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Coupling element based mobile terminal antenna structures

Juha Villanen, Jani Ollikainen, Outi Kivekas, Pertti Vainikainen
2006 IEEE Transactions on Antennas and Propagation  
Essentially nonresonant coupling elements are used to optimally couple to the dominating characteristic wavemodes of the chassis. The antenna structures are tuned to resonance with matching circuits.  ...  The presented analysis provides useful and novel information for the designs of the future low-profile and low-volume mobile terminal antennas.  ...  or cognitive radios [44] .  ... 
doi:10.1109/tap.2006.877162 fatcat:md7n24uycrdppmpmviw66k6zgi

Integrated Passives for High-Frequency Applications [chapter]

Xiaoyu Mi, Satoshi Ue
2010 Advanced Microwave Circuits and Systems  
Moreover, tunable capabilities are strongly expected to offer more flexible radio front-ends for future software-defined-radio or cognitive radio systems.  ...  Design Consideration for High Q, High SRF (Self-Resonant Frequency) Inductors are one of the most important passive components in RF circuits.  ...  Advanced Microwave Circuits and Systems This book is based on recent research work conducted by the authors dealing with the design and development of active and passive microwave components, integrated  ... 
doi:10.5772/8418 fatcat:sqizvej5iva7zkitesm6draoum

Design and Characterization of Novel Paper-based Inkjet-Printed RFID and Microwave Structures for Telecommunication and Sensing Applications

Li Yang, Manos M. Tentzeris
2007 IEEE MTT-S International Microwave Symposium Digest  
In this paper, inkjet-printed microwave circuits fabricated on paper-based substrates were investigated, as a system-level solution for ultra-low-cost mass production.  ...  These results show that the paper material can serve for the purpose of economical multilayer structures for telecommunication and sensing applications.  ...  Therefore, inductively coupled feeding structures present one of the theoretically optimum solutions to effectively match an antenna to arbitrary IC impedances without the need of large matching circuits  ... 
doi:10.1109/mwsym.2007.380000 fatcat:z53oi5qtvfezrk3wzpdlc4wjji

Packaging and Antenna Integration for Silicon-Based Millimeter-Wave Phased Arrays: 5G and Beyond

Xiaoxiong Gu, Duixian Liu, Bodhisatwa Sadhu
2021 IEEE Journal of Microwaves  
Implementations of state-of-the-art silicon-based phased arrays below 100 GHz are discussed, with emphasis on array architectures for scaling, antenna integration options, substrate materials and process  ...  INDEX TERMS 5G, cellular communication, mobile communication, antenna arrays, electronic packaging, thermal management, flip-chip devices, integrated circuit interconnections, integrated circuit packaging  ...  ACKNOWLEDGMENT The authors would like to thank Alberto Valdes-Garcia and Daniel Friedman for technical discussion and management support.  ... 
doi:10.1109/jmw.2020.3032891 fatcat:rqwr4cm5q5cazmswucwltomkxe

Heterogeneous Wafer-Scale Circuit Architectures

Linda Katehi, William Chappell, Saeed Mohammadi, Alexandros Margomenos, Michael Steer
2007 IEEE Microwave Magazine  
Further, it demonstrates the potential of many novel circuit technologies to provide the functionality and density needed in systems such as cognitive radio, next-generation sensors, etc.  ...  mask set needed for the CMOS/SiGe components, greatly reducing circuit design cycle and cost.  ... 
doi:10.1109/mmw.2007.316255 fatcat:pdj4kurt6bcbvmhrebzzujwzrm

Measurements of conductivity of thin gold films at microwave frequencies employing resonant techniques

Tomasz Zychowicz, Jerzy Krupka, Janina Mazierska
2006 2006 Asia-Pacific Microwave Conference  
Classes of the components discussed are antennas, passive devices, active and nonlinear circuits, and two-dimensional beam optics structures.  ...  Shramkova, The National Academy of Sciences of Ukraine, UKRAINE WE4E-3 Advanced 3D LTCC Passive Components Using Cavity Structures for 60GHz Gigabit Wireless Systems J.-H. Lee, N. Kidera*, A.  ... 
doi:10.1109/apmc.2006.4429490 fatcat:kxp3rkt2vzdcdplvosigzruneq

A Reconfigurable Filter Using Defected Ground Structure for Wideband Common-Mode Suppression

Zhibin Zeng, Shengjian Jammy Chen, Christophe Fumeaux
2019 IEEE Access  
A wideband common-mode (CM) suppression reconfigurable filter is proposed for high-speed all-pass differential circuits.  ...  The three DGS cells with a total area of 15 mm x 10 mm are implemented symmetrically under the differential lines, to obtain reconfigurable CM bandstop characteristics which can be continuously adjusted  ...  radio.  ... 
doi:10.1109/access.2019.2906340 fatcat:qshwauuezjfpzi2rsrdxxxccbm

Program Book

2021 2021 IEEE MTT-S International Microwave Symposium (IMS)  
Workshop we will explore state of art status of Quantum computing applications and their associated technology and circuits analog-RF platforms  ...  efficiently, and need, and restitute Analog-RF signals for their manipulation, and results respectively Thus, there is a need for cryogenic electronics with a large array of functionalities, operating  ...  group His current research interest is high-speed analog CMOS circuits, software defined radio, cognitive radio, and beamforming He has served as the editor-in-chief of the IEEE Journal of Solid-State  ... 
doi:10.1109/ims19712.2021.9575039 fatcat:5ga53lbfuff77k7wodk45e7pyy

2020 Index IEEE Transactions on Vehicular Technology Vol. 69

2020 IEEE Transactions on Vehicular Technology  
+ Check author entry for coauthors ami-mFading Channels With Integer and Non-Integerm; TVT March 2020 2785-2801 Hoang, T.M., Tran, X.N., Nguyen, B.C., and Dung, L.T., On the Performance of MIMO Full-Duplex  ...  H., TVT Feb. 2020 1766-1776 Jiang, C., see Yao, H., TVT June 2020 6718-6730 Jiao, L., see Ju, H., TVT Dec. 2020 15325-15334 Jiao, Y., Wang, P., Niyato, D., Lin, B., and Kim, D.I., Mechanism Design for  ...  ., +, TVT March 2020 2785-2801 Performance Analysis and Optimization of Bidirectional Overlay Cognitive Radio Networks With Hybrid-SWIPT.  ... 
doi:10.1109/tvt.2021.3055470 fatcat:536l4pgnufhixneoa3a3dibdma

Comparison of Phase-less Direction of Arrival Estimation Methods for Switched Beam Antennas

A. Cidronali, G. Collodi, M. Lucarelli, S. Maddio, M. Passafiume, G. Pelosi, S. Selleri
2019 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)  
Akinwale Amusa (Federal University of Agriculture); 10:20 Self-adapting Impedance Matching Circuit for UHF RF Energy Harvester Massimo Merenda ("Mediterranea" University of Reggio Calabria); 10:40 Effects  ...  Spectrum Under- lay Cognitive Radio Raghvendra Kumar Chaudhary (Indian Insti- tute of Technology (Indian School of Mines)); Sreenath Reddy Thummaluru (Indian Institute of Technology (Indian School  ... 
doi:10.1109/piers-spring46901.2019.9017336 fatcat:adobca2sg5ga5ccjpuepkrpbsa

Constant-Envelope Multicarrier Waveforms for Millimeter Wave 5G Applications

Talha Faizur Rahman, Claudio Sacchi, Simone Morosi, Agnese Mazzinghi, Nicola Bartolomei
2018 IEEE Transactions on Vehicular Technology  
A key point of Fifth Generation (5G) wireless networking will be the exploitation of higher frequency bands in the millimeter wave (mm-Wave) spectrum to provide unprecedented data rates to mobile users  ...  In this paper, we investigate Constant-Envelope Multicarrier (CE-MC) waveforms for future adoption in mm-Wave 5G transmissions, namely: Constant-Envelope Orthogonal Frequency Division Multiplexing (CE-OFDM  ...  Moreover, SIW structures allow integrating active circuits, passive components and radiating elements on the same substrate [32] .  ... 
doi:10.1109/tvt.2018.2854723 fatcat:l3sndw6zv5catlioycjkiuod6a

Advanced silicon MMICs for mm wave automotive radar front ends [article]

Alexander Kravets, Technische Universität Berlin, Technische Universität Berlin, Robert Weigel
2015
A high-fidelity two-channel receiver was realized using these circuit components, which achieved a performance comparable to the published state-of-the-art results in SiGe: Single sideband noise figure  ...  The realized passive baluns ("rat-race" and transformer) show excellent common-mode rejection ratios exceeding 30 dB and low losses of 2.5 dB.  ...  It is useful to determine bounds on the necessary values of IP 2 and IP 3 in cognitive radios.  ... 
doi:10.14279/depositonce-4356 fatcat:htatkbqcbbhbrmsyt7dpr47wie

Organizing Committee

2021 2021 IEEE 16th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)  
He is an academician of the Chinese Academy of Sciences, Academy of Sciences for the Developing World, and National Academy of Engineering, USA.  ...  A new concept of "quantum-confined superfluid (QSF)" has been proposed for ultrafast ions and molecules transmission in biological ion channels, which are in a quantum way of single molecular or ionic  ...  Conventional printed circuit board (PCB) or low temperature co-fired ceramic (LTCC) based assemblies are cost-effective and reliable solutions for CS and CMOS integration.  ... 
doi:10.1109/nems51815.2021.9451373 fatcat:mvi3j2kkgjg25pmxhtnvdyvik4

Conference Programme

2021 2020 50th European Microwave Conference (EuMC)   unpublished
mmWave Applications EuMC29 Reconfigurable Planar Passive Components EuMC36 Transmission Lines and Passive Components Glow Beam EuMC25 Metamaterials for Circuits and Sensors EuMC31 Frequency  ...  of Electro-Communications Compact Dual and Wide Band Monopole-Like Antenna Based on SRR for WLAN Applications Passive Antenna Systems Embedded into a Load Bearing Wall for Improved Radio Transparency Lauri  ...  PROGRAMME General Introduction to HPAs for Space Applications  ... 
doi:10.23919/eumc48046.2021.9338166 fatcat:vjpch4b4dfex5hwwl45d4a3i4m

Application of adaptive multilevel substructuring technique to model CMOS micromachined thermistor gas sensor, part (I): A feasibility study

K. Sadek, W. Moussa
Proceedings International Conference on MEMS, NANO and Smart Systems  
Aabbaspour-Tamijani, Arizona State Univ., Tempe, United States TH2B-2: A Novel RF Sensing Circuit Using Injection Locking and Frequency Demodulation for Cognitive Radio Applications C.  ...  of Antenna Geometry > Impedance Matching Techniques > Mutual Coupling between Small Antennas > The Inverted-L, Inverted-F and PIFA Antennas > Considerations for RFID Applications > Recent Advances in  ...  Recently, the scientific community has begun exploring the use of radio-frequency circuits for bio-medical applications. These bio-able radio circuits can be categorized into two sub-topics.  ... 
doi:10.1109/icmens.2003.1222009 dblp:conf/icmens/SadekM03 fatcat:ovvm4vv6vbgalks7ad26xjo3yq
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