Results 41 to 50 of about 242,490 (308)

Finite frequency selective surface modelling

The 8th European Conference on Antennas and Propagation (EuCAP 2014), 2014
In this paper we describe the development of an electromagnetic modelling technique to investigate edge illumination effects on finite size FSS performance. The work extends the commonly used unit cell approach and models the FSS as a linear array with Gaussian beam excitation.
Dickie, Raymond, Cahill, Robert, Fusco, Vincent; id_orcid 0000-0002-4041-4027   +2 more
openaire   +3 more sources

Tuning Technique for Active FSS Arrays [PDF]

, 2009
A novel biasing technique is described for active frequency selective slot arrays. The bandpass response can be switched between transmitting and reflecting modes, or tuned over a predetermined frequency range using two different biasing circuit ...
Parker, Edward A., Robertson, J.-B., Sanz-Izquierdo, Benito, Batchelor, John C.   +3 more
core   +1 more source

Study of Printing Errors in Digitally Fabricated FSS [PDF]

, 2013
Low cost fabrication techniques might give rise to defects in electromagnetic structures. This paper investigates the detrimental effect of producing frequency selective screens with differing percentages of absent square loop elements. It is shown that
Parker, Edward A., Ziai, M. Ali, Edward A. Parker, John C. Batchelor, Turki, Badredin M., Stephen G. Yeates, Veronica Sanchez-Romaguera, Sanchez-Romaguera, Veronica, M. Ali Ziai, Batchelor, John C., Badredin M. Turki, Yeates, Stephen   +11 more
core   +1 more source

Frequency Selective Surface With Two Quasi-Independent Notch Frequencies

IEEE Access, 2019
A double-layer frequency selective surface (FSS) built on FR4 substrate exhibiting two notch frequencies in the 0-10-GHz range is introduced. Recently published examples demonstrate that further research needs to be undergone for obtaining separate ...
Ladislau Matekovits, Aldo De Sabata, Alndrei-Marius Silaghi   +2 more
doaj   +1 more source

Absorptive/Transmissive Frequency Selective Surface With Wide Absorption Band

IEEE Access, 2019
An absorptive/transmissive frequency selective surface (ATFSS) with absorption bands at both sides of a passband is presented. Equivalent circuits of the ATFSS that consists of a lossy frequency selective surface (FSS) and a lossless FSS were modeled. To
Qingxin Guo, Jianxun Su, Zengrui Li, Lamar Y. Yang, Jiming Song   +4 more
doaj   +1 more source

Frequency and phase locking of laser cavity solitons [PDF]

, 2012
Self-localized states or dissipative solitons have the freedom of translation in systems with a homogeneous background. When compared to cavity solitons in coherently driven nonlinear optical systems, laser cavity solitons have the additional freedom of ...
Firth, William, Paulau, P.V., W. J. Firth, Firth, W. J., Y. Noblet, G. -L. Oppo, Oppo, Gian-Luca, Ackemann, T., McIntyre, C., T. Ackemann, Noblet, Y., Colet, Pere, Oppo, G-L, P. V. Paulau, Ackemann, Thorsten, P. Colet, Noblet, Yoann, McIntyre, Craig, Colet, P., C. McIntyre   +19 more
core   +1 more source

Inductive Frequency Selective Surface: An Application for Dichroic Sub-Reflectors

IEEE Access, 2020
An Inductive Frequency Selective Surface (IFSS) self-standing dichroic sub-reflector is presented, which allows the transmission of two frequency bands and reflection of a third band. The operating frequency of the sub-reflector is designed to work at Ku,
Juan A. Vasquez-Peralvo, Jose-Manuel Fernandez-Gonzalez, Pavel Valtr, Jonathan M. Rigelsford   +3 more
doaj   +1 more source

A frequency selective surface loaded two-layer composite for tunable microwave absorption

Materials Research Express, 2022
To obtain tunable microwave absorption, a strategy of constructing a frequency selective surface (FSS) on a two-layer composite is proposed. The designed FSS loaded two-layer composite is composed of a FSS constructed by evenly spaced circular copper ...
Yiming Zhao, Qichao Wang, Yungang Sun, Shanyong Xuan, Minghang Li   +4 more
doaj   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source

Bandwidth in Cross Dipole Frequency Selective Surfaces [PDF]

, 2018
This paper presents the implementation outcomes of the Equivalent Circuit Model (ECM) acting in conjunction with the Matrix Cascading Method (MCM) for bandwidth calculation in cross dipole Frequency Selective Surfaces (FSSs).
Mario Alberto Rodríguez-Barrera, Rodríguez-Barrera, Mario Alberto, Walter Pereira Carpes-Jr, Rodríguez Barrera, Mario Alberto, Carpes-Jr, Walter Pereira   +4 more
core   +1 more source