Improved Bend Waveguide Design for Terahertz Transmission

Degirmenci, E.; Surre, F.; Philippe, Severine; Maldonado-Basilio, Ramón; Landais, Pascal

doi:10.1109/tthz.2011.2177170

Cited by 4 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our early work, we proposed the use of photonic crystal (PhC) technology to assist the design of THz VEDs based on SWSs as traveling wave tubes (TWTs) and backward wave oscillators (BWOs), [4]. PhCs are a well-known technology for the engineering of frequency-selective synthetic media by means of the property of exhibiting a photonic bandgap [6]- [8]. The use of PhC technology is proposed to relax some of the issues which make the realization of conventional SWSs and coupler for THz vacuum electron devices very demanding.…”

Section: Introductionmentioning

confidence: 99%

Photonic Crystal-Coupler for Sheet Beam THz Vacuum Electron Tubes

Letizia

Mineo

Paoloni

2016

IEEE Electron Device Lett.

View full text Add to dashboard Cite

Fig. 1. Schematic diagram of a typical coupler for a sheet beam in a CRW. Abstract-Photonic Crystal (PhC) technology was recently proposed as a compact and effective solution to improve the performance and ease the fabrication of terahertz vacuum electron devices. In particular, the introduction of defects in a bidimensional, all metallic PhC provides very effective transmission of the useful signal in a compact input/output coupler where a novel tunnel for sheet-beam injection/collection is realized. Simulation results are here experimentally validated via measurements on a Ku-band scaled model of the PhC-coupler which confirm the validity of the concept.

show abstract

Section: Introductionmentioning

confidence: 99%

Photonic Crystal-Coupler for Sheet Beam THz Vacuum Electron Tubes

Letizia

Mineo

Paoloni

2016

IEEE Electron Device Lett.

View full text Add to dashboard Cite

show abstract

“…In the THz range, the losses caused by finite conductivity of metals are comparatively smaller than those at optical frequencies. They have also been used in the THz frequency range to study their filtering and wave guiding capability [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Finite element method analysis of band gap and transmission of two-dimensional metallic photonic crystals at terahertz frequencies

Degirmenci

Landais

2013

Appl. Opt.

View full text Add to dashboard Cite

Photonic band gap and transmission characteristics of 2D metallic photonic crystals at THz frequencies have been investigated using finite element method (FEM). Photonic crystals composed of metallic rods in air, in square and triangular lattice arrangements, are considered for transverse electric and transverse magnetic polarizations. The modes and band gap characteristics of metallic photonic crystal structure are investigated by solving the eigenvalue problem over a unit cell of the lattice using periodic boundary conditions. A photonic band gap diagram of dielectric photonic crystal in square lattice array is also considered and compared with well-known plane wave expansion results verifying our FEM approach. The photonic band gap designs for both dielectric and metallic photonic crystals are consistent with previous studies obtained by different methods. Perfect match is obtained between photonic band gap diagrams and transmission spectra of corresponding lattice structure.

show abstract

“…In [484], it is considered the possibility of arraying metal cylinders in a square lattice to create a 2D EBG structure. Then, by removing one or two rows, a propagation channel is created, see Fig.…”

Section: Periodic and Electromagnetic Bandgap Structuresmentioning

confidence: 99%

“…Single mode operation is achieved between 1.2 THz and 3.7 THz when only one row is removed (waveguide width of a = 80 µm) and from 1 THz to 2 THz when two rows are removed (waveguide width of a = 130 µm). The typical trade off between bandwidth and losses is [484]. Cylinder radius is r = 10 mum and standard period is p = 50 mum.…”

Section: Periodic and Electromagnetic Bandgap Structuresmentioning

confidence: 99%

Analysis and design of efficient passive components for the millimeter-wave and THz bands

Verdú¹,

Antonio²

View full text Add to dashboard Cite

To my parents, brother and sister."Success is peace of mind which is a direct result of self-satisfaction in knowing you made the effort to become the best of which you are capable."Jonh Wooden "Lo que con mucho trabajo se adquiere, más se ama." Aristóteles AgradecimientosLa realización de esta tesis ha implicado no pocos años de trabajo y esfuerzo. Durante este importante periodo de mi vida han sido muchas las personas han estado a mi lado, brindándome su apoyo, ayuda, cariño y amor. Ya sea de una forma u otra, todas estas personas han contribuido a que este trabajo haya sido posible dando como fruto esta tesis. A todos ellos, me gustaría dedicarles un agradecimiento muy especial de todo corazón.Sin duda alguna, debo dar las gracias en primer lugar a mi director de tesis Mariano Baquero. Mariano, has sido un padre para mí profesionalmente hablando. Te conocí como alumno en las clases de Microondas, en las cuales me abriste la puerta a un conocimiento que me fascinó.Recuerdo perfectamente cuando fui a verte para preguntarte si podrías dirigirme el Proyecto Final de Carrera, y desde ese año 2009 hemos estado trabajando juntos. Quiero agradecerte no sólo haberme dado la oportunidad de trabajar en cada momento en elárea que más me ha gustado, sino el haberte preocupado por mí a nivel personal, velando siempre por mis intereses, ayudándome a desarrollarme personal y profesionalmente. Extiendo en este sentido mi agradecimiento a Miguel Ferrando. Si Mariano es el padre, tu serías sin duda el abuelo. Sin tu ayuda, la beca para la realización de esta tesis y los proyectos que han respaldado la misma no hubieran sido posibles. Tu esfuerzo ha permitido que el Grupo de Radiación Electromagnética (GRE) esté hoy dónde esta y que sus miembros nos beneficiemos de un entorno de trabajo excelente, produciendo trabajo de calidad. Debo agradecerte también tus siempre innovadoras ideas, algunas de las cuales se han convertido en una realidad plasmada en esta tesis.Una mención especial merece Daniel Sánchez. Dani, aunque tu nombre no figure como co-director bien sabes que podría estarlo. Jamás podré agradecerte lo suficiente la ayuda que me has prestado. Cuántas horas dedicadas a enseñarme en un sin fin de aspectos sin esperar nada a cambio, apoyándome también en los momentos difíciles, siempre presentes en una tesis. Bien sabes que lo mismo has hecho con cada uno tus compañeros, por eso eres el pilar del GRE Dani.Otra persona a la que estoy muy agradecido es a Vicente Boria. Tu activa colaboración en la dirección de esta tesis ha sido indispensable para la consecución de los resultados más relevantes de la misma. Sugeriste muy acertadamente una estancia en la Queen's University of Belfast, y me abriste la puerta a nuevas líneas de investigación en las cuales seguimos trabajando actualmente. Gracias por preocuparte por mi a nivel profesional y personal.En elámbito anterior, extiendo los agradecimientos a todo el GRE. It is also very important for me to acknowledge Prof. Vince Fusco. Thank you for hosting me in your group in Belfast ...

show abstract

Improved Bend Waveguide Design for Terahertz Transmission

Cited by 4 publications

References 33 publications

Photonic Crystal-Coupler for Sheet Beam THz Vacuum Electron Tubes

Photonic Crystal-Coupler for Sheet Beam THz Vacuum Electron Tubes

Finite element method analysis of band gap and transmission of two-dimensional metallic photonic crystals at terahertz frequencies

Analysis and design of efficient passive components for the millimeter-wave and THz bands

Contact Info

Product

Resources

About