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Analysis of mm-Wave CMOS Rectifiers and Ka-Band Implementation |
This paper presents an in-depth mm-Wave CMOS rectification analysis, with an analysis methodology that enables a transient-based approach. The analysis sheds light on the mechanisms responsible for CMOS rectification and the limiting factors in the pursuit for higher power conversion efficiency (PCE). A topology for 5G mm-Wave harvesting using 65-nm CMOS is described. The rectifier circuit is based on a cross-coupled differential core that is enhanced by the addition of harmonic suppressing capacitors. |
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A 272–341-GHz Integrated Amplifier-Frequency-Doubler Chain in 65-nm CMOS |
This letter presents the development of a wideband amplifier-frequency-doubler chain operating at around 300 GHz based on a 65-nm CMOS technology. A new output matching technique for the frequency doubler (FD) is proposed, which provides extensively improved bandwidth and output power compared to a conventional approach often used. In addition, a five-stage transformer-based differential power amplifier has been developed that precedes the FD for sufficient input power and improved overall conversion gain. |
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An f/0.27 High-Gain Lens-Antenna for Ultra-Small Platforms at THz Frequencies |
The development of a low focal number and low-mass lens antenna is presented that enables terahertz spectroscopy applications on ultracompact platforms. The antenna operates efficiently over a 20% fractional bandwidth, from 450 to 550 GHz, with a gain of 50 dBi at 500 GHz. The antenna consists of a hyperbolic silicon lens that is placed in a record low focal number configuration (f#=0.27) with respect to an advanced waveguide feed. |
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Resonant Impedance Tuners: Theory, Design, Power Handling, and Repeatability |
The theory of coupled-resonator-based impedance tuners is presented, establishing coverage limitations for two-and three-resonator designs. Besides the advantages of resonant impedance tuners, practical considerations including resonator loss and limited tuning range are included in the analysis. A proof-of-concept three-pole impedance tuner is shown. The tuner achieves at least 90% Smith chart coverage from 4 to 8 GHz while maintaining minimum transducer losses of 0.4 dB. |
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Systematic Study of Two-color Air Plasma Broadband THz-TDS |
The lateral and temporal walk-offs between fundamental wave and second harmonic wave are compensated simultaneously, which enhances THz conversion efficiency by a factor of 3 in a homemade air plasma system. Second harmonic generation efficiency is also optimized for THz radiation. Together with a dual-wavelength half-waveplate, a high THz conversion efficiency of > 0.06% is achieved at 800 nm excitation in the dry air environment, corresponding to an overall enhancement factor of 6. |
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State of the Industry: Diversity in the Workplace |
In a recent Women in Microwaves (WIM) column, Sherry Hess shared her insights based on her prior involvement in the Women in Engineering panel discussion at the 2022 Design Automation Conference (DAC) last summer. The article, titled "Real Advice for Today's Women in Engineering," delved into the history and experiences of the panelists, which included Geeta Pyne of Intuit, Susanna Holt of Autodesk, Radhika Shankar of Synopsys, and Sherry herself (Sherry Hess of Cadence), all of whom have navigated the challenges of working in a predominantly male-dominated field of engineering. |
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Candidate: Piero Angeletti, European Space Agency (ESA)
Lecture Topic: Multibeam Antennas and Beamforming Networks
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2023 IEEE MTT-S and AP-S Inter-Society Distinguished Lecturer |
The Inter-Society Committee of the IEEE Microwave Theory and Technology Society (MTT-S) together with the IEEE Antennas and Propagation Society (AP-S) is excited to announce the launch of the Inter-Society Distinguished Lecturer (ISDL) program. The 2023 IEEE ISDL candidate has been unveiled which spans the term of three years. |
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BMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) |
The SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference is a biennial forum on microwave, millimeter wave, terahertz and photonics methods and techniques for both science and engineering, sponsored by the Brazilian Microwave and Optoelectronics Society (SBMO) and the IEEE Microwave Theory and Techniques Society of the Institute of Electrical and Electronics Engineers (IEEE MTT-S). |
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MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP 2023) |
IEEE MTT-S IMWS-AMP 2023 is organized by University of Electronic Science and Technology of China, co-sponsored by National University of Singapore Research Institute (Chongqing).
The purpose of this platform is to boost technical and educational activities as well as exchanges and collaborations within the international microwave community.
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IEEE MTT-S Latin America Microwave Conference (LAMC-2023) |
The IEEE MTT-S AdCom approved an initiative to create the IEEE MTT-S Latin America Microwave Conference (LAMC), to be held in the second week of December, every two years, starting in 2016. LAMC has a general scope on RF and microwave engineering and technologies and aims to achieve a high level of technical quality. |
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IMS Submission Deadline Approaching | Dec 5, 2023 |
IMS is the flagship event in a week dedicated to all things microwaves and RF. The week also includes the IEEE MTT-S Radio Frequency Integrated Circuits Symposium (RFIC) and the Automatic Radio Frequency Techniques Group (ARFTG). Submit your technical paper by Dec 5, 2023.
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Editor-in-Chief
Dr. Hjalti Sigmarsson
University of Oklahoma, USA
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Managing Editor
Dr. Tejinder Singh
Dell Technologies, Canada
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