Enhanced microwave ferromagnetic resonance absorption and bandwidth using a microstrip meander line with step-impedance low-pass filter in a yttrium iron garnet–gallium arsenide layer structure

2008 ◽  
Vol 103 (7) ◽  
pp. 07E915 ◽  
Author(s):  
Gang Qiu ◽  
Chen S. Tsai ◽  
Masatoshi M. Kobayashi ◽  
Bert S. T. Wang
Keyword(s):  
Gallium Arsenide ◽  
Yttrium Iron Garnet ◽  
Layer Structure ◽  
Resonance Absorption ◽  
Yttrium Iron ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Iron Garnet ◽  
Meander Line

Numerical simulation of experimental resonance absorption spectra and diffraction of synchrotron radiation in yttrium iron garnet

2006 ◽  
Vol 51 (2) ◽  
pp. 192-200 ◽  
Author(s):  
A. M. Kolchinskaya ◽  
A. N. Artem’ev ◽  
V. E. Dmitrienko ◽  
F. V. Zabelin ◽  
A. G. Maevskiĭ ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Synchrotron Radiation ◽  
Absorption Spectra ◽  
Yttrium Iron Garnet ◽  
Resonance Absorption ◽  
Yttrium Iron ◽  
Iron Garnet

Compact semilumped elliptic-function low-pass filter using microstrip meander line

2007 ◽  
Vol 49 (7) ◽  
pp. 1777-1779 ◽  
Author(s):  
Ju Gab Lee ◽  
Wu Seong Lee ◽  
Jae Jong Ryu ◽  
Yeon Kwan Moon ◽  
Joong Ho Jang ◽  
...  
Keyword(s):  
Elliptic Function ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Meander Line

Investigations on Three-Pole Microstrip Low-Pass Filters Incorporated with DGS and Fractals for Selectivity Improvement

2021 ◽  
Author(s):  
Ch. Murali Krishna ◽  
Sudipta Das ◽  
Chaitali Koley ◽  
B. T. P. Madhav
Keyword(s):  
Wireless Lan ◽  
Simulation Models ◽  
Pass Filter ◽  
Low Pass Filter ◽  
High Frequency Structure Simulator ◽  
Compact Size ◽  
Low Pass ◽  
Low Pass Filters ◽  
Parameter Values ◽  
Meander Line

In this paper, an investigation on compact microstrip low-pass filters (MLPFs) with extremely perfect low-pass characteristics and improved out-band suppression has been carried out for the improvement of the selectivity parameter ([Formula: see text]). For this purpose, two different defected ground structures (DGSs) based on Moore fractals and Meander line have been designed and experimentally validated. The proposed third-order low-pass filter (LPF) configurations are designed and simulated using the High-Frequency Structure Simulator (HFSS). To validate the simulation models, the prototypes of the suggested low-pass filters are fabricated using Teflon (TM) substrate having a relative permittivity of 2.65 and a loss tangent of 0.001, and measured using the Vector Network Analyzer. The simulation and measurement results are in good agreement. The proposed filters occupy a compact size of [Formula: see text]. The selectivity parameter values for the proposed Moore fractals- and Meander line-modeled DGS-based LPFs are 425[Formula: see text]dB/GHz and 850[Formula: see text]dB/GHz, respectively. The proposed microstrip low-pass filters offer a significant improvement in the selectivity parameter, offering a maximum value of 850[Formula: see text]dB/GHz. The proposed filters exhibit a very high figure of merit (FOM), reporting 71,335 for Moore fractals-based LPF and 118,354 for the Meander line-based LPF. These proposed filters are suitable for advanced mobile phone services, [Formula: see text]-band radar, Global Positioning System, mobile, paging services, Wi-Fi, Bluetooth and wireless LAN.

Analysis and lattice imaging of a transitional event on garnets

1978 ◽  
Vol 36 (1) ◽  
pp. 270-271
Author(s):  
J.Y. Laval
Keyword(s):  
Yttrium Iron Garnet ◽  
Reciprocal Lattice ◽  
Transitional Zone ◽  
Lattice Imaging ◽  
Yttrium Iron ◽  
X Ray ◽  
Ionic Process ◽  
The Matrix ◽  
High Resolution Technique ◽  
Iron Garnet

The exsolution of magnetite from a substituted Yttrium Iron Garnet, containing an iron excess may lead to a transitional event. This event is characterized hy the formation of a transitional zone at the center of which the magnetite nucleates (Fig.1). Since there is a contrast between the matrix and these zones and since selected area diffraction does not show any difference between those zones and the matrix in the reciprocal lattice, it is of interest to analyze the structure of the transitional zones.By using simultaneously different techniques in electron microscopy, (oscillating crystal method microdiffraction and X-ray microanalysis)one may resolve the ionic process corresponding to the transitional event and image this event subsequently by high resolution technique.

Antisite Defects in Yttrium Iron Garnet

1997 ◽  
Vol 07 (C1) ◽  
pp. C1-283-C1-286
Author(s):  
P. Novák ◽  
J. Englich ◽  
H. Stepánková ◽  
J. Kohout ◽  
H. Lütgemeier ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Antisite Defects ◽  
Iron Garnet

ANISOTROPY OF RUTHENIUM-SUBSTITUTED YTTRIUM-IRON-GARNET

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-200-C1-201 ◽  
Author(s):  
P. HANSEN ◽  
W. TOLKSDORF
Keyword(s):  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Iron Garnet

Design of Programmable Wideband Low Pass Filter with Continuous-Time/Discrete-Time Hybrid Architecture

2017 ◽  
Vol E100.C (10) ◽  
pp. 858-865 ◽  
Author(s):  
Yohei MORISHITA ◽  
Koichi MIZUNO ◽  
Junji SATO ◽  
Koji TAKINAMI ◽  
Kazuaki TAKAHASHI
Keyword(s):  
Discrete Time ◽  
Continuous Time ◽  
Hybrid Architecture ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass
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