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Comments on “An Analytic Series Solution for H-Plane Waveguide T-Junction” 关于 "H 平面波导 T 型结的解析序列解 "的评论
IEEE microwave and wireless technology letters Pub Date : 2024-08-01 DOI: 10.1109/LMWT.2024.3431446
B. Honarbakhsh
{"title":"Comments on “An Analytic Series Solution for H-Plane Waveguide T-Junction”","authors":"B. Honarbakhsh","doi":"10.1109/LMWT.2024.3431446","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3431446","url":null,"abstract":"In the above letter, Park and Eom applied a Fourier-transform technique to the analysis of H-plane parallel-plate T-junction. However, the letter has some incomplete relations, and lacking a fundamental theoretical discussion. Moreover, the proposed solution fails to track edge singularities. This comment aims to apply some corrections and demonstrate the deficiency of the proposed solution.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143758","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 Ka-Band Small-Size Differential Four-Way Wilkinson Power Divider With Multicoupled Inductors 带有多耦合电感器的 Ka 波段小型差分四路威尔金森功率分配器
IEEE microwave and wireless technology letters Pub Date : 2024-08-01 DOI: 10.1109/LMWT.2024.3426618
Gyuha Lee;SeongHwan Cho;Songcheol Hong
{"title":"A Ka-Band Small-Size Differential Four-Way Wilkinson Power Divider With Multicoupled Inductors","authors":"Gyuha Lee;SeongHwan Cho;Songcheol Hong","doi":"10.1109/LMWT.2024.3426618","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3426618","url":null,"abstract":"A compact Ka-band differential four-way Wilkinson power divider (WPD) is presented, in which a \u0000<inline-formula> <tex-math>$lambda $ </tex-math></inline-formula>\u0000/4 differential transmission line (DTL) is implemented with multicoupled inductors (MCIs). The inductors allow the DTL to be small using the mutual inductances and their interwinding capacitances effectively. The divider implemented in a 28-nm RF CMOS process occupies a compact area of 0.07 mm2. It shows low insertion losses of less than 1.31 dB at 24–30 GHz and less than 1.86 dB at 24–40 GHz. The measured isolation between the output ports is higher than 17.2 dB at 24–40 GHz.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143726","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
On the Search of the Coupling Matrix Synthesis Path Through Matrix Decomposition 论通过矩阵分解寻找耦合矩阵合成路径
IEEE microwave and wireless technology letters Pub Date : 2024-07-31 DOI: 10.1109/LMWT.2024.3432666
Lluís Acosta;Ricardo Pampliega;Carlos Caballero;Eloi Guerrero;Jordi Verdú;Pedro de Paco
{"title":"On the Search of the Coupling Matrix Synthesis Path Through Matrix Decomposition","authors":"Lluís Acosta;Ricardo Pampliega;Carlos Caballero;Eloi Guerrero;Jordi Verdú;Pedro de Paco","doi":"10.1109/LMWT.2024.3432666","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3432666","url":null,"abstract":"The synthesis of nonconventional topologies has become the key enabler of next-generation filters. However, the coupling matrix (CM) reconfiguration path of noncanonical forms may become complex and difficult to trace, especially in high-order filters. As a consequence, the synthesis of this kind of networks is usually tackled by means of optimization and numerical interval methods. Although these synthesis methodologies have proven to be effective, for some cases they may take large amounts of time to get to the target topology. This work presents a methodology to extract the reconfiguration path of any target topology once the general transformation matrix is obtained, which is reproducible independently of the transfer function. This enables the option of using the powerful and rapid tool of CM reconfiguration. Moreover, this letter discusses the nonunique solution of a target topology with their reconfiguration path, which is strongly related to the eigenvalues of the network. Two different topologies are used as a vehicle to validate the presented methodology.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143693","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
Modeling of Spectral Regrowth Effects of Passive Intermodulation With Broadband Signal Excitation 宽带信号激励下无源互调的频谱再生效应建模
IEEE microwave and wireless technology letters Pub Date : 2024-07-29 DOI: 10.1109/LMWT.2024.3422493
Junyu Luo;Jinchun Gao;Weiling Zhuang;Ziren Wang
{"title":"Modeling of Spectral Regrowth Effects of Passive Intermodulation With Broadband Signal Excitation","authors":"Junyu Luo;Jinchun Gao;Weiling Zhuang;Ziren Wang","doi":"10.1109/LMWT.2024.3422493","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3422493","url":null,"abstract":"In this letter, a novel broadband passive intermodulation (PIM) model was developed to evaluate the spectral regrowth around PIM signals. This proposed model adopts the frequency division method to divide the PIM products and introduces the modified Gaussian distribution to fit the probability density function (pdf) of the PIM spectrum. Compared with the power division model, the proposed frequency division model can achieve accurate spectral regrowth estimation in a selected channel. Finally, an example of a coaxial connector was selected and a series of broadband PIM tests were conducted to verify the effectiveness of the model.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143759","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
New Outphasing Amplifier Mixed-Mode Modulation Approach for Improving Efficiency and Gain 提高效率和增益的新型外相放大器混合模式调制方法
IEEE microwave and wireless technology letters Pub Date : 2024-07-29 DOI: 10.1109/LMWT.2024.3428837
Weiwei Wang;Shichang Chen;Yixi Tang;Jialin Cai;Giovanni Crupi;Quan Xue
{"title":"New Outphasing Amplifier Mixed-Mode Modulation Approach for Improving Efficiency and Gain","authors":"Weiwei Wang;Shichang Chen;Yixi Tang;Jialin Cai;Giovanni Crupi;Quan Xue","doi":"10.1109/LMWT.2024.3428837","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3428837","url":null,"abstract":"This letter introduces a novel input excitation approach designed to enhance output back-off (OBO) efficiency and gain by incorporating both amplitude and phase modulations for an outphasing power amplifier (OPA). For the first time, a comprehensive mixed-mode modulation approach is presented. To validate the proposed method, a prototype OPA operating at 2.6 GHz is designed as the testing benchmark. Experimental results confirm that the power added efficiency (PAE) at 9 dB OBO point reaches 72.56% under the proposed modulation, achieving an 18.76% improvement over the classic modulation. The gain remains relatively stable, ranging from 10.7 to 12.1 dB across a large OBO range.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143690","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 Quasi-Box-Like Dielectric Filter Sharing a Cavity With Wide Stopband 共享腔体的宽截止带准盒状介质滤波器
IEEE microwave and wireless technology letters Pub Date : 2024-07-29 DOI: 10.1109/LMWT.2024.3427336
Yuchen Yin;Tianle Zhou;Ya Xie;Wei Shen;Qi Zhang;Xiaobei Zhang
{"title":"A Quasi-Box-Like Dielectric Filter Sharing a Cavity With Wide Stopband","authors":"Yuchen Yin;Tianle Zhou;Ya Xie;Wei Shen;Qi Zhang;Xiaobei Zhang","doi":"10.1109/LMWT.2024.3427336","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3427336","url":null,"abstract":"A dielectric filter using a shared cavity with a quasi-box-like topology is proposed. In the shared cavity, four TE101 mode resonators with a dispersive coupling are cascaded to obtain a quasi-ellipse response. A coupling iris is employed to isolate cross coupling and provide source-load coupling based on the absorption effect of dispersive coupling on cross coupling while not on source-load coupling. This design offers a controllable transmission zero (TZ) which extends the stopband up to \u0000<inline-formula> <tex-math>$1.85~f_{mathbf {0}}$ </tex-math></inline-formula>\u0000 with rejection greater than -20 dB. A design example is fabricated and measured. The simulated and the measured results show good consistency for validating the wide out-of-band suppression characteristics of the proposed filter.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143696","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
High Selectivity Wideband Superconducting Filter Design Based on Feed Line Resonator (FLR) Method 基于馈线谐振器 (FLR) 方法的高选择性宽带超导滤波器设计
IEEE microwave and wireless technology letters Pub Date : 2024-07-24 DOI: 10.1109/LMWT.2024.3415074
Xilong Lu;Xueyang Fang;Guangsong Wei;Shigang Zhou;Li Sun;Xudong Bai;Bokai Weng;Yanhong Gao;Dongbo Chen
{"title":"High Selectivity Wideband Superconducting Filter Design Based on Feed Line Resonator (FLR) Method","authors":"Xilong Lu;Xueyang Fang;Guangsong Wei;Shigang Zhou;Li Sun;Xudong Bai;Bokai Weng;Yanhong Gao;Dongbo Chen","doi":"10.1109/LMWT.2024.3415074","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3415074","url":null,"abstract":"This letter presents the new concept and method of feed line resonator (FLR). Unlike the conventional filter feed lines, which serve solely for external coupling, the proposed feed line resonators can not only introduce additional transmission poles within the passband, but also generate transmission zeros at both sides of the passband, thereby significantly augmenting the filter’s performance without enlarging its physical dimensions. A novel and systematic method for constructing multimode resonators, called the connected line resonator (CLR) method has been proposed, two parallel lines are connected to obtain three resonant modes for filter design. The key advantage of this proposed CLR is its ability to exhibit a substantial attenuation slope at the higher band edge. To demonstrate the FLR and CLR method, two wideband filters were designed based on the high-temperature superconducting film, with the center frequency at 7.3 GHz, and the fractional bandwidth of about 59%. The measured results agree well with the simulation ones.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143691","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
Investigation and Modeling of Scalability in ISV and OSV GaN HEMTs ISV 和 OSV GaN HEMT 的可扩展性研究与建模
IEEE microwave and wireless technology letters Pub Date : 2024-07-18 DOI: 10.1109/LMWT.2024.3426087
Haorui Luo;Jiaxin Zheng;Yongxin Guo
{"title":"Investigation and Modeling of Scalability in ISV and OSV GaN HEMTs","authors":"Haorui Luo;Jiaxin Zheng;Yongxin Guo","doi":"10.1109/LMWT.2024.3426087","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3426087","url":null,"abstract":"Internal source via (ISV) and outside source via (OSV) are two common structures of GaN HEMTs. This letter investigates and models the scalability differences in ISV and OSV gallium nitride high electron mobility transistors (GaN HEMTs). This letter provides detailed model parameters for ISV and OSV devices. Based on the extractions, the different scalability rules for ISV and OSV devices are analyzed and modeled. Finally, this letter applies the proposed scaling rules to the Angelov model, showing that the scaled models have excellent accuracy in terms of S-parameter and large-signal behaviors.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143730","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 114–126-GHz Frequency Doubler With >10 dBm Output Power and >12% Efficiency in 45 nm RFSOI 45 纳米 RFSOI 中输出功率大于 10 dBm、效率大于 12% 的 114-126-GHz 倍频器
IEEE microwave and wireless technology letters Pub Date : 2024-07-16 DOI: 10.1109/LMWT.2024.3424729
Mohammadreza Abbasi;Tanya Thapliyal;Syed Mohammad Ashab Uddin;Wooram Lee
{"title":"A 114–126-GHz Frequency Doubler With >10 dBm Output Power and >12% Efficiency in 45 nm RFSOI","authors":"Mohammadreza Abbasi;Tanya Thapliyal;Syed Mohammad Ashab Uddin;Wooram Lee","doi":"10.1109/LMWT.2024.3424729","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3424729","url":null,"abstract":"This letter presents a D-band frequency doubler integrated with a power amplifier to achieve high output power and efficiency in 45 nm RFSOI. The proposed frequency doubler generates a broadband fully differential output by extracting the second-order harmonic from the shared source and drain nodes of a push-push differential pair and amplifying it through a common gate (CG) stage. The power amplifier exploits a novel device, the ADNFET developed by GlobalFoundries, which exhibits improved breakdown voltage for higher output power and efficiency. The fabricated IC integrates the proposed frequency doubler and power amplifier and reports the measured saturation output power greater than 10 dBm (11.7 dBm at 116 GHz) with a peak drain efficiency higher than 12% (15% at 116 GHz) from 114 to 126 GHz.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143688","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 Broadband Low Conversion Loss Single-Ended Resistive Mixer With an Innovative Topology 采用创新拓扑结构的宽带低转换损耗单端电阻式混频器
IEEE microwave and wireless technology letters Pub Date : 2024-07-12 DOI: 10.1109/LMWT.2024.3376714
Tingwei Gong;Zhiqun Cheng;Chao Le;Xuefei Xuan;Bangjie Zheng;Zhiwei Zhang;Minshi Jia
{"title":"A Broadband Low Conversion Loss Single-Ended Resistive Mixer With an Innovative Topology","authors":"Tingwei Gong;Zhiqun Cheng;Chao Le;Xuefei Xuan;Bangjie Zheng;Zhiwei Zhang;Minshi Jia","doi":"10.1109/LMWT.2024.3376714","DOIUrl":"https://doi.org/10.1109/LMWT.2024.3376714","url":null,"abstract":"To achieve better broadband performance and lower conversion loss (CL), a mixer using an innovative mixing unit is proposed in this letter, which contains two gallium arsenide (GaAs) pseudomorphic high electron mobility transistors (pHEMTs) and a coupled capacitor. Leveraging the analysis and the equivalent circuit of the proposed topology, the minimum local oscillator (LO) power (\u0000<inline-formula> <tex-math>$P_{mathrm {LO},min }$ </tex-math></inline-formula>\u0000) and CL of the mixer are deduced and calculated. The analysis concluded that the ratio of the maximum time-varying impedance to the minimum time-varying impedance of the mixing unit maintains a substantial value across a wide frequency band, indicating enhanced broadband characteristics and reduced CL. In addition, based on the proposed topology and analysis, a single-ended mixer with a radio frequency (RF) range of 2–22 GHz and an intermediate frequency (IF) fixed at 100 MHz was implemented using the Sanan 0.15-\u0000<inline-formula> <tex-math>$mu $ </tex-math></inline-formula>\u0000 m GaAs pHEMT process. With a 15-dBm LO power, the test results of this mixer reveal a 10-dB CL and 20-dB isolation within the operating frequency range of 2–22 GHz. The designed single-ended mixer monolithic microwave integrated circuit (MMIC) achieves a fractional bandwidth (FBW) of 166% and occupies a chip area of \u0000<inline-formula> <tex-math>$0.7times 1$ </tex-math></inline-formula>\u0000 mm2.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143733","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
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