IEEE Transactions on Microwave Theory and Techniques最新文献_第9页

Design of Compact Bidirectional Amplifier Utilizing Transformers-Stacking Technique 利用变压器叠加技术设计紧凑型双向放大器

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3506735

Jian Zhang;Ming Zhai;Dawei Wang;Yichen Liu;Xiangjie Yi;Ruitao Wang;Wei Zhu;Yan Wang

{"title":"Design of Compact Bidirectional Amplifier Utilizing Transformers-Stacking Technique","authors":"Jian Zhang;Ming Zhai;Dawei Wang;Yichen Liu;Xiangjie Yi;Ruitao Wang;Wei Zhu;Yan Wang","doi":"10.1109/TMTT.2024.3506735","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3506735","url":null,"abstract":"Extremely high cost and form factors have become the most important reason limiting the promotion of large-scale phased-array systems for fifth-generation communication and K-/Ka-band satellite communication (SATCOM). This article presents a novel topology of ultracompact bidirectional amplifiers utilizing transformers-stacking techniques for low-cost large-scale phased arrays. In contrast to conventional bidirectional amplifier structures, this article proposes a more scalable bidirectional topology, which utilizes a magnetic self-canceling technique to stack the low-noise amplifier (LNA) into the power amplifier (PA) completely, realizing the function of the bidirectional amplifier with negligible performance penalty. In order to verify the proposed technique, the first bidirectional amplifier whose LNA mode and PA mode can work in different bands is implemented in a 45-nm CMOS SOI process for the K-/Ka-band SATCOM system. This design achieves 18.3-dBm peak saturated output power (<inline-formula> <tex-math>$P_{text {sat}}$ </tex-math></inline-formula>) and 15.9-dBm peak 1-dB compression output power (<inline-formula> <tex-math>$rm {OP}_{1,text {dB}}$ </tex-math></inline-formula>) in the Ka-band PA mode while maintaining a minimum noise figure (NF) of 2.46 dB in the K-band LNA mode. Furthermore, a notch filter is integrated into the three-winding transformer-based transmit/receive switches (TRSWs) to suppress the sidelobe of TX and avoid performance deterioration of the RX. Benefiting from the integration of a build-in-self notch filter, the proposed design has good gain suppression (>45 dB) to block the interferer from other TX chips in the LNA mode. The core size of this proposed design is only 0.14 mm2, which is only 20%–50% of the size occupied in conventional works.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"1951-1963"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Wideband Millimeter-Wave CMOS Receiver Using a Reconfigurable Low-Noise Amplifier With a 3-Winding Transformer Load 采用可重构低噪声放大器的宽带毫米波CMOS接收机，带3绕组变压器负载

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3506657

Mohammad Ghaedi Bardeh;Mohamad Mahdi Rajaei Rizi;Navid Naseh;Jeyanandh Paramesh;Kamran Entesari

{"title":"A Wideband Millimeter-Wave CMOS Receiver Using a Reconfigurable Low-Noise Amplifier With a 3-Winding Transformer Load","authors":"Mohammad Ghaedi Bardeh;Mohamad Mahdi Rajaei Rizi;Navid Naseh;Jeyanandh Paramesh;Kamran Entesari","doi":"10.1109/TMTT.2024.3506657","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3506657","url":null,"abstract":"This article presents a CMOS millimeter-wave (mm-wave) wideband image-reject (IR) receiver using a reconfigurable low-noise amplifier (LNA) with a 3-winding transformer load in 22-nm fully depleted silicon-on-insulator (FDSOI). The complete analysis of the proposed 3-winding transformer load is presented, where the location of the poles and zeros and also the equation for the first port, self-impedance (<inline-formula> <tex-math>$Z_{11}$ </tex-math></inline-formula>) are calculated and a design strategy along with a comparison with the conventional double-tuned transformer load is performed. Based on this approach, an mm-wave wideband/reconfigurable receiver is presented with three major contributions including: 1) wideband/reconfigurable frequency mode operation; 2) canceling interfere signals right after LNA to relax mixer linearity requirements; and 3) on-chip image-rejection using a three-stage resistor-capacitor (RC)-capacitor-resistor (CR) filter with tunable resistors for optimum operation. The 3-dB bandwidth in wideband mode is from 21.5 to 32.5 GHz with a peak gain of 45.5 dB at 22.5 GHz, and for both low-frequency and high-frequency reconfigurable modes, it is from 21.5 to 26.5 GHz with a peak gain of 45.45 dB at 22 GHz and from 27 to 32 GHz with a peak gain of 46.58 dB at 29 GHz, respectively. The measured noise figure (NF) value shows a minimum of 2.9 dB at 30 GHz. The image rejection is better than 30 dB for the 19–34-GHz range and the minimum <inline-formula> <tex-math>$text {OP}_{text {1dB}}$ </tex-math></inline-formula> is -2.8 dBm over the same frequency range. The entire chip has a power consumption of 94.8 mW with the dimensions of <inline-formula> <tex-math>$2.331times 0.756$ </tex-math></inline-formula> mm excluding the pads.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 7","pages":"3879-3892"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive Separate Variational Mode Extraction Method for Noncontact Multivariable Vital Signs Monitoring Using FMCW Radars FMCW雷达非接触多变量生命体征监测的自适应分离变分模提取方法

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3510038

Zhen Yang;Jun Hu

{"title":"Adaptive Separate Variational Mode Extraction Method for Noncontact Multivariable Vital Signs Monitoring Using FMCW Radars","authors":"Zhen Yang;Jun Hu","doi":"10.1109/TMTT.2024.3510038","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3510038","url":null,"abstract":"The breath rate (BR), heart rate (HR), breathing-breathing interval (BBI), and HR variability (HRV) are the critical vital sign parameters. In this article, a novel method named adaptive separate variational mode extraction (ASVME) algorithm is proposed to accurately monitor multivariable vital signs (MVVSs) at the same time with a frequency-modulated continuous wave (FMCW) radar system in practical scenarios. First, a minimum variance distortionless response (MVDR) spectrum estimation algorithm is proposed to accurately locate respiratory and heartbeat components, which can effectively restrain the influence of respiratory harmonics on HR and R-R intervals (RRIs) measurements. Subsequently, an adaptive variational mode extraction (AVME) algorithm is proposed to accurately extract respiratory waves and heartbeat waves after accurate frequency location. The proposed AVME is an adaptive parameter optimization technique of the variational mode extraction (VME) algorithm based on the high correlation between the extracted signal and the modeled signal as well as the minimum energy loss rate of the extracted signal. Furthermore, an additional sliding window extraction method is proposed in the ASVME method, which further improves the accuracy and stability of the detection of MVVS. The method is verified in a variety of experimental scenarios. The experimental results indicate that the ASVME can accurately detect multivariable vital signs, with the root-mean-square error (RMSE) of the BR and HR demonstrating a high accuracy of 0.46 and 0.80 bpm, respectively, and the RMSE of BBI and RRI being 0.059 and 0.0046 s, respectively.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 7","pages":"4162-4175"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photonic-Assisted Adaptive Wideband Self-Interference Cancellation Based on Self-Mixing for FMCW Radar 基于自混频的FMCW雷达光子辅助自适应宽带自干扰消除

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3505987

He Wang;Aijun Wen;Chongbo Zhao;Yehong Fan;Miaochuan Peng

{"title":"Photonic-Assisted Adaptive Wideband Self-Interference Cancellation Based on Self-Mixing for FMCW Radar","authors":"He Wang;Aijun Wen;Chongbo Zhao;Yehong Fan;Miaochuan Peng","doi":"10.1109/TMTT.2024.3505987","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3505987","url":null,"abstract":"An adaptive photonic-assisted wideband self-interference cancellation (SIC) scheme based on self-mixing for frequency-modulated continuous-wave (FMCW) radar is proposed. The signals are modulated onto the optical carrier using a dual-polarization quadrature phase shift keying (DP-QPSK) modulator. After adjusting the delay and amplitude of the reference signal in the optical domain, the self-interference (SI) signal is eliminated through a balanced photodetector (BPD). The output signal from the BPD and the reference signal are mixed and then downconverted to zero intermediate frequency. By checking the delay difference between the signal of interest (SOI) and the SI signal, the two signals are distinguished. The Hooke-Jeeves (HJs) algorithm takes the power of the SI signal after self-mixing as the objective function, adaptively optimizing the delay and amplitude of the reference signal until the objective function is minimized. Experimental results show that the scheme can successfully recover the SOI, with the SI signal being eliminated more than 30 dB. The scheme achieved cancellation depths of 33.2 and 31.9 dB for broadband signals in Ku-band with bandwidths of 500 MHz and 1 GHz, respectively. Additionally, we demonstrated the cancellation of signals within the 4–40 GHz range, with a bandwidth of 100 MHz, achieving a cancellation depth >30 dB.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 7","pages":"4064-4073"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave Photonic Multimode Injection-Locked Frequency Divider With a Wide Operational Range Based on an Optoelectronic Oscillator 基于光电振荡器的宽工作范围微波光子多模注入锁定分频器

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3509412

Siyu Liu;Kaitao Lin;Weiye Hu;Zhenzhao Yi;Xinhuan Feng;Jianghai Wo;Jianping Yao

{"title":"Microwave Photonic Multimode Injection-Locked Frequency Divider With a Wide Operational Range Based on an Optoelectronic Oscillator","authors":"Siyu Liu;Kaitao Lin;Weiye Hu;Zhenzhao Yi;Xinhuan Feng;Jianghai Wo;Jianping Yao","doi":"10.1109/TMTT.2024.3509412","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3509412","url":null,"abstract":"We propose and implement a microwave photonic multimode injection-locked frequency divider (ILFD) with a wide frequency operational range based on an optoelectronic oscillator (OEO). In the OEO, a Mach-Zehnder modulator (MZM) and a photodetector (PD) are employed to construct a frequency multiplier to achieve an <inline-formula> <tex-math>${N} -1$ </tex-math></inline-formula> times frequency multiplication, which is then mixed with an external injection signal at an electrical mixer in the OEO loop. By adjusting the round-trip gain and time delay of the OEO loop, a radio frequency (RF) signal with a frequency that is 1/N that of the injection signal is generated, thus N times frequency division is achieved. Theoretical analysis and experimental verification are conducted to evaluate the effectiveness of the proposed ILFD. The results demonstrate that the system can divide an RF signal from 2.6 to 20.8 GHz to 1.3–1.95 GHz with different frequency division factors ranging from 2 to 13. A significant improvement in phase noise of 35.11 dB is also obtained at a frequency offset of 100 kHz when the frequency division factor is 13.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 7","pages":"4096-4103"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and Design of Compact Ridge Waveguide Bandpass Filter and Filtering Balun With Improved Upper Stopband Performance 改进上阻带性能的紧凑型脊波导带通滤波器和滤波Balun的分析与设计

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3509865

Jian-Xin Chen;Ying Xue;Xu Shi;Wei Qin;Yong-Jie Yang

{"title":"Analysis and Design of Compact Ridge Waveguide Bandpass Filter and Filtering Balun With Improved Upper Stopband Performance","authors":"Jian-Xin Chen;Ying Xue;Xu Shi;Wei Qin;Yong-Jie Yang","doi":"10.1109/TMTT.2024.3509865","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3509865","url":null,"abstract":"This article proposes a controllable and quantizable coupling structure for ridge waveguide (WG) resonators, which is utilized to design miniatured bandpass filter (BPF) and filtering balun. It consists of ridge WGs and evanescent rectangular WGs with nonuniformed widths. The evanescent WGs between the ridge resonators can be equivalent to a T-shaped three-inductor network, and then its width is able to adjust the inductive coupling strength. As the width decreases, i.e., the shunt inductor is also decreased, the distance between the resonators is reduced so that the coupling strength between them can be maintained. Based on this, an inline filter is designed with a compact structure and two transmission zeros (TZs) are introduced. Based on the filter prototype, a double-ridge WG filtering balun is created by stacking two BPFs in a mirror structure. A metal plate in the middle is inserted to suppress two harmonics near the passband, thereby achieving a good out-of-band performance. For demonstration, a three-order BPF and filtering balun are fabricated and measured. Measured results indicate both of them have the advantages of low loss and compact size. Furthermore, the spurious-free frequency response of both designs is over three times the passband frequency.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 7","pages":"3977-3986"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensitivity-Enhanced Multiport-Network-Based Sensor for Moisture Detection in Lubricant Oil 基于灵敏度增强的多端口网络的润滑油水分检测传感器

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-11 DOI: 10.1109/TMTT.2024.3492186

Kai Wan;Jie Huang;Xingchuan Liu;Shuyan Zhu

{"title":"Sensitivity-Enhanced Multiport-Network-Based Sensor for Moisture Detection in Lubricant Oil","authors":"Kai Wan;Jie Huang;Xingchuan Liu;Shuyan Zhu","doi":"10.1109/TMTT.2024.3492186","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3492186","url":null,"abstract":"In this article, a multiport-network-based microwave sensor integrated with an interference circuit is proposed to detect the moisture content in lubricant oil for the purpose of phase-sensitivity enhancement. First, a composite right-/left-handed (CRLH) transmission lines (TLs)-based sensing element is developed to carry moisture content information characterized by a change in the transmission phase. Then, two CRLH TLs-based sensing elements in the differential configuration are integrated into an interference circuit, and the coupling coefficients of the hybrid coupler in the interference circuit are investigated to analyze the power distribution ratio between the reference and sensing branches and obtain an output phase-sensitivity enhancement. Subsequently, the output phase from the interference circuit is translated into power readings through the multiport circuit, and then the corresponding relationship between them is analyzed and utilized to estimate the moisture content in lubricant oil. Finally, a LabVIEW-based real-time measurement system is developed to characterize the moisture content in lubricant oil with the volume fraction from 0.2% to 15%. The measured results exhibit an improvement in phase sensitivity from 1.03°/(v%) to 3.82°/(v%) compared to the CRLH TLs-based sensing elements itself. Both theoretical analysis and experimental results validate the sensitivity enhancement scheme by use of a multiport-network-based topological structure.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 5","pages":"2739-2751"},"PeriodicalIF":4.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Watt-Level, 3.3-V Triple-Stack Switched Capacitor Digital PA in FinFET Technology 基于FinFET技术的3.3 v三叠开关电容数字PA

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-09 DOI: 10.1109/TMTT.2024.3509493

Naor R. Shay;Eran Socher;Ofir Degani

{"title":"A Watt-Level, 3.3-V Triple-Stack Switched Capacitor Digital PA in FinFET Technology","authors":"Naor R. Shay;Eran Socher;Ofir Degani","doi":"10.1109/TMTT.2024.3509493","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3509493","url":null,"abstract":"This work proposes and analyzes a new circuit topology that enables reliable triple-transistor stacking in the switched-capacitor digital power amplifier (SC-DPA) working from a 3.3-V supply, about three times the process maximum allowed voltage across the transistor nodes (<inline-formula> <tex-math>$V_{D,text {Max}}$ </tex-math></inline-formula>). The proposed topology employs capacitive feedback (CF) to meet device voltage constraints. Higher supply voltage usage results in reduced supply ripples and improved memory effects while allowing higher power watt-level SC-DPA. A 5–7-GHz, dual-core Doherty-like combining SC-DPA prototype was implemented and integrated into an all-digital polar transmitter (DPTX) using 16-nm FinFET CMOS technology. The SC-DPA demonstrates a maximum power (<inline-formula> <tex-math>$P_{max }$ </tex-math></inline-formula>)/power efficiency (PE) of 30.15 dBm/34.7% at 5.2 GHz. An error vector magnitude (EVM)/power consumption of −38 dB/830 mW is measured at 6.1-GHz and 9-dB BO (dBBO) from <inline-formula> <tex-math>$P_{max }$ </tex-math></inline-formula>, thus meeting MCS13 4096-QAM OFDM Wi-Fi7 requirement. The high-temperature operating life (HTOL) accelerating aging test was performed showing the ability to meet the expected lifetime of the device with only 0.5-dB <inline-formula> <tex-math>$P_{max }$ </tex-math></inline-formula> degradation.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"1964-1974"},"PeriodicalIF":4.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Compact High-Gain D-Band LNA With Lossy Gain-Boosting Core Based on Slow-Wave Feedback 一种基于慢波反馈的紧凑高增益d波段有损增益增强核LNA

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-09 DOI: 10.1109/TMTT.2024.3508775

Yun Qian;Yizhu Shen;Yifan Ding;Xinge Huang;Sanming Hu

{"title":"A Compact High-Gain D-Band LNA With Lossy Gain-Boosting Core Based on Slow-Wave Feedback","authors":"Yun Qian;Yizhu Shen;Yifan Ding;Xinge Huang;Sanming Hu","doi":"10.1109/TMTT.2024.3508775","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3508775","url":null,"abstract":"This article presents a CMOS D-band low-noise amplifier (LNA) employing a lossy gain-boosting core with slow-wave feedback. By accounting for the practical losses of the embedding elements, the proposed lossy gain-boosting core achieves a more reliable and precise maximum available gain (<inline-formula> <tex-math>$G_{mathrm {ma}}$ </tex-math></inline-formula>) than ideal lossless models. Each common-source (CS) stage effectively leverages the gain-boosting core for promoting <inline-formula> <tex-math>$G_{mathrm {ma}}$ </tex-math></inline-formula> while maintaining the unconditional stability of the LNA. Depending on the analysis of two noisy networks in parallel, the gain-boosting core also facilitates simultaneous noise and input matching. Through an in-depth discussion on the impact of the Q-factors of the embedding elements, slow-wave feedback featuring low loss and high characteristic impedance is applied to further promote gain and noise with a compact footprint. To demonstrate the feasibility of the proposed configuration, a three-stage LNA is implemented in a 40-nm bulk CMOS and measured. The fabricated LNA achieves a measured power gain of 18.4 dB, and a minimum in-band noise figure (NF) of 6.1 dB. In addition, the proposed LNA consumes only 17.1 mW of power and occupies a compact core area of 0.057 mm2.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"1912-1923"},"PeriodicalIF":4.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid and Energy-Efficient Microwave Curing of CFRPs Enabled by Holey-Shaped Metasurface Layers 多孔超表面层实现cfrp的快速节能微波固化

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-12-09 DOI: 10.1109/TMTT.2024.3508095

Ebrahim Bagheri-Korani;Karim Mohammadpour-Aghdam;Dragos Dancila;Reza Faraji-Dana

引用次数: 0