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?? Stay updated on the latest issue of the IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJ-UFFC)! Click “Add Title To My Alerts” at the top of the publication page on IEEE Xplore and never miss a new issue. ??Read the latest issue of the IEEE OJ-UFFC: https://loom.ly/IzwHIOc #IEEE #UFFC #OJUFFC #IEEEXplore

The ELEDIA Research Center is pleased to announce that a new paper has been published in the IEEE Antennas and Wireless Propagation Letters (AWPL): G. Oliveri, G. Gottardi, F. Zardi and A. Massa, "On the Synthesis of Multibit Reconfigurable Passive Skins for Smart EM Environments," in IEEE Antennas and Wireless Propagation Letters, vol. 23, no. 11, pp. 3774-3778, Nov. 2024, doi: 10.1109/LAWP.2024.3428318. The paper can be downloaded at the following link: https://lnkd.in/d-nqW2UM --- #ELEDIA #research #metasurfaces #nextgeneration #wireless #smart #electromagnetics #skins #SEME

GaN-on-Si high-electron-mobility transistors have emerged as the next generation of high-powered and cost-effective microwave devices. In this work, a GaN-on-insulator (GNOI) structure is proposed to enhance the heat dissipation ability of a GaN-on-Si HEMT. Electrothermal simulation was carried out to analyze the thermal performance of the GNOI-on-Si HEMTs with different insulator dielectrics, including SiO2, SiC, AlN, and diamond. Read more: https://lnkd.in/dnhyJ9ec #GaN #semiconductor #research

During their research of alternatives to the current state-of-the-art optical atomic clocks operating at several hundreds of terahertz, IMRA researchers encountered the common issue of standing waves, also referred to as signal reflections or mismatches. These undesirable waves, or ripples, can attenuate power output, distort the information on the carrier and, in extreme cases, damage internal components. To alleviate the problem of standing waves at lower microwave frequencies, engineers rely on Faraday rotation isolators – more commonly referred to simply as isolators. The problem is that traditional isolators have very high insertion loss at higher frequencies within the THz regime, making them unsuitable for most systems. Read more about how IMRA was able to overcome this common issue with our #mmWave isolators: https://lnkd.in/gtFm-Nk5 #mmWave #THzTechnology #innovationintech #MicroHarmonics #techsolutions

In this study, the authors investigated seven different types of antennas: #Conventional #Coplanar #Vivaldi #Antenna (#C-#CVA), #CVA-#Short #Slot and #Long-#Slot (#CVA-#SS and #CVA-#LS) with antenna lengths of 10 and 15 cm, #wave #CVA (#WCVA), and WCVA with CSRR. In all frequency bands ranging from 2.3 to more than 30 GHz, the?S11 of the CVA-SS antenna is less than ?15 dB with minimum?S11 of ?62.21 dB. When compared to the CVA-LS without a corrugated construction, the WCVA-SS antenna has 5.77 dBi improvement of directivity at 15 GHz. By incorporating the #Square-#Complimentary #Split #Ring #Resonator (#S-#CSRR) structure into WCVA, four notched frequency bands are formed: 3.335–3.72 GHz (WiMAX spectrum), 4.72 - 5.354 GHz (WLAN), 6.07–6.743 GHz (Wifi 6E usage), and 7.408–8.293 GHz (X-satellite bands). S-CSRR also potentially result in circular polarization at 4.6–5.3 GHz with the minimum AR of 0.438 (at 5 GHz), at?7.8?8.2 GHz with the minimum AR of 0.732 (at 8GHz) and at 27 GHz with AR of 2.1 by constructing a U shape with four SCRRs. ---- Nurhayati Nurhayati, Fitri Yuli Zulkifli, Eko Setijadi, Bagus Edy Sukoco, MOHD NAJIB MOHD YASIN, Alexandre Manicoba De Oliveira More details can be found at this link: https://lnkd.in/eSxcUV3M

We wanted to thank everyone who joined us at the IEEE MTT-S International Microwave Symposium (IMS). If you haven't done so already, there is still time to see us today. On display at Booth 353 is our TTPX cryogenic probe station configured with GSG-style 40-GHz probes for on-wafer measurements of devices on full and partial wafers up to 51 mm (2 in) in diameter. This setup is designed to ensure optimal RF/microwave measurement performance at cryogenic temperatures. Our probe stations benefit device research requiring fundamental I-V, C-V, and other electrical measurements of test structures, including those for MMIC, LNA, or MEMS designs. #IMS2024 #DeviceResearch #ProbeStations #MaterialCharacterization

A paper supported by the OCTAPUS project entitled “Multi-User 6G Radio Access Networks: THz Fiber Wireless X-Haul of a Multi-Beam Millimeter Wave Antenna” was published in IEEE Journal of Lightwave Technology. The work by Maria Vargemidou, member of the WinPhoS Research Group, presents an experimental demonstration of the end-to-end signal flow and its enabling technologies, i.e. efficient optical #X-haul transport, #THz antennas and #mmWave Phased Array Antenna, ?shaping a promising technology roadmap for future high-density, high-capacity, multi-user #6G networks ? You can find the article at: https://lnkd.in/eJCFy8xX

?? New #ieeetap #featured #article ?? Single-Transistor Impedance Matching Circuit for Over-Hundred-Octave Active Antennas Bandwidth enhancement through impedance matching has been a constant pursuit for antennas. This paper proposes an active impedance matching circuit with an over-hundred-octave bandwidth based on a single field effect transistor (FET) biased in its ohmic region. With it, an active antenna is realized, covering a 10-1800 MHz bandwidth. S. Wang and Y. Li, "Single-Transistor Impedance Matching Circuit for Over-Hundred-Octave Active Antennas," in IEEE Transactions on Antennas and Propagation, vol. 72, no. 3, pp. 2391-2398, March 2024, doi: 10.1109/TAP.2024.3351203. ?? Read it at: https://lnkd.in/draFGw5s IEEE IEEE AP-S Young Professionals IEEE Antennas and Propagation Society

I am truly passionate about the field of microwaves and radio frequencies. Since discovering this fascinating field of study, I have been captivated by the elegance and complexity of electromagnetic waves and their applications. My second year as an IEEE member. IEEE IEEE Microwave Theory & Technology Society

We are pleased to share the graphical abstract "Design and Implementation of Integrated Dual-Mode Pulse and Continuous-Wave Electron Paramagnetic Resonance Spectrometers". ?? Authored by: Jui-Hung Sun; Difei Wu; Peter Qin; Constantine Sideris In this work, we present the first realization of a fully integrated pulse EPR spectrometer on-chip. The spectrometer utilizes a subharmonic direct-conversion architecture that enables an on-chip oscillator to be used as a dual-mode EPR sensing cell, capable of both CW and pulse-mode operation. An on-chip reference oscillator is used to injection-lock the sensor to form pulses and also to downconvert the pulse EPR signal. ?? Continue reading on IEEE Xplore here: https://loom.ly/AObhWcI #TBioCAS #Biomedical #CircuitsandSystems #graphicalabstract