IEEE Transactions on Microwave Theory and Techniques最新文献_第7页

Advanced Surrogate-Based EM Optimization Using Complex Frequency Domain EM Simulation-Based Neuro-TF Model for Microwave Components

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-25 DOI: 10.1109/TMTT.2024.3478765

Li Ma;Jing Jin;Xiaolong Li;Wei Liu;Kaixue Ma;Qi-Jun Zhang

{"title":"Advanced Surrogate-Based EM Optimization Using Complex Frequency Domain EM Simulation-Based Neuro-TF Model for Microwave Components","authors":"Li Ma;Jing Jin;Xiaolong Li;Wei Liu;Kaixue Ma;Qi-Jun Zhang","doi":"10.1109/TMTT.2024.3478765","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3478765","url":null,"abstract":"Surrogate-based electromagnetic (EM) optimization techniques have become popular for microwave design. Neuro-transfer function (neuro-TF) is one of the effective surrogates to represent the EM behaviors for design optimization. In this article, we propose an advanced surrogate-based EM optimization using neuro-TF developed by complex frequency domain (CFD)-based EM simulations. For the first time, we develop and introduce the CFD-based EM simulation using fast frequency sweep. We propose a novel transfer function zero/pole extraction technique based on the magnitude of the S-parameter of CFD-based EM simulations. Two-step training process is used for developing the neuro-TF surrogate model with the extracted zero/poles. Using the proposed zero/pole extraction technique, the developed neuro-TF surrogate model can have larger geometrical range than that using vector fitting. Consequently, the surrogate-based EM optimization using neuro-TF developed by CFD-based EM simulation can achieve a speedup over the standard neuro-TF optimization. Two examples of EM optimizations of microwave components are used to demonstrate the proposed technique.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"2309-2319"},"PeriodicalIF":4.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808942","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

An Analog Gain Inflection Predistorter for Combined Back-Off Efficiency and Linearity With Doherty Power Amplifiers 一种结合回退效率和线性度与多尔蒂功率放大器的模拟增益弯曲预失真器

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-24 DOI: 10.1109/TMTT.2024.3477712

Alex Pitt;Mark Beach;Tommaso Cappello

{"title":"An Analog Gain Inflection Predistorter for Combined Back-Off Efficiency and Linearity With Doherty Power Amplifiers","authors":"Alex Pitt;Mark Beach;Tommaso Cappello","doi":"10.1109/TMTT.2024.3477712","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3477712","url":null,"abstract":"In this work, a novel tri-branch Doherty analog predistorter (DAPD) for the linearization of gain inflection within Doherty power amplifiers (DPAs) is demonstrated. This proposed circuit topology features two nonlinear branches, which can follow the amplitude and phase characteristic of a DPA in a reverse manner. The first branch conducts whilst the carrier is active in the low power range, whilst both branches conduct when both the carrier and peaking are active in the high power range. A thorough evaluation of this new topology is provided, where the overall gain and phase characteristics of the circuit are mathematically defined. Analysis is provided on various configurations of the topology, where in each case the ability to accurately predistort the gain and phase nonlinearity associated with carrier compression within a DPA is shown. An accurate DAPD design is then detailed, by means of passive modeling, and the use of measured predistortion characteristics of the candidate DPA to be linearized. Measurements are then provided on the combination of the manufactured DAPD with the candidate DPA, through modulated, continuous-wave, and two-tone signal measurements. When considering an orthogonal frequency division multiplexing (OFDM) waveform with varying bandwidths of 20, 50, and 80 MHz, and varying peak-to-average power ratios (PAPRs) of 8.6, 10, and 11.6 dB, a minimum level of adjacent channel power ratio (ACPR) of −40.9 to −43.5 dBc is observed, over a bandwidth of 2.2–2.6 GHz. A minimum error vector magnitude (EVM) of 1.4%–3.8% is also observed, along with a maximum average efficiency of 59.2%–67.5%.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"167-179"},"PeriodicalIF":4.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938301","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

On Amplitude Modulation in CW Doppler Radars for Remote Displacement Sensing Using ENVSIL Radar

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-22 DOI: 10.1109/TMTT.2024.3470819

Xiaonan Jiang;Xiaohu Wu;Qun Jane Gu;Xiaoguang Liu

{"title":"On Amplitude Modulation in CW Doppler Radars for Remote Displacement Sensing Using ENVSIL Radar","authors":"Xiaonan Jiang;Xiaohu Wu;Qun Jane Gu;Xiaoguang Liu","doi":"10.1109/TMTT.2024.3470819","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3470819","url":null,"abstract":"This article introduces an innovative Doppler radar system designed for remote displacement sensing: the envelope detection and self-injection-locked (ENVSIL) radar system. First, we conduct the theoretical analysis of the amplitude modulation (AM) mechanism in continuous-wave (CW) Doppler radar sensors. Our study reveals that in the presence of transmit (TX)–receive (RX) leakage, target motion can produce an effective AM of the carrier whose relative magnitude can be as large as that of the phase modulation (PM). Theoretical derivation, numerical simulation, and experimental validation are provided with excellent agreement between each other. This theoretical advancement presents new possibilities for radar receiver design employing envelope detectors. Moreover, guided by the AM theory, we develop the ENVSIL system to leverage the complementary relationship between AM and PM for IQ plot construction. The ENVSIL system exhibits notable performance, achieving a root mean square error (RMSE) of 0.66 mm for a 5-cm linear motion and an RMSE of 2.26% when measuring a 4-mm motion displacement at a distance of 2.7 m. The absence of a mixer in this architecture reduces the signal power requirement to 0 dBm, contributing to high power efficiency.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"2425-2439"},"PeriodicalIF":4.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808999","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

Conductivity Measurement Technique for Interface and Surface Using Dielectric Rod Resonator Based on Calibration

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-22 DOI: 10.1109/TMTT.2024.3470768

Cheng Zeng;Yisong Xiong;Xiaoyu Zhang;Li Luo;Junsong Ning;Shirong Bu;Zhanping Wang

{"title":"Conductivity Measurement Technique for Interface and Surface Using Dielectric Rod Resonator Based on Calibration","authors":"Cheng Zeng;Yisong Xiong;Xiaoyu Zhang;Li Luo;Junsong Ning;Shirong Bu;Zhanping Wang","doi":"10.1109/TMTT.2024.3470768","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3470768","url":null,"abstract":"A measurement method for the conductivity of circuit substrate was proposed based on the calibration of dielectric resonator. This method can efficiently measure the conductor deposition interface conductivity (<inline-formula> <tex-math>$sigma _{i}$ </tex-math></inline-formula>) and surface conductivity (<inline-formula> <tex-math>$sigma _{s}$ </tex-math></inline-formula>) of a single sample without prior knowledge of its dielectric constant. After calibration, the influence of the sample’s dielectric slab to the interface conductivity measurement is effectively eliminated. This method allows for efficient conductivity measurement of the interface or surface of a single sample at single frequency or multiple frequencies, in one assembly process. A measurement device was fabricated based on this method. Interface and surface conductivity of four different copper-clad substrates, including Rogers RT/duroid5880 and Rogers RO4350B substrates, were measured. The interface and surface conductivity of four samples were measured using another proposed method, and the maximum deviation between the measured results and the results presented in this article did not exceed 5%. By using resonator multimode measurement, we evaluated the performance of the sample interface conductivity at different frequencies during 11.5–26.5 GHz. This technique holds the potential in facilitating the development and practical application of new materials.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"2345-2355"},"PeriodicalIF":4.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809002","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

Improved Single Target Calibration Technique for Polarimetric Radars

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-18 DOI: 10.1109/TMTT.2024.3473614

Kamal Sarabandi;Adib Y. Nashashibi;Mani Kashanianfard;Hussein N. Shaman

{"title":"Improved Single Target Calibration Technique for Polarimetric Radars","authors":"Kamal Sarabandi;Adib Y. Nashashibi;Mani Kashanianfard;Hussein N. Shaman","doi":"10.1109/TMTT.2024.3473614","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3473614","url":null,"abstract":"In this article, an algorithm for calibrating polarimetric radar systems that ensures accurate measurements of complex scattering matrices of point targets in the backscatter direction is presented. In this approach, only a single target, namely, a metallic sphere, is needed as the calibration target, which significantly simplifies the calibration procedure and improves the accuracy. The error model for the polarimetric radar is based on an exact physics-based channel model for radars with dual-channel passive single antennas (Sarabandi and Ulaby, 1990). This article improves upon (Sarabandi and Ulaby, 1990) by allowing the crosstalk distortion matrices for the transmit and receive antennas to be different, thereby enabling polarimetric calibration of monostatic polarimetric radars with different transmit and receive antennas. The closed-form expressions for the calibrated elements of the scattering matrix of the unknown target in terms of the uncalibrated (measured) scattering matrices of both the unknown target and the calibration sphere are derived. The proposed calibration algorithm is validated experimentally using three different polarimetric radar systems operating at X-, W-, and J-bands and using different point targets with known scattering matrices. Excellent agreements between the measurements and the expected theoretical/numerical results are demonstrated.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"2356-2365"},"PeriodicalIF":4.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809001","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

Glass-Based Single-Layer Slow Wave SIW Filter With Embedded Composite Right-/ Left-Handed Resonator

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-15 DOI: 10.1109/TMTT.2024.3440250

Wenlei Li;Jihua Zhang;Zhihua Tao;Libin Gao;Hongwei Chen;Lingyue Wang;Lei Zhao;Xingzhou Cai;Yong Li;Dongbin Wang;Shuang Li;Ting Liu;Wanli Zhang

{"title":"Glass-Based Single-Layer Slow Wave SIW Filter With Embedded Composite Right-/ Left-Handed Resonator","authors":"Wenlei Li;Jihua Zhang;Zhihua Tao;Libin Gao;Hongwei Chen;Lingyue Wang;Lei Zhao;Xingzhou Cai;Yong Li;Dongbin Wang;Shuang Li;Ting Liu;Wanli Zhang","doi":"10.1109/TMTT.2024.3440250","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3440250","url":null,"abstract":"This article presents a composite right-/left-handed (CRLH) loaded slow wave substrate integrated waveguide (SW-SIW) filter using through glass via (TGV) technology. The proposed glass-based topology integrates via holes and blind holes in a single-layer substrate, enabling the achievement of the SW effect. This miniaturization strategy can be flexibly combined with other miniaturization technologies. The size of the holes prepared using TGV technique is one-tenth that of printed circuit board (PCB), allowing glass substrate to be more competitive in millimeter-wave band. The propagation properties of glass-based SW-SIW are revealed first, and the designed third-order filter realizes more than 53% size reduction compared to conventional SIW cavity configuration. Subsequently, the CRLH resonator embedded in SW-SIW exhibits phase characteristics opposite to conventional parallel LC unit. Besides, the SW-CRLH resonator can facilitate the realization of fourth-order filtering function without enlarging the packaging size of the initial third-order filter. Furthermore, the glass-based filter with elliptic function response can achieve independent tuning of transmission zeros (TZs). As a prototype, a fourth-order millimeter-wave filter is designed, fabricated, and measured. The experimental results confirm the advancement of the manufacturing process and the feasibility of the miniaturization strategy.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 2","pages":"1105-1116"},"PeriodicalIF":4.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361403","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

Design and Extensive NPR Characterization of a Highly Linear SatCom GaN MMIC Doherty PA 高线性卫星通信GaN MMIC Doherty PA的设计和广泛NPR特性

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-15 DOI: 10.1109/TMTT.2024.3474092

Anna Piacibello;Ricardo Figueiredo;Roberto Quaglia;Rocco Giofrè;Paolo Colantonio;Nuno Borges Carvalho;Vittorio Camarchia

{"title":"Design and Extensive NPR Characterization of a Highly Linear SatCom GaN MMIC Doherty PA","authors":"Anna Piacibello;Ricardo Figueiredo;Roberto Quaglia;Rocco Giofrè;Paolo Colantonio;Nuno Borges Carvalho;Vittorio Camarchia","doi":"10.1109/TMTT.2024.3474092","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3474092","url":null,"abstract":"This article presents the design strategy and extensive noise-to-power ratio (NPR)-focused characterization of a state-of-the-art Doherty power amplifier (DPA) for satellite applications in the Ka-band downlink (17.3–20.3 GHz), fabricated using a commercial 100-nm GaN-Si high electron mobility transistor technology. The design aims for high gain and good intrinsic linearity over a 3-GHz bandwidth by adopting an amplifying chain with limited phase distortion and a Doherty combiner designed to compensate for this residual phase distortion and by optimizing the baseband impedance. Single-tone experimental characterization of the fabricated chip shows that it maintains an output power of 36 dBm with a power-added efficiency (PAE) of 30% across the entire band. The linearity characterization explores the effects of signal statistics and nonlinear dynamics on NPR and discusses critical aspects concerning the comparability of different measurements. Modulations with instantaneous bandwidths up to a record of 2.9 GHz are explored, under which the Doherty PA is able to maintain PAE of at least 25% at 15-dB NPR. This demonstrates the amplifier’s excellent linearity, achieving state-of-the-art performance among integrated power amplifiers (PAs) for satellite communications.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"156-166"},"PeriodicalIF":4.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10718724","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of a 60-GHz Joint Radar–Communication Transceiver With a Highly Reused Architecture Utilizing Reconfigurable Dual-Mode Gilbert Cells 基于可重构双模吉尔伯特单元的60 ghz联合雷达通信收发器设计

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-14 DOI: 10.1109/TMTT.2024.3472268

Lin Lu;Xujun Ma;Jing Feng;Long He;Xuewei Fan;Qin Chen;Xin Chen;Xuan Wang;Yiyang Wang;Zhiqiang Liu;Xiangning Fan;Lianming Li

{"title":"Design of a 60-GHz Joint Radar–Communication Transceiver With a Highly Reused Architecture Utilizing Reconfigurable Dual-Mode Gilbert Cells","authors":"Lin Lu;Xujun Ma;Jing Feng;Long He;Xuewei Fan;Qin Chen;Xin Chen;Xuan Wang;Yiyang Wang;Zhiqiang Liu;Xiangning Fan;Lianming Li","doi":"10.1109/TMTT.2024.3472268","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3472268","url":null,"abstract":"A 60-GHz joint radar-communication (JRC) transceiver is presented in this article. To achieve a compact JRC transceiver architecture with highly reused RF modules, a dedicated reconfigurable dual-mode Gilbert cell is proposed. Specifically, in the communication mode, the dual-mode Gilbert cells operate as conventional upconversion mixers to modulate the baseband (BB) communication data, while it could also be configured as an amplifier to strengthen the LO signal in the radar mode. Compared with the quadrature IF chirp modulation scheme in which the chirp bandwidth is constrained by the narrowband IF devices, in this work, a wideband chirp generated directly from the LO chain could be applied for radar sensing, significantly improving the range resolution in the radar mode. Besides, the direct RF dechirping could also relieve the hardware burden during radar signal processing compared with the digital dechirping utilized in the IF chirp modulation scheme. Fabricated in a 65-nm CMOS process, this JRC transceiver realizes an ultracompact chip size, and a 16-dBm saturated TX output power, an 11-dBm OP1 dB, and a 5.8-dB minimum RX noise figure (NF) are also achieved. Experiments demonstrate that the proposed JRC transceiver supports >4-GHz transmitted chirp bandwidth with <3.75-cm> <tex-math>$mu $ </tex-math></inline-formula>\u0000m displacement is successfully detected. Besides, a >7-Gb/s data rate in the 16-QAM over-the-air (OTA) communication is also demonstrated.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"245-257"},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938233","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

Modified Ito Generalization of the Hermite Polynomials for the Linearization of Radio Over Fiber Links With Increased Numerical Stability

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-14 DOI: 10.1109/TMTT.2024.3459829

Long Huang;Zheng Dai;Jianping Yao

{"title":"Modified Ito Generalization of the Hermite Polynomials for the Linearization of Radio Over Fiber Links With Increased Numerical Stability","authors":"Long Huang;Zheng Dai;Jianping Yao","doi":"10.1109/TMTT.2024.3459829","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3459829","url":null,"abstract":"Nonlinearity is a main impairment for radio over fiber (RoF) link as it can severely degrade the signal quality and limit the overall system performance. Digital predistortion (DPD) is an effective technique to linearize an RoF link. In a DPD technique, polynomials are used to model a nonlinear RoF link. However, a conventional polynomial model exhibits numerical instabilities. In this article, we introduce a novel set of orthogonal polynomials based on the modified Ito generalization of the Hermite polynomials to improve the numerical stability. Compared with other orthogonal polynomials, the proposed orthogonal polynomials have two additional advantages. First, the proposed polynomials are orthogonal for an input signal with complex Gaussian distribution. Second, the proposed orthogonal polynomials can be applied to a RoF link for multiband signal transmission. An experiment is performed to evaluate the performance of the proposed approach. Two 100 MHz orthogonal frequency division multiplexing (OFDM) signals at 1.6 and 2.4 GHz are transmitted over a RoF link in which an electro-absorption modulated laser (EML) is employed to perform signal modulation. The experimental results show that a RoF link employing the proposed orthogonal polynomials has a better performance than using the conventional polynomials in terms of error vector magnitude (EVM) and spectral regrowth suppression.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 3","pages":"1752-1760"},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564026","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 460-GHz Receiver Using Second-Order Subharmonic Mixer in 65-nm CMOS

IF 4.1 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2024-10-14 DOI: 10.1109/TMTT.2024.3471676

Hao Guo;Kaizhe Guo;Zhicheng Lin;Kam Man Shum;Ka Fai Chan;Chi Hou Chan

{"title":"A 460-GHz Receiver Using Second-Order Subharmonic Mixer in 65-nm CMOS","authors":"Hao Guo;Kaizhe Guo;Zhicheng Lin;Kam Man Shum;Ka Fai Chan;Chi Hou Chan","doi":"10.1109/TMTT.2024.3471676","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3471676","url":null,"abstract":"This article presents a 460-GHz receiver using a second-order subharmonic mixer (SHM) in a 65-nm CMOS technology. The 460-GHz differential RF to a 60-GHz differential intermediate frequency (IF) second-order SHM is based on a single-balanced topology using a single-ended local oscillator (LO). Proper impedances are provided to the SHM at <inline-formula> <tex-math>$f_{text {RF}} - f_{text {LO}}$ </tex-math></inline-formula> and <inline-formula> <tex-math>$2f_{text {LO}}$ </tex-math></inline-formula> to avoid the adverse effects of the spurious mixing product and LO harmonic on the mixer performance. A breakout of the SHM integrated with a <inline-formula> <tex-math>$times 2$ </tex-math></inline-formula> LO multiplier chain results in a peak conversion gain (CG) of −18.1 dB at 460 GHz. A 3-dB bandwidth of 16 GHz is also achieved with an externally applied 100-GHz LO signal. By integrating a differential on-chip patch antenna in the receiver, no lossy balun is required in the RF path. The 460-GHz receiver achieves a measured noise figure (NF) of 26 dB at 460 GHz, including the loss of the on-chip patch antenna. The 3-dB bandwidth of the CG is 6.5 GHz when fixing the LO frequency. Compared with the state-of-the-art silicon receivers above 400 GHz, this work achieves excellent NF and bandwidth.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"2440-2452"},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809000","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