S. Wane, D. Kendig, T. Dinh, K. Alkhalifeh, A. E. Cabrera, Q. Tran, M. Shakouri, A. Shakouri, L. Salmon, G. Molnar, K. Ridier, D. Bajon, L. Nyssens, A. Pip, M. Vanbrabant, M. Rack, D. Tihon, C. Craeye, P. Simon, J. Raskin, D. Lederer, A. Bousseksou
{"title":"Combined Thermo-Reflectance and Thin-Film Coating in Near-Field Imaging of Chip-Package-PCB-Antenna Modules for Industrial-Testing and Failure Analysis","authors":"S. Wane, D. Kendig, T. Dinh, K. Alkhalifeh, A. E. Cabrera, Q. Tran, M. Shakouri, A. Shakouri, L. Salmon, G. Molnar, K. Ridier, D. Bajon, L. Nyssens, A. Pip, M. Vanbrabant, M. Rack, D. Tihon, C. Craeye, P. Simon, J. Raskin, D. Lederer, A. Bousseksou","doi":"10.1109/WMCS58822.2023.10194284","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194284","url":null,"abstract":"A holistic Near-Field (NF) Over-the-Air (OTA) testing solution for Chip-Package-PCB-Antenna modules based on combined thermo-reflectance and thin-film coating using Spin-Crossover (SCO) materials is proposed. The SCO coating process exhibits highly reliable thermometric performance (diffraction-limited sub-mu m spatial, sub-mu s temporal and 1°C thermal resolution), which stems to a large extent from the unprecedented quality of the vacuum-deposited thin films of the molecular complex used in this work. The resulting performance qualifies the SCO coating process, in terms of fabrication and switching endurance (surpassing 107 thermal cycles in ambient air), for industrial testing ensuring highly reproducible measurement results. The proposed NF sensing solutions are validated through several practical applications using front-end-modules (FEMs) manufactured in advanced GaN and FDSOI technologies co-designed with antenna-in-package (AiP) modules based on heterogeneous system-in-package (SiP) and WLCSP fan-in/fan-out integration assemblies.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122026225","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":"First-Order Creeping Wave Channel Characterization at Sub-6GHz 5G Frequency Bands","authors":"D. Agu, J. Kulkarni, Jose Alcala-Medel, Yang Li","doi":"10.1109/WMCS58822.2023.10194274","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194274","url":null,"abstract":"This paper presents a study on the creeping wave characteristics of the N78 and N79 sub-6GHz 5G frequency bands. Wait's theory was used to predict the creeping wave characteristics, which were then validated through simulations and measurements. The study involved moving the receiver antenna in a counterclockwise direction on a human torso with a circumference of 94 cm while keeping the transmitter antenna fixed. Root Mean Square Error (RMSE) analysis was conducted for both the front part and the entire torso. The theoretical and simulation results showed an exponential decay of 1.22 dB/cm and 1.31 dB/cm, respectively, in the linear region at frequencies of 3.55 GHz and 4.70 GHz. Finally, the measured S11 (TX) and S22 (RX) results were presented, which showed good agreement when the RX was moved at a distance of 2 cm.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132265853","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":"5G mmWave Dualstrate Broad Bandwidth and Wide-beamwidth Conformal Antenna for On-Body Wearable Applications","authors":"J. Kulkarni, B. Garner, Yang Li","doi":"10.1109/WMCS58822.2023.10194277","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194277","url":null,"abstract":"A new radio (NR) fifth generation (5G) millimeter (mm) wave dualstrate textile-based antenna operating at (36.91 - 48.92 GHz) is designed and investigated for on-body wearable applications. The antenna is engraved on a 1mm denim substrate and occupies a volume of $10times 10times 5text{mm}3$. The main radiator designed on the lower dualstrate is resonant at 40GHz, whereas the gamma-shaped radiator printed on the upper dualstrate along with four vias broadens the 3 dB beamwidth from 49.5° to 149.8°, as well as increases the -10 dB impedance bandwidth by 11.75%. The realization of the dualstrate antenna is investigated in both free space as well as on a flat equivalent human phantom. Finally, a bending analysis confirms the flexibility of the antenna, which retains its performance along the curvature of the human body.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125206169","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}
C. Baylis, Dennis Roberson, Samuel Hussey, Austin Egbert, Andrew Clegg, R. Marks
{"title":"Adaptive and Reconfigurable Collaboration between Aircraft Wireless Systems and Wireless Communications","authors":"C. Baylis, Dennis Roberson, Samuel Hussey, Austin Egbert, Andrew Clegg, R. Marks","doi":"10.1109/WMCS58822.2023.10194285","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194285","url":null,"abstract":"The radar altimeter crisis of 2021–2022 shows that a new paradigm is needed to frame spectrum sharing between aircraft wireless systems and commercial wireless transmissions. Because impactful interference issues with many aircraft systems occur on takeoff and landing, ground-based wireless communication transmitters can be reconfigured to avoid interference impacts based on the flight path of the aircraft. A framework is discussed that uses a spatial-spectral broker co-located with air traffic control to parse resources for spectral and spatial use. This framework defines needed research in broker-based spectral coordination, propagation modeling, circuit and array reconfiguration techniques, and policy usage. The prescribed approach for spectral coordination will allow aircraft systems to ensure passenger safety to millions of passengers each day, while catalyzing the growth of wireless communication technologies to serve humanity on a wider global level.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130983682","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 38° Wide Beam-Steerable Compact and Highly Efficient V-band Leaky Wave Antenna with Surface Integrated Waveguide for Vehicle-to-Vehicle Communication","authors":"Pallav Sah, I. Mahbub","doi":"10.1109/WMCS58822.2023.10194262","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194262","url":null,"abstract":"This paper presents a highly efficient single-layer substrate-integrated waveguide (SIW) based leaky-wave antenna (LWA) for the millimeter-wave unmanned aerial vehicle (UAV) communication system. The leaky wave-based radiating part of the unit cell includes a combination of two Y-shaped slots with 46° stretched V etched on the top SIW, resulting in a W-shaped structure. The proposed array achieves a high gain of 13.47 dBi for the frequency range of 56.3 GHz to 63.4 GHz covering the unlicensed band, with a fine matching level below -21 dB. Using the leaky wave antenna's frequency scanning capability, the proposed antenna exhibits a scanning range of 38°. The designed antenna shows a promising solution for the UAV-to-UAV applications due to its low profile and compactness and is well-suited for the single-layer low-cost printed circuit board fabrication process using Rogers RT 5880 as substrate. The radiation pattern for the achieved bandwidth shows an average half-power angular beamwidth of 12.1°, resulting in a radiation efficiency of more than 62% for the elements arranged uniformly at a distance of $mathbf{0.456}lambda$. Following an overall low-profile compact size of $6.48times 4 lambda$ corresponding to $3.24times 0.2 text{cm}$ and improved performance, the antenna achieves an elliptical polarization at 60 GHz for an axial ratio equal to 3.5 dBi.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124448938","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 Wideband Millimeter-Wave Communication and Sensing Testbed for 75–500 GHz","authors":"Karl Strecker, W. Choi, J. O’Hara","doi":"10.1109/WMCS58822.2023.10194272","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194272","url":null,"abstract":"There is a great interest in developing millimeter-and sub-millimeter-wave systems for next-generation wireless communication and remote sensing. Necessary steps toward this goal include the comprehensive characterization of millimeter-wave wireless channels, the development of high-accuracy channel models, and the design of waveforms and associated signal processing schemes optimized for millimeter-wave channels. Commercial instruments are beginning to reach the point where such validation measurements can be made, however, it remains challenging to realize end-to-end systems that can support sub-millimeter-wave carrier frequencies and broad bandwidths simultaneously. In this paper, we present a millimeter-to sub-millimeter-wave testbed based on a 65-Gsps arbitrary waveform generator, an 80-Gsps real-time oscilloscope, and frequency multiplier-based wideband up-/down-converters. The system can generate and analyze arbitrary waveforms up to 25 GHz instantaneous bandwidth within the frequency range of 75–500 GHz. This platform enables experimental validation of proposed millimeter-wave channel models and opens the doors for novel studies in communications and sensing at millimeter-and sub-millimeter-wave frequencies involving real-world data streams and custom sensing waveforms. We also present demonstrations of the system's capabilities, including a 20 Gbit QPSK-modulated link spanning 1 meter at 410 GHz.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127519436","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}
Haniye Mehraban, W. Park, Hyeon-Bin Jo, Su-Min Choi, Daehyun Kim, Sang-Kuk Kim, J. Yun, T.E. Kim, W. Choi
{"title":"A W-Band Low-Noise Amplifier in 50-nm InP HEMT Technology","authors":"Haniye Mehraban, W. Park, Hyeon-Bin Jo, Su-Min Choi, Daehyun Kim, Sang-Kuk Kim, J. Yun, T.E. Kim, W. Choi","doi":"10.1109/WMCS58822.2023.10194275","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194275","url":null,"abstract":"This paper presents a W-band low noise amplifier (LNA) in 50-nm InP high-electron-mobility-transistor (HEMT) technology. The LNA employs a three-stage design in common-source (CS) configuration using $mathbf{2}times mathbf{20} mumathrm{m}$ transistors, coplanar waveguides (CPW), metal-insulator-metal capacitors (MIM), and NiCr-based thin film resistors (TFR). The first two stages employ inductive source feedback for concurrent noise and gain matching and in-band stability. The 3rd stage utilizes resistive parallel feedback. This design shows a simulated noise figure of 1.4 dB with a measured associated gain of 14 dB at 94 GHz while consuming a DC power of 75 mW.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127313181","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}
Samuel Haug, Austin Egbert, R. Marks, C. Baylis, A. Martone
{"title":"Changepoint Detection for Real-Time Spectrum Sharing Radar","authors":"Samuel Haug, Austin Egbert, R. Marks, C. Baylis, A. Martone","doi":"10.1109/WMCS58822.2023.10194260","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194260","url":null,"abstract":"Modern radar must adapt to changing environments, and changepoint detection is a method to do so. Many radar systems employ a prediction action cycle to proactively determine transmission modes while spectrum sharing. This method constructs and implements a model of the environment to predict unused frequencies, and subsequently transmits in predicted available bands. For these selection strategies to succeed, the assessment of the underlying environmental models must be robust to change. Changepoint detection increases this robustness. Changepoint detection is the identification of sudden changes, or changepoints, in the distribution from which data is drawn. This information allows the models to discard “garbage” data from a previous distribution, which has no relation to the current state of the environment. For spectrum sharing applications, these changepoints may represent interferers leaving and entering the spectral environment, or changing their spectrum access patterns. In this work, we demonstrate the effectiveness of the addition of changepoint detection to spectrum sharing algorithms in changing environments. Bayesian online changepoint detection (BOCD) is applied to the sense-and-predict algorithm to increase the accuracy of its models and improve its performance. The use of changepoint detection allows for dynamic and robust spectrum sharing even as interference patterns change suddenly and dramatically. BOCD is especially advantageous because it enables online changepoint detection, allowing models to be updated continuously as data are collected. This strategy can also be applied to other predictive algorithms that create and maintain models in changing environments.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131326220","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}