Chiraz Ben Nsir, J. Ribero, C. Boussetta, A. Gharsallah
{"title":"A Wide Band Transparent Koch Snowflake Fractal Antenna Design for Telecommunication Applications","authors":"Chiraz Ben Nsir, J. Ribero, C. Boussetta, A. Gharsallah","doi":"10.1109/MMS48040.2019.9157327","DOIUrl":"https://doi.org/10.1109/MMS48040.2019.9157327","url":null,"abstract":"This paper presents the design and analysis of Koch fractal antenna with transparent substrate for telecommunication systems. This wide band antenna is capable to cover GSM900 (890–960 MHz), GSM1800 (1710-1880 MHz), GSM1900 (1850–1990 MHz), UMTS (1920–2170 MHz), WLAN (2400–2480 MHz) and LTE (2.6-2.7 GHz) bands with VSWR < 2 over the entire frequency range. The antenna consists of a Koch fractal antenna developed according to the second iteration of the Koch snowflake fractal structure with slot inside. The antenna is fed by coplanar wave guide (CPW) using the concept of modified ground structure. The proposed antenna is designed on a transparent substrate with a dielectric constant of 4.6 and a size of 60 ⨯ 70 ⨯ 3 mm3. The radiating element and ground plane are both designed using AgHT-4, while the substrate is made of glass. The gain of the proposed antenna is 1.69dB, 2.92dB at 1.9 GHz and 2.4 GHz respectively, which correspond to the needs of our application. The analysis of antenna is performed using HFSS software.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115174004","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}
{"title":"A Simple and Compact CPW-Fed UWB Antenna with WLAN Band Rejection","authors":"R. Aldhaheri, I. S. Alruhaili","doi":"10.1109/mms48040.2019.9157273","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157273","url":null,"abstract":"A new and simple ultra wide band (UWB) antenna fed by a coplanar waveguide (CPW) with notched bands at 5.8 GHz is presented in this paper. The physical dimension of this antenna is 17.5 ⨯ 17.5 mm2 which is considered as one of the smallest UWB antennas with band notched characteristics in the literature. The notched frequency band is created by cutting an elliptical slot of radii $a$ and $b$ and inserting a resonator stub in the radiating patch. The lengths of these radii and stub are used to adjust the centre notched frequency and the rejection band. The fabricated antenna has a broad bandwidth ranging from 3 to 15.2 GHz (based on return loss < −10 dB) with controllable notched band for WLAN applications. The experimental radiation patters are nearly omnidirectional and stable over the entire operating bandwidth in the H-plane and nearly bidirectional with two nulls in the E-plane. The very compact size and the good electromagnetic property of this proposed antenna makes it a good candidate to be integrated into portable devices for UWB systems.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125205745","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}
{"title":"Design and Topology Considerations for a Family of X-Band GaN Power Amplifier MMICs","authors":"Ulas Ozipek, Armagan Gurdal, Batuhan Sutbas, Büşra Çankaya Akoğlu, E. Ozbay","doi":"10.1109/mms48040.2019.9157315","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157315","url":null,"abstract":"Transistor selection and power drive ratio considerations are critical in high power amplifier design. This work reports four high power amplifier MMICs operating at X-band, discusses two-stage and three-stage design approaches for various output power and efficiency goals while investigating the trade-off between them. All of the four MMICs are fabricated using NANOTAM's 0.25 μm GaN on SiC technology and measured on-wafer. Experimental results show that the first pair of power amplifiers with drive ratios of 1:4 achieve an output power of 13.2-16 W with power-added efficiency between 36.6-46.8%, while the second group of power amplifiers which have more conservative drive ratios of 2:4 are capable of higher output power between 14-18.1 W with lower power-added efficiency of 32.5-38.2 %, all recorded at 6 dB gain compression.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123358549","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}
{"title":"A Highly Survivable C-band GaN HEMT LNA with Resistive Feedback Technique","authors":"A. M. E. Abounemra, M. Helaoui, F. Ghannouchi","doi":"10.1109/mms48040.2019.9157323","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157323","url":null,"abstract":"This paper presents a C-band monolithic microwave integrated circuit (MMIC) low noise amplifiers (LNA) designed utilizing 0.25 um AlGaN/GaN HEMT technology. The single-stage amplifier is designed based on Common-Source topology with series inductive source and R-C feedback network. The post-layout simulation results demonstrate that the noise figure is around 1.4 dB at the operating frequency 5.4 GHz dB and better than 2 dB across frequency band from 4.6 to 6.6 GHz. The saturated output power of this LNA 28 dBm with higher efficiency around 40 %. The LNA has an output P1 dB and OIP3 of 22 dBm and 35 dBm, respectively, which illustrated high linear performance and can survive with high input power overdrive up to 28-dBm CW input power. The full chip size is 1.5 mm ⨯ 1.7 mm.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115967315","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}
{"title":"Resolution of 2D Scattering Problem Using Method of Moment and RWG Functions","authors":"A. Khaled, D. Omri, T. Aguili","doi":"10.1109/mms48040.2019.9157261","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157261","url":null,"abstract":"This paper presents a novel algorithm for analyzing transient radiation from an arbitrary shape illuminated by an incident electromagnetic wave. The algorithm is based on spatiotemporal Integral Equation (Electric Field Integral Equation) to predict the transient response of the antenna. The Laguerre functions are used as temporal basis. In order to simplify the space modeling, we reformulate the space basis RWG. This basis is expressed in polar coordinate that defines by pairs of adjacent triangular. The later presents the analyzed sub-domain characterized by their triangle's centroid. Numerical results that validate and demonstrate the efficacy of the proposed algorithm are presented.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134429589","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}
{"title":"A millimeter-wave textile antenna loaded with EBG structures for 5G and IoT applications","authors":"Wissem El May, I. Sfar, J. Ribero, L. Osman","doi":"10.1109/mms48040.2019.9157278","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157278","url":null,"abstract":"This paper describes the antenna performances made from common clothing fabrics for 5G and Internet of Things (IoT) applications by employing electromagnetic bandgap (EBG) structures as the substrate of the antenna for gain enhancement in millimeter-wave frequency. A suspended transmission line method has been taken into account for the characterization of the EBG structure to obtain the optimum design. Furthermore, the optimum unit cell, which is loaded onto the antenna, is easy to implement and allows obtaining a Peak Gain of 9.79 dBi in 26 GHz band.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132977552","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}
Büşra Çankaya Akoğlu, Batuhan Sutbas, O. Cengiz, E. Ozbay
{"title":"GaN based Driver and Power Amplifier MMICs for X-Band Transceiver Modules","authors":"Büşra Çankaya Akoğlu, Batuhan Sutbas, O. Cengiz, E. Ozbay","doi":"10.1109/mms48040.2019.9157248","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157248","url":null,"abstract":"This work presents the design and implementation of two power amplifiers along with a driver amplifier based on our in-house microstrip 0.25 μm GaN on SiC technology. Details of the fabrication technology, typical transistor performance, MMIC design procedure, and measurement results of the fabricated chips are provided. The presented amplifier chain is planned to be used in an X-band transceiver module. The compact size driver amplifier demonstrates at least 25 dB gain and has a minimum of 23 dBm output power at 1 dB gain compression, which is sufficient to drive the power amplifier MMICs comfortably. For the power amplifiers, two design approaches are taken. The first design provides a maximum output power of 20 W with 27 dB power gain at the center frequency of 10 GHz, while the second one is optimized for flatter small-signal and large-signal responses. The second power amplifier achieves at least 17.6 W across the desired band with a minimum of 33% power-added efficiency and also provides 35.2 dB small-signal gain with a considerably low gain ripple of 0.8 dB. The complete amplifier chain is expected to demonstrate a high gain and high output power density with low ripple at 85°C operating temperature.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114434531","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}
Ines Bouzayene, K. Mabrouk, A. Gharsallah, D. Kholodnyak
{"title":"Scan Radar Using an Uniform Rectangular Array for Drone Detection with Low RCS","authors":"Ines Bouzayene, K. Mabrouk, A. Gharsallah, D. Kholodnyak","doi":"10.1109/MMS48040.2019.9157299","DOIUrl":"https://doi.org/10.1109/MMS48040.2019.9157299","url":null,"abstract":"Drones are becoming more and more available to the general public for leisure activities and exploited in commercial applications, this boom in drone use has contributed to the emergence of new threats in security applications. Because of their great agility and small size, UAV can be used for numerous missions and are very challenging to detect. Radar technology with its all-weather capability can play an important role in detecting UAV-based threats and in protecting critical assets, but standard radar is ill-prepared for UAV detection: UAVs are low-velocity aircraft with a very weak radar. A radar simulation is discussed and preliminary results are presented. In general, an X-band radar with electronic scanning capability can contribute to a reliable and affordable solution for detecting UAV threats. Radar could be the technology of choice for detecting the drone, signature.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115067647","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}
{"title":"Dual Band Metamaterial Inverted-L Antenna","authors":"N. Dakhli, F. Choubani","doi":"10.1109/mms48040.2019.9157252","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157252","url":null,"abstract":"A coplanar waveguide (CPW) planar inverted-L antenna (PILA) is proposed. It uses a Composite Right/Left Handed (CRLH) transmisssion line metamaterial loading in order to achieve a dual band operation. It is shown that this unit cell produces a new resonant mode at 1.8 GHz plus the folded monopole mode at 3.5 GHz. The associated −10 dB bandwidth fractions around each of these frequencies are 9.2% and 22.9%, while the corresponding peak gains and radiation efficiencies are −2.6 dBi (51.64%) and 2.59 dBi (93.8%), respectively. The radiator has a total size of $55times 54.5times 1.6 text{mm}^{3}$ or $0.33lambdatimes 0.32lambdatimes 0.009lambda$ at 1.8 GHz.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117067050","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}
{"title":"On Evaluating Energy Efficient Algorithms for Internet of Things Networks","authors":"Sirine Rabah, A. Zaier, H. Dahman","doi":"10.1109/mms48040.2019.9157300","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157300","url":null,"abstract":"Internet of Things (IoT) is a new paradigm pulling great interest in the modern wireless Communications domain. However, in some scenarios, the performance of IoT network is limited by energy constrained devices. For improve the energy efficiency of IoT network, researchers have suggested different approaches based on clustering, where the cluster heads (CHs) selection has significant effect on the network performance. In this paper, we review and compare different energy-efficient clustering protocols for IoT network, i.e Low-Energy Adaptive Clustering Hierarchy $(LEACH)$, Particle Swarm Optimization $(PSO)$ and Genetic Algorithms $(GA)$. Besides we investigate the extent of their effectiveness to prolong network lifetime. The results obtained from the implementation in MATLAB show that GA performs better than PSO and LEACH in improving energy consumption and also increasing the number of live nodes within different rounds.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128736118","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}