be a natural anti-sperm antibody (ASA), which can be produced during exposure to spermatozoa and may have some influence before pregnancy. Further research is required to…
View article: Design and Fabrication of a Novel Ultra Compact Microstrip Diplexer Using Interdigital and Spiral Cells
Design and Fabrication of a Novel Ultra Compact Microstrip Diplexer Using Interdigital and Spiral Cells Open
A dual-band bandpass-bandpass microstrip diplexer with very small size and good performance is designed in this work. The proposed diplexer has a novel structure which is introduced for the first time in this paper. In comparison with the …
View article: Phycocyanin C a Natural Product with Impressive Therapeutic Efficacy for Inhibition of Breast Tumors’ Growth and Metastasis in Vivo
Phycocyanin C a Natural Product with Impressive Therapeutic Efficacy for Inhibition of Breast Tumors’ Growth and Metastasis in Vivo Open
Background: Several studies have reported the anticancer effect of phycocyanin C, a natural extract isolated from the algae Arthrospira platensis. However, its therapeutic effects on the growth of breast cancer and its metastasis have not …
View article: An Area-efficient Microstrip Diplexer with a Novel Structure and Low Group Delay for Microwave Wireless Applications
An Area-efficient Microstrip Diplexer with a Novel Structure and Low Group Delay for Microwave Wireless Applications Open
In this work, a novel structure of a microstrip diplexer consisting of coupled patch cells is presented. It works at 2.5 GHz and 4.7 GHz for wireless applications. The proposed structure is well miniaturized with a compact area of 0.015 λg…
View article: Compact wide stopband microstrip diplexer with flat channels for WiMAX and wireless applications
Compact wide stopband microstrip diplexer with flat channels for WiMAX and wireless applications Open
This study presents a compact wide stopband microstrip diplexer which is designed based on a novel resonator structure. This novel resonator consists of a main hairpin cell loaded by a smaller hairpin and T‐shaped cells. The presented dipl…