IEEE Transactions on Microwave Theory and Techniques最新文献

{"title":"Glass Microwave Microfluidic Devices for Broadband Characterization of Diverse Fluids","authors":"Jacob T. Pawlik;Tomasz Karpisz;Yasaman Kazemipour;Nicholas Derimow;Sarah R. Evans;Bryan T. Bosworth;James C. Booth;Nathan D. Orloff;Christian J. Long;Angela C. Stelson","doi":"10.1109/TMTT.2024.3491653","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3491653","url":null,"abstract":"We demonstrate a glass microwave microfluidic device for determining the permittivity of a wide range of liquid chemicals from 100 MHz to 30 GHz with associated uncertainties. Conventional microwave microfluidic devices use polymer-based microfluidic layers for fluid delivery, but these polymers swell in organic solvents and are not suitable for many applications. Our device incorporates glass microfluidic channels with platinum coplanar waveguides (CPWs) to provide a solvent-resistant architecture for broadband dielectric spectroscopy. We utilize broadband scattering parameter measurements with a vector network analyzer (VNA) on a wafer probing station and multiline thru-reflect–line (mTRL) calibrations to extract the distributed circuit parameters of transmission lines and solve for fluid permittivity. In this work, we demonstrate the utility of the device by measuring the permittivity of four organic solvents difficult to measure otherwise: hexane, heptane, decane, and toluene.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"258-265"},"PeriodicalIF":4.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937878","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}

{"title":"A 28/37-GHz Frequency-Reconfigurable Dual-Band 1-Channel Front-End IC for 5G Communication Radios","authors":"Jaehun Lee;Hyoungkyu Jin;Gyuha Lee;Eun-Taek Sung;Songcheol Hong","doi":"10.1109/TMTT.2024.3483454","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3483454","url":null,"abstract":"This article presents a 28/37-GHz frequency-reconfigurable dual-band beamforming 1-channel front-end integrated circuit (IC) for fifth-generation (5G) communication. The proposed IC integrates frequency-reconfigurable variable-gain phase shifters (VGPSs) in the transmitter (TX) and receiver (RX) paths. The VGPS enables gain and phase controls with a single block in the dual-frequency bands using an active vector modulator including the proposed frequency-reconfigurable I/Q generator. A frequency-reconfigurable power amplifier with optimal performance at dual bands that uses reconfigurable transformers at the output and interstage matching networks is introduced. A dual-band variable-gain low-noise amplifier (LNA) is also introduced, utilizing a combined structure of a high-k input transformer and a differential common-gate (CG) for simultaneous noise and input matching at the dual bands. The dual-band switches for the antenna and channel show high isolation and low-noise-figure (NF) degradation at dual bands. Thanks to the proposed frequency-reconfigurable VGPS, rms phase errors of 0.9° and 0.62° are achieved at 28 and 37 GHz, respectively, with 6-bit phase control resolution. The rms gain errors of 0.22 and 0.23 dB are achieved at 28 and 37 GHz, respectively, with 4-bit gain control resolution. The front-end IC achieves 13.5- and 13.5-dBm TX output 1-dB compression points and 15.5% and 14.1% TX efficiencies at 28 and 37 GHz, respectively. It also achieves 4.4- and 4.9-dB RX NFs at 28 and 37 GHz, respectively. The front-end IC is tested under 200-MHz 64-quadrature amplitude modulation (QAM) 5G new radio (NR) signals with a 7.62-dB peak-to-average power ratio. It delivers 9.3- and 8.6-dBm average output power at 28 and 37 GHz, respectively.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"1882-1895"},"PeriodicalIF":4.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800946","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}

{"title":"Design of Quasic-Elliptic Bandpass Filter and Diplexer Using Inverted-L-Shape Coaxial Resonator for Realization of Electromagnetic Mixed Coupling","authors":"Chao Wu;Sai-Wai Wong","doi":"10.1109/TMTT.2024.3486928","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3486928","url":null,"abstract":"Electromagnetic (EM) mixed coupling creates transmission zero (TZ) either at lower or upper stopband of bandpass filter (BPF) with inline configuration of resonators. This is a very attractive feature for designing quasic-elliptic BPF. However, traditional mixed coupling needs extra complicated coupling structure among two resonators which increase the design complexity, larger the circuit size and higher the tooling cost. This study proposes a very simple design approach of mixed coupling without the need for additional dedicated coupling components. An inverted-L-shape resonator (ILSR) is proposed for this purpose. By only properly arranging the orientation of two ILSRs, mixed coupling can be effectively controlled and thus arbitrarily places TZ either at lower or upper stopband. This feature facilitates the realization of quasic-elliptic BPF response with high selectivity and inline filter configuration. It is noteworthy that for an Nth-order filter, it is possible to attain a maximum of <inline-formula> <tex-math>$N -1$ </tex-math></inline-formula> finite TZs. For rapid prototyping and experimental demonstration, a fourth-order BPF and a third-order diplexer were designed and fabricated using additive manufacturing 3-D printing technology. Results indicate excellent agreement between all test outcomes and simulation results, thereby validating the proposed methodology.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 4","pages":"2183-2194"},"PeriodicalIF":4.1,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808927","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}

{"title":"Connect. Support. Inspire.","authors":"","doi":"10.1109/TMTT.2024.3489515","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3489515","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 11","pages":"6790-6790"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10747072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600130","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}

{"title":"Blank Page","authors":"","doi":"10.1109/TMTT.2024.3488633","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3488633","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 11","pages":"C4-C4"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10747146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600224","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}

{"title":"IEEE Open Access Publishing","authors":"","doi":"10.1109/TMTT.2024.3489513","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3489513","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 11","pages":"6792-6792"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10747070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600225","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}

{"title":"IEEE Transactions on Microwave Theory and Techniques Publication Information","authors":"","doi":"10.1109/TMTT.2024.3488637","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3488637","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 11","pages":"C2-C2"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10747073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595920","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}

{"title":"Rigorous Approach to Coupling Matrix Synthesis Problem With Arbitrary Topology","authors":"Seungjun Lee;Jongheun Lee;Juseop Lee","doi":"10.1109/TMTT.2024.3481877","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3481877","url":null,"abstract":"This work presents a mathematical procedure for solving coupling matrix synthesis problems with arbitrary topologies. A discussion on the properties of arbitrary response-preserving similarity transformations is provided. Based on this property, the proposed method rigorously addresses every possible coupling matrix complying with a desired target topology. This method applies to arbitrary target topologies, both redundant and non-redundant. In cases where there are an infinite number of solutions, this procedure yields a parameterized equation representing all such solutions.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"335-351"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938227","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}

{"title":"Design and Analysis of Complex Neutralization Gain-Boosting Technique With Low-Loss Power Combining for Efficient, Linear D-Band Power Amplifiers","authors":"Mohamed Eleraky;Tzu-Yuan Huang;Yuqi Liu;Hua Wang","doi":"10.1109/TMTT.2024.3486585","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3486585","url":null,"abstract":"This article introduces a comprehensive design and optimization approach aimed at significantly improving the power gain of a given device to achieve the theoretical maximum stable power gain, denoted as \u0000<inline-formula> <tex-math>$4U$ </tex-math></inline-formula>\u0000 (with U representing Mason’s Unilateral power gain), across a wide bandwidth. To evaluate the wideband gain enhancement of the device, a device-level Gain-Bandwidth Product (GBW) metric is presented. The proposed technique leverages a high-order embedding network, specifically complex neutralization, applied to a differential power device pair. The detailed optimization process is presented alongside theoretical modeling. To address the limited output power at the D-band, a highly efficient power-combining network is co-designed with the output-matching network of the power amplifier (PA). To validate the proposed methodology, a D-band three-stage PA with two-way power combining was implemented using the GlobalFoundries 45-nm SOI process. The amplifier occupies a compact active area of \u0000<inline-formula> <tex-math>$0.116~text {mm}^{2}$ </tex-math></inline-formula>\u0000. Small-signal measurements demonstrate a peak power gain of 21.7- and a 3-dB bandwidth (BW) of 15 GHz, covering the frequency range from 117 to 132 GHz. The enhanced power gain enables the PA drivers to operate efficiently and linearly in class-AB biasing mode at 127.5 GHz, delivering a saturated output power (\u0000<inline-formula> <tex-math>$P_{text {sat}}$ </tex-math></inline-formula>\u0000) of 11.9 dBm, output power at 1 dB compression point (\u0000<inline-formula> <tex-math>$text {OP}_{1,text {dB}}$ </tex-math></inline-formula>\u0000) of 11.85 dBm, and a peak power-added efficiency (PAE) of 15%. This allows the PA to achieve an average output power of 7.1 (5.9) dBm under 64-QAM (128-QAM) modulation with a data rate of 27 (16.8) Gb/s. The PA shows an average modulation efficiency of 6.9% (5.15%) with an rms error vector magnitude (\u0000<inline-formula> <tex-math>$text {EVM}_{text {rms}}$ </tex-math></inline-formula>\u0000) better than −24.8 (−25.7) dB.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"195-205"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938228","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}

{"title":"Introducing IEEE Collabratex","authors":"","doi":"10.1109/TMTT.2024.3489517","DOIUrl":"https://doi.org/10.1109/TMTT.2024.3489517","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 11","pages":"6791-6791"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10747071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600128","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}