An X‐band high‐efficiency GaN load modulated balanced amplifier MMIC
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32309
Abstract: An X‐band high‐efficiency GaN load modulated balanced amplifier monolithic microwave integrated circuit (MMIC) composed of 90° Lange Couplers at radio frequency (RF) input and output, a pair of balanced power amplifier (BPA) and a control… read more here.
Keywords: efficiency gan; band high; gan load; load modulated ... See more keywords
Design of an X-band high-efficiency coaxial relativistic klystron oscillator packaged with permanent magnet
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Plasmas"
DOI: 10.1063/5.0226326
Abstract: An X-band high-power microwave (HPM) oscillator packaged with permanent magnets is proposed. The oscillator employs a radially non-uniform modulation cavity structure to enhance the modulation depth of the electron beam, thereby improving the conversion efficiency… read more here.
Keywords: packaged permanent; permanent magnet; efficiency; oscillator ... See more keywords
An annular explosive cathode with a shielding ring for the X-band high-impedance relativistic klystron amplifier
Sign Up to like & getrecommendations! Published in 2025 at "Physica Scripta"
DOI: 10.1088/1402-4896/adda95
Abstract: High impedance (>1 kΩ) relativistic klystron amplifiers (RKAs) are able to avoid power capacity limitations with higher conversion efficiency, compared with low impedance RKAs. An annular explosive cathode is investigated to offer moderate density electron… read more here.
Keywords: explosive cathode; annular explosive; impedance; high impedance ... See more keywords
Dual-Band and High-Efficiency Circular Polarization Convertor Based on Anisotropic Metamaterial
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2019.2962299
Abstract: In this paper, a dual-band and high-efficiency circular polarization (CP) convertor based on anisotropic metamaterial (AMM) was proposed and investigated in microwave region. The proposed AMM based CP convertor is composed of a sub-wavelength metal… read more here.
Keywords: dual band; polarization; band high; convertor based ... See more keywords
Using Multiple Resonances to Widen the Band for High-Permeability Spiral-Pair Metamaterials
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2019.2908148
Abstract: In this letter, we propose a new possibility to design a wider band for high-permeability material using metamaterial inclusions. A metamaterial formed by U-spiral-pair resonator with incremental variations in dimensions is proposed and analyzed. By… read more here.
Keywords: spiral pair; permeability; band high; high permeability ... See more keywords
75–110-GHz $W$ -band High-Linearity Traveling-Wave T/R Switch by Using Negative Gate/Body-Biasing in 90-nm CMOS
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2017.2690837
Abstract: In this letter, a 75–110-GHz W-band high-linearity traveling-wave single-pole-double-throw switch in 90-nm CMOS GUTM 1P9M is presented. Compared with the traditional traveling-wave switch with negative body-biasing technique, the proposed design applies the negative biasing to… read more here.
Keywords: 110 ghz; band high; linearity traveling; ghz band ... See more keywords
A review on mid-band and high-band 5G MIMO antenna designs: challenges and research directions
Sign Up to like & getrecommendations! Published in 2025 at "EURASIP Journal on Wireless Communications and Networking"
DOI: 10.1186/s13638-025-02443-2
Abstract: Modern wireless communication demands 5G-enabled systems capable of handling high data rate and channel bandwidth. Recently, circular-polarized multiple-input–multiple-output technology in the user equipment has dragged attention of the designers. Antenna design involves complex mathematical formulations… read more here.
Keywords: band; mid band; mimo antenna; high band ... See more keywords
Resolved Hyperfine at L-band for High-Spin CoEDTA, A Model for Co Sites in Proteins
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Molecular Sciences"
DOI: 10.3390/ijms20102385
Abstract: Low-frequency electron paramagnetic resonance (EPR) spectra were obtained for the Co complex of ethylene diamine tetraacetic acid (CoEDTA). It was found that the cobalt hyperfine at geff-mid is better resolved at a low frequency, L-band… read more here.
Keywords: cobalt; band high; hyperfine band; band ... See more keywords
Double-layer symmetric gratings with bound states in the continuum for dual-band high-Q optical sensing
Sign Up to like & getrecommendations! Published in 2022 at "Beilstein Journal of Nanotechnology"
DOI: 10.3762/bjnano.13.116
Abstract: Herein, we theoretically demonstrate that a double-layer symmetric gratings (DLSG) resonator consisting of a low-refractive-index layer sandwiched between two high-contrast gratings (HCG) layers, can host dual-band high-quality (Q) factor resonance. We find that the artificial… read more here.
Keywords: double layer; dual band; band high; layer symmetric ... See more keywords