Article
Engineering, Electrical & Electronic
Abhishek Sahu, John Fendrich, Peter H. Aaen
Summary: To fully utilize pyramid probe cards in high-throughput acoustic filter testing, accurate characterization and deembedding techniques are required. This article presents a systematic design procedure for an on-wafer short-open-load-thru (SOLT) calibration kit on lithium niobate substrates for filter measurements using pyramid probe cards. The effectiveness of the on-wafer calibration is validated by performing repeatable measurements of state-of-the-art filters fabricated on lithium niobate substrate and comparing with other calibration approaches.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Zhenxiang Yi, Chuxi Wang
Summary: A noninvasive glucose sensor using defective ground-structure (DGS) coplanar waveguide (CPW) transmission line is proposed, which operates as a microwave resonator affected by glucose concentration. The fabricated DGS sensor with a size of 22 x 12 mm and a 3-D printed sample holder demonstrates a frequency sensitivity of about 1.852 x 10(-5) GHz/(mg/dL) and an amplitude sensitivity close to 6.54 x 10(-4) dB/(mg/dL). By repeating the array structure five times, the sensitivity is improved to a frequency sensitivity of 3.9 x 10(-6) GHz/(mg/dL) and an amplitude sensitivity of 5 x 10(-3) dB/(mg/dL). The proposed sensor may have promising applications in human health monitoring in the future.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Liang Liu, Yang Yang, Chuan Yu, Shifeng Li, Hao Wu, Limin Sun, Fanbao Meng
Summary: A W-band slot array antenna based on a substrate integrated waveguide (SIW) for microwave power transmission (MPT) is proposed in this paper. The compact arrangement of the antenna elements improves the aperture efficiency and enables easy integration into large-scale arrays. Test results demonstrate that the antenna performs well and can be applied as a rectenna in MPT systems.
Article
Engineering, Electrical & Electronic
Mohammad Hossein Amini, Zahra Davoodi-Rad, Amirhossein Ghasemi, Mohsen Khaliliy, Alireza Mallahzadeh
Summary: This article investigates the current density distribution and kinetic inductance in superconducting coplanar waveguides (SCPWs). By mapping CPW to parallel plates and utilizing Green's function and London's second equation, an integral equation is formed to obtain the current density distribution. The procedure is verified using COMSOL Multiphysics software, and the results show that as the gap is reduced, the SCPW experiences a significant increase in current density especially at the edges. The article also evaluates the kinetic inductance of CPWs with different aspect ratios, finding that the kinetic inductance decreases as the ratio increases.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2022)
Article
Engineering, Electrical & Electronic
Pau Casacuberta, Paris Velez, Jonathan Munoz-Enano, Lijuan Su, Ferran Martin
Summary: This article introduces a small-sized and highly sensitive planar microwave permittivity sensor based on weakly coupled step-impedance resonators (SIRs). The sensor is a one-port structure implemented in coplanar waveguide technology and operates in the reflection mode. The sensor detects changes in the dielectric constant of the material under test by measuring the variation in the phase of the reflection coefficient at the operating frequency.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Computer Science, Information Systems
Xingye Fan, Ruozhou Li, Jing Yan, Yuming Fang, Ying Yu
Summary: This study demonstrates a tunable stepped-impedance resonator using liquid crystal, with two resonant frequencies that can be continuously tuned by external voltages. The device achieves wide tunable ranges at a low driving voltage, showing good agreement with simulation results. It also has low insertion loss and high return losses, providing a new protocol for tunable frequency in communication systems.
FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Chuan-Min Wang, Weiqiang Xu, Lin Li, Haiwen Liu, Ye Kuang
Summary: To reduce transversal width, a new spoof surface plasmon polariton (SSPP) based on coplanar waveguide (CPW) is proposed. By using capacitor loading technique to control the dispersion characteristics and electromagnetic field, the proposed capacitor-loaded CPW SSPP exhibit a similar transmission performance to conventional unloaded CPW SSPP TL, but with a transversal width reduction up to 64%. On this basis, another modified capacitor-loaded CPW SSPP is presented by changing the groove shape from strip-shape to T-shape. Results validate that the transversal width of the T-shape CPW SSPP is only 24% to that of conventional unloaded CPW SSPP. Besides, much more tighter field confinement is achieved for both the two proposed CPW SSPPs. Such results are of great significance to reduce the size of plasmon devices in microwave regime.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Physics, Multidisciplinary
Md Mottahir Alam, Rezaul Azim, Ibrahim Mustafa Mehedi, Asif Irshad Khan
Summary: This paper presents a CPW-fed small antenna designed to operate over an ultra-wide frequency band for portable communication devices. The antenna features a simple design, small size, good gain and efficiency, stable radiation characteristics, and good time-domain behavior, making it a potential candidate for use in portable communication devices.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Jian-Kang Xiao, Xian-Qing Liu, Jia-Xing Guo
Summary: In this article, a wideband antenna is implemented using a multilayer self-packaged suspended coplanar waveguide (SCPW). The lower air cavity of the SCPW serves as both the antenna suspending and reflecting structure, which can be expanded by copper coating on the periphery of the multidielectric substrates, effectively improving the antenna radiation and gain without increasing the antenna profile. An additional patch is introduced to generate more resonances, significantly extending the antenna bandwidth. The designed SCPW antenna operates at 5.42 GHz with a fractional bandwidth of 26.2% (4.71-6.13 GHz) and a maximum gain of 8.4 dBi. Fabrication and measurement of the SCPW antenna demonstrate its advantages of self-packaging, wideband capability, favorable gain, low profile, and miniature circuit size.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2023)
Article
Chemistry, Analytical
Wenfei Yin, Shaoxiang Chen, Junjie Chang, Chunhua Li, Salam K. Khamas
Summary: The paper introduces an extremely compact MIMO antenna for portable wireless UWB applications, with high isolation and a wide bandwidth. By optimizing the arrangement and design of antenna elements, polarization diversity is achieved, and impedance matching is ensured at high frequencies.
Article
Computer Science, Information Systems
Yuyu Zhao, Jun Dong, Fan Yin, Xinchun Fang, Ke Xiao
Summary: This article introduces a novel transition between coplanar waveguide (CPW) and air-filled rectangular waveguide (RWG), which broadens the bandwidth. The design does not require intermediate transition or air-bridges, and the planar circuit can be designed with high- and low-permittivity materials, offering more benefits in both PCB and MMIC design. Measurement results agree well with simulation results, validating the feasibility of this design.
Article
Engineering, Electrical & Electronic
Jianxing Li, Kai-Da Xu, Junwei Shi, Ying-Jiang Guo, Anxue Zhang
Summary: A coplanar waveguide based spoof surface plasmon polariton waveguide is proposed with strong field confinement and low-pass filtering response. Slot resonators are used to introduce a notch in the passband, and PIN diodes are added for dynamic switchability. Simulation and measurement results show good agreement.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2021)
Article
Physics, Applied
S. Valles-Sanclemente, S. L. M. van der Meer, M. Finkel, N. Muthusubramanian, M. Beekman, H. Ali, J. F. Marques, C. Zachariadis, H. M. Veen, T. Stavenga, N. Haider, L. DiCarlo
Summary: This paper presents a method that uses a set of airbridges to trim the frequency of microwave coplanar-waveguide (CPW) resonators post-fabrication. The method is compatible with conventional CPW airbridges and crossovers, and it increases device yield by compensating for design and fabrication uncertainty with 100 MHz range and 10 MHz resolution. Two applications in circuit QED are showcased: elimination of frequency collisions between resonators for different transmons by frequency-division multiplexing, and frequency matching of readout and Purcell-filter resonator pairs. The combination of matching and transmon frequency trimming achieves fast and high-fidelity readout across 17-transmon quantum processors.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Mohamed Najah, Serge Ecoffey, Tejinder Singh, Mark Ferguson, Louis-Philippe Roby, Jacques Renaud, Paul Gondcharton, Frederic A. Banville, Mohamed Boucherit, Serge A. Charlebois, Luc G. Frechette, Raafat R. Mansour, Francois Boone
Summary: This paper discusses the integration and wafer-level packaging of an Au-Ru/AlCu contact in a MEMS fabrication process through Al-Ge eutectic bonding. The contact configuration shows good return loss and isolation, and withstands 3 million hot switching cycles. However, the contact fails due to an increase in electrical resistance caused by Au hillocking.
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2022)
Article
Computer Science, Hardware & Architecture
Seyyed Mehdi Mirebrahimi, Massoud Dousti, Saeid Afrang
Summary: This paper reviews the widely used filters based on DGS in RF systems over the past two decades, with a focus on tunable filters based on CPW with DGS. These filters can be easily implemented using CPW lines with coplanar elements realization, requiring no via holes and having less radiation loss compared to other types of lines.
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
(2021)
Article
Engineering, Manufacturing
Arghya Sain, Kathleen L. Melde
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2016)
Article
Engineering, Electrical & Electronic
Prabhat Baniya, Aimeric Bisognin, Kathleen L. Melde, Cyril Luxey
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2018)
Article
Engineering, Manufacturing
Prabhat Baniya, Sungjong Yoo, Kathleen L. Melde, Aimeric Bisognin, Cyril Luxey
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2018)
Article
Engineering, Electrical & Electronic
Ho-Hsin Yeh, Nobuki Hiramatsu, Kathleen L. Melde
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2013)
Article
Engineering, Electrical & Electronic
Sungjong Yoo, Kathleen L. Melde
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2013)
Editorial Material
Engineering, Electrical & Electronic
Jennifer Bernhard, Ernst Bonek, Christos G. Christodoulou, David Kunkee, Kathleen L. Melde
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2014)
Article
Optics
Christin Lundgren, Rene Lopez, Joan Redwing, Kathleen Melde
Article
Engineering, Electrical & Electronic
Prabhat Baniya, Kathleen L. Melde
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2019)
Article
Computer Science, Information Systems
Byul Hur, William R. Eisenstadt, Kathleen L. Melde
Proceedings Paper
Telecommunications
Prabhat Baniya, Kathleen L. Melde
Summary: Switched beam horn arrays based on SIW technology at 60 GHz are designed for chip-to-chip communications, enabling each chip to communicate with its eight surrounding neighbors. However, interference may occur due to the side and back lobes of the element radiation pattern. The wireless links are analyzed using measured and simulated transmission coefficients in both LoS and NLoS directions.
2021 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Prabhat Baniya, Kathleen L. Melde
Summary: The study presents a link model of switched beam horn arrays at 60 GHz based on the substrate integrated waveguide (SIW) technology, with 360 degrees angular coverage and eight identical printed horn elements in each array, capable of producing eight endfire beams in the horizontal plane. Through measuring and simulating the over-the-air (OTA) transmission coefficients between two arrays, accuracy of the transmission model is improved by determining the phase centers (PCs) of the excited elements and incorporating them in the Friis equation.
2021 UNITED STATES NATIONAL COMMITTEE OF URSI NATIONAL RADIO SCIENCE MEETING (USNC-URSI NRSM)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Prabhat Baniya, Kathleen L. Melde
2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Kathleen L. Melde, Sungjong Yoo, Ho-Hsin Yeh
2015 9th European Conference on Antennas and Propagation (EuCAP)
(2015)
Proceedings Paper
Computer Science, Theory & Methods
Marcos A. Vargas, Kathleen L. Melde
2013 IEEE 22ND CONFERENCE ON ELECTRICAL PERFORMANCE OF ELECTRONIC PACKAGING AND SYSTEMS (EPEPS)
(2013)
Proceedings Paper
Engineering, Electrical & Electronic
Priyank Gupta, Ali Akoglu, Kathleen Melde, Janet Roveda
2013 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
(2013)