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Dynamic Supply Modulation of a 6 – 12 GHz Transmit Array 6 - 12ghz发射阵列的动态电源调制
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124905
Connor Nogales, L. Marzall, G. Lasser, Z. Popovic
{"title":"Dynamic Supply Modulation of a 6 – 12 GHz Transmit Array","authors":"Connor Nogales, L. Marzall, G. Lasser, Z. Popovic","doi":"10.1109/WAMICON57636.2023.10124905","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124905","url":null,"abstract":"This paper presents dynamic supply modulation results of a broadband 6–12 GHz 4 × 1 transmit antenna array. The four 2-W GaN MMIC PAs share a 4-level GaN MMIC dynamic power supply. A single GaN MMIC PA is first characterized at 6.5 and 11.5 GHz, and its efficiency while tracking a 10-MHz signal is compared to static drain supply performance, showing 10 percentage point (pp) average efficiency improvement. Four such PAs are then assembled in a modular array of broadband double-ridge dielectrically-loaded horn antennas and characterized under supply modulation. The measured average efficiency when each of the four PAs are terminated with 50Ω is compared to when the PAs are loaded with the antenna array. An average PAE improvement of 3.4 pp is achieved over the static case with the supply modulated array at 6.5 GHz when amplifying a 10-MHz 10.7-dB peak-to-average power ratio (PAPR) signal, not taking the >80% efficient modulator into account. Linearity is characterized in terms noise power ratio (NPR) of the individual PAs, and at 6.5 GHz the improvement ranges from 2 to 6 dB, depending on the PA. To the best of the authors’ knowledge, this is the first demonstration of dynamic supply modulation for broadband array efficiency and linearity enhancement.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125723076","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}
引用次数: 0
Co-Design of Doherty Power Amplifier and Post-Matching Bandpass Filter 多尔蒂功率放大器与后匹配带通滤波器的协同设计
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124924
Haifeng Lyu, R. Lovato, S. Gowri, X. Gong, Kenle Chen
{"title":"Co-Design of Doherty Power Amplifier and Post-Matching Bandpass Filter","authors":"Haifeng Lyu, R. Lovato, S. Gowri, X. Gong, Kenle Chen","doi":"10.1109/WAMICON57636.2023.10124924","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124924","url":null,"abstract":"This paper presents a novel co-designed Doherty power amplifier (DPA) and a post-matching output bandpass filter. The filter is designed as a matching network to present the desired impedance at the combining node of carrier and peaking paths, thus eliminating the quarter-wave transformer of the conventional Doherty combiner network. This co-design method minimizes the circuit complexity and inter-connection loss, leading to an enhanced overall performance. A prototype is designed and implemented using GaN transistors and third-order Hairpin filter with 20% bandwidth centered at 3.6 GHz. The measured frequency response exhibits desired amplifier-filter function, and Doherty efficiency enhancement are experimentally demonstrated with efficiency of 68% and 55% at saturation and 6-dB back-off regions. Modulated measurement shows excellent linearity (−37-dB adjacent channel leakage ratio) and efficiency (47%) for transmitting the LTE signal with 10.5-dB PAPR.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134083395","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}
引用次数: 0
Wide Band CMOS Power Amplifier with High Flatness Using Inter-Digit Transformer and RC-Feedback 采用数字间变压器和rc反馈的高平坦度宽带CMOS功率放大器
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124897
Ja-Soo Cho, Jaeyong Lee, Changkun Park
{"title":"Wide Band CMOS Power Amplifier with High Flatness Using Inter-Digit Transformer and RC-Feedback","authors":"Ja-Soo Cho, Jaeyong Lee, Changkun Park","doi":"10.1109/WAMICON57636.2023.10124897","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124897","url":null,"abstract":"In this study, a Ka-band CMOS power amplifier (PA) with wide bandwidth and high flatness to support the full bandwidth of 5G mobile communication was proposed. To obtain wide bandwidth, RC-feedback and inter-digit transformer techniques were applied to the driver stage and matching networks, respectively. In addition, a diode linearizer was applied to the power stage to compensate for the deteriorated output power due to securing wide bandwidth. To verify the feasibility of the proposed Ka-band PA, we designed the PA using a 65-nm RFCMOS process. The designed PA occupies the core area of 0.174 mm2. The measured 1 dB bandwidth and gain were higher than 12 GHz and 13.1 dB, respectively. The measured saturation power, P1dB, and PAE were above 12.53 dBm, 10.8 dBm, and 9.18%, respectively","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123636791","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}
引用次数: 0
A Hybrid Skin, Fat, and Muscle Human Body Tissue-Mimicking Biological Phantom and Antenna Testbed 混合皮肤，脂肪和肌肉人体组织-模拟生物幻影和天线测试平台
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124896
M. Grady, T. Weller
{"title":"A Hybrid Skin, Fat, and Muscle Human Body Tissue-Mimicking Biological Phantom and Antenna Testbed","authors":"M. Grady, T. Weller","doi":"10.1109/WAMICON57636.2023.10124896","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124896","url":null,"abstract":"Human body tissue-mimicking biological phantoms (bio-phantoms) mimic the electrical and physical properties of actual body tissue and are useful structures for validating wireless thermometer performance. A hybrid bio-phantom testbed designed to operate with an antenna system is presented. The hybrid bio-phantom has realistic dielectric properties and is well matched to the antenna. Reflection properties are validated for an antenna-phantom testbed, and the properties show an accurate prediction for the characteristics of a realistic finite thickness multilayered human body from 0.4 to 3 GHz.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125450462","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}
引用次数: 0
Temperature Dependent Large-Signal Modeling of GaN HEMTs at Ka-Band using the ASM-HEMT 基于ASM-HEMT的ka波段GaN hemt温度相关大信号建模
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124913
N. Miller, Alexis Brown, Michael Elliott, R. Gilbert
{"title":"Temperature Dependent Large-Signal Modeling of GaN HEMTs at Ka-Band using the ASM-HEMT","authors":"N. Miller, Alexis Brown, Michael Elliott, R. Gilbert","doi":"10.1109/WAMICON57636.2023.10124913","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124913","url":null,"abstract":"This paper presents for the first time a temperature dependent ASM-HEMT model extracted from a gallium nitride (GaN) high electron mobility transistor (HEMT) validated with Ka-band on-wafer large-signal measurements. Modifications are made to the standard ASM-HEMT model to accurately model the DC, small-signal, and large-signal measurements collected as a function of ambient temperature. This work could shed light on the temperature dependence of GaN HEMTs and could enable the rapid design of high temperature integrated circuits.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114292631","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}
引用次数: 0
3D Printed Composite Mesh for EM Shielding Applications 用于电磁屏蔽应用的3D打印复合网格
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124908
Isabela Buitron-Burbano, C. A. Perez-Lopez, A. Ávila
{"title":"3D Printed Composite Mesh for EM Shielding Applications","authors":"Isabela Buitron-Burbano, C. A. Perez-Lopez, A. Ávila","doi":"10.1109/WAMICON57636.2023.10124908","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124908","url":null,"abstract":"The promises of 5G for high-speed internet and complete connectivity, anytime, anywhere and for anyone within a consumer electronics sector, rises concerns for possible signal interference and imposes the need for EM shielding solutions. We present the design and fabrication of a 3D printed hexagonal mesh (13 x 9 x 0.05) cm3 with unit cell maximal diameter 2.7 mm to reduce EM penetration at 2.4 GHz and 5 GHz. The mesh was characterized in an anechoic chamber adapting the MIL-STD-285 standard to vary the mesh-receiver antenna separation distance. The results show that the mesh exhibits a high SEA with a low SER for both frequencies and a total SE of 15 dB for 5 GHz, 23.66% higher than for 2.4 GHz. The closer the mesh to the receiver, the superior the absorption capacity. Attenuation could be explained by the destructive interference associated to the combination of composite filament in a concentric structure.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131261495","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}
引用次数: 0
Highly Energy Efficient 64-element Array Antenna Based on Cu/Co Metaconductor and Fused Silica 基于Cu/Co超导体和熔融二氧化硅的高效64元阵列天线
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124910
Hae-in Kim, Alexander Wilcher, Woosol Lee, Shelby Nelson, Y. Yoon
{"title":"Highly Energy Efficient 64-element Array Antenna Based on Cu/Co Metaconductor and Fused Silica","authors":"Hae-in Kim, Alexander Wilcher, Woosol Lee, Shelby Nelson, Y. Yoon","doi":"10.1109/WAMICON57636.2023.10124910","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124910","url":null,"abstract":"Metaconductor-based 64-element 3D array antenna-in-packaging (AiP) on fused silica substrates is presented for highly energy efficient 5G new radio wireless communications in a millimeter-wave (mm-wave) spectrum. The deployment of the Copper (Cu)/Cobalt (Co) metaconductor improves the efficiency of AiP at 28 GHz by reducing the conductor loss associated with the skin effect. The 3D AiP configuration enhances antenna performance by relieving the electromagnetic coupling and increasing antenna bandwidth. The AiP was designed on a multilayered fused silica substrate using the finite element method. The devices were prototyped using microfabrication and wafer bonding techniques. The Cu/Co metaconductor-based AiP showed a 10-dB bandwidth of 2 GHz at 28 GHz and a 9 dB gain improvement when compared to the Cu counterpart.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131603335","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}
引用次数: 0
Frequency Characterization for Glucose Detection with Software Defined Radio 用软件无线电检测葡萄糖的频率表征
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124893
Faheem Shaikh, S. Laha
{"title":"Frequency Characterization for Glucose Detection with Software Defined Radio","authors":"Faheem Shaikh, S. Laha","doi":"10.1109/WAMICON57636.2023.10124893","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124893","url":null,"abstract":"An in-vitro study for non-invasive glucose detection using the method of electromagnetic (microwave) sensing is conducted using the programmable and tunable software-defined radio (SDR). The study determines the frequency or a range of frequency that is found to exhibit the highest correlation with different glucose concentration. The transmitted frequency range varies between 700 MHz to 6 GHz. When the transmitted base-band signal from the SDR is modulated at a specific carrier frequency and is allowed to pass through a glucose solution, the receiver end of the SDR detects the power level at the base-band power spectrum. It has been observed at center frequencies below 2.4 GHz, the power level is highly linear with glucose concentration. Specifically, the highest correlation is observed at a frequency of 1.7 GHz at which the application of simple linear regression led to R-squared coefficients of 91%. So far, to our knowledge there has been no such systematic study on frequency characterization to determine the frequency that has the highest correlation of power level with variation in glucose concentration.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131054529","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}
引用次数: 0
Automated Radar Data Labeling through Computer Vision 基于计算机视觉的自动雷达数据标记
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124886
Jasmin Gabsteiger, Tim Maiwald, Simon Wünsche, R. Weigel, F. Lurz
{"title":"Automated Radar Data Labeling through Computer Vision","authors":"Jasmin Gabsteiger, Tim Maiwald, Simon Wünsche, R. Weigel, F. Lurz","doi":"10.1109/WAMICON57636.2023.10124886","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124886","url":null,"abstract":"This paper presents the combination of an existing computer vision model with a highly integrated mm-wave radar system for automated radar data labeling. A pre trained model for person presence detection is used in combination with a camera sensor to determine, whether a person is present or not. The binary prediction is used to label simultaneously measured radar data of the same scenery. The paper addresses the challenges of varying illumination conditions, camera and radar sensor aperture angles and data quality which are dominant influences at the labeling process. The system significantly decreases human effort by automating the labeling process. It is used to generate 10,000 data points, label them and train a neural network with 95.7% accuracy. Finally, a proof-of-concept, training, and evaluation of radar-based activity detection with automatically labeled data is presented. The proposed method can contribute in person presence detection under challenging light conditions.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123804929","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}
引用次数: 0
Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements 蜂窝数字后失真:信号处理方法和射频测量
2023 IEEE Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2023-04-17 DOI: 10.1109/WAMICON57636.2023.10124889
Huseyin Babaroglu, L. Anttila, Guixian Xu, Matias Turunen, M. Allén, M. Valkama
{"title":"Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements","authors":"Huseyin Babaroglu, L. Anttila, Guixian Xu, Matias Turunen, M. Allén, M. Valkama","doi":"10.1109/WAMICON57636.2023.10124889","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124889","url":null,"abstract":"In this paper, we study the feasibility of digital post-distortion (DPoD) based mitigation of transmitter nonlinear distortion in cellular networks. With specific emphasis on downlink, we describe a computationally efficient one-shot method to estimate and mitigate the cascaded multipath channel and transmitter nonlinear distortion effects at terminal receiver, building on demodulation reference symbols (DMRSs). We also describe a DMRS boosting approach to match the envelope characteristics of the DMRS and the actual data-bearing multicarrier symbols such that accurate mitigation is feasible. We provide RF measurement results with a state-of-the-art 28 GHz active antenna array and 256-QAM data modulation, demonstrating larger performance enhancements in received signal error vector magnitude (EVM) compared to existing computationally expensive iterative methods.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126782288","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}
引用次数: 2
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