Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825542
M. Lucido, Rita Massa, G. Panariello, F. Schettino
A full wave method developed for the analysis of lossy dielectric disks is applied to the evaluation of the field induced in a Petri dish exposed in a reverberation chamber. The rich scattering environment can be modeled by means of a plane wave expansion, which is usually approximated taking into account only a few waves. The proposed method allows to assess the accuracy achieved for any given number of considered plane waves.
{"title":"Full-wave Validation of Plane Waves Model for Numerical Dosimetry in Reverberation Chambers","authors":"M. Lucido, Rita Massa, G. Panariello, F. Schettino","doi":"10.1109/mms55062.2022.9825542","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825542","url":null,"abstract":"A full wave method developed for the analysis of lossy dielectric disks is applied to the evaluation of the field induced in a Petri dish exposed in a reverberation chamber. The rich scattering environment can be modeled by means of a plane wave expansion, which is usually approximated taking into account only a few waves. The proposed method allows to assess the accuracy achieved for any given number of considered plane waves.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122308392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825507
Shiyi Yang, F. Mesa, O. Zetterstrom, S. Clendinning, O. Quevedo–Teruel
This paper discusses the dispersion diagrams of holey periodic metasurfaces, which have been computed by analyzing either the primitive unit cell or a supercell of the structure. Particularly, the connection of the dispersion diagram of the supercell to the standard diagram of the primitive unit cell is investigated. The appearance of additional “anomalous” modes is explained and exemplified in the case of a rectangular supercell composed of two or three square unit cells.
{"title":"Understanding the Dispersion Diagrams of Two-Dimensional Supercells","authors":"Shiyi Yang, F. Mesa, O. Zetterstrom, S. Clendinning, O. Quevedo–Teruel","doi":"10.1109/mms55062.2022.9825507","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825507","url":null,"abstract":"This paper discusses the dispersion diagrams of holey periodic metasurfaces, which have been computed by analyzing either the primitive unit cell or a supercell of the structure. Particularly, the connection of the dispersion diagram of the supercell to the standard diagram of the primitive unit cell is investigated. The appearance of additional “anomalous” modes is explained and exemplified in the case of a rectangular supercell composed of two or three square unit cells.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126280956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825519
S. Kılınç, Malik Ehsan Ejaz, S. Yarman, S. Ozoguz, S. Srivastava, Edmond Nurellari
In this paper, a novel “Real Frequency Line Segment Technique” based numerical procedure is introduced to assess the gain-bandwidth limitations of the given source and load impedances, which in turn results in the ultimate RF-power intake/delivering performance of the amplifier. During the numerical performance assessments process, a robust tool called “Virtual Gain Optimization” is presented. Finally, a new definition called “Power-Performance-Product” is introduced to measure the quality of an active device. Examples are presented to assess the gain-bandwidth limitations of the given source and load pull impedances for the 45W-GaN power transistor of Wolfspeed “CG2H40045” over 0.8-3.8 GHz bandwidth.
{"title":"A Numerical Procedure to Determine the Power Intake/Delivery Capacity of a GaN RF Power Transistor over Broadband","authors":"S. Kılınç, Malik Ehsan Ejaz, S. Yarman, S. Ozoguz, S. Srivastava, Edmond Nurellari","doi":"10.1109/mms55062.2022.9825519","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825519","url":null,"abstract":"In this paper, a novel “Real Frequency Line Segment Technique” based numerical procedure is introduced to assess the gain-bandwidth limitations of the given source and load impedances, which in turn results in the ultimate RF-power intake/delivering performance of the amplifier. During the numerical performance assessments process, a robust tool called “Virtual Gain Optimization” is presented. Finally, a new definition called “Power-Performance-Product” is introduced to measure the quality of an active device. Examples are presented to assess the gain-bandwidth limitations of the given source and load pull impedances for the 45W-GaN power transistor of Wolfspeed “CG2H40045” over 0.8-3.8 GHz bandwidth.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121394868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825618
Malik Ehsan Ejaz, S. Kılınç, S. Yarman, S. Ozoguz, S. Srivastava, Edmond Nurellari
In this paper, Carlin's Real Frequency Line segment technique (RF -LST) is generalized to cover both single and double matching problems. The new method is called the “Unified Real Frequency-Line Segment Solutions to Broadband Matching Problems (U-RFT)”. U-RFT is an excellent numerical tool to assess the gain-bandwidth limitation for the given complex terminations of the matching problem. An example is presented to exhibit the utilization of the newly proposed U-RFT method to design a two-stage power amplifier using the Wolfspeed GaN transistors of CMPA0530002S and CG2H40035 which yields 35 Watts output power with 78% efficiency.
{"title":"A Unified Real Frequency Technique for the Solution to Broadband Matching Problems","authors":"Malik Ehsan Ejaz, S. Kılınç, S. Yarman, S. Ozoguz, S. Srivastava, Edmond Nurellari","doi":"10.1109/mms55062.2022.9825618","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825618","url":null,"abstract":"In this paper, Carlin's Real Frequency Line segment technique (RF -LST) is generalized to cover both single and double matching problems. The new method is called the “Unified Real Frequency-Line Segment Solutions to Broadband Matching Problems (U-RFT)”. U-RFT is an excellent numerical tool to assess the gain-bandwidth limitation for the given complex terminations of the matching problem. An example is presented to exhibit the utilization of the newly proposed U-RFT method to design a two-stage power amplifier using the Wolfspeed GaN transistors of CMPA0530002S and CG2H40035 which yields 35 Watts output power with 78% efficiency.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115519210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825549
G. Amendola, L. Boccia, F. Centurelli, W. Ciccognani, E. Limiti, C. Mustacchio, P. Tommasino, A. Trifiletti
Design and characterization of both a single-stage and a 2-stage Variable Gain Amplifier operating at E- Band is presented. Characterization issues of differential RF amplifiers are discussed, and integrated input and output baluns seem to be an easy solution for on-chip or on-board preliminary characterization by standard 2-port Network Analyzer. Amplifiers have been prototyped in a SiGe BiCMOS commercial technology, and exhibit about 22 dB of gain control range. After balun de-embedding, more than 10 dB of maximum gain has been also demonstrated for both amplifiers.
{"title":"Characterization-oriented design of E-band Variable-Gain Amplifiers in BiCMOS technology","authors":"G. Amendola, L. Boccia, F. Centurelli, W. Ciccognani, E. Limiti, C. Mustacchio, P. Tommasino, A. Trifiletti","doi":"10.1109/mms55062.2022.9825549","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825549","url":null,"abstract":"Design and characterization of both a single-stage and a 2-stage Variable Gain Amplifier operating at E- Band is presented. Characterization issues of differential RF amplifiers are discussed, and integrated input and output baluns seem to be an easy solution for on-chip or on-board preliminary characterization by standard 2-port Network Analyzer. Amplifiers have been prototyped in a SiGe BiCMOS commercial technology, and exhibit about 22 dB of gain control range. After balun de-embedding, more than 10 dB of maximum gain has been also demonstrated for both amplifiers.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115756537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825504
D. Assante, G. Panariello, F. Schettino, L. Verolino
In this work the wakefield of a charged particle traveling through a plane conducting ring is evaluated. The problem is formulated in the spectral domain as integral equations of Fredholm type, solved by Galerkin method employing entire domain functions factorizing the correct edge behavior of the unknown induced current. As a result, high accuracy and numerical stability are achieved, allowing the calculation of parameters relevant to accelerator physics, such as longitudinal impedance and wakefield.
{"title":"Analytically Regularized Evaluation of the Wakefield of a Particle Travelling through a Plane Conducting Ring","authors":"D. Assante, G. Panariello, F. Schettino, L. Verolino","doi":"10.1109/mms55062.2022.9825504","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825504","url":null,"abstract":"In this work the wakefield of a charged particle traveling through a plane conducting ring is evaluated. The problem is formulated in the spectral domain as integral equations of Fredholm type, solved by Galerkin method employing entire domain functions factorizing the correct edge behavior of the unknown induced current. As a result, high accuracy and numerical stability are achieved, allowing the calculation of parameters relevant to accelerator physics, such as longitudinal impedance and wakefield.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132617954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825585
G. Gugliandolo, Z. Marinković, G. Campobello, G. Crupi, N. Donato
This work focuses on a comparative study between the artificial neural networks (ANNs) and the Lorentzian fitting method, which are applied for modeling of the resonant characteristics of a humidity sensor. The device under test (DUT) is a microwave microstrip resonator, developed on FR4 substrate, with a Ag@a-Fe2O3 nanostructured layer deposited on the gap, aimed at humidity sensing applications. To determine the frequency-dependent behavior of the tested device, the reflection coefficient (Γ) is measured from 3.4 GHz up to 5.6 GHz. It is achieved that each analyzed approach has pros and cons, depending on the given application requirements.
{"title":"Microwave Resonator for Humidity Detection Applications: A Comparative Analysis between ANNs and Lorentzian Fitting Method","authors":"G. Gugliandolo, Z. Marinković, G. Campobello, G. Crupi, N. Donato","doi":"10.1109/mms55062.2022.9825585","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825585","url":null,"abstract":"This work focuses on a comparative study between the artificial neural networks (ANNs) and the Lorentzian fitting method, which are applied for modeling of the resonant characteristics of a humidity sensor. The device under test (DUT) is a microwave microstrip resonator, developed on FR4 substrate, with a Ag@a-Fe2O3 nanostructured layer deposited on the gap, aimed at humidity sensing applications. To determine the frequency-dependent behavior of the tested device, the reflection coefficient (Γ) is measured from 3.4 GHz up to 5.6 GHz. It is achieved that each analyzed approach has pros and cons, depending on the given application requirements.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125332714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825541
Adel Kouki, Fakher Sboui, L. Latrach
This paper presents a novel reconfigurable MIMO 4×1 microstrip patch antenna loaded with a mixture liquid crystal E7 resonating at 60 GHz for 5G and WiGig applications. The single proposed antenna is a rectangular patch antenna with a total grounded substrate fed with microstrip line. The mixture liquid crystal (E7) is injected in an optimal location underneath the patch and around it. Using the MIMO technology, the gain increases from 7.13 dB for the single antenna to 13.5 dB. Modifying the permittivity of the mixture liquid crystal (E7) allows the adjusting of the resonate frequency. The simulated results of the reflection coefficient show that the resonance frequency tuned from 62.28 to 69.14 GHz, therefore the variation frequency ΔFr= 6.86 GHz characterized with a suitable gain reaches a value of 13.5 dB. The liquid crystal ameliorates performances of the proposed antenna and offers tunability.
{"title":"A new tunable frequency 4xl MIMO antennas loaded with liquid crystal dedicated for 5G and WiGig applications","authors":"Adel Kouki, Fakher Sboui, L. Latrach","doi":"10.1109/mms55062.2022.9825541","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825541","url":null,"abstract":"This paper presents a novel reconfigurable MIMO 4×1 microstrip patch antenna loaded with a mixture liquid crystal E7 resonating at 60 GHz for 5G and WiGig applications. The single proposed antenna is a rectangular patch antenna with a total grounded substrate fed with microstrip line. The mixture liquid crystal (E7) is injected in an optimal location underneath the patch and around it. Using the MIMO technology, the gain increases from 7.13 dB for the single antenna to 13.5 dB. Modifying the permittivity of the mixture liquid crystal (E7) allows the adjusting of the resonate frequency. The simulated results of the reflection coefficient show that the resonance frequency tuned from 62.28 to 69.14 GHz, therefore the variation frequency ΔFr= 6.86 GHz characterized with a suitable gain reaches a value of 13.5 dB. The liquid crystal ameliorates performances of the proposed antenna and offers tunability.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114593088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825571
J. M. Purushothama, Yuan Ding, G. Goussetis, Jeremy Brookes
In this article, we present the proof of concept of techniques exploring ambient signals for low power and secure backscatter communications. This real-time system operates by scavenging a crowded electromagnetic spectrum and recycling active incoming signals for secure quasi-passive wireless communications. This is achieved through a low power and efficient spectrum sensing approach to identify prominent communication channels and using this energy and spectrum, to backscatter a superimposed frequency shifted signal for secure communication, utilizing a semi-passive adaptive modulation approach. No new spectral energy is added to the system in this approach, demonstrating a net zero spectral crowding or a quasi-passive opportunistic communication.
{"title":"Low Power Secure Backscatter Communication Techniques Exploring Ambient Signals","authors":"J. M. Purushothama, Yuan Ding, G. Goussetis, Jeremy Brookes","doi":"10.1109/mms55062.2022.9825571","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825571","url":null,"abstract":"In this article, we present the proof of concept of techniques exploring ambient signals for low power and secure backscatter communications. This real-time system operates by scavenging a crowded electromagnetic spectrum and recycling active incoming signals for secure quasi-passive wireless communications. This is achieved through a low power and efficient spectrum sensing approach to identify prominent communication channels and using this energy and spectrum, to backscatter a superimposed frequency shifted signal for secure communication, utilizing a semi-passive adaptive modulation approach. No new spectral energy is added to the system in this approach, demonstrating a net zero spectral crowding or a quasi-passive opportunistic communication.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116903781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-09DOI: 10.1109/mms55062.2022.9825497
C. Mustacchio, T. Chaloun, Michael Fischer, E. Arnieri, G. Amendola, L. Boccia
Preliminary results on a compact duplexer design for K/Ka-Band for Satcom on the move user terminals are presented. The proposed duplexer is embedded into a package stack-up composed by five dielectric core layers and ten metal layers and it will be integrated with RF chips and antenna element to form an Antenna Front End (AFE). The duplexer functionality is that to split the TX and RX signals, making the antenna using two different paths for transmitting and receiving purpose. The target frequencies are 19.2-21.2 GHz for RX bandwidth and 28–31 GHz for TX bandwidth. The duplexer has been designed using two elliptic bandpass filters, one for TX and one for RX bandwidths. The duplexer is very compact, as its size is only 2.85 mm x 2.8 mm. The simulated Reflection losses are less than 10 dB results, from 19.2 GHz to 20.4 GHz, in RX bandwidth, and from 28.2 GHz to 30.5 GHz in TX bandwidth. The Insertion losses level is approximately 1.5 dB within the bands of interest. The rejection level is approximately −38 dB in RX bandwidth. From these preliminary results, it is possible to state that the proposed duplexer can be very suitable for Satcom systems in K/Ka-band, as its compactness will provide easy feasibility for the integration of the duplexer, with the RF chips and the antenna elements in an Antenna Front End.
{"title":"Preliminary Results on a Compact Duplexer Design for K/Ka-Band SatCom on the Move User Terminals","authors":"C. Mustacchio, T. Chaloun, Michael Fischer, E. Arnieri, G. Amendola, L. Boccia","doi":"10.1109/mms55062.2022.9825497","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825497","url":null,"abstract":"Preliminary results on a compact duplexer design for K/Ka-Band for Satcom on the move user terminals are presented. The proposed duplexer is embedded into a package stack-up composed by five dielectric core layers and ten metal layers and it will be integrated with RF chips and antenna element to form an Antenna Front End (AFE). The duplexer functionality is that to split the TX and RX signals, making the antenna using two different paths for transmitting and receiving purpose. The target frequencies are 19.2-21.2 GHz for RX bandwidth and 28–31 GHz for TX bandwidth. The duplexer has been designed using two elliptic bandpass filters, one for TX and one for RX bandwidths. The duplexer is very compact, as its size is only 2.85 mm x 2.8 mm. The simulated Reflection losses are less than 10 dB results, from 19.2 GHz to 20.4 GHz, in RX bandwidth, and from 28.2 GHz to 30.5 GHz in TX bandwidth. The Insertion losses level is approximately 1.5 dB within the bands of interest. The rejection level is approximately −38 dB in RX bandwidth. From these preliminary results, it is possible to state that the proposed duplexer can be very suitable for Satcom systems in K/Ka-band, as its compactness will provide easy feasibility for the integration of the duplexer, with the RF chips and the antenna elements in an Antenna Front End.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115076770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：