Results 31 to 40 of about 634,894 (330)
Design of a Compact Quad-Channel Microstrip Diplexer for L and S Band Applications
Micromachines, 2023 In this paper, two novel dual-band bandpass filters (BPFs) and a compact quad-channel diplexer working at 1.7/3.3 GHz and 1.9/3.6 GHz are proposed. In the proposed diplexer design, triangular loop resonators and rectangular loop resonators are used ...
Sobhan Roshani +6 more
doaj +1 more source
A Full Metal-Rimmed Antenna Using Capacitive Feed and Ground for LTE Mobile Handsets [PDF]
Journal of Electromagnetic Engineering and Science, 2022 In this letter, a full metal-rimmed antenna using a capacitive feed and ground is proposed and designed for LTE mobile handsets. The full metal rimmed antenna can be structurally represented by a loop antenna formed along the metal rim and PCB ground ...
Jae-Gon Lee
doaj +1 more source
Quantum Waveguide Transport in Serial Stub and Loop Structures [PDF]
, 1994 We have studied the quantum transmission properties of serial stub and loop structures. Throughout we have considered free electron networks and the scattering arises solely due to the geometric nature of the problem.
Deo, P. Singha, Jayannavar, A. M.
core +2 more sources
Journal of Indian Society of Pedodontics and Preventive Dentistry, 2014 Aims: To compare the clinical efficacy of two space maintainers namely, conventional band and loop and Fiber Reinforced Composite Resin (FRCR) space maintainers .
A Garg, F Samadi, J N Jaiswal, S Saha
doaj +1 more source
Clinical evaluation of the loop-design fibre-reinforced composite and the band-and-loop space maintainers [PDF]
South African Dental Journal, 2018 PURPOSE: The fibre-reinforced composite space maintainer (FRCSM) has been suggested as an alternative to the band-and-loop space maintainer (BLSM). The aim of this in-vivo study was to evaluate the clinical performance and the reasons for failure of the two types of fixed space maintainers over a six-month period. METHODS: Twenty patients, ranging from
Potgieter, Nicoline +2 more
openaire +3 more sources
Broadband absorber with dispersive metamaterials
Nanophotonics, 2023 A broadband absorber that utilizes a dispersive metamaterial and covers the entire microwave X-band (8–12 GHz) is proposed in the present study. An ideal absorber attached to the surface of a perfect electric conductor requires the permittivity of the ...
Han WonHeum, Park Q-Han
doaj +1 more source
Engineering flat electronic bands in quasiperiodic and fractal loop geometries [PDF]
Physics Letters A, 2015 9 pages, 8 ...
Nandy, Atanu, Chakrabarti, Arunava
openaire +2 more sources
Evolution of the spectrum of the Hubbard model with filling [PDF]
, 2006 The diagram technique for the one-band Hubbard model is formulated for the case of moderate to strong Hubbard repulsion. The expansion in powers of the hopping constant is expressed in terms of site cumulants of electron creation and annihilation ...
Sherman, A.
core +4 more sources
International Journal of Antennas and Propagation, 2017 In this study, the principle of band suppressing an UWB antenna by attaching a small resonator is explained by developing its equivalent circuit. The realized UWB antenna is a conical monopole antenna that contains a split loop for band suppression.
Eun-Seok Jang +3 more
doaj +1 more source
Dual-Band RFID Tag Antenna Based on the Hilbert-Curve Fractal for HF and UHF Applications [PDF]
, 2016 A novel single-radiator card-type tag is proposed which is constructed using a series Hilbert-curve loop and matched stub for high frequency (HF)/ultra high frequency (UHF) dual-band radio frequency identification (RFID) positioning applications.
Alibakhshikenari, Mohammad +4 more
core +1 more source